问题
I am using shared element transition between activities and on devices with API 21 the method onEnterAnimationComplete() is not called. Is says here that it was introduced in api 21. Note that the method get called for Android version6 and 7. The problem occurs only for devices running on Android 5. Any ideas?
来源：https://stackoverflow.com/questions/39488410/onenteranimationcomplete-not-called-api-21