);
final int initialHeight = mRecyclerView.getMeasuredHeight();
ValueAnimatorvalueAnimator = ValueAnimator.ofInt(initialHeight,HEIGHT_VIEW_APPDATA*3+HEIGHT_SECTION_FOOTER);valueAnimator.addUpdateListener(new ValueAnimator</e
我使用ValueAnimator来动画一个视图,但是每当我调用start()时,它就会抛出一个NullPointerException。下面是在代码中调用start()之后的堆栈跟踪: at android.animation.ValueAnimator.initAnimation(ValueAnimator.java:447)
at android.animation.ValueAnimator.setCurrentPl
我正在使用ValueAnimator的边框颜色过渡,但我迷失了,因为它在视频中的‘旋转’或‘旋转’。我的代码如下:ValueAnimator anim = new ValueAnimator(); @Override
public void onAnimationUpdate(ValueAnimatorvalueAnimator)