title: Android ViewPager + ImageLoader
body: <p>I create a ViewPager with ImageLoader library, and i have Error in this code, i don't understand in Log's what he want! In main Layout i have only ViewPager in adapterLayout i have FrameLayout with ImageView</p>
  
  <pre><code>public class ImageGallery extends Activity {
  
      ViewPager pager;
  
      String[] BigImages;
      String[] Authors;
      String[] Dates;
      String[] Descriptions;
  
      DisplayImageOptions options;
  
      @Override
      protected void onCreate(Bundle savedInstanceState){     
          super.onCreate(savedInstanceState);
  
          Bundle bundle = getIntent().getExtras();
          String[] imageUrls = bundle.getStringArray("big_images");
          int pagerPosition = bundle.getInt("position");
  
          options = new DisplayImageOptions.Builder()
              .showImageForEmptyUri(R.drawable.ic_contact_picture_2)
              .resetViewBeforeLoading()
              .cacheOnDisc()
              .imageScaleType(ImageScaleType.IN_SAMPLE_INT)
              .bitmapConfig(Bitmap.Config.RGB_565)
              .displayer(new FadeInBitmapDisplayer(300))
              .build();
  
  
          ViewPager pager = (ViewPager) findViewById(R.id.pager);
          pager.setAdapter(new GalleryImage(ImageGallery.this, imageUrls));
          pager.setCurrentItem(pagerPosition);
  
      }
  
  class GalleryImage extends PagerAdapter{
  
      private String[] images;
      private LayoutInflater inflater;
      ImageLoader imageLoader;
  
      GalleryImage(Context context, String[] images) {
          this.images = images;
          inflater = getLayoutInflater();
          imageLoader = ImageLoader.getInstance();
          imageLoader.init(ImageLoaderConfiguration.createDefault(context));
  
      }
  
      @Override
      public void destroyItem(View container, int position, Object object) {
          ((ViewPager) container).removeView((View) object);
      }
      @Override
      public int getCount() {
          return images.length;
      }
  
      @Override
      public Object instantiateItem(View view, int position) {
          final View imageLayout = inflater.inflate(R.layout.item_gallery, null);
          final ImageView imageView = (ImageView) imageLayout.findViewById(R.id.image);
  
          imageLoader.displayImage(images[position], imageView, options);
  
  
          ((ViewPager) view).addView(imageLayout, 0);
          return imageLayout;
      }
  
      @Override
      public boolean isViewFromObject(View view, Object object) {
          return view.equals(object);
      }
  
  }}
  </code></pre>
  
  <p><strong>Logs</strong></p>
  
  <pre><code>FATAL EXCEPTION: main
  java.lang.RuntimeException: Unable to start activity ComponentInfo{com.gazetaimage/com.gazetaimage.ImageGallery}: java.lang.NullPointerException
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2306)
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2356)
      at android.app.ActivityThread.access$600(ActivityThread.java:150)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1244)
      at android.os.Handler.dispatchMessage(Handler.java:99)
      at android.os.Looper.loop(Looper.java:137)
      at android.app.ActivityThread.main(ActivityThread.java:5193)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:511)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
      at dalvik.system.NativeStart.main(Native Method)
  Caused by: java.lang.NullPointerException
      at com.gazetaimage.ImageGallery.onCreate(ImageGallery.java:49)
      at android.app.Activity.performCreate(Activity.java:5104)
      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2260)
      ... 11 more
  </code></pre>