TransactionDelegate.java 文件源码

private void mockStartWithPopAnim(ISupportFragment from, ISupportFragment to, final Animation exitAnim) {
    Fragment fromF = (Fragment) from;
    final ViewGroup container = findContainerById(fromF, from.getSupportDelegate().mContainerId);
    if (container == null) return;

    from.getSupportDelegate().mLockAnim = true;
    View fromView = fromF.getView();
    container.removeViewInLayout(fromView);

    final ViewGroup mock = addMockView(fromView, container);

    to.getSupportDelegate().mEnterAnimListener = new SupportFragmentDelegate.EnterAnimListener() {
        @Override
        public void onEnterAnimStart() {
            mock.startAnimation(exitAnim);

            mHandler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    container.removeView(mock);
                }
            }, exitAnim.getDuration() + BUFFER_TIME);
        }
    };
}