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findViewById with PhotoView library problem

By : Jesse Anon
Date : October 17 2020, 06:10 PM
help you fix your problem In your case issue is with typecasting either remove the typecasting or do something like this:
There are two ways you can fix this:
code :

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Swipe event not fired when using PhotoView Library

By : Omar Iqbal
Date : March 29 2020, 07:55 AM
With these it helps Use this class to create fling function which will simply extend SimpleOnGestureListener and then use that fling function to swipe your images. Here I'm using ViewPager.
code :
class MyGestureDetector extends SimpleOnGestureListener {
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
        try {
            if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
                return false;
            // right to left swipe
            if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE  && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY
                    && selectedPg == (pageCount - 1)) {
                return true;
            } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE   && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY
                    && selectedPg == 0) {
                shop_view_pager.setCurrentItem(pageCount - 1);
                return true;
        } catch (Exception e) {
            // nothing
        return false;
final GestureDetector gestureDetector = new GestureDetector(new MyGestureDetector());
    view_pager.setOnTouchListener(new OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
            return gestureDetector.onTouchEvent(event);
    view_pager.setOnPageChangeListener(new OnPageChangeListener() {

        public void onPageSelected(int position) {
            selectedPg = position;

PhotoView library and image set as wallpaper

By : Hirokazu
Date : March 29 2020, 07:55 AM
hope this fix your issue I'm using the PhotoView library to have a slide view of images. That's easy. Then I wanted set as wallpaper the image I wanted, maybe on click in a button but I have a problem! The library seems that not allows create a layout but only its in this way. , You can use FrameLayout:
code :
    mViewPager = (HackyViewPager) findViewById(R.id.view_pager);
    mButton = (Button) findViewById(R.id.button);
    mButton.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

Android Studio with uk.co.senab.photoview.PhotoView

By : user2860197
Date : March 29 2020, 07:55 AM
I wish this helpful for you you should check first: Package does not exist when using separate App as a dependency
then - if this does not fix your issue you should create a dependancy of your library:

Android using ION with PhotoView Library

By : user3146490
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I still don't quite understand why it doesn't work, but I was able to find an answer, where instead of adding the dependency of the library, I just found the jar file online and added that instead, now everything is working perfect. Library Link

PhotoView Library get color of pixels

By : user1640191
Date : March 29 2020, 07:55 AM
I wish this helpful for you Looks like the reason you are getting wrong colors when zoomed-in, is that getDrawingCache() returns the original drawable, not the zoomed-in one.
You need to invalidate the view so that getDrawingCache() to return a fresh bitmap.
code :
public void onViewTap(View view, float x, float y) {
    bitmap = photoView.getDrawingCache();
    // ...
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