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Android 动画

常规动画

  • 透明度
AlphaAnimation animation = new AlphaAnimation(0, 1);
animation.setDuration(1000);
imageView.startAnimation(animation);
  • 旋转
RotateAnimation animation = new RotateAnimation(0, 360,
        Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animation.setDuration(1000);
imageView.startAnimation(animation);
  • 位移
TranslateAnimation animation = new TranslateAnimation(0, 200, 0, 400);
animation.setDuration(1000);
imageView.startAnimation(animation);
  • 缩放
ScaleAnimation animation = new ScaleAnimation(0, 1, 0, 1,
        Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
animation.setDuration(1000);
imageView.startAnimation(animation);
  • 集合动画 AnimationSet

属性动画

  • ObjectAnimator

ObjectAnimator animator = ObjectAnimator.ofFloat(imageView,"translationY",300); animator.setDuration(1000); animator.start();

- PropertyValuesHolder 的使用，多个动画一起执行

PropertyValuesHolder valuesHolder1 = PropertyValuesHolder.ofFloat("translationX", 300); PropertyValuesHolder valuesHolder2 = PropertyValuesHolder.ofFloat("translationY", 300); ObjectAnimator.ofPropertyValuesHolder(imageView,valuesHolder1, valuesHolder2).setDuration(1000).start();

- ValueAnimator

ValueAnimator valueAnimator = ValueAnimator.ofInt(0, 100); valueAnimator.addUpdateListener( new ValueAnimator.AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator animation) { (textView).setText(animation.getAnimatedValue() + ""); } }); valueAnimator.setDuration(3000); valueAnimator.start();

- AnimatorSet 可以实现更为精确的顺序控制

AnimatorSet set = new AnimatorSet(); set.setDuration(500); set.setInterpolator(new BounceInterpolator()); set.playTogether(animator0, animator1, animator2, animator3, animator4); set.start();

参考博客：
https://blog.csdn.net/harvic880925/article/details/50995268