https://developer.android.com/reference/android/support/transition/Transition
顺道搜了篇帖子https://www.jianshu.com/p/e497123652b5
在看BottomNavigationView的时候，又点进去BottomNavigationMenuView,完事在里边看到了一些动画代码，就顺道看了下
mSet = new AutoTransition();
mSet.setOrdering(TransitionSet.ORDERING_TOGETHER);
mSet.setDuration(ACTIVE_ANIMATION_DURATION_MS);
mSet.setInterpolator(new FastOutSlowInInterpolator());
mSet.addTransition(new TextScale());
go on
public class AutoTransition extends TransitionSet {
/**
* Constructs an AutoTransition object, which is a TransitionSet which
* first fades out disappearing targets, then moves and resizes existing
* targets, and finally fades in appearing targets.
*/
public AutoTransition() {
init();
}
public AutoTransition(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
setOrdering(ORDERING_SEQUENTIAL);
addTransition(new Fade(Fade.OUT))
.addTransition(new ChangeBounds())
.addTransition(new Fade(Fade.IN));
}
}
go on
public class TransitionSet extends Transition
使用
TransitionManager.beginDelayedTransition(layout_test,AutoTransition().addTransition(Explode()))
