image-loading - w3toppers.com

Load image to a tableView from URL iphone sdk

You can use GCD to load images in background thread, like this: //get a dispatch queue dispatch_queue_t concurrentQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); //this will start the image loading in bg dispatch_async(concurrentQueue, ^{ NSData *image = [[NSData alloc] initWithContentsOfURL:imageURL]; //this will set the image when loading is finished dispatch_async(dispatch_get_main_queue(), ^{ imageView.image = [UIImage imageWithData:image]; }); }); Hi. … Read more

OpenCV Python not opening images with imread()

Probably you have problem with special meaning of \ in text – like \t or \n Use \\ in place of \ imgloc = “F:\\Kyle\\Desktop\\Coinjar\\Test images\\ten.png” or use prefix r” (and it will treat it as raw text without special codes) imgloc = r”F:\Kyle\Desktop\Coinjar\Test images\ten.png” EDIT: Some modules accept even / like in Linux path … Read more

Android Volley ImageLoader – BitmapLruCache parameter?

import android.graphics.Bitmap; import android.support.v4.util.LruCache; public class BitmapLruCache extends LruCache<String, Bitmap> implements ImageCache { public static int getDefaultLruCacheSize() { final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); final int cacheSize = maxMemory / 8; return cacheSize; } public BitmapLruCache() { this(getDefaultLruCacheSize()); } public BitmapLruCache(int sizeInKiloBytes) { super(sizeInKiloBytes); } @Override protected int sizeOf(String key, Bitmap value) { … Read more

Dynamically Add Images React Webpack

Using url-loader, described here (SurviveJS – Loading Images), you can then use in your code : import LogoImg from ‘YOUR_PATH/logo.png’; and <img src={LogoImg}/> Edit: a precision, images are inlined in the js archive with this technique. It can be worthy for small images, but use the technique wisely.

image.onload event and browser cache

As you’re generating the image dynamically, set the onload property before the src. var img = new Image(); img.onload = function () { alert(“image is loaded”); } img.src = “https://stackoverflow.com/questions/12354865/img.jpg”; Fiddle – tested on latest Firefox and Chrome releases. You can also use the answer in this post, which I adapted for a single dynamically … Read more

Invalidate cache in Picasso

In the recent versions of Picasso, there is a new method for invalidate, without any workarounds, so I think that custom PicassoTools class mentioned earlier, is now obsolete in this case Picasso.with(getActivity()).invalidate(file);