When library calling iOS Version unsupported API

Library iOS Deployment Target must to set minimum supported Version

The Example App minimum supported Version iOS 8

Library iOS Deployment Target is Default (the last iOS Version)

Problem:

1. When using iOS 8 device run this app, it will crash at init app.

   Because iOS 8 unsupport:
   - (void)openURL:(NSURL*)url options:(NSDictionary<NSString *, id> *)options completionHandler:(void (^ __nullable)(BOOL success))completion NS_AVAILABLE_IOS(10_0) NS_EXTENSION_UNAVAILABLE_IOS("");

2. @available(iOS 10.0,*) will always true

   Because iOS Deployment Target is Default (the last iOS Version)

Solve the problem: