ViewPagerがビューを表示しない

Question

フラグメントを含まないビュー・ページャーを作成しました。

これはこれは私が

LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:gravity="center_horizontal" 
android:orientation="vertical"> 

<ImageView 
    android:id="@+id/imageViewThingsToFocus" 
    android:layout_width="wrap_content" 
    android:src="@mipmap/ic_launcher" 
    android:layout_height="wrap_content" /> 

<TextView 
    android:id="@+id/textViewThingsToFocus" 
    android:layout_width="match_parent" 
    android:textColor="@android:color/black" 
    android:text="xxxxx" 
    android:layout_height="wrap_content" /> 
</LinearLayout> 

を膨張していレイアウトです。しかし、私は、画面上のビューのいずれかが表示されない

public class CustomPagerAdapter extends PagerAdapter { 
private ArrayList<POJOThingsToFocus> thingsToFocusArrayList; 
private ImageLoader imageLoader; 
private ImageLoadingListener animateFirstListener = new AnimateFirstDisplayListener(); 
private DisplayImageOptions options; 
public CustomPagerAdapter(ArrayList<POJOThingsToFocus> thingsToFocusArrayList) { 
    this.thingsToFocusArrayList=thingsToFocusArrayList; 
    options = new DisplayImageOptions.Builder() 
      .showImageOnLoading(R.mipmap.ic_launcher) 
      .cacheInMemory(true) 
      .cacheOnDisk(true) 
      .considerExifParams(true) 
      .build(); 
} 

@Override 
public int getCount() { 
    return thingsToFocusArrayList.size(); 
} 

@Override 
public Object instantiateItem(ViewGroup container, int position) { 
    LayoutInflater mInflater = (LayoutInflater) 
      container.getContext().getSystemService(Activity.LAYOUT_INFLATER_SERVICE); 
    View layout = mInflater.inflate(R.layout.element_things_to_focus, null); 
    ImageView ivThingsToFocus = (ImageView) layout.findViewById(R.id.imageViewThingsToFocus); 
    TextView tvvThingsToFocus = (TextView) layout.findViewById(R.id.textViewThingsToFocus); 
    imageLoader = ImageLoader.getInstance();; 
    if (!imageLoader.isInited()) { 
     imageLoader.init(ImageLoaderConfiguration.createDefault(container.getContext())); 
    } 
    imageLoader.displayImage(thingsToFocusArrayList.get(position).getThingsToFocusImage(), ivThingsToFocus, options, animateFirstListener); 
    tvvThingsToFocus.setText(thingsToFocusArrayList.get(position).getThingsToFocusDescription()); 
    container.addView(layout); 
    return container; 
} 

@Override 
public void destroyItem(ViewGroup container, int position, Object object) { 
    container.removeView((View) object); 
} 


@Override 
public boolean isViewFromObject(View container, Object obj) { 
    return container == obj; 
} 

private static class AnimateFirstDisplayListener extends SimpleImageLoadingListener { 

    static final List<String> displayedImages = Collections.synchronizedList(new LinkedList<String>()); 

    @Override 
    public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { 
     if (loadedImage != null) { 
      ImageView imageView = (ImageView) view; 
      boolean firstDisplay = !displayedImages.contains(imageUri); 
      if (firstDisplay) { 
       FadeInBitmapDisplayer.animate(imageView, 500); 
       displayedImages.add(imageUri); 
      } 
     } 
    } 
} 
} 

私のアダプタクラスです。私はスライドすることができますが、何も表示されません。

これは私が

thingsToFocusArrayList = new ArrayList<>(); 
        thingsToFocusArrayList.add(new POJOThingsToFocus(1,"https://1800hocking.files.wordpress.com/2011/07/hi-ohio-logo.jpg","Hey 1")); 
        thingsToFocusArrayList.add(new POJOThingsToFocus(2,"https://1800hocking.files.wordpress.com/2011/07/hi-ohio-logo.jpg","Hey 2")); 
        thingsToFocusArrayList.add(new POJOThingsToFocus(3,"https://1800hocking.files.wordpress.com/2011/07/hi-ohio-logo.jpg","Hey 3")); 
        thingsToFocusArrayList.add(new POJOThingsToFocus(4,"https://1800hocking.files.wordpress.com/2011/07/hi-ohio-logo.jpg","Hey 4")); 

        viewPager.setAdapter(new CustomPagerAdapter(thingsToFocusArrayList)); 

Answer 1

がちょうど

retrun layout; 

代わりの

retrun container;