圆形展开/关闭动画

来源：互联网发布：prim算法的意义编辑：程序博客网时间：2024/06/14 04:55

参考自：高仿哔哩哔哩客户端的SearchView http://www.jianshu.com/p/e0a6fc621945
这里写图片描述
开关点击：

CircleAnimateUtils.handleAnimate(txt);

圆形动画工具类：

public class CircleAnimateUtils {    public static void handleAnimate(final View animateView) {        //隐藏        if (animateView.getVisibility() == View.VISIBLE) {            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {                /**                 * createCircularReveal 方法参数                 * view 执行动画的view                 * centerX 圆心横坐标                 * centerY 圆心纵坐标                 * startRadius 动画开始时圆的半径                 * endRadius 动画结束时圆的半径                 */                final Animator animatorHide = ViewAnimationUtils.createCircularReveal(animateView,                        0,                        0,                        //确定圆的半径（算长宽的斜边长，这样半径不会太短也不会很长效果比较舒服）                        (float) Math.hypot(animateView.getWidth(), animateView.getHeight()),                        0);                animatorHide.addListener(new Animator.AnimatorListener() {                    @Override                    public void onAnimationStart(Animator animation) {                    }                    @Override                    public void onAnimationEnd(Animator animation) {                        animateView.setVisibility(View.GONE);                    }                    @Override                    public void onAnimationCancel(Animator animation) {                    }                    @Override                    public void onAnimationRepeat(Animator animation) {                    }                });                animatorHide.setDuration(300);                animatorHide.start();            } else {                animateView.setVisibility(View.GONE);            }            animateView.setEnabled(false);        }        //显示        else {            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {                final Animator animator = ViewAnimationUtils.createCircularReveal(animateView,                        0,                        0,                        0,                        (float) Math.hypot(animateView.getWidth(), animateView.getHeight()));                animator.addListener(new Animator.AnimatorListener() {                    @Override                    public void onAnimationStart(Animator animation) {                        animateView.setVisibility(View.VISIBLE);                    }                    @Override                    public void onAnimationEnd(Animator animation) {                    }                    @Override                    public void onAnimationCancel(Animator animation) {                    }                    @Override                    public void onAnimationRepeat(Animator animation) {                    }                });                animator.setDuration(300);                animator.start();            } else {                animateView.setVisibility(View.VISIBLE);            }            animateView.setEnabled(true);        }    }}

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