MaterialDesign系列文章(四)RecealAnima
2017-11-06 本文已影响38人
笔墨Android
RevealAnimator动画效果
首先这个动画是在5.0以上的版本才能使用的
- view 作用的View
- centerX 动画开始的中心点X
- centerY 动画开始的中心点Y
- startRadius 动画开始半径
- endRadius 动画结束半径
public static Animator createCircularReveal(View view,
int centerX, int centerY, float startRadius, float endRadius) {
return new RevealAnimator(view, centerX, centerY, startRadius, endRadius);
}
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final View oval = this.findViewById(R.id.oval);
oval.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Animator animator = ViewAnimationUtils.createCircularReveal(
oval,
oval.getWidth()/2,
oval.getHeight()/2,
oval.getWidth(),
0);
animator.setInterpolator(new AccelerateDecelerateInterpolator());
animator.setDuration(2000);
animator.start();
}
});
final View rect = this.findViewById(R.id.rect);
rect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Animator animator = ViewAnimationUtils.createCircularReveal(rect, 0, 0, 0, (float) Math.hypot(rect.getWidth(), rect.getHeight()));
animator.setInterpolator(new AccelerateInterpolator());
animator.setDuration(2000);
animator.start();
}
});
