Image being flipped vertically when using one finger zoom (double tap)

Double tapping the image and scrolling up and down to results in the image being “fliped” or rotated 90 degrees. The result is the image being upside down. if you repeat the process to returns to its original state.

Any way of disabling this one finger scrolling for the time being? By the way, I’m using PhotoView inside a full screen activity with Picasso.

        photoView = (PhotoView) findViewById(R.id.fullscreen_content);

        String imageUrl = getIntent().getStringExtra(EXTRA_IMAGE);
        attacher = new PhotoViewAttacher(photoView);
        Picasso.with(this).load(imageUrl).into(photoView, new Callback() {
            @Override
            public void onSuccess() {
                attacher.update();
            }

            @Override
            public void onError() {

            }
        });

I’m not sure I’m using this the right way either, but consuming the event does not disable double tap zooming

        photoView.setOnDoubleTapListener(new GestureDetector.OnDoubleTapListener() {
            @Override
            public boolean onSingleTapConfirmed(MotionEvent e) {
                return true;
            }

            @Override
            public boolean onDoubleTap(MotionEvent e) {
                return true;
            }

            @Override
            public boolean onDoubleTapEvent(MotionEvent e) {
                return true;
            }
        });

https://goo.gl/photos/uLZbtDebGJMfA2aj9

[baldermork]

It looks like ScaleGestureDetector broke this form of scaling gesture in Nougat. I reported an issue here: https://code.google.com/p/android/issues/detail?id=230118

One possibility would be to call ScaleGestureDetectorCompat.setQuickScaleEnabled(mDetector, false) in FroyoGestureDetector.java if we’re running on a Nougat devices.

[maciej-kaznowski]

Fixed here: https://github.com/chrisbanes/PhotoView/pull/667 so it is from 2.3.0