Bdtjtk

I don't know if my question is valid or not for this forum. I do apologize in advance if that's not the case.

How to distinguish between single and multiple touch(with two fingers)?

What I want determine exactly is one button will be in corner of the screen.

Case A:
If user touches single touch and hold on this view, drag event should perform

Case B:
If user performs multiple touch that is holding the screen with two fingers with one finger on the button and the other on corner of the opposite side should launch different screen.

The below code I used to for holding on the screen for Case B.

Using the below code how to achieve Case A as well.

// touch listener which handles onLongPress(two points hold) and drag events

private View.OnTouchListener mOnTouchListener = new View.OnTouchListener() {

    @Override

    public boolean onTouch(View view, MotionEvent event) {

        final int displayWidth = ((WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE))

                .getDefaultDisplay().getWidth();

        final int displayHeight = ((WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE))

                .getDefaultDisplay().getHeight();



        // coordinates for drag listener

        float dX = 0;

        float dY = 0;



        // coordinates of first

        float firx = 0;

        float firy = 0;



        // coordinates of second

        float secx = 0;

        float secy = 0;



        Log.d(TAG, "onTouch->(Event : " + event.toString() + ")");







        // captures first touch in hold

        if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {

            firx = event.getX();

            firy = event.getY();

            dX = view.getX() - event.getRawX();

            dY = view.getY() - event.getRawY();

            Log.d(TAG, "1st cor:" + firx + ":" + firy);

        }



        // captures drag event

        if (event.getActionMasked() ==MotionEvent.ACTION_MOVE){

            //handleAppSwap( Math.round(dX),Math.round(event.getRawX() + dX));

            Log.d(TAG, "Drag event happens" );

        }

        // captures second touch event in hold

        if (event.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN && event.getActionIndex() == 0) {

            Log.d(TAG, "captures second ");

            secx = event.getX();

            secy = event.getY();

            Log.d(TAG, "2nd cor:" + secx + ":" + secy);

            mSecondFingerTimeDown = System.currentTimeMillis();

        }



        // release event  on screen corners

        if (event.getActionMasked() == MotionEvent.ACTION_POINTER_UP && event.getActionIndex() == 0) {

            if (((firx < X_OFFSET && firy < Y_OFFSET + 100) && (secx > displayWidth - X_OFFSET && secy > displayHeight - Y_OFFSET)) || ((secx < X_OFFSET && secy < Y_OFFSET) && (firx > displayWidth - X_OFFSET && firy > displayHeight - Y_OFFSET))) {

                if ((System.currentTimeMillis() - mSecondFingerTimeDown) >= 5000) {

                    Log.d(TAG, "HOLD AND RELEASE........");

                    mEngHandler.removeCallbacksAndMessages(null);

                    Message msg = mEngHandler.obtainMessage(ACTION_BOTTOM_RIGHT_RELEASE);

                    mEngHandler.sendMessage(msg);

                }

            }



        }

        return false;

    }

};

Thanks in Advance. Any link or code will be helpful