android-lru-cache

问题 I am trying to use LruCache in android to cache some images, but its not caching here is the code int cacheSize1 = 4 * 1024 * 1024; // 4MiB bitmapCache = new LruCache(cacheSize1) { protected int sizeOf(String key, Bitmap value) { return value.getRowBytes() * value.getHeight(); }}; here its other methods public void addBitmapToMemoryCache(String key, Bitmap bitmap) { if (getBitmapFromMemCache(key) == null) { bitmapCache.put(key, bitmap); } } public Bitmap getBitmapFromMemCache(String key) {

问题 I am trying to use LruCache in android to cache some images, but its not caching here is the code int cacheSize1 = 4 * 1024 * 1024; // 4MiB bitmapCache = new LruCache(cacheSize1) { protected int sizeOf(String key, Bitmap value) { return value.getRowBytes() * value.getHeight(); }}; here its other methods public void addBitmapToMemoryCache(String key, Bitmap bitmap) { if (getBitmapFromMemCache(key) == null) { bitmapCache.put(key, bitmap); } } public Bitmap getBitmapFromMemCache(String key) {

问题 I am trying to use LruCache in android to cache some images, but its not caching here is the code int cacheSize1 = 4 * 1024 * 1024; // 4MiB bitmapCache = new LruCache(cacheSize1) { protected int sizeOf(String key, Bitmap value) { return value.getRowBytes() * value.getHeight(); }}; here its other methods public void addBitmapToMemoryCache(String key, Bitmap bitmap) { if (getBitmapFromMemCache(key) == null) { bitmapCache.put(key, bitmap); } } public Bitmap getBitmapFromMemCache(String key) {

问题 I am trying to use LruCache in android to cache some images, but its not caching here is the code int cacheSize1 = 4 * 1024 * 1024; // 4MiB bitmapCache = new LruCache(cacheSize1) { protected int sizeOf(String key, Bitmap value) { return value.getRowBytes() * value.getHeight(); }}; here its other methods public void addBitmapToMemoryCache(String key, Bitmap bitmap) { if (getBitmapFromMemCache(key) == null) { bitmapCache.put(key, bitmap); } } public Bitmap getBitmapFromMemCache(String key) {

问题 I am trying to use LruCache in android to cache some images, but its not caching here is the code int cacheSize1 = 4 * 1024 * 1024; // 4MiB bitmapCache = new LruCache(cacheSize1) { protected int sizeOf(String key, Bitmap value) { return value.getRowBytes() * value.getHeight(); }}; here its other methods public void addBitmapToMemoryCache(String key, Bitmap bitmap) { if (getBitmapFromMemCache(key) == null) { bitmapCache.put(key, bitmap); } } public Bitmap getBitmapFromMemCache(String key) {

问题 I'm using the SimpleDiskCache code (github link) to cache a few video files to disk for an Android app I'm working. Here's how I put the video file to cache: OutputStream fil = videoCache.openStream(newData.getObjectId().toLowerCase()); fil.write(videoInBytes); fil.flush(); fil.close(); And here's the code where I want to retrieve the video file from cache: InputStream in = videoCache.getInputStream(newData.getObjectId().toLowerCase()).getInputStream(); File videoFile = Utils.createFile(Utils

问题 final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024); final int cacheSize = maxMemory / 8; mMemoryCache = new LruCache<String, Bitmap>(cacheSize) { @Override protected int sizeOf(String key, Bitmap bitmap) { // The cache size will be measured in kilobytes rather than // number of items. return bitmap.getByteCount() / 1024; } }; URL url = new URL("http://s2.goodfon.ru/image/260463-1920x1200.jpg"); Bitmap bitmap = BitmapFactory.decodeStream((InputStream) url.getContent(), null,

问题 I'm using BitmapLRUCache by Trey Robinson for image caching in my Android app. It's an implementation of LRU cache for Volley as it doesn't provide any image caching by itself. Though it does use DiskBasedCache for caching HTTP requests. Now coming to the problem, I get FileNotFoundExceptions repeatedly when DiskBasedCache tries to get or remove cache entries. Sample log below. 23833 Volley D [47291] DiskBasedCache.remove: Could not delete cache entry for key=http://a2.mzstatic.com/us/r30

问题 I am trying to implement to a list view with all contact images with the help of base adapter and LruCache. But on a long scroll on screen all the images(corresponding to that view) are displayed before setting actual image. eg: list view with 5 items per page, if we scrolled from first contact to 60th, on first view of list view images of 1,6,11,16,21..51 are displayed for a few milli seconds before the 55th images is shown Main codes are //Adapter public View getView(int position, View

问题 Initially the objective was to use both disk and memory cache. This would require implementing LRU cache and DiskLruCache. However, since HTTPResponse cache uses disk space, I chose to use LRU cache and do con.setUseCaches(true); The problem is that I don't really understand what gets implemented first. For LRU and DiskLru cache, this is the algorithm: i.e. first check memory cache for an image if there is an image, return it and update caches else check disk cache if disk cache has an image,