Android 依据坐标获取控件方法

/**	 * 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;	}