Receiving onTouch and onClick events with Android

Question

I have a view that need to process onTouch gestures and onClick events. What is the proper way to achieve this? I have an `onTouchListener` and an `onClickListener` set on the view. Whenever I do touch the view, first the `onTouch` event is triggered and later the `onClick`. However, from the `onTouch` event handler I have to return either `true` or `false`. Returning `true` means that the event is being consumed, so the android event system will not propagate the event any further. Therefore, an `onClick` event is never generated, atleast my `onClick` listener is never triggered when I return `true` in my `onTouch` event handler. On the other hand, returning `false` there is not an option, since this prevents the `onTouch` listener from receiving any further events that are necessary in order to recognize a gesture. What's the usual way of solving this?

Accepted Answer

In you GestureDetector, you can call callOnClick() directly. Note the View.callOnClick API requires API level 15. Just have a try.

```
 // Create a Gesturedetector
GestureDetector mGestureDetector = new GestureDetector(context, new MyGestureDetector());

// Add a OnTouchListener into view
m_myViewer.setOnTouchListener(new OnTouchListener()
{

@Override
    public boolean onTouch(View v, MotionEvent event)
    {
        return mGestureDetector.onTouchEvent(event);
    }
});

private class MyGestureDetector extends GestureDetector.SimpleOnGestureListener
{
    public boolean onSingleTapUp(MotionEvent e) {
        // ---Call it directly---
        callOnClick();
        return false;
    }

public void onLongPress(MotionEvent e) {
    }

public boolean onDoubleTap(MotionEvent e) {
        return false;
    }

public boolean onDoubleTapEvent(MotionEvent e) {
        return false;
    }

public boolean onSingleTapConfirmed(MotionEvent e) {
        return false;

}

public void onShowPress(MotionEvent e) {
        LogUtil.d(TAG, "onShowPress");
    }

public boolean onDown(MotionEvent e) {            
        // Must return true to get matching events for this down event.
        return true;
    }

public boolean onScroll(MotionEvent e1, MotionEvent e2, final float distanceX, float distanceY) {
        return super.onScroll(e1, e2, distanceX, distanceY);
    }

@Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
        // do something
        return super.onFling(e1, e2, velocityX, velocityY);
    }
}
```

Receiving onTouch and onClick events with Android

Solution

Problem

Related problems