CODEWITHSUNDEEP
android
Abhijit Chakra
Abhijit Chakra

Reputation: 3236

how automatically perform touch in android programmatically

I have a RelativeLayout I want to perform a touch event with out touching the screen want to give a Toast message if its actually touched or not.Please throw I have tried with the below it seems not working

MotionEvent event = MotionEvent.obtain(downTime, eventTime, action, 
                                       x, y, pressure, size, 
                                       metaState, xPrecision, yPrecision, 
                                       deviceId, edgeFlags);
onTouchEvent(event);

Upvotes: 3

Views: 10338

Answers (3)

pankti mistry
pankti mistry

Reputation: 1

Try This

 Button btnTouch = (Button) findViewById(R.id.btn_touch);
            btnTouch.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    x++;
                    y++;
                    perFromTouch(x,y);
                }
            });

     private void perFromTouch(float x, float y) {

            // Obtain MotionEvent object
            long initTime = android.os.SystemClock.uptimeMillis();
            long eventTime = android.os.SystemClock.uptimeMillis() + 100;


            // List of meta states found here:     developer.android.com/reference/android/view/KeyEvent.html#getMetaState()
            int metaState = 0;
            MotionEvent motionEvent = MotionEvent.obtain(
                    initTime,
                    eventTime,
                    MotionEvent.ACTION_UP,
                    x,
                    y,
                    metaState
            );
            motionEvent.setSource(inputSource);
            v.dispatchTouchEvent(motionEvent);
        }

Upvotes: 0

xeed
xeed

Reputation: 947

You should not do that. If you indeed want to "touch" your view programatically, you should wrap whatever happens in your onTouch method in another function(without the MotionEvent parameter) and call that function, when you want to touch your view. Calling the onTouch without a real touch would get you negative stylepoints

@Override
boolean onTouch(View v, MotionEvent me) {
  return action(me.getX(),me.getY());
}

boolean action(int x, int y) {
  //do some stuff
}

void somewhereelse() {
  //Perform touch action
  action(0,0);
}

If you really want to 'dispatch' a touch event. You do it like this:

View v;
v.dispatchTouchEvent(MotionEvent.obtain(0,0,MotionEvent.ACTION_DOWN, 100,100,0.5f,5,0,1,1,0,0));

The values are pretty random. Only the deviceId=0 indicates that it is programatically dispatched Touch.

Upvotes: 7

Anil Jangir
Anil Jangir

Reputation: 19

Find your layout in activity 

RelativeLayout layout=(RelativeLayout)findviewbyid(R.id.relativelayout);

layout.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View arg0, MotionEvent arg1) {
            // TODO Auto-generated method stub
            //do your work
            return false;

        }
    });

Upvotes: -1

Related Questions