如何知道哪些被触摸视图 [英] How to know which View is being touched

问题描述

我想建立一个乒乓游戏，该桨在屏幕底部显示和砖头放在最上面。我用三个观点，一个是桨，一个球，另外一个是描绘了两个视图（球和桨）主要观点：

I'm trying to build a Ping Pong game, that the paddle is shown in the bottom of the screen and the bricks is on the top. I use three views, one for the paddle, one for the ball and another one that is the main view that paints the two views (ball and paddle):

public void draw(Canvas canvas){
    BallView.draw(canvas);
    PaddleView.draw(canvas);
}

我想知道的是，如果我能确定哪些观点被触摸正好，我尝试用 onTouchEvent 来做到这一点的主要活动：

What I want to know is if I can identify which view is being touched exactly, I try to do it with onTouchEvent in the main Activity:

   @Override
    public boolean onTouchEvent(MotionEvent event){
        Log.d("touched", "touched")
        return true;
    }

不过，问题是，不管我在哪里触摸屏幕上，桨移动，我想，只有当我触摸桨，他会移动。
所以，我怎么能做到这一点，如果可能的话？
谢谢你。

But, the problem is that no matter where I touch on the screen, the paddle is moving, and I want, that only when I touch the Paddle he will move. SO, how can I do this, if it is possible? Thanks.

推荐答案

您可以用另一种方式一样做到这一点，就画两个相对的布局，蓝色和黄色相同的情况下，使之既相对布局为一个可点击：真从XML和处理的onClick：onClickHandler。希望这会为你工作。

You can achieve this in another way like, just draw two relative layouts blue and yellow same as in your case and make it both relative layout as a clickable : true from the xml and handle the onClick:"onClickHandler". hope this will work for you.

                <RelativeLayout
                    android:id="@+id/rl_click_blue"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentRight="true"
                    android:background="#ffffff"
                    android:clickable="true"
                    android:onClick="onClickHandler">
                </RelativeLayout> 

                <RelativeLayout
                    android:id="@+id/rl_click_yellow"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentRight="true"
                    android:background="#ffffff"
                    android:clickable="true"
                    android:onClick="onClickHandler">
                </RelativeLayout> 

               // Handle your functionality here.
               public void onClickHandler(View v)
               {
                   switch (v.getId()) {
                       case R.id.rl_click_blue:
                           break;

                       case R.id.rl_click_yellow:

                          break;
                   }
               }

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