以编程方式触发ontouch事件 [英] trigger ontouch event programmatically

问题描述

我要做的是，当我从arduino(通过蓝牙)接收到特定的字符串时，在活动的特定区域触发ontouch事件.我试图用wii和arduino构建一个控制器，以便在我正在编写自己的游戏中使用.

what i'm trying to do is trigger an ontouch event at a specific region on my activity when i receive a specific string from an arduino(via bluetooth). i trying to build a controller with a wii and an arduino to use in a game i'm writing myself.

在回答这个问题之前，我已经知道有一个函数 * openButton.performClick();.为此，但在游戏中我并不总是要使用按钮，因此效果不好.

before you answer this , i already know that there is a function * openButton.performClick(); for this but in the game i'm not always going to be using buttons so its not good .

我想模拟adb像猴子那样的触摸，但没有root许可 像注入触摸之类的东西只是没有根.

i want to simulate a touch like the the adb does it with monkey, but without root permission something like inject touch just no root.

这是代码的一部分:

    int[] loc = new int[2]; 
    openButton.getLocationOnScreen(loc);// get the region where to simulate the //touch event
    xTest = (float)loc[0]; 
    yTest = (float)loc[1]; 



@SuppressLint("Recycle") void testing(){
    long downTime = SystemClock.uptimeMillis();
    long eventTime = SystemClock.uptimeMillis() + 100;
    float x = xTest;
    float y = yTest;


    int metaState = 0;
    MotionEvent motionEvent = MotionEvent.obtain(
        downTime, 
        eventTime, 
        MotionEvent.ACTION_UP, 
        x, 
        y, 
        metaState
    );
    dispatchTouchEvent(motionEvent);


}

@Override
public boolean onTouch(View v, MotionEvent event) {
    // TODO Auto-generated method stub
     int action = event.getAction();
        switch (action & MotionEvent.ACTION_MASK) {
            case MotionEvent.ACTION_UP:
                // do something
                openButton.performClick();
                break;
            case MotionEvent.ACTION_MOVE:
                // do something
                // how to trigger a ACTION_DOWN event here?
                break;
    }

    return false;
}

所以我们得到了一个特定的字符串，我想在屏幕上的特定区域以编程方式模拟一个toucht事件，这次是一个按钮，但这可能就是其他原因，这就是为什么"view.performclick()"不好的原因. 我看过一些例子，在他们将dispatchTouchEvent放在视图之前，如果这样做，我会得到一个错误 预先感谢您的帮助

so wenn i get a specific string i want to simulate a toucht event programmatically at a specific region on the screen, this time its a button , but it could be something else thats why "view.performclick()" is not good. I've seen some examples where before the dispatchTouchEvent they put view, if i do this i get an error thanks you in advance for your help

推荐答案

如果您使用的是onTouchListener，则onTouch(...)方法是公共的，因此我想您可以调用它.

If you're using an onTouchListener, the onTouch(...) method is public so I guess you could call it.

因此，当您实例化onTouchListener时，将其存储为变量.

So when you instantiate the onTouchListener store it as a variable.

OnTouchListener listener = new OnTouchListener() { [[override code etc.]]  }

然后只调用您已重写的onTouch方法，并为其提供您要模拟触摸的视图和事件.

Then just call the onTouch method you've overridden and give it the view and event you want to simulate the touch on.

MotionEvent没有承包商，但是有一个工厂方法叫做get():

MotionEvent doesn't have a contractor, but has a factory method called obtain():

MotionEvent myEvent = MotionEvent.obtain(long downTime, long eventTime, int action, float x, float y, int metaState);

然后将其传递给您的onTouch:

Then just pass it to your onTouch:

onTouch(myView, myEvent);

假设您已将正确的值传递给事件，则不会知道两者之间的区别.

Assuming you've passed the correct values to your event, it won't know the difference.

有关MotionEvent的更多信息以及参数的含义，请访问:

For more on the MotionEvent and what the parameters mean, go to:

http://developer.android.com/reference/android/view/MotionEvent.html

谢谢！

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