通过本指南开始实现具有共享元素和动画的开放图像.
https://android-developers.googleblog.com/2018/02/continuous-shared-element-transitions.html个
但有一个例外:
java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference
at android.support.transition.TransitionSet.setDuration(TransitionSet.java:196)
at android.support.transition.TransitionSet.setDuration(TransitionSet.java:60)
at android.support.transition.Transition.<init>(Transition.java:278)
at android.support.transition.TransitionSet.<init>(TransitionSet.java:91)
at android.support.transition.TransitionInflater.createTransitionFromXml(TransitionInflater.java:151)
at android.support.transition.TransitionInflater.inflateTransition(TransitionInflater.java:70)
什么时候打电话
TransitionInflater.from(context).inflateTransition(R.transition.my_transition)