How to use

get

method

in

com.android.volley.toolbox.ImageLoader

 void loadImage(String url, ImageView iv,
         int placeholderDrawable, int errorDrawable) {
  imageLoader.get(url,
   ImageLoader.getImageListener(iv, placeholderDrawable,
    errorDrawable));
 }
}

/**
 * Returns an ImageContainer for the requested URL.
 *
 * The ImageContainer will contain either the specified default bitmap or the loaded bitmap.
 * If the default was returned, the {@link com.android.volley.toolbox.ImageLoader} will be invoked when the
 * request is fulfilled.
 *
 * @param requestUrl The URL of the image to be loaded.
 */
public ImageContainer get(String requestUrl, final ImageListener listener) {
  return get(requestUrl, listener, 0, 0);
}

/**
 * Equivalent to calling {@link #get(String, com.android.volley.toolbox.ImageLoader.ImageListener, int, int, android.widget.ImageView.ScaleType)} with
 * {@code Scaletype == ScaleType.CENTER_INSIDE}.
 */
public ImageContainer get(String requestUrl, ImageListener imageListener,
    int maxWidth, int maxHeight) {
  return get(requestUrl, imageListener, maxWidth, maxHeight, ScaleType.CENTER_INSIDE);
}

  @Override
  protected void convert(BaseAdapterHelper helper, ModuleBean item) {
    //列表底下显示进度
    mAdapter.showIndeterminateProgress(true);
    helper.setText(R.id.text_lv_item_title, item.getModulename())
        .setText(R.id.text_lv_item_description, item.getDescription());
    //setImageUrl(R.id.img_lv_item, item.getImgurl());
    //使用ImageLoader进行加载图片
    ImageView loader_img=helper.getView(R.id.img_lv_item);
    listener=ImageLoader.getImageListener(loader_img,R.drawable.ic_loading,R.drawable.ic_loading);
    imageLoader.get(item.getImgurl(),listener);
  }
};

/**
 * Equivalent to calling {@link #get(String, ImageListener, int, int, ScaleType)} with
 * {@code Scaletype == ScaleType.CENTER_INSIDE}.
 */
public ImageContainer get(String requestUrl, ImageListener imageListener,
    int maxWidth, int maxHeight) {
  return get(requestUrl, imageListener, maxWidth, maxHeight, ScaleType.CENTER_INSIDE);
}

  img_result_network.setVisibility(View.GONE);
  ImageLoader.ImageListener listener=ImageLoader.getImageListener(img_result,R.drawable.ic_loading,R.drawable.ic_loading);
  imageLoader.get("http://interface.zttmall.com//Images//upload//image//20150328//20150328105404_2392.jpg", listener);
  break;
case R.id.btn_image_network:

/**
 * Returns an ImageContainer for the requested URL.
 *
 * The ImageContainer will contain either the specified default bitmap or the loaded bitmap.
 * If the default was returned, the {@link ImageLoader} will be invoked when the
 * request is fulfilled.
 *
 * @param requestUrl The URL of the image to be loaded.
 */
public ImageContainer get(String requestUrl, final ImageListener listener) {
  return get(requestUrl, listener, 0, 0);
}

/**
 * Equivalent to calling {@link #get(String, ImageListener, int, int, ScaleType)} with
 * {@code Scaletype == ScaleType.CENTER_INSIDE}.
 */
public ImageContainer get(String requestUrl, ImageListener imageListener,
    int maxWidth, int maxHeight) {
  return get(requestUrl, imageListener, maxWidth, maxHeight, ScaleType.CENTER_INSIDE);
}

/**
 * Returns an ImageContainer for the requested URL.
 *
 * The ImageContainer will contain either the specified default bitmap or the loaded bitmap.
 * If the default was returned, the {@link ImageLoader} will be invoked when the
 * request is fulfilled.
 *
 * @param requestUrl The URL of the image to be loaded.
 */
public ImageContainer get(String requestUrl, final ImageListener listener) {
  return get(requestUrl, listener, 0, 0);
}

@Test
public void getWithCacheMiss() throws Exception {
  when(mImageCache.getBitmap(anyString())).thenReturn(null);
  ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
  // Ask for the image to be loaded.
  mImageLoader.get("http://foo", listener);
  // Second pass to test deduping logic.
  mImageLoader.get("http://foo", listener);
  // Response callback should be called both times.
  verify(listener, times(2)).onResponse(any(ImageLoader.ImageContainer.class), eq(true));
  // But request should be enqueued only once.
  verify(mRequestQueue, times(1)).add(any(Request.class));
}

@Test
public void getWithCacheMiss() throws Exception {
  when(mImageCache.getBitmap(anyString())).thenReturn(null);
  ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
  // Ask for the image to be loaded.
  mImageLoader.get("http://foo", listener);
  // Second pass to test deduping logic.
  mImageLoader.get("http://foo", listener);
  // Response callback should be called both times.
  verify(listener, times(2)).onResponse(any(ImageLoader.ImageContainer.class), eq(true));
  // But request should be enqueued only once.
  verify(mRequestQueue, times(1)).add(any(Request.class));
}

@Test
public void getWithCacheHit() throws Exception {
  Bitmap bitmap = Bitmap.createBitmap(1, 1, null);
  ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
  when(mImageCache.getBitmap(anyString())).thenReturn(bitmap);
  ImageLoader.ImageContainer ic = mImageLoader.get("http://foo", listener);
  Assert.assertSame(bitmap, ic.getBitmap());
  verify(listener).onResponse(ic, true);
}

@Test
public void getWithCacheHit() throws Exception {
  Bitmap bitmap = Bitmap.createBitmap(1, 1, null);
  ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
  when(mImageCache.getBitmap(anyString())).thenReturn(bitmap);
  ImageLoader.ImageContainer ic = mImageLoader.get("http://foo", listener);
  Assert.assertSame(bitmap, ic.getBitmap());
  verify(listener).onResponse(ic, true);
}

ImageContainer newContainer = mImageLoader.get(mUrl,
    new ImageListener() {
      @Override

ImageContainer newContainer = mImageLoader.get(mUrl,
    new ImageListener() {
      @Override

ImageContainer newContainer = mImageLoader.get(mUrl,
    new ImageListener() {
      @Override

ImageContainer newContainer = mImageLoader.get(mUrl,
    new ImageListener() {
      @Override

/**
 * Equivalent to calling {@link #get(String, ImageListener, int, int, ScaleType)} with
 * {@code Scaletype == ScaleType.CENTER_INSIDE}.
 */
public ImageContainer get(String requestUrl, ImageListener imageListener,
    int maxWidth, int maxHeight) {
  return get(requestUrl, imageListener, maxWidth, maxHeight, ScaleType.CENTER_INSIDE);
}

/**
 * Equivalent to calling  get(String, ImageListener, int, int, ScaleType) with
 * {Scaletype == ScaleType.CENTER_INSIDE}.
 */
public ImageContainer get(String requestUrl, ImageListener imageListener,
    int maxWidth, int maxHeight) {
  return get(requestUrl, imageListener, maxWidth, maxHeight, ScaleType.CENTER_INSIDE);
}

@Test
public void getWithCacheHit() throws Exception {
  Bitmap bitmap = Bitmap.createBitmap(1, 1, null);
  ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);
  when(mImageCache.getBitmap(anyString())).thenReturn(bitmap);
  ImageLoader.ImageContainer ic = mImageLoader.get("http://foo", listener);
  Assert.assertSame(bitmap, ic.getBitmap());
  verify(listener).onResponse(ic, true);
}