StringStyleBuilder
Easy to use SpannableStringBuilder for Android. Simply insert StringStyleBuilder.java file to anywhere in your project and use it like this:
StringStyleBuilder stringStyleBuilder = new StringStyleBuilder()
.addRegular("Regular text with some ")
.addBold("BOLD TEXT ")
.addRegular("then some regular again or you might want to ")
.addLink("click this line to go to my github ", "https://guthub.com/koceeng")
.addRegular("and ")
.addColored("give me a hug", Color.rgb(255, 0, 0));
yourTextView.setText(stringStyleBuilder.get(), TextView.BufferType.SPANNABLE);