21 января 2012 г. 12:08 пользователь skink <[email protected]> написал:
>
> [ snip ]
> Kostya,
>
> thanks for your answer, however:
>
> i tried 3 solutions (all of them are fixing my problem btw):
>
> 1) the most brutal: create new instance of GestureDetector
>
> public boolean onDoubleTap(MotionEvent e) {
> mDetector = new GestureDetector(this);
> // start activity here
> }
>
> 2) cancel() GestureDetector in-place of onDoubleTap
>
> public boolean onDoubleTap(MotionEvent e) {
> e.setAction(MotionEvent.ACTION_CANCEL);
> mDetector.onTouchEvent(e);
> // start activity here
> }
>
> 3) cancel() GestureDetector with posted Runnable
>
> public boolean onDoubleTap(final MotionEvent e) {
> mHandler.post(new Runnable() {
> public void run() {
> e.setAction(MotionEvent.ACTION_CANCEL);
> mDetector.onTouchEvent(e);
> }
> });
> // start activity here
> }
>
> but i'm still in doubts: i think that my original solution using
> onDoubleTapEvent is the most elegant and it doesn't use some internal
> "black magic" knowledge about cancel() and MotionEvent.ACTION_CANCEL
>
>
ACTION_CANCEL isn't anything secret:
http://developer.android.com/reference/android/view/MotionEvent.html
Under "consistency guarantees", it says:
"Views should always be prepared to handle
ACTION_CANCEL<http://developer.android.com/reference/android/view/MotionEvent.html#ACTION_CANCEL>
"
I suppose that applies to GestureDetector as well.
On the other hand, at this point, you've got four solutions and expressed
strong liking for one of them (your original one) - sounds like a plan then
:)
-- Kostya
> pskink
>
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