仿饿了么购物车下单动画效果

效果图

[代码]java代码：

? 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 tv_shop_add.setOnClickListener( new OnClickListener() {                    @Override                  public void onClick(View v) {                      // 一个整型数组，用来存储按钮的在屏幕的X、Y坐标                      int [] start_location = new int [ 2 ];                      // 这是获取购买按钮的在屏幕的X、Y坐标（这也是动画开始的坐标）                      v.getLocationInWindow(start_location);                      buyImg = new ImageView(context);                      // 设置buyImg的图片                      buyImg.setImageBitmap(getAddDrawBitMap());                      // 开始执行动画                      setAnim(buyImg, start_location);                        // iscontans(arrayList.get(position));                  }              });

[代码]java代码：

? 001 002 003 004 005 006 007 008 009 010 011 012 013 014 015 016 017 018 019 020 021 022 023 024 025 026 027 028 029 030 031 032 033 034 035 036 037 038 039 040 041 042 043 044 045 046 047 048 049 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 065 066 067 068 069 070 071 072 073 074 075 076 077 078 079 080 081 082 083 084 085 086 087 088 089 090 091 092 093 094 095 096 097 098 099 100 101 102 103 104 105 106 107 108 109 /**   * 运动的控件   *   * @return   */ public Bitmap getAddDrawBitMap() {      ImageView text = new ImageView(context);      // 运动的控件，样式可以自定义      text.setBackgroundResource(R.drawable.xiaohongdian_shangping);      return convertViewToBitmap(text); }   /**   * 创建动画层   */ private ViewGroup createAnimLayout() {      ViewGroup rootView = (ViewGroup) ((Activity) context).getWindow().getDecorView();      LinearLayout animLayout = new LinearLayout(context);      LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,              LinearLayout.LayoutParams.MATCH_PARENT);      animLayout.setLayoutParams(lp);      animLayout.setId(Integer.MAX_VALUE);      animLayout.setBackgroundResource(android.R.color.transparent);      rootView.addView(animLayout);      return animLayout; }   private View addViewToAnimLayout( final ViewGroup vg, final View view, int [] location) {      int x = location[ 0 ];      int y = location[ 1 ];      LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,              LinearLayout.LayoutParams.WRAP_CONTENT);      lp.leftMargin = x;      lp.topMargin = y;      view.setLayoutParams(lp);      return view; }   /**   * // 开始执行动画   * @param v   * @param start_location   */ private void setAnim( final View v, int [] start_location) {      anim_mask_layout = null ;      anim_mask_layout = createAnimLayout();      // 把动画小球添加到动画层      anim_mask_layout.addView(v);      final View view = addViewToAnimLayout(anim_mask_layout, v, start_location);      // 这是用来存储动画结束位置的X、Y坐标      int [] end_location = new int [ 2 ];      // rl_gouwuche是小球运动的终点 一般是购物车图标      rl_gouwuche.getLocationInWindow(end_location);        // 计算位移      int endX = 0 - start_location[ 0 ] + 40 ; // 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 AccelerateInterpolator());      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( 800 ); // 动画的执行时间      view.startAnimation(set);      // 动画监听事件      set.setAnimationListener( new AnimationListener() {          // 动画的开始          @Override          public void onAnimationStart(Animation animation) {              v.setVisibility(View.VISIBLE);          }            @Override          public void onAnimationRepeat(Animation animation) {              // TODO Auto-generated method stub          }            // 动画的结束          @Override          public void onAnimationEnd(Animation animation) {              v.setVisibility(View.GONE);          }      });   }   /**   * 将定义的view装换成 bitmap格式   *   * @param view   * @return   */ public Bitmap convertViewToBitmap(View view) {      view.measure(MeasureSpec.makeMeasureSpec( 0 , MeasureSpec.UNSPECIFIED),              MeasureSpec.makeMeasureSpec( 0 , MeasureSpec.UNSPECIFIED));      view.layout( 0 , 0 , view.getMeasuredWidth(), view.getMeasuredHeight());      view.buildDrawingCache();      Bitmap bitmap = view.getDrawingCache();      return bitmap; }