Image isn't displayed in ImageViewZoom

Question

I'd like to use ImageViewZoom with Universal Image Loader in ImagePagerActivity.

So, what I did:

1. I added imageviewtouch.jar to project classpath.

2. In ImagePagerActivity I changed one line in instantiateItem() function. I commented line where is ImageView and replaced it to ImageViewTouch (4. and 5. line)

   @Override
   public Object instantiateItem(View view, int position) {
       final View imageLayout = inflater.inflate(R.layout.item_pager_image, null);
       //final ImageView imageView = (ImageView) imageLayout.findViewById(R.id.image);
       final ImageViewTouch imageView = (ImageViewTouch) imageLayout.findViewById(R.id.image);
   
       final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading);
       final TextView textView = (TextView)imageLayout.findViewById(R.id.text);
   
       imageLoader.displayImage(images[position], imageView, options, new ImageLoadingListener() {
   
   
           public void onLoadingStarted() {
               spinner.setVisibility(View.VISIBLE);
           }
   
   
           public void onLoadingFailed(FailReason failReason) {
               String message = null;
               switch (failReason) {
                   case IO_ERROR:
                       message = "Input/Output error";
                       break;
                   case OUT_OF_MEMORY:
                       message = "Out Of Memory error";
                       break;
                   case UNKNOWN:
                       message = "Unknown error";
                       break;
               }
               Toast.makeText(ImagePagerActivity.this, message, Toast.LENGTH_SHORT).show();
   
               spinner.setVisibility(View.GONE);
               imageView.setImageResource(android.R.drawable.ic_delete);
           }
   
   
           public void onLoadingComplete(Bitmap loadedImage) {
               spinner.setVisibility(View.GONE);
               Animation anim = AnimationUtils.loadAnimation(ImagePagerActivity.this, R.anim.fade_in);
               imageView.setAnimation(anim);
               anim.start();
           }
   
   
           public void onLoadingCancelled() {
               // Do nothing
           }
       });
   
       ((ViewPager) view).addView(imageLayout, 0);
       return imageLayout;
   }
   

3. In /res/layout/item_pager_image.xml I replace ImageView to it.sephiroth.android.library.imagezoom.ImageViewTouch

    <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
       android:layout_width="fill_parent"
       android:layout_height="fill_parent"
       android:padding="1dip" >
   
     <it.sephiroth.android.library.imagezoom.ImageViewTouch
        android:layout_weight="1"
        android:id="@+id/image"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:scaleType="fitCenter" />
   
     <ProgressBar
       android:id="@+id/loading"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:layout_gravity="center"
       android:visibility="gone" />
   
   </FrameLayout>
   

I run this Android application, but when I choose Image Pager in menu screen, there is no image displayed, only black screen. In logcat I see that image was downloaded and displayed... If I change ImageViewTouch to original ImageView, everything is OK, but of course there is no zoom feature. If someone knows what I do wrong, I'd be very grateful. (sorry for my English)

Answer 1

Change ImageViewTouch parameter from android:layout_height="0dp" to other value.