getPressure always returning 1.0

Question

Does anyone have any idea why getPressure() returns always 1.0?

Here is my code:

@Override
    public boolean onTouchEvent(MotionEvent event) {
        super.onTouchEvent(event);

        System.out.println(event.getPressure());

        return true;

    }

score 2 · Accepted Answer · answered Sep 13 '12 at 21:09

2

Does anyone have any idea why getPressure() returns always 1.0?

The typical touchscreen / input device has no way to measure pressure. You either don't press and get no touch event or you press and get a touch event with value 1.

answered Sep 13 '12 at 21:09

zapl

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That is not true. Touchscreen devices can calculate pressure basing on size of contact area, which works well for fingers. – Skiba Apr 29 '14 at 06:59
@Skiba +1 I guess I was wrong about that. Capacitive and resistive touchscreens can determine an area / strength but for values other than 1 and 0 to appear they have to evaluate and expose that data from touchscreen to low level driver to highlevel `TouchEvent`. And several simply don't do that. – zapl Apr 30 '14 at 08:55

score 0 · Answer 2 · answered Jan 15 '14 at 19:15

0

https://groups.google.com/forum/#!topic/android-developers/10pF8EUEuy0 Here's an answer about how getPressure and getSize() work in Android, I think this would help

answered Jan 15 '14 at 19:15

Master_Yi

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getPressure always returning 1.0

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