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Android beginner: Touch events in android gridview


Android beginner: Touch events in android gridview

By : user3861662
Date : November 20 2020, 07:00 PM
fixed the issue. Will look into that further Use the OnTouchListener in this way. Read up on MotionEvent types like ACTION_UP, ACTION_MOVE, and ACTION_DOWN which mean that the key was pressed here, mouse was moved, or key was unpressed here...
code :


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Touch events in Android

Touch events in Android


By : RAHMAT RAUP ABD GHAN
Date : March 29 2020, 07:55 AM
should help you out Is stopSound() being called? I think you need to return true in the action == MotionEvent.ACTION_DOWN block to tell the system that you handled the event.
Android Multi-touch event problems...No new touch events while dragging?

Android Multi-touch event problems...No new touch events while dragging?


By : Happy gohil
Date : March 29 2020, 07:55 AM
will be helpful for those in need You need to handle detecting the other finger. More specifically handling
MotionEvent.ACTION_POINTER_DOWN and MotionEvent.ACTION_POINTER_UP
code :
public void onTouchEvent(MotionEvent event)
{
    int ptrId = -1;
    int action = event.getAction();
    switch (action & MotionEvent.ACTION_MASK)
    {
        case MotionEvent.ACTION_DOWN:
            down(event.getPointerId(0), (int)event.getX(), (int)event.getY());
        break;
        case MotionEvent.ACTION_UP:
            up(event.getPointerId(0));
        break;
        case MotionEvent.ACTION_POINTER_DOWN:
            ptrId = action >> MotionEvent.ACTION_POINTER_ID_SHIFT;
            int ptrIdx = event.findPointerIndex(ptrId);
            down(ptrId, (int)event.getX(ptrIdx), (int)event.getY(ptrIdx));
        break;
        case MotionEvent.ACTION_POINTER_UP:
            ptrId = action >> MotionEvent.ACTION_POINTER_ID_SHIFT;
            up(ptrId);
        break;
        case MotionEvent.ACTION_MOVE:
            for(int i = 0; i < event.getPointerCount(); ++i)
                if(event.getPointerId(i) == inputPad.id())
                {
                    inputPad.position(event.getX(inputPad.id()));
                    player.velocity(inputPad.delta());
                    player.stand();
                    if(enemy != null) {
                        Fighter.collide(player, enemy);
                        enemy.update();
                    }
                    player.update();
                    break;
                }
        break;
    }
}
Can't get android touch events on GLSurfaceView

Can't get android touch events on GLSurfaceView


By : samara3343
Date : March 29 2020, 07:55 AM
hop of those help? onTouch works everywhere you want (i.e if it's activity or view) as long as you have declared the interface and put the Listener right! On the other hand onTouchEvent is working only inside a View
In other words, onTouch() is used by users of the View to get touch events while onTouchEvent() is used by derived classes of the View to get touch events
Android onTouch multi-touch not receiving all touch events

Android onTouch multi-touch not receiving all touch events


By : user2281418
Date : March 29 2020, 07:55 AM
hope this fix your issue Do not use getAction() == MotionEvent.ACTION_POINTER_UP as the action will also contain the pointer index.
getActionMasked() will strip out this information, and could be used for comparison.
My GridView/ListView gets rendered only after touch in android api 18+

My GridView/ListView gets rendered only after touch in android api 18+


By : Madhu Reddy
Date : March 29 2020, 07:55 AM
will be helpful for those in need UPDATE: My gridview / listview based on my BaseAdapter stopped working in Android 4.3. If I run it in Android 4.2 or below it works fine. , You have to call adapter.notifyDatasetChanged() on the ui thread
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