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in Technique[技术] by (71.8m points)

android - OnTouch works, but OnClickListener doesn't?

I created a widget/control that I can reuse which I created by extending RelativeLayout. Then, in one of my Activities, I created a bunch of these widgets in a loop. However, I ran into an issue when I wanted to have each widget respond to a click.

I found that setting OnTouchListener works:

 this.setOnTouchListener(new OnTouchListener(){
        public boolean onTouch(View arg0, MotionEvent arg1) {
           //Triggers debug message
        }       
    });

but OnClickListener doesn't:

  this.setOnClickListener(new View.OnClickListener(){
        public void onClick(View v) {
           //Doesn't trigger debug message  
        }

    });

Why is this?

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by (71.8m points)

You should make sure that the TouchListener is not 'consuming' the touch event. If you return true from the onTouch() method, Android will consider it consumed and not pass it on to the other various touch handlers (which I am assuming will include the ClickListener).

You should do:

this.setOnTouchListener(new OnTouchListener(){
    public boolean onTouch(View arg0, MotionEvent arg1) {
        //Triggers debug message
        return false;
    }       
});

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