image-loading – Tarik Billa

Android Volley ImageLoader – BitmapLruCache parameter?

September 19, 2023 by Tarik

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

Check image is loaded in Image.network widget in flutter

September 15, 2023 by Tarik

You may use the loadingBuilder which is inbuilt feature from flutter for Image.Network I did it as below: Image.network(imageURL,fit: BoxFit.cover, loadingBuilder:(BuildContext context, Widget child,ImageChunkEvent loadingProgress) { if (loadingProgress == null) return child; return Center( child: CircularProgressIndicator( value: loadingProgress.expectedTotalBytes != null ? loadingProgress.cumulativeBytesLoaded / loadingProgress.expectedTotalBytes! : null, ), ); }, ),

Android Picasso – Placeholder and Error image styling

July 28, 2023 by Tarik

You can use a placeholder image by using the *.placeholder(R.drawable.image_name)* in your Picasso call like: Picasso.with(context) .load(imageUrl) .placeholder(R.drawable.image_name) If you want to use a progress bar instead of a placeholder image you can create a callback inside the .into function. Do something similar to the following: in your view: //create the progressBar here and set … Read more

Invalidate cache in Picasso

February 11, 2023 by Tarik

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);

Dynamically Add Images React Webpack

February 3, 2023 by Tarik

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

November 22, 2022 by Tarik

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