- Common ways to obtain ImageLoader
private void myMethod () {ImageLoader i =
RequestQueue queue;ImageLoader.ImageCache imageCache;new ImageLoader(queue, imageCache)
- Smart code suggestions by Codota
}
void loadImage(String url, ImageView iv, int placeholderDrawable, int errorDrawable) { imageLoader.get(url, ImageLoader.getImageListener(iv, placeholderDrawable, errorDrawable)); } }
@Before public void setUp() { mRequestQueue = mock(RequestQueue.class); mImageCache = mock(ImageLoader.ImageCache.class); mImageLoader = new ImageLoader(mRequestQueue, mImageCache); }
/** * Checks if the item is available in the cache. * @param requestUrl The url of the remote image * @param maxWidth The maximum width of the returned image. * @param maxHeight The maximum height of the returned image. * @return True if the item exists in cache, false otherwise. */ public boolean isCached(String requestUrl, int maxWidth, int maxHeight) { return isCached(requestUrl, maxWidth, maxHeight, ScaleType.CENTER_INSIDE); }
/** * Checks if the item is available in the cache. * * @param requestUrl The url of the remote image * @param maxWidth The maximum width of the returned image. * @param maxHeight The maximum height of the returned image. * @param scaleType The scaleType of the imageView. * @return True if the item exists in cache, false otherwise. */ public boolean isCached(String requestUrl, int maxWidth, int maxHeight, ScaleType scaleType) { throwIfNotOnMainThread(); String cacheKey = getCacheKey(requestUrl, maxWidth, maxHeight, scaleType); return mCache.getBitmap(cacheKey) != null; }
throwIfNotOnMainThread(); final String cacheKey = getCacheKey(requestUrl, maxWidth, maxHeight, scaleType); Request<Bitmap> newRequest = makeImageRequest(requestUrl, maxWidth, maxHeight, scaleType, cacheKey);
case R.id.btn_image_loader: ImageLoader imageLoader=new ImageLoader(requestQueue, new Fdv_ImageCache()); tv_result.setVisibility(View.GONE); img_result.setVisibility(View.VISIBLE); 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: ImageLoader network_imageLoader=new ImageLoader(requestQueue, new Fdv_ImageCache()); img_result.setVisibility(View.GONE); tv_result.setVisibility(View.GONE);
/** * 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); }
@Override public void onErrorResponse(VolleyError error) { onGetImageError(cacheKey, error); } });
/** * Handler for when an image failed to load. * @param cacheKey The cache key that is associated with the image request. */ protected void onGetImageError(String cacheKey, VolleyError error) { // Notify the requesters that something failed via a null result. // Remove this request from the list of in-flight requests. BatchedImageRequest request = mInFlightRequests.remove(cacheKey); if (request != null) { // Set the error for this request request.setError(error); // Send the batched response batchResponse(cacheKey, request); } }
@Override public void onResponse(Bitmap response) { onGetImageSuccess(cacheKey, response); } }, maxWidth, maxHeight, scaleType, Config.RGB_565, new ErrorListener() {
@Test public void publicMethods() throws Exception { // Catch API breaking changes. ImageLoader.getImageListener(null, -1, -1); mImageLoader.setBatchedResponseDelay(1000); assertNotNull(ImageLoader.class.getConstructor(RequestQueue.class, ImageLoader.ImageCache.class)); assertNotNull(ImageLoader.class.getMethod("getImageListener", ImageView.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class, ImageView.ScaleType.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class, int.class, int.class, ImageView.ScaleType.class)); assertNotNull(ImageLoader.class.getMethod("setBatchedResponseDelay", int.class)); assertNotNull(ImageLoader.ImageListener.class.getMethod("onResponse", ImageLoader.ImageContainer.class, boolean.class)); } }
throwIfNotOnMainThread(); final String cacheKey = getCacheKey(requestUrl, maxWidth, maxHeight, scaleType); Request<Bitmap> newRequest = makeImageRequest(requestUrl, maxWidth, maxHeight, scaleType, cacheKey);
/** * 增加缓存加载图片 * @param url */ private void loadImageWithCache(String url){ ImageLoader imageLoader = new ImageLoader(MyApplication.getHttpRequestQueue(), new BitmapCache()); ImageLoader.ImageListener listener = imageLoader.getImageListener(mImageView, R.drawable.ic_launcher, R.drawable.ic_launcher); imageLoader.get(url, listener); } }
/** * 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); }
/** * Checks if the item is available in the cache. * * @param requestUrl The url of the remote image * @param maxWidth The maximum width of the returned image. * @param maxHeight The maximum height of the returned image. * @param scaleType The scaleType of the imageView. * @return True if the item exists in cache, false otherwise. */ public boolean isCached(String requestUrl, int maxWidth, int maxHeight, ScaleType scaleType) { throwIfNotOnMainThread(); String cacheKey = getCacheKey(requestUrl, maxWidth, maxHeight, scaleType); return mCache.getBitmap(cacheKey) != null; }
@Override public void onErrorResponse(VolleyError error) { onGetImageError(cacheKey, error); } });
/** * Handler for when an image failed to load. * @param cacheKey The cache key that is associated with the image request. */ protected void onGetImageError(String cacheKey, VolleyError error) { // Notify the requesters that something failed via a null result. // Remove this request from the list of in-flight requests. BatchedImageRequest request = mInFlightRequests.remove(cacheKey); if (request != null) { // Set the error for this request request.setError(error); // Send the batched response batchResponse(cacheKey, request); } }
@Override public void onResponse(Bitmap response) { onGetImageSuccess(cacheKey, response); } }, maxWidth, maxHeight, scaleType, Config.RGB_565, new ErrorListener() {
@Test public void publicMethods() throws Exception { // Catch API breaking changes. ImageLoader.getImageListener(null, -1, -1); mImageLoader.setBatchedResponseDelay(1000); assertNotNull(ImageLoader.class.getConstructor(RequestQueue.class, ImageLoader.ImageCache.class)); assertNotNull(ImageLoader.class.getMethod("getImageListener", ImageView.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class, ImageView.ScaleType.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class, int.class, int.class)); assertNotNull(ImageLoader.class.getMethod("get", String.class, ImageLoader.ImageListener.class, int.class, int.class, ImageView.ScaleType.class)); assertNotNull(ImageLoader.class.getMethod("setBatchedResponseDelay", int.class)); assertNotNull(ImageLoader.ImageListener.class.getMethod("onResponse", ImageLoader.ImageContainer.class, boolean.class)); } }
throwIfNotOnMainThread(); final String cacheKey = getCacheKey(requestUrl, maxWidth, maxHeight, scaleType); Request<Bitmap> newRequest = makeImageRequest(requestUrl, maxWidth, maxHeight, scaleType, cacheKey);