android——为View设置动画效果
导入jar包:nineoldandroids-2.4.0(开源动画库);
实例化View view;
创建动画集:
//1.创建动画集 AnimatorSet set = new AnimatorSet(); //2.添加动画 set.playTogether( ObjectAnimator.ofFloat(view, "scaleX", 2, 1.5f, 1).setDuration( mDuration), ObjectAnimator.ofFloat(view, "scaleY", 2, 1.5f, 1).setDuration( mDuration), ObjectAnimator.ofFloat(view, "alpha", 0, 1) .setDuration(mDuration * 3 / 2) ); //3.开启动画 set.start();