CODEWITHSUNDEEP
androidmulti-touchontouchlistener
Mamun Sardar
Mamun Sardar

Reputation: 2729

Multi touch for different views on android

If I have two buttons in my view and I want to enable OntouchListener for that two buttons at the same time,I mean touching 1st button started one task and holding that 1st button touching 2nd button started another task. How to do it?Waiting for help.

Upvotes: 0

Views: 2440

Answers (5)

Binod Rokka
Binod Rokka

Reputation: 869

it is quite simple @Override public boolean onTouch(View v, MotionEvent arg1) { switch (v.getId()) { case R.id.button1:
if(arg1.getAction()==MotionEvent.ACTION_DOWN) { //your event } break; case R.id.button2: if(arg1.getAction()==MotionEvent.ACTION_DOWN) { //your event } break; default: break; } return true; }

Upvotes: 0

TamiL
TamiL

Reputation: 2896

Try the following code snippet. 

@Override
public boolean onTouch(View v, MotionEvent event) {
switch(event.getAction() & MotionEvent.ACTION_MASK) {

case MotionEvent.ACTION_DOWN:
    //first finger went down
    break;

case MotionEvent.ACTION_MOVE:
    //a touch placement has changed
    break;

case MotionEvent.ACTION_UP:
    //first finger went up
    break;

case MotionEvent.ACTION_CANCEL:
    //gesture aborted (I think this means the finger was dragged outside of the touchscreen)
    break;

case MotionEvent.ACTION_POINTER_DOWN:
  if(mFirstButton.isPressed() && mSecondButton.isPressed())
   {// your code.}
    break;

Upvotes: 3

Laviniux
Laviniux

Reputation: 364

So I am not sure what you want to accomplish, but you have something like:

private boolean mFirstButtonDown = false;

@Override
public boolean onTouchEvent(MotionEvent event){
    // first button onTouchEvent
    switch (event.getAction()){
       case MotionEvent.ACTION_DOWN:
                            mFirstButtonDown = true;
            break;
       case MotionEvent.ACTION_UP:
                            mFirstButtonDown = false;
            break;
    }
   ....
}

For the second button just check if it is still holded:

 @Override
 public boolean onTouchEvent(MotionEvent event){
   switch (event.getAction()){
       case MotionEvent.ACTION_DOWN:
         if (mFirstButtonDown && (event.getPointerCount() > 1)) {
             // do task
     }
 }

To simultaneously touch 2 buttons use multi-pointers (or multi-touch), you can find more details on this post: Multiple button presses for Android 2.x

Another good article that can help you understand multi-pointers is on Android developers: http://android-developers.blogspot.ro/2010/06/making-sense-of-multitouch.html

The code above is not tested, it should just give you an idea:)

Upvotes: 2

Adam Monos
Adam Monos

Reputation: 4307

You can either add two separate OnTouchListeners to the two buttons, and indicate the touched state of the buttons with two booleans in your Activity, or you can add a single OnTouchListener to your parent View and compare the touch coordinates of the pointers in the MotionEvent to the two Buttons' coordinates.

Upvotes: 0

JiTHiN
JiTHiN

Reputation: 6588

You can add a onTouchListener to that view which will handle multiple touch.

   @Override
public boolean onTouch(View v, MotionEvent event) {
    switch(event.getAction() & MotionEvent.ACTION_MASK) {

    case MotionEvent.ACTION_DOWN:
        //first finger went down
        break;

    case MotionEvent.ACTION_MOVE:
        //a touch placement has changed
        break;

    case MotionEvent.ACTION_UP:
        //first finger went up
        break;

    case MotionEvent.ACTION_CANCEL:
        //gesture aborted (I think this means the finger was dragged outside of the touchscreen)
        break;

    case MotionEvent.ACTION_POINTER_DOWN:
        //second finger (or third, or more) went down.
        break;

    case MotionEvent.ACTION_POINTER_UP:
        //second finger (or more) went up.
        break;

        default: break;
    }
    return true;
}

Check if your button is clicked inside respective cases.

Upvotes: 6

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