Android 根据坐标获取控件方法

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Android 根据坐标获取控件方法

2015-01-15       0 个评论    来源：陈英有  

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/**       * 根据坐标获取相对应的子控件<br>       * 在Activity使用       *       * @param x坐标       * @param y坐标       * @return 目标View       */      public View getViewAtActivity( int x, int y) {          // 从Activity里获取容器          View root = getWindow().getDecorView();          return findViewByXY(root, x, y);      }      /**       * 根据坐标获取相对应的子控件<br>       * 在重写ViewGroup使用       *       * @param x坐标       * @param y坐标       * @return 目标View       */      public View getViewAtViewGroup( int x, int y) {          return findViewByXY( this , x, y);      }      private View findViewByXY(View view, int x, int y) {          View targetView = null ;          if (view instanceof ViewGroup) {              // 父容器,遍历子控件              ViewGroup v = (ViewGroup) view;              for ( int i = 0 ; i < v.getChildCount(); i++) {                  targetView = findViewByXY(v.getChildAt(i), x, y);                  if (targetView != null ) {                      break ;                  }              }          } else {              targetView = getTouchTarget(view, x, y);          }          return targetView;      }      private View getTouchTarget(View view, int x, int y) {          View targetView = null ;          // 判断view是否可以聚焦          ArrayList<view> TouchableViews = view.getTouchables();          for (View child : TouchableViews) {              if (isTouchPointInView(child, x, y)) {                  targetView = child;                  break ;              }          }          return targetView;      }      private boolean isTouchPointInView(View view, int x, int y) {          int [] location = new int [ 2 ];          view.getLocationOnScreen(location);          int left = location[ 0 ];          int top = location[ 1 ];          int right = left + view.getMeasuredWidth();          int bottom = top + view.getMeasuredHeight();          if (view.isClickable() && y >= top && y <= bottom && x >= left                  && x <= right) {              return true ;          }          return false ;      } </view>

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