fragment/src/main/java/androidx/fragment/app/Fragment.java
private void callStartTransitionListener() {
        final OnStartEnterTransitionListener listener;
        if (mAnimationInfo == null) {
            listener = null;
        } else {
            mAnimationInfo.mEnterTransitionPostponed = false;
            listener = mAnimationInfo.mStartEnterTransitionListener;
            mAnimationInfo.mStartEnterTransitionListener = null;
        }
        if (listener != null) {
            listener.onStartEnterTransition();
        }
    }
/**
     * Calls the start transition listener. This must be called on the UI thread.
     */
Calls the start transition listener. This must be called on the UI thread.
Calls the start transition listener . This must be called on the UI thread .
private void callStartTransitionListener() {
        final OnStartEnterTransitionListener listener;
        if (mAnimationInfo == null) {
            listener = null;
        } else {
            mAnimationInfo.mEnterTransitionPostponed = false;
            listener = mAnimationInfo.mStartEnterTransitionListener;
            mAnimationInfo.mStartEnterTransitionListener = null;
        }
        if (listener != null) {
            listener.onStartEnterTransition();
        }
    }
private void callStartTransitionListener ( ) { final OnStartEnterTransitionListener listener ; if ( mAnimationInfo == null ) { listener = null ; } else { mAnimationInfo . mEnterTransitionPostponed = false ; listener = mAnimationInfo . mStartEnterTransitionListener ; mAnimationInfo . mStartEnterTransitionListener = null ; } if ( listener != null ) { listener . onStartEnterTransition ( ) ; } }
Calls the start transition listener.
Calls the start transition listener .