ImageView

Added in API level 1

public class

ImageView

extends View

java.lang.Object
↳	android.view.View
	↳	android.widget.ImageView

Known Direct Subclasses

AppCompatImageView, ImageButton, QuickContactBadge

Known Indirect Subclasses

AppCompatImageButton, FloatingActionButton, ZoomButton

Class Overview

Displays an arbitrary image, such as an icon. The ImageView class can load images from various sources (such as resources or content providers), takes care of computing its measurement from the image so that it can be used in any layout manager, and provides various display options such as scaling and tinting.

Summary

Nested Classes
enum	ImageView.ScaleType	Options for scaling the bounds of an image to the bounds of this view.

XML Attributes
Attribute Name	Related Method	Description
android:adjustViewBounds	setAdjustViewBounds(boolean)	Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.
android:baseline	setBaseline(int)	The offset of the baseline within this view.
android:baselineAlignBottom	setBaselineAlignBottom(boolean)	If true, the image view will be baseline aligned with based on its bottom edge.
android:cropToPadding	setCropToPadding(boolean)	If true, the image will be cropped to fit within its padding.
android:maxHeight	setMaxHeight(int)	An optional argument to supply a maximum height for this view.
android:maxWidth	setMaxWidth(int)	An optional argument to supply a maximum width for this view.
android:scaleType	setScaleType(ImageView.ScaleType)	Controls how the image should be resized or moved to match the size of this ImageView.
android:src	setImageResource(int)	Sets a drawable as the content of this ImageView.
android:tint	setImageTintList(ColorStateList)	Set a tinting color for the image.
android:tintMode	setImageTintMode(PorterDuff.Mode)	Blending mode used to apply the image tint.

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Inherited XML Attributes

From class android.view.View

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Inherited Constants

From class android.view.View

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Inherited Fields

From class android.view.View

Public Constructors
	ImageView(Context context)
	ImageView(Context context, AttributeSet attrs)
	ImageView(Context context, AttributeSet attrs, int defStyleAttr)
	ImageView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Public Methods
final void	clearColorFilter()
void	drawableHotspotChanged(float x, float y) This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.
CharSequence	getAccessibilityClassName() Return the class name of this object to be used for accessibility purposes.
boolean	getAdjustViewBounds() True when ImageView is adjusting its bounds to preserve the aspect ratio of its drawable
int	getBaseline() Return the offset of the widget's text baseline from the widget's top boundary.
boolean	getBaselineAlignBottom() Return whether this view's baseline will be considered the bottom of the view.
ColorFilter	getColorFilter() Returns the active color filter for this ImageView.
boolean	getCropToPadding() Return whether this ImageView crops to padding.
Drawable	getDrawable() Return the view's drawable, or null if no drawable has been assigned.
int	getImageAlpha() Returns the alpha that will be applied to the drawable of this ImageView.
Matrix	getImageMatrix() Return the view's optional matrix.
ColorStateList	getImageTintList()
PorterDuff.Mode	getImageTintMode()
int	getMaxHeight() The maximum height of this view.
int	getMaxWidth() The maximum width of this view.
ImageView.ScaleType	getScaleType() Return the current scale type in use by this ImageView.
boolean	hasOverlappingRendering() Returns whether this View has content which overlaps.
void	invalidateDrawable(Drawable dr) Invalidates the specified Drawable.
boolean	isOpaque() Indicates whether this View is opaque.
void	jumpDrawablesToCurrentState() Call `Drawable.jumpToCurrentState()` on all Drawable objects associated with this view.
int[]	onCreateDrawableState(int extraSpace) Generate the new `Drawable` state for this view.
void	onRtlPropertiesChanged(int layoutDirection) Called when any RTL property (layout direction or text direction or text alignment) has been changed.
void	setAdjustViewBounds(boolean adjustViewBounds) Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.
void	setAlpha(int alpha) This method was deprecated in API level 16. use #setImageAlpha(int) instead
void	setBaseline(int baseline) Set the offset of the widget's text baseline from the widget's top boundary.
void	setBaselineAlignBottom(boolean aligned) Set whether to set the baseline of this view to the bottom of the view.
void	setColorFilter(ColorFilter cf) Apply an arbitrary colorfilter to the image.
final void	setColorFilter(int color) Set a tinting option for the image.
final void	setColorFilter(int color, PorterDuff.Mode mode) Set a tinting option for the image.
void	setCropToPadding(boolean cropToPadding) Sets whether this ImageView will crop to padding.
void	setImageAlpha(int alpha) Sets the alpha value that should be applied to the image.
void	setImageBitmap(Bitmap bm) Sets a Bitmap as the content of this ImageView.
void	setImageDrawable(Drawable drawable) Sets a drawable as the content of this ImageView.
void	setImageIcon(Icon icon) Sets the content of this ImageView to the specified Icon.
void	setImageLevel(int level) Sets the image level, when it is constructed from a `LevelListDrawable`.
void	setImageMatrix(Matrix matrix) Adds a transformation `Matrix` that is applied to the view's drawable when it is drawn.
void	setImageResource(int resId) Sets a drawable as the content of this ImageView.
void	setImageState(int[] state, boolean merge)
void	setImageTintList(ColorStateList tint) Applies a tint to the image drawable.
void	setImageTintMode(PorterDuff.Mode tintMode) Specifies the blending mode used to apply the tint specified by `setImageTintList(ColorStateList)`} to the image drawable.
void	setImageURI(Uri uri) Sets the content of this ImageView to the specified Uri.
void	setMaxHeight(int maxHeight) An optional argument to supply a maximum height for this view.
void	setMaxWidth(int maxWidth) An optional argument to supply a maximum width for this view.
void	setScaleType(ImageView.ScaleType scaleType) Controls how the image should be resized or moved to match the size of this ImageView.
void	setSelected(boolean selected) Changes the selection state of this view.
void	setVisibility(int visibility) Set the enabled state of this view.

Protected Methods
void	drawableStateChanged() This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.
void	onAttachedToWindow() This is called when the view is attached to a window.
void	onDetachedFromWindow() This is called when the view is detached from a window.
void	onDraw(Canvas canvas) Implement this to do your drawing.
void	onMeasure(int widthMeasureSpec, int heightMeasureSpec) Measure the view and its content to determine the measured width and the measured height.
boolean	setFrame(int l, int t, int r, int b) Assign a size and position to this view.
boolean	verifyDrawable(Drawable dr) If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.

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Inherited Methods

From class android.view.View

void	addChildrenForAccessibility(ArrayList<View> outChildren) Adds the children of this View relevant for accessibility to the given list as output.
void	addFocusables(ArrayList<View> views, int direction, int focusableMode) Adds any focusable views that are descendants of this view (possibly including this view if it is focusable itself) to views.
void	addFocusables(ArrayList<View> views, int direction) Add any focusable views that are descendants of this view (possibly including this view if it is focusable itself) to views.
void	addOnAttachStateChangeListener(View.OnAttachStateChangeListener listener) Add a listener for attach state changes.
void	addOnLayoutChangeListener(View.OnLayoutChangeListener listener) Add a listener that will be called when the bounds of the view change due to layout processing.
void	addTouchables(ArrayList<View> views) Add any touchable views that are descendants of this view (possibly including this view if it is touchable itself) to views.
ViewPropertyAnimator	animate() This method returns a ViewPropertyAnimator object, which can be used to animate specific properties on this View.
void	announceForAccessibility(CharSequence text) Convenience method for sending a `TYPE_ANNOUNCEMENT` `AccessibilityEvent` to make an announcement which is related to some sort of a context change for which none of the events representing UI transitions is a good fit.
boolean	awakenScrollBars(int startDelay) Trigger the scrollbars to draw.
boolean	awakenScrollBars(int startDelay, boolean invalidate) Trigger the scrollbars to draw.
boolean	awakenScrollBars() Trigger the scrollbars to draw.
void	bringToFront() Change the view's z order in the tree, so it's on top of other sibling views.
void	buildDrawingCache() Calling this method is equivalent to calling `buildDrawingCache(false)`.
void	buildDrawingCache(boolean autoScale) Forces the drawing cache to be built if the drawing cache is invalid.
void	buildLayer() Forces this view's layer to be created and this view to be rendered into its layer.
boolean	callOnClick() Directly call any attached OnClickListener.
boolean	canResolveLayoutDirection() Check if layout direction resolution can be done.
boolean	canResolveTextAlignment() Check if text alignment resolution can be done.
boolean	canResolveTextDirection() Check if text direction resolution can be done.
boolean	canScrollHorizontally(int direction) Check if this view can be scrolled horizontally in a certain direction.
boolean	canScrollVertically(int direction) Check if this view can be scrolled vertically in a certain direction.
void	cancelLongPress() Cancels a pending long press.
final void	cancelPendingInputEvents() Cancel any deferred high-level input events that were previously posted to the event queue.
boolean	checkInputConnectionProxy(View view) Called by the `InputMethodManager` when a view who is not the current input connection target is trying to make a call on the manager.
void	clearAnimation() Cancels any animations for this view.
void	clearFocus() Called when this view wants to give up focus.
static int	combineMeasuredStates(int curState, int newState) Merge two states as returned by `getMeasuredState()`.
int	computeHorizontalScrollExtent() Compute the horizontal extent of the horizontal scrollbar's thumb within the horizontal range.
int	computeHorizontalScrollOffset() Compute the horizontal offset of the horizontal scrollbar's thumb within the horizontal range.
int	computeHorizontalScrollRange() Compute the horizontal range that the horizontal scrollbar represents.
void	computeScroll() Called by a parent to request that a child update its values for mScrollX and mScrollY if necessary.
WindowInsets	computeSystemWindowInsets(WindowInsets in, Rect outLocalInsets) Compute insets that should be consumed by this view and the ones that should propagate to those under it.
int	computeVerticalScrollExtent() Compute the vertical extent of the vertical scrollbar's thumb within the vertical range.
int	computeVerticalScrollOffset() Compute the vertical offset of the vertical scrollbar's thumb within the horizontal range.
int	computeVerticalScrollRange() Compute the vertical range that the vertical scrollbar represents.
AccessibilityNodeInfo	createAccessibilityNodeInfo() Returns an `AccessibilityNodeInfo` representing this view from the point of view of an `AccessibilityService`.
void	createContextMenu(ContextMenu menu) Show the context menu for this view.
void	destroyDrawingCache() Frees the resources used by the drawing cache.
WindowInsets	dispatchApplyWindowInsets(WindowInsets insets) Request to apply the given window insets to this view or another view in its subtree.
void	dispatchConfigurationChanged(Configuration newConfig) Dispatch a notification about a resource configuration change down the view hierarchy.
void	dispatchDisplayHint(int hint) Dispatch a hint about whether this view is displayed.
boolean	dispatchDragEvent(DragEvent event) Detects if this View is enabled and has a drag event listener.
void	dispatchDraw(Canvas canvas) Called by draw to draw the child views.
void	dispatchDrawableHotspotChanged(float x, float y) Dispatches drawableHotspotChanged to all of this View's children.
boolean	dispatchGenericFocusedEvent(MotionEvent event) Dispatch a generic motion event to the currently focused view.
boolean	dispatchGenericMotionEvent(MotionEvent event) Dispatch a generic motion event.
boolean	dispatchGenericPointerEvent(MotionEvent event) Dispatch a generic motion event to the view under the first pointer.
boolean	dispatchHoverEvent(MotionEvent event) Dispatch a hover event.
boolean	dispatchKeyEvent(KeyEvent event) Dispatch a key event to the next view on the focus path.
boolean	dispatchKeyEventPreIme(KeyEvent event) Dispatch a key event before it is processed by any input method associated with the view hierarchy.
boolean	dispatchKeyShortcutEvent(KeyEvent event) Dispatches a key shortcut event.
boolean	dispatchNestedFling(float velocityX, float velocityY, boolean consumed) Dispatch a fling to a nested scrolling parent.
boolean	dispatchNestedPreFling(float velocityX, float velocityY) Dispatch a fling to a nested scrolling parent before it is processed by this view.
boolean	dispatchNestedPrePerformAccessibilityAction(int action, Bundle arguments) Report an accessibility action to this view's parents for delegated processing.
boolean	dispatchNestedPreScroll(int dx, int dy, int[] consumed, int[] offsetInWindow) Dispatch one step of a nested scroll in progress before this view consumes any portion of it.
boolean	dispatchNestedScroll(int dxConsumed, int dyConsumed, int dxUnconsumed, int dyUnconsumed, int[] offsetInWindow) Dispatch one step of a nested scroll in progress.
boolean	dispatchPopulateAccessibilityEvent(AccessibilityEvent event) Dispatches an `AccessibilityEvent` to the `View` first and then to its children for adding their text content to the event.
void	dispatchProvideStructure(ViewStructure structure) Dispatch creation of `ViewStructure` down the hierarchy.
void	dispatchRestoreInstanceState(SparseArray<Parcelable> container) Called by `restoreHierarchyState(android.util.SparseArray)` to retrieve the state for this view and its children.
void	dispatchSaveInstanceState(SparseArray<Parcelable> container) Called by `saveHierarchyState(android.util.SparseArray)` to store the state for this view and its children.
void	dispatchSetActivated(boolean activated) Dispatch setActivated to all of this View's children.
void	dispatchSetPressed(boolean pressed) Dispatch setPressed to all of this View's children.
void	dispatchSetSelected(boolean selected) Dispatch setSelected to all of this View's children.
void	dispatchSystemUiVisibilityChanged(int visibility) Dispatch callbacks to `setOnSystemUiVisibilityChangeListener(View.OnSystemUiVisibilityChangeListener)` down the view hierarchy.
boolean	dispatchTouchEvent(MotionEvent event) Pass the touch screen motion event down to the target view, or this view if it is the target.
boolean	dispatchTrackballEvent(MotionEvent event) Pass a trackball motion event down to the focused view.
boolean	dispatchUnhandledMove(View focused, int direction) This method is the last chance for the focused view and its ancestors to respond to an arrow key.
void	dispatchVisibilityChanged(View changedView, int visibility) Dispatch a view visibility change down the view hierarchy.
void	dispatchWindowFocusChanged(boolean hasFocus) Called when the window containing this view gains or loses window focus.
void	dispatchWindowSystemUiVisiblityChanged(int visible) Dispatch callbacks to `onWindowSystemUiVisibilityChanged(int)` down the view hierarchy.
void	dispatchWindowVisibilityChanged(int visibility) Dispatch a window visibility change down the view hierarchy.
void	draw(Canvas canvas) Manually render this view (and all of its children) to the given Canvas.
void	drawableHotspotChanged(float x, float y) This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.
void	drawableStateChanged() This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.
View	findFocus() Find the view in the hierarchy rooted at this view that currently has focus.
final View	findViewById(int id) Look for a child view with the given id.
final View	findViewWithTag(Object tag) Look for a child view with the given tag.
void	findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) Finds the Views that contain given text.
boolean	fitSystemWindows(Rect insets) This method was deprecated in API level 20. As of API 20 use `dispatchApplyWindowInsets(WindowInsets)` to apply insets to views. Views should override `onApplyWindowInsets(WindowInsets)` or use `setOnApplyWindowInsetsListener(android.view.View.OnApplyWindowInsetsListener)` to implement handling their own insets.
View	focusSearch(int direction) Find the nearest view in the specified direction that can take focus.
void	forceLayout() Forces this view to be laid out during the next layout pass.
static int	generateViewId() Generate a value suitable for use in `setId(int)`.
CharSequence	getAccessibilityClassName() Return the class name of this object to be used for accessibility purposes.
int	getAccessibilityLiveRegion() Gets the live region mode for this View.
AccessibilityNodeProvider	getAccessibilityNodeProvider() Gets the provider for managing a virtual view hierarchy rooted at this View and reported to `AccessibilityService`s that explore the window content.
int	getAccessibilityTraversalAfter() Gets the id of a view after which this one is visited in accessibility traversal.
int	getAccessibilityTraversalBefore() Gets the id of a view before which this one is visited in accessibility traversal.
float	getAlpha() The opacity of the view.
Animation	getAnimation() Get the animation currently associated with this view.
IBinder	getApplicationWindowToken() Retrieve a unique token identifying the top-level "real" window of the window that this view is attached to.
Drawable	getBackground() Gets the background drawable
ColorStateList	getBackgroundTintList() Return the tint applied to the background drawable, if specified.
PorterDuff.Mode	getBackgroundTintMode() Return the blending mode used to apply the tint to the background drawable, if specified.
int	getBaseline() Return the offset of the widget's text baseline from the widget's top boundary.
final int	getBottom() Bottom position of this view relative to its parent.
float	getBottomFadingEdgeStrength() Returns the strength, or intensity, of the bottom faded edge.
int	getBottomPaddingOffset() Amount by which to extend the bottom fading region.
float	getCameraDistance() Gets the distance along the Z axis from the camera to this view.
Rect	getClipBounds() Returns a copy of the current `clipBounds`.
boolean	getClipBounds(Rect outRect) Populates an output rectangle with the clip bounds of the view, returning `true` if successful or `false` if the view's clip bounds are `null`.
final boolean	getClipToOutline() Returns whether the Outline should be used to clip the contents of the View.
CharSequence	getContentDescription() Gets the `View` description.
final Context	getContext() Returns the context the view is running in, through which it can access the current theme, resources, etc.
ContextMenu.ContextMenuInfo	getContextMenuInfo() Views should implement this if they have extra information to associate with the context menu.
static int	getDefaultSize(int size, int measureSpec) Utility to return a default size.
Display	getDisplay() Gets the logical display to which the view's window has been attached.
final int[]	getDrawableState() Return an array of resource IDs of the drawable states representing the current state of the view.
Bitmap	getDrawingCache(boolean autoScale) Returns the bitmap in which this view drawing is cached.
Bitmap	getDrawingCache() Calling this method is equivalent to calling `getDrawingCache(false)`.
int	getDrawingCacheBackgroundColor()
int	getDrawingCacheQuality() Returns the quality of the drawing cache.
void	getDrawingRect(Rect outRect) Return the visible drawing bounds of your view.
long	getDrawingTime() Return the time at which the drawing of the view hierarchy started.
float	getElevation() The base elevation of this view relative to its parent, in pixels.
boolean	getFilterTouchesWhenObscured() Gets whether the framework should discard touches when the view's window is obscured by another visible window.
boolean	getFitsSystemWindows() Check for state of `setFitsSystemWindows(boolean)`.
ArrayList<View>	getFocusables(int direction) Find and return all focusable views that are descendants of this view, possibly including this view if it is focusable itself.
void	getFocusedRect(Rect r) When a view has focus and the user navigates away from it, the next view is searched for starting from the rectangle filled in by this method.
Drawable	getForeground() Returns the drawable used as the foreground of this View.
int	getForegroundGravity() Describes how the foreground is positioned.
ColorStateList	getForegroundTintList() Return the tint applied to the foreground drawable, if specified.
PorterDuff.Mode	getForegroundTintMode() Return the blending mode used to apply the tint to the foreground drawable, if specified.
boolean	getGlobalVisibleRect(Rect r, Point globalOffset) If some part of this view is not clipped by any of its parents, then return that area in r in global (root) coordinates.
final boolean	getGlobalVisibleRect(Rect r)
Handler	getHandler()
final int	getHeight() Return the height of your view.
void	getHitRect(Rect outRect) Hit rectangle in parent's coordinates
int	getHorizontalFadingEdgeLength() Returns the size of the horizontal faded edges used to indicate that more content in this view is visible.
int	getHorizontalScrollbarHeight() Returns the height of the horizontal scrollbar.
int	getId() Returns this view's identifier.
int	getImportantForAccessibility() Gets the mode for determining whether this View is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.
boolean	getKeepScreenOn() Returns whether the screen should remain on, corresponding to the current value of `KEEP_SCREEN_ON`.
KeyEvent.DispatcherState	getKeyDispatcherState() Return the global `KeyEvent.DispatcherState` for this view's window.
int	getLabelFor() Gets the id of a view for which this view serves as a label for accessibility purposes.
int	getLayerType() Indicates what type of layer is currently associated with this view.
int	getLayoutDirection() Returns the resolved layout direction for this view.
ViewGroup.LayoutParams	getLayoutParams() Get the LayoutParams associated with this view.
final int	getLeft() Left position of this view relative to its parent.
float	getLeftFadingEdgeStrength() Returns the strength, or intensity, of the left faded edge.
int	getLeftPaddingOffset() Amount by which to extend the left fading region.
final boolean	getLocalVisibleRect(Rect r)
void	getLocationInWindow(int[] location) Computes the coordinates of this view in its window.
void	getLocationOnScreen(int[] location) Computes the coordinates of this view on the screen.
Matrix	getMatrix() The transform matrix of this view, which is calculated based on the current rotation, scale, and pivot properties.
final int	getMeasuredHeight() Like `getMeasuredHeightAndState()`, but only returns the raw width component (that is the result is masked by `MEASURED_SIZE_MASK`).
final int	getMeasuredHeightAndState() Return the full height measurement information for this view as computed by the most recent call to `measure(int, int)`.
final int	getMeasuredState() Return only the state bits of `getMeasuredWidthAndState()` and `getMeasuredHeightAndState()`, combined into one integer.
final int	getMeasuredWidth() Like `getMeasuredWidthAndState()`, but only returns the raw width component (that is the result is masked by `MEASURED_SIZE_MASK`).
final int	getMeasuredWidthAndState() Return the full width measurement information for this view as computed by the most recent call to `measure(int, int)`.
int	getMinimumHeight() Returns the minimum height of the view.
int	getMinimumWidth() Returns the minimum width of the view.
int	getNextFocusDownId() Gets the id of the view to use when the next focus is `FOCUS_DOWN`.
int	getNextFocusForwardId() Gets the id of the view to use when the next focus is `FOCUS_FORWARD`.
int	getNextFocusLeftId() Gets the id of the view to use when the next focus is `FOCUS_LEFT`.
int	getNextFocusRightId() Gets the id of the view to use when the next focus is `FOCUS_RIGHT`.
int	getNextFocusUpId() Gets the id of the view to use when the next focus is `FOCUS_UP`.
View.OnFocusChangeListener	getOnFocusChangeListener() Returns the focus-change callback registered for this view.
ViewOutlineProvider	getOutlineProvider() Returns the current `ViewOutlineProvider` of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.
int	getOverScrollMode() Returns the over-scroll mode for this view.
ViewOverlay	getOverlay() Returns the overlay for this view, creating it if it does not yet exist.
int	getPaddingBottom() Returns the bottom padding of this view.
int	getPaddingEnd() Returns the end padding of this view depending on its resolved layout direction.
int	getPaddingLeft() Returns the left padding of this view.
int	getPaddingRight() Returns the right padding of this view.
int	getPaddingStart() Returns the start padding of this view depending on its resolved layout direction.
int	getPaddingTop() Returns the top padding of this view.
final ViewParent	getParent() Gets the parent of this view.
ViewParent	getParentForAccessibility() Gets the parent for accessibility purposes.
float	getPivotX() The x location of the point around which the view is `rotated` and `scaled`.
float	getPivotY() The y location of the point around which the view is `rotated` and `scaled`.
Resources	getResources() Returns the resources associated with this view.
final int	getRight() Right position of this view relative to its parent.
float	getRightFadingEdgeStrength() Returns the strength, or intensity, of the right faded edge.
int	getRightPaddingOffset() Amount by which to extend the right fading region.
View	getRootView() Finds the topmost view in the current view hierarchy.
WindowInsets	getRootWindowInsets() Provide original WindowInsets that are dispatched to the view hierarchy.
float	getRotation() The degrees that the view is rotated around the pivot point.
float	getRotationX() The degrees that the view is rotated around the horizontal axis through the pivot point.
float	getRotationY() The degrees that the view is rotated around the vertical axis through the pivot point.
float	getScaleX() The amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.
float	getScaleY() The amount that the view is scaled in y around the pivot point, as a proportion of the view's unscaled height.
int	getScrollBarDefaultDelayBeforeFade() Returns the delay before scrollbars fade.
int	getScrollBarFadeDuration() Returns the scrollbar fade duration.
int	getScrollBarSize() Returns the scrollbar size.
int	getScrollBarStyle() Returns the current scrollbar style.
int	getScrollIndicators() Returns a bitmask representing the enabled scroll indicators.
final int	getScrollX() Return the scrolled left position of this view.
final int	getScrollY() Return the scrolled top position of this view.
int	getSolidColor() Override this if your view is known to always be drawn on top of a solid color background, and needs to draw fading edges.
StateListAnimator	getStateListAnimator() Returns the current StateListAnimator if exists.
int	getSuggestedMinimumHeight() Returns the suggested minimum height that the view should use.
int	getSuggestedMinimumWidth() Returns the suggested minimum width that the view should use.
int	getSystemUiVisibility() Returns the last `setSystemUiVisibility(int)` that this view has requested.
Object	getTag(int key) Returns the tag associated with this view and the specified key.
Object	getTag() Returns this view's tag.
int	getTextAlignment() Return the resolved text alignment.
int	getTextDirection() Return the resolved text direction.
final int	getTop() Top position of this view relative to its parent.
float	getTopFadingEdgeStrength() Returns the strength, or intensity, of the top faded edge.
int	getTopPaddingOffset() Amount by which to extend the top fading region.
TouchDelegate	getTouchDelegate() Gets the TouchDelegate for this View.
ArrayList<View>	getTouchables() Find and return all touchable views that are descendants of this view, possibly including this view if it is touchable itself.
String	getTransitionName() Returns the name of the View to be used to identify Views in Transitions.
float	getTranslationX() The horizontal location of this view relative to its `left` position.
float	getTranslationY() The vertical location of this view relative to its `top` position.
float	getTranslationZ() The depth location of this view relative to its `elevation`.
int	getVerticalFadingEdgeLength() Returns the size of the vertical faded edges used to indicate that more content in this view is visible.
int	getVerticalScrollbarPosition()
int	getVerticalScrollbarWidth() Returns the width of the vertical scrollbar.
ViewTreeObserver	getViewTreeObserver() Returns the ViewTreeObserver for this view's hierarchy.
int	getVisibility() Returns the visibility status for this view.
final int	getWidth() Return the width of the your view.
int	getWindowAttachCount()
WindowId	getWindowId() Retrieve the `WindowId` for the window this view is currently attached to.
int	getWindowSystemUiVisibility() Returns the current system UI visibility that is currently set for the entire window.
IBinder	getWindowToken() Retrieve a unique token identifying the window this view is attached to.
int	getWindowVisibility() Returns the current visibility of the window this view is attached to (either `GONE`, `INVISIBLE`, or `VISIBLE`).
void	getWindowVisibleDisplayFrame(Rect outRect) Retrieve the overall visible display size in which the window this view is attached to has been positioned in.
float	getX() The visual x position of this view, in pixels.
float	getY() The visual y position of this view, in pixels.
float	getZ() The visual z position of this view, in pixels.
boolean	hasFocus() Returns true if this view has focus itself, or is the ancestor of the view that has focus.
boolean	hasFocusable() Returns true if this view is focusable or if it contains a reachable View for which `hasFocusable()` returns true.
boolean	hasNestedScrollingParent() Returns true if this view has a nested scrolling parent.
boolean	hasOnClickListeners() Return whether this view has an attached OnClickListener.
boolean	hasOverlappingRendering() Returns whether this View has content which overlaps.
boolean	hasTransientState() Indicates whether the view is currently tracking transient state that the app should not need to concern itself with saving and restoring, but that the framework should take special note to preserve when possible.
boolean	hasWindowFocus() Returns true if this view is in a window that currently has window focus.
static View	inflate(Context context, int resource, ViewGroup root) Inflate a view from an XML resource.
void	invalidate(Rect dirty) Mark the area defined by dirty as needing to be drawn.
void	invalidate(int l, int t, int r, int b) Mark the area defined by the rect (l,t,r,b) as needing to be drawn.
void	invalidate() Invalidate the whole view.
void	invalidateDrawable(Drawable drawable) Invalidates the specified Drawable.
void	invalidateOutline() Called to rebuild this View's Outline from its `outline provider`
boolean	isAccessibilityFocused() Returns whether this View is accessibility focused.
boolean	isActivated() Indicates the activation state of this view.
boolean	isAttachedToWindow() Returns true if this view is currently attached to a window.
boolean	isClickable() Indicates whether this view reacts to click events or not.
boolean	isContextClickable() Indicates whether this view reacts to context clicks or not.
boolean	isDirty() True if this view has changed since the last time being drawn.
boolean	isDrawingCacheEnabled() Indicates whether the drawing cache is enabled for this view.
boolean	isDuplicateParentStateEnabled() Indicates whether this duplicates its drawable state from its parent.
boolean	isEnabled() Returns the enabled status for this view.
final boolean	isFocusable() Returns whether this View is able to take focus.
final boolean	isFocusableInTouchMode() When a view is focusable, it may not want to take focus when in touch mode.
boolean	isFocused() Returns true if this view has focus
boolean	isHapticFeedbackEnabled()
boolean	isHardwareAccelerated() Indicates whether this view is attached to a hardware accelerated window or not.
boolean	isHorizontalFadingEdgeEnabled() Indicate whether the horizontal edges are faded when the view is scrolled horizontally.
boolean	isHorizontalScrollBarEnabled() Indicate whether the horizontal scrollbar should be drawn or not.
boolean	isHovered() Returns true if the view is currently hovered.
boolean	isImportantForAccessibility() Computes whether this view should be exposed for accessibility.
boolean	isInEditMode() Indicates whether this View is currently in edit mode.
boolean	isInLayout() Returns whether the view hierarchy is currently undergoing a layout pass.
boolean	isInTouchMode() Returns whether the device is currently in touch mode.
boolean	isLaidOut() Returns true if this view has been through at least one layout since it was last attached to or detached from a window.
boolean	isLayoutDirectionResolved()
boolean	isLayoutRequested() Indicates whether or not this view's layout will be requested during the next hierarchy layout pass.
boolean	isLongClickable() Indicates whether this view reacts to long click events or not.
boolean	isNestedScrollingEnabled() Returns true if nested scrolling is enabled for this view.
boolean	isOpaque() Indicates whether this View is opaque.
boolean	isPaddingOffsetRequired() If the View draws content inside its padding and enables fading edges, it needs to support padding offsets.
boolean	isPaddingRelative() Return if the padding has been set through relative values `setPaddingRelative(int, int, int, int)` or through
boolean	isPressed() Indicates whether the view is currently in pressed state.
boolean	isSaveEnabled() Indicates whether this view will save its state (that is, whether its `onSaveInstanceState()` method will be called).
boolean	isSaveFromParentEnabled() Indicates whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.
boolean	isScrollContainer() Indicates whether this view is one of the set of scrollable containers in its window.
boolean	isScrollbarFadingEnabled() Returns true if scrollbars will fade when this view is not scrolling
boolean	isSelected() Indicates the selection state of this view.
boolean	isShown() Returns the visibility of this view and all of its ancestors
boolean	isSoundEffectsEnabled()
boolean	isTextAlignmentResolved()
boolean	isTextDirectionResolved()
boolean	isVerticalFadingEdgeEnabled() Indicate whether the vertical edges are faded when the view is scrolled horizontally.
boolean	isVerticalScrollBarEnabled() Indicate whether the vertical scrollbar should be drawn or not.
void	jumpDrawablesToCurrentState() Call `Drawable.jumpToCurrentState()` on all Drawable objects associated with this view.
void	layout(int l, int t, int r, int b) Assign a size and position to a view and all of its descendants This is the second phase of the layout mechanism.
final void	measure(int widthMeasureSpec, int heightMeasureSpec) This is called to find out how big a view should be.
static int[]	mergeDrawableStates(int[] baseState, int[] additionalState) Merge your own state values in `additionalState` into the base state values `baseState` that were returned by `onCreateDrawableState(int)`.
void	offsetLeftAndRight(int offset) Offset this view's horizontal location by the specified amount of pixels.
void	offsetTopAndBottom(int offset) Offset this view's vertical location by the specified number of pixels.
void	onAnimationEnd() Invoked by a parent ViewGroup to notify the end of the animation currently associated with this view.
void	onAnimationStart() Invoked by a parent ViewGroup to notify the start of the animation currently associated with this view.
WindowInsets	onApplyWindowInsets(WindowInsets insets) Called when the view should apply `WindowInsets` according to its internal policy.
void	onAttachedToWindow() This is called when the view is attached to a window.
void	onCancelPendingInputEvents() Called as the result of a call to `cancelPendingInputEvents()` on this view or a parent view.
boolean	onCheckIsTextEditor() Check whether the called view is a text editor, in which case it would make sense to automatically display a soft input window for it.
void	onConfigurationChanged(Configuration newConfig) Called when the current configuration of the resources being used by the application have changed.
void	onCreateContextMenu(ContextMenu menu) Views should implement this if the view itself is going to add items to the context menu.
int[]	onCreateDrawableState(int extraSpace) Generate the new `Drawable` state for this view.
InputConnection	onCreateInputConnection(EditorInfo outAttrs) Create a new InputConnection for an InputMethod to interact with the view.
void	onDetachedFromWindow() This is called when the view is detached from a window.
void	onDisplayHint(int hint) Gives this view a hint about whether is displayed or not.
boolean	onDragEvent(DragEvent event) Handles drag events sent by the system following a call to `startDrag()`.
void	onDraw(Canvas canvas) Implement this to do your drawing.
void	onDrawForeground(Canvas canvas) Draw any foreground content for this view.
final void	onDrawScrollBars(Canvas canvas) Request the drawing of the horizontal and the vertical scrollbar.
boolean	onFilterTouchEventForSecurity(MotionEvent event) Filter the touch event to apply security policies.
void	onFinishInflate() Finalize inflating a view from XML.
void	onFinishTemporaryDetach() Called after `onStartTemporaryDetach()` when the container is done changing the view.
void	onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) Called by the view system when the focus state of this view changes.
boolean	onGenericMotionEvent(MotionEvent event) Implement this method to handle generic motion events.
void	onHoverChanged(boolean hovered) Implement this method to handle hover state changes.
boolean	onHoverEvent(MotionEvent event) Implement this method to handle hover events.
void	onInitializeAccessibilityEvent(AccessibilityEvent event) Initializes an `AccessibilityEvent` with information about this View which is the event source.
void	onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) Initializes an `AccessibilityNodeInfo` with information about this view.
boolean	onKeyDown(int keyCode, KeyEvent event) Default implementation of `KeyEvent.Callback.onKeyDown()`: perform press of the view when `KEYCODE_DPAD_CENTER` or `KEYCODE_ENTER` is released, if the view is enabled and clickable.
boolean	onKeyLongPress(int keyCode, KeyEvent event) Default implementation of `KeyEvent.Callback.onKeyLongPress()`: always returns false (doesn't handle the event).
boolean	onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) Default implementation of `KeyEvent.Callback.onKeyMultiple()`: always returns false (doesn't handle the event).
boolean	onKeyPreIme(int keyCode, KeyEvent event) Handle a key event before it is processed by any input method associated with the view hierarchy.
boolean	onKeyShortcut(int keyCode, KeyEvent event) Called on the focused view when a key shortcut event is not handled.
boolean	onKeyUp(int keyCode, KeyEvent event) Default implementation of `KeyEvent.Callback.onKeyUp()`: perform clicking of the view when `KEYCODE_DPAD_CENTER` or `KEYCODE_ENTER` is released.
void	onLayout(boolean changed, int left, int top, int right, int bottom) Called from layout when this view should assign a size and position to each of its children.
void	onMeasure(int widthMeasureSpec, int heightMeasureSpec) Measure the view and its content to determine the measured width and the measured height.
void	onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) Called by `overScrollBy(int, int, int, int, int, int, int, int, boolean)` to respond to the results of an over-scroll operation.
void	onPopulateAccessibilityEvent(AccessibilityEvent event) Called from `dispatchPopulateAccessibilityEvent(AccessibilityEvent)` giving a chance to this View to populate the accessibility event with its text content.
void	onProvideStructure(ViewStructure structure) Called when assist structure is being retrieved from a view as part of `Activity.onProvideAssistData`.
void	onProvideVirtualStructure(ViewStructure structure) Called when assist structure is being retrieved from a view as part of `Activity.onProvideAssistData` to generate additional virtual structure under this view.
void	onRestoreInstanceState(Parcelable state) Hook allowing a view to re-apply a representation of its internal state that had previously been generated by `onSaveInstanceState()`.
void	onRtlPropertiesChanged(int layoutDirection) Called when any RTL property (layout direction or text direction or text alignment) has been changed.
Parcelable	onSaveInstanceState() Hook allowing a view to generate a representation of its internal state that can later be used to create a new instance with that same state.
void	onScreenStateChanged(int screenState) This method is called whenever the state of the screen this view is attached to changes.
void	onScrollChanged(int l, int t, int oldl, int oldt) This is called in response to an internal scroll in this view (i.e., the view scrolled its own contents).
boolean	onSetAlpha(int alpha) Invoked if there is a Transform that involves alpha.
void	onSizeChanged(int w, int h, int oldw, int oldh) This is called during layout when the size of this view has changed.
void	onStartTemporaryDetach() This is called when a container is going to temporarily detach a child, with `ViewGroup.detachViewFromParent`.
boolean	onTouchEvent(MotionEvent event) Implement this method to handle touch screen motion events.
boolean	onTrackballEvent(MotionEvent event) Implement this method to handle trackball motion events.
void	onVisibilityChanged(View changedView, int visibility) Called when the visibility of the view or an ancestor of the view has changed.
void	onWindowFocusChanged(boolean hasWindowFocus) Called when the window containing this view gains or loses focus.
void	onWindowSystemUiVisibilityChanged(int visible) Override to find out when the window's requested system UI visibility has changed, that is the value returned by `getWindowSystemUiVisibility()`.
void	onWindowVisibilityChanged(int visibility) Called when the window containing has change its visibility (between `GONE`, `INVISIBLE`, and `VISIBLE`).
boolean	overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX, int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) Scroll the view with standard behavior for scrolling beyond the normal content boundaries.
boolean	performAccessibilityAction(int action, Bundle arguments) Performs the specified accessibility action on the view.
boolean	performClick() Call this view's OnClickListener, if it is defined.
boolean	performContextClick() Call this view's OnContextClickListener, if it is defined.
boolean	performHapticFeedback(int feedbackConstant) BZZZTT!!1! Provide haptic feedback to the user for this view.
boolean	performHapticFeedback(int feedbackConstant, int flags) BZZZTT!!1! Like `performHapticFeedback(int)`, with additional options.
boolean	performLongClick() Call this view's OnLongClickListener, if it is defined.
void	playSoundEffect(int soundConstant) Play a sound effect for this view.
boolean	post(Runnable action) Causes the Runnable to be added to the message queue.
boolean	postDelayed(Runnable action, long delayMillis) Causes the Runnable to be added to the message queue, to be run after the specified amount of time elapses.
void	postInvalidate(int left, int top, int right, int bottom) Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.
void	postInvalidate() Cause an invalidate to happen on a subsequent cycle through the event loop.
void	postInvalidateDelayed(long delayMilliseconds, int left, int top, int right, int bottom) Cause an invalidate of the specified area to happen on a subsequent cycle through the event loop.
void	postInvalidateDelayed(long delayMilliseconds) Cause an invalidate to happen on a subsequent cycle through the event loop.
void	postInvalidateOnAnimation(int left, int top, int right, int bottom) Cause an invalidate of the specified area to happen on the next animation time step, typically the next display frame.
void	postInvalidateOnAnimation() Cause an invalidate to happen on the next animation time step, typically the next display frame.
void	postOnAnimation(Runnable action) Causes the Runnable to execute on the next animation time step.
void	postOnAnimationDelayed(Runnable action, long delayMillis) Causes the Runnable to execute on the next animation time step, after the specified amount of time elapses.
void	refreshDrawableState() Call this to force a view to update its drawable state.
boolean	removeCallbacks(Runnable action) Removes the specified Runnable from the message queue.
void	removeOnAttachStateChangeListener(View.OnAttachStateChangeListener listener) Remove a listener for attach state changes.
void	removeOnLayoutChangeListener(View.OnLayoutChangeListener listener) Remove a listener for layout changes.
void	requestApplyInsets() Ask that a new dispatch of `onApplyWindowInsets(WindowInsets)` be performed.
void	requestFitSystemWindows() This method was deprecated in API level 20. Use `requestApplyInsets()` for newer platform versions.
boolean	requestFocus(int direction, Rect previouslyFocusedRect) Call this to try to give focus to a specific view or to one of its descendants and give it hints about the direction and a specific rectangle that the focus is coming from.
final boolean	requestFocus(int direction) Call this to try to give focus to a specific view or to one of its descendants and give it a hint about what direction focus is heading.
final boolean	requestFocus() Call this to try to give focus to a specific view or to one of its descendants.
final boolean	requestFocusFromTouch() Call this to try to give focus to a specific view or to one of its descendants.
void	requestLayout() Call this when something has changed which has invalidated the layout of this view.
boolean	requestRectangleOnScreen(Rect rectangle) Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.
boolean	requestRectangleOnScreen(Rect rectangle, boolean immediate) Request that a rectangle of this view be visible on the screen, scrolling if necessary just enough.
final void	requestUnbufferedDispatch(MotionEvent event) Request unbuffered dispatch of the given stream of MotionEvents to this View.
static int	resolveSize(int size, int measureSpec) Version of `resolveSizeAndState(int, int, int)` returning only the `MEASURED_SIZE_MASK` bits of the result.
static int	resolveSizeAndState(int size, int measureSpec, int childMeasuredState) Utility to reconcile a desired size and state, with constraints imposed by a MeasureSpec.
void	restoreHierarchyState(SparseArray<Parcelable> container) Restore this view hierarchy's frozen state from the given container.
void	saveHierarchyState(SparseArray<Parcelable> container) Store this view hierarchy's frozen state into the given container.
void	scheduleDrawable(Drawable who, Runnable what, long when) Schedules an action on a drawable to occur at a specified time.
void	scrollBy(int x, int y) Move the scrolled position of your view.
void	scrollTo(int x, int y) Set the scrolled position of your view.
void	sendAccessibilityEvent(int eventType) Sends an accessibility event of the given type.
void	sendAccessibilityEventUnchecked(AccessibilityEvent event) This method behaves exactly as `sendAccessibilityEvent(int)` but takes as an argument an empty `AccessibilityEvent` and does not perform a check whether accessibility is enabled.
void	setAccessibilityDelegate(View.AccessibilityDelegate delegate) Sets a delegate for implementing accessibility support via composition as opposed to inheritance.
void	setAccessibilityLiveRegion(int mode) Sets the live region mode for this view.
void	setAccessibilityTraversalAfter(int afterId) Sets the id of a view after which this one is visited in accessibility traversal.
void	setAccessibilityTraversalBefore(int beforeId) Sets the id of a view before which this one is visited in accessibility traversal.
void	setActivated(boolean activated) Changes the activated state of this view.
void	setAlpha(float alpha) Sets the opacity of the view to a value from 0 to 1, where 0 means the view is completely transparent and 1 means the view is completely opaque.
void	setAnimation(Animation animation) Sets the next animation to play for this view.
void	setBackground(Drawable background) Set the background to a given Drawable, or remove the background.
void	setBackgroundColor(int color) Sets the background color for this view.
void	setBackgroundDrawable(Drawable background) This method was deprecated in API level 16. use `setBackground(Drawable)` instead
void	setBackgroundResource(int resid) Set the background to a given resource.
void	setBackgroundTintList(ColorStateList tint) Applies a tint to the background drawable.
void	setBackgroundTintMode(PorterDuff.Mode tintMode) Specifies the blending mode used to apply the tint specified by `setBackgroundTintList(ColorStateList)`} to the background drawable.
final void	setBottom(int bottom) Sets the bottom position of this view relative to its parent.
void	setCameraDistance(float distance) Sets the distance along the Z axis (orthogonal to the X/Y plane on which views are drawn) from the camera to this view.
void	setClickable(boolean clickable) Enables or disables click events for this view.
void	setClipBounds(Rect clipBounds) Sets a rectangular area on this view to which the view will be clipped when it is drawn.
void	setClipToOutline(boolean clipToOutline) Sets whether the View's Outline should be used to clip the contents of the View.
void	setContentDescription(CharSequence contentDescription) Sets the `View` description.
void	setContextClickable(boolean contextClickable) Enables or disables context clicking for this view.
void	setDrawingCacheBackgroundColor(int color) Setting a solid background color for the drawing cache's bitmaps will improve performance and memory usage.
void	setDrawingCacheEnabled(boolean enabled) Enables or disables the drawing cache.
void	setDrawingCacheQuality(int quality) Set the drawing cache quality of this view.
void	setDuplicateParentStateEnabled(boolean enabled) Enables or disables the duplication of the parent's state into this view.
void	setElevation(float elevation) Sets the base elevation of this view, in pixels.
void	setEnabled(boolean enabled) Set the enabled state of this view.
void	setFadingEdgeLength(int length) Set the size of the faded edge used to indicate that more content in this view is available.
void	setFilterTouchesWhenObscured(boolean enabled) Sets whether the framework should discard touches when the view's window is obscured by another visible window.
void	setFitsSystemWindows(boolean fitSystemWindows) Sets whether or not this view should account for system screen decorations such as the status bar and inset its content; that is, controlling whether the default implementation of `fitSystemWindows(Rect)` will be executed.
void	setFocusable(boolean focusable) Set whether this view can receive the focus.
void	setFocusableInTouchMode(boolean focusableInTouchMode) Set whether this view can receive focus while in touch mode.
void	setForeground(Drawable foreground) Supply a Drawable that is to be rendered on top of all of the content in the view.
void	setForegroundGravity(int gravity) Describes how the foreground is positioned.
void	setForegroundTintList(ColorStateList tint) Applies a tint to the foreground drawable.
void	setForegroundTintMode(PorterDuff.Mode tintMode) Specifies the blending mode used to apply the tint specified by `setForegroundTintList(ColorStateList)`} to the background drawable.
void	setHapticFeedbackEnabled(boolean hapticFeedbackEnabled) Set whether this view should have haptic feedback for events such as long presses.
void	setHasTransientState(boolean hasTransientState) Set whether this view is currently tracking transient state that the framework should attempt to preserve when possible.
void	setHorizontalFadingEdgeEnabled(boolean horizontalFadingEdgeEnabled) Define whether the horizontal edges should be faded when this view is scrolled horizontally.
void	setHorizontalScrollBarEnabled(boolean horizontalScrollBarEnabled) Define whether the horizontal scrollbar should be drawn or not.
void	setHovered(boolean hovered) Sets whether the view is currently hovered.
void	setId(int id) Sets the identifier for this view.
void	setImportantForAccessibility(int mode) Sets how to determine whether this view is important for accessibility which is if it fires accessibility events and if it is reported to accessibility services that query the screen.
void	setKeepScreenOn(boolean keepScreenOn) Controls whether the screen should remain on, modifying the value of `KEEP_SCREEN_ON`.
void	setLabelFor(int id) Sets the id of a view for which this view serves as a label for accessibility purposes.
void	setLayerPaint(Paint paint) Updates the `Paint` object used with the current layer (used only if the current layer type is not set to `LAYER_TYPE_NONE`).
void	setLayerType(int layerType, Paint paint) Specifies the type of layer backing this view.
void	setLayoutDirection(int layoutDirection) Set the layout direction for this view.
void	setLayoutParams(ViewGroup.LayoutParams params) Set the layout parameters associated with this view.
final void	setLeft(int left) Sets the left position of this view relative to its parent.
void	setLongClickable(boolean longClickable) Enables or disables long click events for this view.
final void	setMeasuredDimension(int measuredWidth, int measuredHeight) This method must be called by `onMeasure(int, int)` to store the measured width and measured height.
void	setMinimumHeight(int minHeight) Sets the minimum height of the view.
void	setMinimumWidth(int minWidth) Sets the minimum width of the view.
void	setNestedScrollingEnabled(boolean enabled) Enable or disable nested scrolling for this view.
void	setNextFocusDownId(int nextFocusDownId) Sets the id of the view to use when the next focus is `FOCUS_DOWN`.
void	setNextFocusForwardId(int nextFocusForwardId) Sets the id of the view to use when the next focus is `FOCUS_FORWARD`.
void	setNextFocusLeftId(int nextFocusLeftId) Sets the id of the view to use when the next focus is `FOCUS_LEFT`.
void	setNextFocusRightId(int nextFocusRightId) Sets the id of the view to use when the next focus is `FOCUS_RIGHT`.
void	setNextFocusUpId(int nextFocusUpId) Sets the id of the view to use when the next focus is `FOCUS_UP`.
void	setOnApplyWindowInsetsListener(View.OnApplyWindowInsetsListener listener) Set an `View.OnApplyWindowInsetsListener` to take over the policy for applying window insets to this view.
void	setOnClickListener(View.OnClickListener l) Register a callback to be invoked when this view is clicked.
void	setOnContextClickListener(View.OnContextClickListener l) Register a callback to be invoked when this view is context clicked.
void	setOnCreateContextMenuListener(View.OnCreateContextMenuListener l) Register a callback to be invoked when the context menu for this view is being built.
void	setOnDragListener(View.OnDragListener l) Register a drag event listener callback object for this View.
void	setOnFocusChangeListener(View.OnFocusChangeListener l) Register a callback to be invoked when focus of this view changed.
void	setOnGenericMotionListener(View.OnGenericMotionListener l) Register a callback to be invoked when a generic motion event is sent to this view.
void	setOnHoverListener(View.OnHoverListener l) Register a callback to be invoked when a hover event is sent to this view.
void	setOnKeyListener(View.OnKeyListener l) Register a callback to be invoked when a hardware key is pressed in this view.
void	setOnLongClickListener(View.OnLongClickListener l) Register a callback to be invoked when this view is clicked and held.
void	setOnScrollChangeListener(View.OnScrollChangeListener l) Register a callback to be invoked when the scroll X or Y positions of this view change.
void	setOnSystemUiVisibilityChangeListener(View.OnSystemUiVisibilityChangeListener l) Set a listener to receive callbacks when the visibility of the system bar changes.
void	setOnTouchListener(View.OnTouchListener l) Register a callback to be invoked when a touch event is sent to this view.
void	setOutlineProvider(ViewOutlineProvider provider) Sets the `ViewOutlineProvider` of the view, which generates the Outline that defines the shape of the shadow it casts, and enables outline clipping.
void	setOverScrollMode(int overScrollMode) Set the over-scroll mode for this view.
void	setPadding(int left, int top, int right, int bottom) Sets the padding.
void	setPaddingRelative(int start, int top, int end, int bottom) Sets the relative padding.
void	setPivotX(float pivotX) Sets the x location of the point around which the view is `rotated` and `scaled`.
void	setPivotY(float pivotY) Sets the y location of the point around which the view is `rotated` and `scaled`.
void	setPressed(boolean pressed) Sets the pressed state for this view.
final void	setRight(int right) Sets the right position of this view relative to its parent.
void	setRotation(float rotation) Sets the degrees that the view is rotated around the pivot point.
void	setRotationX(float rotationX) Sets the degrees that the view is rotated around the horizontal axis through the pivot point.
void	setRotationY(float rotationY) Sets the degrees that the view is rotated around the vertical axis through the pivot point.
void	setSaveEnabled(boolean enabled) Controls whether the saving of this view's state is enabled (that is, whether its `onSaveInstanceState()` method will be called).
void	setSaveFromParentEnabled(boolean enabled) Controls whether the entire hierarchy under this view will save its state when a state saving traversal occurs from its parent.
void	setScaleX(float scaleX) Sets the amount that the view is scaled in x around the pivot point, as a proportion of the view's unscaled width.
void	setScaleY(float scaleY) Sets the amount that the view is scaled in Y around the pivot point, as a proportion of the view's unscaled width.
void	setScrollBarDefaultDelayBeforeFade(int scrollBarDefaultDelayBeforeFade) Define the delay before scrollbars fade.
void	setScrollBarFadeDuration(int scrollBarFadeDuration) Define the scrollbar fade duration.
void	setScrollBarSize(int scrollBarSize) Define the scrollbar size.
void	setScrollBarStyle(int style) Specify the style of the scrollbars.
void	setScrollContainer(boolean isScrollContainer) Change whether this view is one of the set of scrollable containers in its window.
void	setScrollIndicators(int indicators, int mask) Sets the state of the scroll indicators specified by the mask.
void	setScrollIndicators(int indicators) Sets the state of all scroll indicators.
void	setScrollX(int value) Set the horizontal scrolled position of your view.
void	setScrollY(int value) Set the vertical scrolled position of your view.
void	setScrollbarFadingEnabled(boolean fadeScrollbars) Define whether scrollbars will fade when the view is not scrolling.
void	setSelected(boolean selected) Changes the selection state of this view.
void	setSoundEffectsEnabled(boolean soundEffectsEnabled) Set whether this view should have sound effects enabled for events such as clicking and touching.
void	setStateListAnimator(StateListAnimator stateListAnimator) Attaches the provided StateListAnimator to this View.
void	setSystemUiVisibility(int visibility) Request that the visibility of the status bar or other screen/window decorations be changed.
void	setTag(int key, Object tag) Sets a tag associated with this view and a key.
void	setTag(Object tag) Sets the tag associated with this view.
void	setTextAlignment(int textAlignment) Set the text alignment.
void	setTextDirection(int textDirection) Set the text direction.
final void	setTop(int top) Sets the top position of this view relative to its parent.
void	setTouchDelegate(TouchDelegate delegate) Sets the TouchDelegate for this View.
final void	setTransitionName(String transitionName) Sets the name of the View to be used to identify Views in Transitions.
void	setTranslationX(float translationX) Sets the horizontal location of this view relative to its `left` position.
void	setTranslationY(float translationY) Sets the vertical location of this view relative to its `top` position.
void	setTranslationZ(float translationZ) Sets the depth location of this view relative to its `elevation`.
void	setVerticalFadingEdgeEnabled(boolean verticalFadingEdgeEnabled) Define whether the vertical edges should be faded when this view is scrolled vertically.
void	setVerticalScrollBarEnabled(boolean verticalScrollBarEnabled) Define whether the vertical scrollbar should be drawn or not.
void	setVerticalScrollbarPosition(int position) Set the position of the vertical scroll bar.
void	setVisibility(int visibility) Set the enabled state of this view.
void	setWillNotCacheDrawing(boolean willNotCacheDrawing) When a View's drawing cache is enabled, drawing is redirected to an offscreen bitmap.
void	setWillNotDraw(boolean willNotDraw) If this view doesn't do any drawing on its own, set this flag to allow further optimizations.
void	setX(float x) Sets the visual x position of this view, in pixels.
void	setY(float y) Sets the visual y position of this view, in pixels.
void	setZ(float z) Sets the visual z position of this view, in pixels.
boolean	showContextMenu() Bring up the context menu for this view.
ActionMode	startActionMode(ActionMode.Callback callback, int type) Start an action mode with the given type.
ActionMode	startActionMode(ActionMode.Callback callback) Start an action mode with the default type `TYPE_PRIMARY`.
void	startAnimation(Animation animation) Start the specified animation now.
final boolean	startDrag(ClipData data, View.DragShadowBuilder shadowBuilder, Object myLocalState, int flags) Starts a drag and drop operation.
boolean	startNestedScroll(int axes) Begin a nestable scroll operation along the given axes.
void	stopNestedScroll() Stop a nested scroll in progress.
String	toString() Returns a string containing a concise, human-readable description of this object.
void	unscheduleDrawable(Drawable who) Unschedule any events associated with the given Drawable.
void	unscheduleDrawable(Drawable who, Runnable what) Cancels a scheduled action on a drawable.
boolean	verifyDrawable(Drawable who) If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying.
boolean	willNotCacheDrawing() Returns whether or not this View can cache its drawing or not.
boolean	willNotDraw() Returns whether or not this View draws on its own.

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

From interface android.graphics.drawable.Drawable.Callback

From interface android.view.KeyEvent.Callback

From interface android.view.accessibility.AccessibilityEventSource

XML Attributes

android:adjustViewBounds

Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol adjustViewBounds.

Related Methods

setAdjustViewBounds(boolean)

android:baseline

The offset of the baseline within this view. See {see android.view.View#getBaseline} for details

Must be a dimension value, which is a floating point number appended with a unit such as "14.5sp". Available units are: px (pixels), dp (density-independent pixels), sp (scaled pixels based on preferred font size), in (inches), mm (millimeters).

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol baseline.

Related Methods

setBaseline(int)

android:baselineAlignBottom

If true, the image view will be baseline aligned with based on its bottom edge.

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol baselineAlignBottom.

Related Methods

setBaselineAlignBottom(boolean)

android:cropToPadding

If true, the image will be cropped to fit within its padding.

Must be a boolean value, either "true" or "false".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol cropToPadding.

Related Methods

setCropToPadding(boolean)

android:maxHeight

An optional argument to supply a maximum height for this view. See {see android.widget.ImageView#setMaxHeight} for details.

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol maxHeight.

Related Methods

setMaxHeight(int)

android:maxWidth

An optional argument to supply a maximum width for this view. See {see android.widget.ImageView#setMaxWidth} for details.

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol maxWidth.

Related Methods

setMaxWidth(int)

android:scaleType

Controls how the image should be resized or moved to match the size of this ImageView. See ImageView.ScaleType

Must be one of the following constant values.

Constant	Value	Description
`matrix`	0	Scale using the image matrix when drawing. See `setImageMatrix(Matrix)`.
`fitXY`	1	Scale the image using `FILL`.
`fitStart`	2	Scale the image using `START`.
`fitCenter`	3	Scale the image using `CENTER`.
`fitEnd`	4	Scale the image using `END`.
`center`	5	Center the image in the view, but perform no scaling.
`centerCrop`	6	Scale the image uniformly (maintain the image's aspect ratio) so both dimensions (width and height) of the image will be equal to or larger than the corresponding dimension of the view (minus padding). The image is then centered in the view.
`centerInside`	7	Scale the image uniformly (maintain the image's aspect ratio) so that both dimensions (width and height) of the image will be equal to or less than the corresponding dimension of the view (minus padding). The image is then centered in the view.

This corresponds to the global attribute resource symbol scaleType.

Related Methods

setScaleType(ImageView.ScaleType)

android:src

Sets a drawable as the content of this ImageView.

May be a reference to another resource, in the form "@[+][package:]type:name" or to a theme attribute in the form "?[package:][type:]name".

May be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

This corresponds to the global attribute resource symbol src.

Related Methods

setImageResource(int)

android:tint

Set a tinting color for the image. By default, the tint will blend using SRC_ATOP mode.

Must be a color value, in the form of "#rgb", "#argb", "#rrggbb", or "#aarrggbb".

This may also be a reference to a resource (in the form "@[package:]type:name") or theme attribute (in the form "?[package:][type:]name") containing a value of this type.

This corresponds to the global attribute resource symbol tint.

Related Methods

setImageTintList(ColorStateList)

android:tintMode

Blending mode used to apply the image tint.

Must be one of the following constant values.

Constant	Value	Description
`src_over`	3	The tint is drawn on top of the drawable. [Sa + (1 - Sa)Da, Rc = Sc + (1 - Sa)Dc]
`src_in`	5	The tint is masked by the alpha channel of the drawable. The drawable’s color channels are thrown out. [Sa * Da, Sc * Da]
`src_atop`	9	The tint is drawn above the drawable, but with the drawable’s alpha channel masking the result. [Da, Sc * Da + (1 - Sa) * Dc]
`multiply`	14	Multiplies the color and alpha channels of the drawable with those of the tint. [Sa * Da, Sc * Dc]
`screen`	15	[Sa + Da - Sa * Da, Sc + Dc - Sc * Dc]
`add`	16	Combines the tint and drawable color and alpha channels, clamping the result to valid color values. Saturate(S + D)

This corresponds to the global attribute resource symbol tintMode.

Related Methods

setImageTintMode(PorterDuff.Mode)

Public Constructors

public ImageView (Context context)

Added in API level 1

Parameters
`context`	`Context`

public ImageView (Context context, AttributeSet attrs)

Added in API level 1

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

public ImageView (Context context, AttributeSet attrs, int defStyleAttr)

Added in API level 1

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`

public ImageView (Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Added in API level 21

Parameters
`context`	`Context`
`attrs`	`AttributeSet`
`defStyleAttr`	`int`
`defStyleRes`	`int`

Public Methods

public final void clearColorFilter ()

Added in API level 1

public void drawableHotspotChanged (float x, float y)

Added in API level 21

This function is called whenever the view hotspot changes and needs to be propagated to drawables or child views managed by the view.

Dispatching to child views is handled by dispatchDrawableHotspotChanged(float, float).

Be sure to call through to the superclass when overriding this function.

Parameters
`x`	`float`: hotspot x coordinate
`y`	`float`: hotspot y coordinate

public CharSequence getAccessibilityClassName ()

Added in API level 23

Return the class name of this object to be used for accessibility purposes. Subclasses should only override this if they are implementing something that should be seen as a completely new class of view when used by accessibility, unrelated to the class it is deriving from. This is used to fill in AccessibilityNodeInfo.setClassName.

Returns
`CharSequence`

public boolean getAdjustViewBounds ()

Added in API level 16

True when ImageView is adjusting its bounds to preserve the aspect ratio of its drawable

Related XML Attributes:

android:adjustViewBounds

Returns
`boolean`	whether to adjust the bounds of this view to presrve the original aspect ratio of the drawable

See also:

setAdjustViewBounds(boolean)

public int getBaseline ()

Added in API level 1

Return the offset of the widget's text baseline from the widget's top boundary.

Returns
`int`	the offset of the baseline within the widget's bounds or -1 if baseline alignment is not supported.

public boolean getBaselineAlignBottom ()

Added in API level 11

Return whether this view's baseline will be considered the bottom of the view.

Returns
`boolean`

See also:

setBaselineAlignBottom(boolean)

public ColorFilter getColorFilter ()

Added in API level 16

Returns the active color filter for this ImageView.

Returns
`ColorFilter`	the active color filter for this ImageView

See also:

setColorFilter(android.graphics.ColorFilter)

public boolean getCropToPadding ()

Added in API level 16

Return whether this ImageView crops to padding.

Related XML Attributes:

android:cropToPadding

Returns
`boolean`	whether this ImageView crops to padding

See also:

setCropToPadding(boolean)

public Drawable getDrawable ()

Added in API level 1

Return the view's drawable, or null if no drawable has been assigned.

Returns
`Drawable`

public int getImageAlpha ()

Added in API level 16

Returns the alpha that will be applied to the drawable of this ImageView.

Returns
`int`	the alpha that will be applied to the drawable of this ImageView

See also:

setImageAlpha(int)

public Matrix getImageMatrix ()

Added in API level 1

Return the view's optional matrix. This is applied to the view's drawable when it is drawn. If there is no matrix, this method will return an identity matrix. Do not change this matrix in place but make a copy. If you want a different matrix applied to the drawable, be sure to call setImageMatrix().

Returns
`Matrix`

public ColorStateList getImageTintList ()

Added in API level 21

Related XML Attributes:

android:tint

Returns
`ColorStateList`	the tint applied to the image drawable

See also:

setImageTintList(ColorStateList)

public PorterDuff.Mode getImageTintMode ()

Added in API level 21

Related XML Attributes:

android:tintMode

Returns
`PorterDuff.Mode`	the blending mode used to apply the tint to the image drawable

See also:

setImageTintMode(PorterDuff.Mode)

public int getMaxHeight ()

Added in API level 16

The maximum height of this view.

Related XML Attributes:

android:maxHeight

Returns
`int`	The maximum height of this view

See also:

setMaxHeight(int)

public int getMaxWidth ()

Added in API level 16

The maximum width of this view.

Related XML Attributes:

android:maxWidth

Returns
`int`	The maximum width of this view

See also:

setMaxWidth(int)

public ImageView.ScaleType getScaleType ()

Added in API level 1

Return the current scale type in use by this ImageView.

Related XML Attributes:

android:scaleType

Returns
`ImageView.ScaleType`

See also:

ImageView.ScaleType

public boolean hasOverlappingRendering ()

Added in API level 16

Returns whether this View has content which overlaps.

This function, intended to be overridden by specific View types, is an optimization when alpha is set on a view. If rendering overlaps in a view with alpha < 1, that view is drawn to an offscreen buffer and then composited into place, which can be expensive. If the view has no overlapping rendering, the view can draw each primitive with the appropriate alpha value directly. An example of overlapping rendering is a TextView with a background image, such as a Button. An example of non-overlapping rendering is a TextView with no background, or an ImageView with only the foreground image. The default implementation returns true; subclasses should override if they have cases which can be optimized.

The current implementation of the saveLayer and saveLayerAlpha methods in Canvas necessitates that a View return true if it uses the methods internally without passing the CLIP_TO_LAYER_SAVE_FLAG.

Returns
`boolean`	true if the content in this view might overlap, false otherwise.

public void invalidateDrawable (Drawable dr)

Added in API level 1

Invalidates the specified Drawable.

Parameters
`dr`	`Drawable`: the drawable to invalidate

public boolean isOpaque ()

Added in API level 7

Indicates whether this View is opaque. An opaque View guarantees that it will draw all the pixels overlapping its bounds using a fully opaque color. Subclasses of View should override this method whenever possible to indicate whether an instance is opaque. Opaque Views are treated in a special way by the View hierarchy, possibly allowing it to perform optimizations during invalidate/draw passes.

Returns
`boolean`	True if this View is guaranteed to be fully opaque, false otherwise.

public void jumpDrawablesToCurrentState ()

Added in API level 11

Call Drawable.jumpToCurrentState() on all Drawable objects associated with this view.

Also calls jumpToCurrentState() if there is a StateListAnimator attached to this view.

public int[] onCreateDrawableState (int extraSpace)

Added in API level 1

Generate the new Drawable state for this view. This is called by the view system when the cached Drawable state is determined to be invalid. To retrieve the current state, you should use getDrawableState().

Parameters
`extraSpace`	`int`: if non-zero, this is the number of extra entries you would like in the returned array in which you can place your own states.

Returns
`int[]`	Returns an array holding the current `Drawable` state of the view.

public void onRtlPropertiesChanged (int layoutDirection)

Added in API level 17

Called when any RTL property (layout direction or text direction or text alignment) has been changed. Subclasses need to override this method to take care of cached information that depends on the resolved layout direction, or to inform child views that inherit their layout direction. The default implementation does nothing.

Parameters
`layoutDirection`	`int`: the direction of the layout

public void setAdjustViewBounds (boolean adjustViewBounds)

Added in API level 1

Set this to true if you want the ImageView to adjust its bounds to preserve the aspect ratio of its drawable.

Note: If the application targets API level 17 or lower, adjustViewBounds will allow the drawable to shrink the view bounds, but not grow to fill available measured space in all cases. This is for compatibility with legacy MeasureSpec and RelativeLayout behavior.

Related XML Attributes:

android:adjustViewBounds

Parameters
`adjustViewBounds`	`boolean`: Whether to adjust the bounds of this view to preserve the original aspect ratio of the drawable.

See also:

getAdjustViewBounds()

public void setAlpha (int alpha)

Added in API level 1

This method was deprecated in API level 16.
use #setImageAlpha(int) instead

Sets the alpha value that should be applied to the image.

Parameters
`alpha`	`int`: the alpha value that should be applied to the image

public void setBaseline (int baseline)

Added in API level 11

Set the offset of the widget's text baseline from the widget's top boundary. This value is overridden by the setBaselineAlignBottom(boolean) property.

Related XML Attributes:

android:baseline

Parameters
`baseline`	`int`: The baseline to use, or -1 if none is to be provided.

See also:

setBaseline(int)

public void setBaselineAlignBottom (boolean aligned)

Added in API level 11

Set whether to set the baseline of this view to the bottom of the view. Setting this value overrides any calls to setBaseline.

Related XML Attributes:

android:baselineAlignBottom

Parameters
`aligned`	`boolean`: If true, the image view will be baseline aligned with based on its bottom edge.

public void setColorFilter (ColorFilter cf)

Added in API level 1

Apply an arbitrary colorfilter to the image.

Parameters
`cf`	`ColorFilter`: the colorfilter to apply (may be null)

See also:

getColorFilter()

public final void setColorFilter (int color)

Added in API level 8

Set a tinting option for the image. Assumes SRC_ATOP blending mode.

Related XML Attributes:

android:tint

Parameters
`color`	`int`: Color tint to apply.

public final void setColorFilter (int color, PorterDuff.Mode mode)

Added in API level 1

Set a tinting option for the image.

Related XML Attributes:

android:tint

Parameters
`color`	`int`: Color tint to apply.
`mode`	`PorterDuff.Mode`: How to apply the color. The standard mode is `SRC_ATOP`

public void setCropToPadding (boolean cropToPadding)

Added in API level 16

Sets whether this ImageView will crop to padding.

Related XML Attributes:

android:cropToPadding

Parameters
`cropToPadding`	`boolean`: whether this ImageView will crop to padding

See also:

getCropToPadding()

public void setImageAlpha (int alpha)

Added in API level 16

Sets the alpha value that should be applied to the image.

Parameters
`alpha`	`int`: the alpha value that should be applied to the image

See also:

getImageAlpha()

public void setImageBitmap (Bitmap bm)

Added in API level 1

Sets a Bitmap as the content of this ImageView.

Parameters
`bm`	`Bitmap`: The bitmap to set

public void setImageDrawable (Drawable drawable)

Added in API level 1

Sets a drawable as the content of this ImageView.

Parameters
`drawable`	`Drawable`: the Drawable to set, or `null` to clear the content

public void setImageIcon (Icon icon)

Added in API level 23

Sets the content of this ImageView to the specified Icon.

Depending on the Icon type, this may do Bitmap reading and decoding on the UI thread, which can cause UI jank. If that's a concern, consider using loadDrawableAsync(Context, Icon.OnDrawableLoadedListener, Handler) and then setImageDrawable(android.graphics.drawable.Drawable) instead.

Parameters
`icon`	`Icon`: an Icon holding the desired image, or `null` to clear the content

public void setImageLevel (int level)

Added in API level 1

Sets the image level, when it is constructed from a LevelListDrawable.

Parameters
`level`	`int`: The new level for the image.

public void setImageMatrix (Matrix matrix)

Added in API level 1

Adds a transformation Matrix that is applied to the view's drawable when it is drawn. Allows custom scaling, translation, and perspective distortion.

Parameters
`matrix`	`Matrix`: the transformation parameters in matrix form

public void setImageResource (int resId)

Added in API level 1

Sets a drawable as the content of this ImageView.

This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(android.graphics.drawable.Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.

Related XML Attributes:

android:src

Parameters
`resId`	`int`: the resource identifier of the drawable

public void setImageState (int[] state, boolean merge)

Added in API level 1

Parameters
`state`	`int`
`merge`	`boolean`

public void setImageTintList (ColorStateList tint)

Added in API level 21

Applies a tint to the image drawable. Does not modify the current tint mode, which is SRC_IN by default.

Subsequent calls to setImageDrawable(Drawable) will automatically mutate the drawable and apply the specified tint and tint mode using setTintList(ColorStateList).

Related XML Attributes:

android:tint

Parameters
`tint`	`ColorStateList`: the tint to apply, may be `null` to clear tint

See also:

public void setImageTintMode (PorterDuff.Mode tintMode)

Added in API level 21

Specifies the blending mode used to apply the tint specified by setImageTintList(ColorStateList)} to the image drawable. The default mode is SRC_IN.

Related XML Attributes:

android:tintMode

Parameters
`tintMode`	`PorterDuff.Mode`: the blending mode used to apply the tint, may be `null` to clear tint

See also:

public void setImageURI (Uri uri)

Added in API level 1

Sets the content of this ImageView to the specified Uri.

This does Bitmap reading and decoding on the UI thread, which can cause a latency hiccup. If that's a concern, consider using setImageDrawable(Drawable) or setImageBitmap(android.graphics.Bitmap) and BitmapFactory instead.

Parameters
`uri`	`Uri`: the Uri of an image, or `null` to clear the content

public void setMaxHeight (int maxHeight)

Added in API level 1

An optional argument to supply a maximum height for this view. Only valid if setAdjustViewBounds(boolean) has been set to true. To set an image to be a maximum of 100 x 100 while preserving the original aspect ratio, do the following: 1) set adjustViewBounds to true 2) set maxWidth and maxHeight to 100 3) set the height and width layout params to WRAP_CONTENT.

Note that this view could be still smaller than 100 x 100 using this approach if the original image is small. To set an image to a fixed size, specify that size in the layout params and then use setScaleType(android.widget.ImageView.ScaleType) to determine how to fit the image within the bounds.

Related XML Attributes:

android:maxHeight

Parameters
`maxHeight`	`int`: maximum height for this view

See also:

getMaxHeight()

public void setMaxWidth (int maxWidth)

Added in API level 1

An optional argument to supply a maximum width for this view. Only valid if setAdjustViewBounds(boolean) has been set to true. To set an image to be a maximum of 100 x 100 while preserving the original aspect ratio, do the following: 1) set adjustViewBounds to true 2) set maxWidth and maxHeight to 100 3) set the height and width layout params to WRAP_CONTENT.

Related XML Attributes:

android:maxWidth

Parameters
`maxWidth`	`int`: maximum width for this view

See also:

getMaxWidth()

public void setScaleType (ImageView.ScaleType scaleType)

Added in API level 1

Controls how the image should be resized or moved to match the size of this ImageView.

Related XML Attributes:

android:scaleType

Parameters
`scaleType`	`ImageView.ScaleType`: The desired scaling mode.

public void setSelected (boolean selected)

Added in API level 1

Changes the selection state of this view. A view can be selected or not. Note that selection is not the same as focus. Views are typically selected in the context of an AdapterView like ListView or GridView; the selected view is the view that is highlighted.

Parameters
`selected`	`boolean`: true if the view must be selected, false otherwise

public void setVisibility (int visibility)

Added in API level 1

Set the enabled state of this view.

Parameters
`visibility`	`int`: One of `VISIBLE`, `INVISIBLE`, or `GONE`.

Protected Methods

protected void drawableStateChanged ()

Added in API level 1

This function is called whenever the state of the view changes in such a way that it impacts the state of drawables being shown.

If the View has a StateListAnimator, it will also be called to run necessary state change animations.

Be sure to call through to the superclass when overriding this function.

protected void onAttachedToWindow ()

Added in API level 1

This is called when the view is attached to a window. At this point it has a Surface and will start drawing. Note that this function is guaranteed to be called before onDraw(android.graphics.Canvas), however it may be called any time before the first onDraw -- including before or after onMeasure(int, int).

protected void onDetachedFromWindow ()

Added in API level 1

This is called when the view is detached from a window. At this point it no longer has a surface for drawing.

protected void onDraw (Canvas canvas)

Added in API level 1

Implement this to do your drawing.

Parameters
`canvas`	`Canvas`: the canvas on which the background will be drawn

protected void onMeasure (int widthMeasureSpec, int heightMeasureSpec)

Added in API level 1

Measure the view and its content to determine the measured width and the measured height. This method is invoked by measure(int, int) and should be overridden by subclasses to provide accurate and efficient measurement of their contents.

CONTRACT: When overriding this method, you must call setMeasuredDimension(int, int) to store the measured width and height of this view. Failure to do so will trigger an IllegalStateException, thrown by measure(int, int). Calling the superclass' onMeasure(int, int) is a valid use.

The base class implementation of measure defaults to the background size, unless a larger size is allowed by the MeasureSpec. Subclasses should override onMeasure(int, int) to provide better measurements of their content.

If this method is overridden, it is the subclass's responsibility to make sure the measured height and width are at least the view's minimum height and width (getSuggestedMinimumHeight() and getSuggestedMinimumWidth()).

Parameters
`widthMeasureSpec`	`int`: horizontal space requirements as imposed by the parent. The requirements are encoded with `View.MeasureSpec`.
`heightMeasureSpec`	`int`: vertical space requirements as imposed by the parent. The requirements are encoded with `View.MeasureSpec`.

protected boolean setFrame (int l, int t, int r, int b)

Added in API level 1

Assign a size and position to this view. This is called from layout.

Parameters
`l`	`int`: Left position, relative to parent
`t`	`int`: Top position, relative to parent
`r`	`int`: Right position, relative to parent
`b`	`int`: Bottom position, relative to parent

Returns
`boolean`	true if the new size and position are different than the previous ones

protected boolean verifyDrawable (Drawable dr)

Added in API level 1

If your view subclass is displaying its own Drawable objects, it should override this function and return true for any Drawable it is displaying. This allows animations for those drawables to be scheduled.

Be sure to call through to the super class when overriding this function.

Parameters
`dr`	`Drawable`: The Drawable to verify. Return true if it is one you are displaying, else return the result of calling through to the super class.

Returns
`boolean`	boolean If true than the Drawable is being displayed in the view; else false and it is not allowed to animate.

Results

Annotations

Interfaces

Classes

Enums

Exceptions

ImageView

Class Overview

Summary

XML Attributes

android:adjustViewBounds

Related Methods

android:baseline

Related Methods

android:baselineAlignBottom

Related Methods

android:cropToPadding

Related Methods

android:maxHeight

Related Methods

android:maxWidth

Related Methods

android:scaleType

Related Methods

android:src

Related Methods

android:tint

Related Methods

android:tintMode

Related Methods

Public Constructors

public ImageView (Context context)

public ImageView (Context context, AttributeSet attrs)

public ImageView (Context context, AttributeSet attrs, int defStyleAttr)

public ImageView (Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)

Public Methods

public final void clearColorFilter ()

public void drawableHotspotChanged (float x, float y)

public CharSequence getAccessibilityClassName ()

public boolean getAdjustViewBounds ()

public int getBaseline ()

public boolean getBaselineAlignBottom ()

public ColorFilter getColorFilter ()

public boolean getCropToPadding ()

public Drawable getDrawable ()

public int getImageAlpha ()

public Matrix getImageMatrix ()

public ColorStateList getImageTintList ()

public PorterDuff.Mode getImageTintMode ()

public int getMaxHeight ()

public int getMaxWidth ()

public ImageView.ScaleType getScaleType ()

public boolean hasOverlappingRendering ()

public void invalidateDrawable (Drawable dr)

public boolean isOpaque ()

public void jumpDrawablesToCurrentState ()

public int[] onCreateDrawableState (int extraSpace)

public void onRtlPropertiesChanged (int layoutDirection)

public void setAdjustViewBounds (boolean adjustViewBounds)

public void setAlpha (int alpha)

public void setBaseline (int baseline)

public void setBaselineAlignBottom (boolean aligned)

public void setColorFilter (ColorFilter cf)

public final void setColorFilter (int color)

public final void setColorFilter (int color, PorterDuff.Mode mode)

public void setCropToPadding (boolean cropToPadding)

public void setImageAlpha (int alpha)

public void setImageBitmap (Bitmap bm)

public void setImageDrawable (Drawable drawable)

public void setImageIcon (Icon icon)

public void setImageLevel (int level)

public void setImageMatrix (Matrix matrix)

public void setImageResource (int resId)

public void setImageState (int[] state, boolean merge)

public void setImageTintList (ColorStateList tint)

public void setImageTintMode (PorterDuff.Mode tintMode)

public void setImageURI (Uri uri)

public void setMaxHeight (int maxHeight)

public void setMaxWidth (int maxWidth)

public void setScaleType (ImageView.ScaleType scaleType)