Question

I want to make an application with 9 buttons for android 4.0, I need each of the buttons to call a method when pressed and another method when released.

I’m kind of surprised there’s not a really straight-forward method to accomplish what I just described but thanks to some questions and answers I read on stackoverflow I managed to accomplish what I need by adding a listener in each of the buttons, as shown for one of the buttons in the next code.

buttonUp.setOnTouchListener(new OnTouchListener() {
    public boolean onTouch(View v, MotionEvent event) {
        if(event.getAction() == MotionEvent.ACTION_DOWN) {
            buttonUpPressed();
        } else if (event.getAction() == MotionEvent.ACTION_UP) {
            buttonUpReleased();
        }                
        return true;
    }           
});

I want to know if there’s an alternative to accomplish this behavior without having to add a listener for every button. I see that as a waste of resources and a lot of coding. I can’t imagine if I eventually have to add more buttons.

So any help would be appreciated.

Answer 1

implements your class with OnTouchListener

Button a,b;
        Button[] bArray = {a,b};
        for (int i = 0; i < bArray.length; i++) {
            bArray[i].setOnTouchListener(this)
        }

after that add unimplemented method

@Override
    public boolean onTouch(View v, MotionEvent event) {
        // TODO Auto-generated method stub
            if(event.getAction() == MotionEvent.ACTION_DOWN){
                switch (v.getId()) {
                case R.id.button1:

                    break;

                default:
                    break;
                }
            }
            else if(event.getAction() == MotionEvent.ACTION_UP){
                switch (v.getId()) {
                case R.id.button1:

                    break;

                default:
                    break;
                }
            }
        return false;
    }

i hope you’ll like my logic 🙂