Android购物车添加商品动画抛物线ParabolaAnimation

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public class ParabolaAnimation{pirvate View mAnimationView;private LinearLayout mAnimationLayout;private ViewGroup mRootView;/*** 抛物线* @param view* @param context* @param start_location* @param end_location*/public  void parabola( View view,  Context context, int[] start_location,int[] end_location) {mAnimationView = view;mRootView = (ViewGroup) ((Activity)context).getWindow().getDecorView();mAnimationLayout = new LinearLayout(context);LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,LinearLayout.LayoutParams.MATCH_PARENT);mAnimationLayout.setLayoutParams(lp);mAnimationLayout.setId(Integer.MAX_VALUE);mAnimationLayout.setBackgroundResource(android.R.color.transparent);mRootView.addView(mAnimationLayout);mAnimationLayout.addView(view);//把动画小球添加到动画层int x = start_location[0];int y = start_location[1];LinearLayout.LayoutParams viewLp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT);viewLp.leftMargin = x;viewLp.topMargin = y;view.setLayoutParams(viewLp);// 计算位移int endX = end_location[0] - start_location[0];// 动画位移的X坐标int endY = end_location[1] - start_location[1];// 动画位移的y坐标TranslateAnimation translateAnimationX = new TranslateAnimation(0,endX, 0, 0);translateAnimationX.setInterpolator(new LinearInterpolator());translateAnimationX.setRepeatCount(0);// 动画重复执行的次数translateAnimationX.setFillAfter(true);TranslateAnimation translateAnimationY = new TranslateAnimation(0, 0,0, endY);translateAnimationY.setInterpolator(new BeeAnticipateInterpolator(0.8f));translateAnimationY.setRepeatCount(0);// 动画重复执行的次数translateAnimationX.setFillAfter(true);AnimationSet set = new AnimationSet(false);set.setFillAfter(false);set.addAnimation(translateAnimationY);set.addAnimation(translateAnimationX);set.setDuration(700);// 动画的执行时间view.startAnimation(set);// 动画监听事件set.setAnimationListener(new Animation.AnimationListener() {// 动画的开始@Overridepublic void onAnimationStart(Animation animation) {mAnimationView.setVisibility(View.VISIBLE);}@Overridepublic void onAnimationRepeat(Animation animation) {// TODO Auto-generated method stub}// 动画的结束@Overridepublic void onAnimationEnd(Animation animation) {mAnimationView.setVisibility(View.GONE);mAnimationLayout.setVisibility(View.GONE);//mRootView.removeView(mAnimationLayout);}});}
}