How to use com.nostra13.universalimageloader.core.display

/** Creates default implementation of {@link BitmapDisplayer} - {@link SimpleBitmapDisplayer} */
public static BitmapDisplayer createBitmapDisplayer() {
  return new SimpleBitmapDisplayer();
}

  @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);
      }
    }
  }
}

@Override
public void display(Bitmap bitmap, ImageAware imageAware, LoadedFrom loadedFrom) {
  if (!(imageAware instanceof ImageViewAware)) {
    throw new IllegalArgumentException("ImageAware should wrap ImageView. ImageViewAware is expected.");
  }
  imageAware.setImageDrawable(new RoundedDrawable(bitmap, cornerRadius, margin));
}

ImageAdapter(Context context) {
  inflater = LayoutInflater.from(context);
  options = new DisplayImageOptions.Builder()
      .showImageForEmptyUri(R.drawable.ic_empty)
      .showImageOnFail(R.drawable.ic_error)
      .resetViewBeforeLoading(true)
      .cacheOnDisk(true)
      .imageScaleType(ImageScaleType.EXACTLY)
      .bitmapConfig(Bitmap.Config.RGB_565)
      .considerExifParams(true)
      .displayer(new FadeInBitmapDisplayer(300))
      .build();
}

ImageAdapter(Context context) {
  inflater = LayoutInflater.from(context);
  options = new DisplayImageOptions.Builder()
      .showImageOnLoading(R.drawable.ic_stub)
      .showImageForEmptyUri(R.drawable.ic_empty)
      .showImageOnFail(R.drawable.ic_error)
      .cacheInMemory(true)
      .cacheOnDisk(true)
      .considerExifParams(true)
      .bitmapConfig(Bitmap.Config.RGB_565)
      .displayer(new RoundedBitmapDisplayer(20))
      .build();
}

@Override
public void run() {
  if (imageAware.isCollected()) {
    L.d(LOG_TASK_CANCELLED_IMAGEAWARE_COLLECTED, memoryCacheKey);
    listener.onLoadingCancelled(imageUri, imageAware.getWrappedView());
  } else if (isViewWasReused()) {
    L.d(LOG_TASK_CANCELLED_IMAGEAWARE_REUSED, memoryCacheKey);
    listener.onLoadingCancelled(imageUri, imageAware.getWrappedView());
  } else {
    L.d(LOG_DISPLAY_IMAGE_IN_IMAGEAWARE, loadedFrom, memoryCacheKey);
    displayer.display(bitmap, imageAware, loadedFrom);
    engine.cancelDisplayTaskFor(imageAware);
    listener.onLoadingComplete(imageUri, imageAware.getWrappedView(), bitmap);
  }
}

@Override
public void display(Bitmap bitmap, ImageAware imageAware, LoadedFrom loadedFrom) {
  if (!(imageAware instanceof ImageViewAware)) {
    throw new IllegalArgumentException("ImageAware should wrap ImageView. ImageViewAware is expected.");
  }
  imageAware.setImageDrawable(new CircleDrawable(bitmap, strokeColor, strokeWidth));
}

@Override
public void display(Bitmap bitmap, ImageAware imageAware, LoadedFrom loadedFrom) {
  if (!(imageAware instanceof ImageViewAware)) {
    throw new IllegalArgumentException("ImageAware should wrap ImageView. ImageViewAware is expected.");
  }
  imageAware.setImageDrawable(new RoundedVignetteDrawable(bitmap, cornerRadius, margin));
}

  @Override
  protected void onBoundsChange(Rect bounds) {
    super.onBoundsChange(bounds);
    RadialGradient vignette = new RadialGradient(
        mRect.centerX(), mRect.centerY() * 1.0f / 0.7f, mRect.centerX() * 1.3f,
        new int[]{0, 0, 0x7f000000}, new float[]{0.0f, 0.7f, 1.0f},
        Shader.TileMode.CLAMP);
    Matrix oval = new Matrix();
    oval.setScale(1.0f, 0.7f);
    vignette.setLocalMatrix(oval);
    paint.setShader(new ComposeShader(bitmapShader, vignette, PorterDuff.Mode.SRC_OVER));
  }
}

ImageAdapter(Context context) {
  inflater = LayoutInflater.from(context);
  options = new DisplayImageOptions.Builder()
      .showImageOnLoading(R.drawable.ic_stub)
      .showImageForEmptyUri(R.drawable.ic_empty)
      .showImageOnFail(R.drawable.ic_error)
      .cacheInMemory(true)
      .cacheOnDisk(true)
      .considerExifParams(true)
      .displayer(new CircleBitmapDisplayer(Color.WHITE, 5))
      .build();
}

@Override
public void artistInfoSucess(LastfmArtist artist) {
  if (artist != null && itemHolder.artistImage != null) {
    ImageLoader.getInstance().displayImage(artist.mArtwork.get(1).mUrl, itemHolder.artistImage,
        new DisplayImageOptions.Builder().cacheInMemory(true)
            .cacheOnDisk(true)
            .showImageOnFail(R.drawable.ic_empty_music2)
            .resetViewBeforeLoading(true)
            .displayer(new FadeInBitmapDisplayer(400))
            .build());
  }
}

DisplayImageOptions options = new DisplayImageOptions.Builder()
 .showStubImage(R.drawable.stub_image)
 .showImageForEmptyUri(R.drawable.image_for_empty_url)
---->   .resetViewBeforeLoading(true)<----very important for recycling views
 .cacheInMemory()
 .cacheOnDisc()
 .imageScaleType(ImageScaleType.IN_SAMPLE_POWER_OF_2) // default
 .bitmapConfig(Bitmap.Config.ARGB_8888) // default
 .delayBeforeLoading(1000)
 .displayer(new SimpleBitmapDisplayer()) // default
 .build();

@Override
public void display(Bitmap bitmap, ImageAware imageAware, LoadedFrom loadedFrom) {
  imageAware.setImageBitmap(bitmap);
  if ((animateFromNetwork && loadedFrom == LoadedFrom.NETWORK) ||
      (animateFromDisk && loadedFrom == LoadedFrom.DISC_CACHE) ||
      (animateFromMemory && loadedFrom == LoadedFrom.MEMORY_CACHE)) {
    animate(imageAware.getWrappedView(), durationMillis);
  }
}

/**获取配置
 * @param cornerRadiusSize
 * @param defaultImageResId
 * @return
 */
@SuppressWarnings("deprecation")
private static DisplayImageOptions getOption(int cornerRadiusSize, int defaultImageResId) {
  Options options0 = new Options();
  options0.inPreferredConfig = Bitmap.Config.RGB_565;
  DisplayImageOptions.Builder builder = new DisplayImageOptions.Builder();
  if(defaultImageResId > 0) {
    try {
      builder.showImageForEmptyUri(defaultImageResId)
      .showImageOnLoading(defaultImageResId)
      .showImageOnFail(defaultImageResId);
    } catch (Exception e) {
      Log.e(TAG, "getOption  try {builder.showImageForEmptyUri(defaultImageResId) ..." +
          " >> } catch (Exception e) { \n" + e.getMessage());
    }
  }
  if (cornerRadiusSize > 0) {
    builder.displayer(new RoundedBitmapDisplayer(cornerRadiusSize));
  }
  return builder.cacheInMemory(true).cacheOnDisc(true).decodingOptions(options0).build();
}

options.getDisplayer().display(bmp, imageAware, LoadedFrom.MEMORY_CACHE);
listener.onLoadingComplete(uri, imageAware.getWrappedView(), bmp);

  .showImageOnLoading(R.drawable.ic_empty_music2)
  .resetViewBeforeLoading(true)
  .displayer(new FadeInBitmapDisplayer(400))
  .build(), new SimpleImageLoadingListener() {
@Override
  .showImageOnLoading(R.drawable.ic_empty_music2)
  .resetViewBeforeLoading(true)
  .displayer(new FadeInBitmapDisplayer(400))
  .build());

/**
 * Creates default implementation of {@link BitmapDisplayer} - {@link SimpleBitmapDisplayer}
 * 创建图片默认的显示器
 */
public static BitmapDisplayer createBitmapDisplayer() {
  return new SimpleBitmapDisplayer();
}

  .showImageOnLoading(R.drawable.ic_empty_music2)
  .resetViewBeforeLoading(true)
  .displayer(new FadeInBitmapDisplayer(400))
  .build(), new SimpleImageLoadingListener() {
@Override

/** Creates default implementation of {@link BitmapDisplayer} - {@link SimpleBitmapDisplayer} */
public static BitmapDisplayer createBitmapDisplayer() {
  return new SimpleBitmapDisplayer();
}

        .showImageOnFail(R.drawable.ic_empty_music2)
        .resetViewBeforeLoading(true)
        .displayer(new FadeInBitmapDisplayer(400))
        .build());
setOnPopupMenuListener(itemHolder, i);
        .showImageOnFail(R.drawable.ic_empty_music2)
        .resetViewBeforeLoading(true)
        .displayer(new FadeInBitmapDisplayer(400))
        .build());
break;