Android之仿心跳动画实现

来源：互联网发布：淘宝网时尚女装编辑：程序博客网时间：2024/05/22 06:07

// 按钮模拟心脏跳动
    private void playHeartbeatAnimation() {
        AnimationSet animationSet = new AnimationSet(true);
        animationSet.addAnimation(new ScaleAnimation(1.0f,1.8f,1.0f,1.8f,
                Animation.RELATIVE_TO_SELF,0.5f, Animation.RELATIVE_TO_SELF,
                0.5f));
        animationSet.addAnimation(new AlphaAnimation(1.0f,0.4f));
 
        animationSet.setDuration(200);
        animationSet.setInterpolator(new AccelerateInterpolator());
        animationSet.setFillAfter(true);
 
        animationSet.setAnimationListener(new AnimationListener() {
 
            @Override
            public void onAnimationStart(Animation animation) {
            }
 
            @Override
            public void onAnimationRepeat(Animation animation) {
            }
 
            @Override
            public void onAnimationEnd(Animation animation) {
                AnimationSet animationSet = new AnimationSet(true);
                animationSet.addAnimation(new ScaleAnimation(1.8f,1.0f,1.8f,
                        1.0f, Animation.RELATIVE_TO_SELF, 0.5f,
                        Animation.RELATIVE_TO_SELF,0.5f));
                animationSet.addAnimation(new AlphaAnimation(0.4f,1.0f));
 
                animationSet.setDuration(600);
                animationSet.setInterpolator(new DecelerateInterpolator());
                animationSet.setFillAfter(false);
 
                                // 实现心跳的View
                imageView.startAnimation(animationSet);
            }
        });
  
                // 实现心跳的View
        imageView.startAnimation(animationSet);
    }   

由于这是一个循环的动画，所以需要开一个线程来进行动画的实现，当然还有另外一个方法，就是在一个动画结束开始另一个动画，在另一个动画结束开始这个动画也可以，这边示例用的是线程。

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new Thread(){
            public void run() {
                while (true){
                    try {
                        Thread.sleep(1000);
                    }catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }
                    runOnUiThread(new Runnable() {
                        public void run() {
                            playHeartbeatAnimation();
                        }
                    });
                }
            };
        }.start();

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