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POOut of memory cache error when accessing inside the app
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copied!<p>I've searched a lot but I did not understand where to is my error. First in my app I am getting images from the web if there is no net I am getting them from created database. I am going to post my ImageLoader class then the memory class then the utils class if there is something wrong please I need some help Thanks in advance.</p> <pre><code>public class ClassImageLoader { ClassMemoryCache memoryCache=new ClassMemoryCache(); ClassFileCache fileCache; private Map<ImageView, String> imageViews=Collections.synchronizedMap(new WeakHashMap<ImageView, String>()); ExecutorService executorService; public ClassImageLoader(Context context){ fileCache=new ClassFileCache(context); executorService=Executors.newFixedThreadPool(5); } final int stub_id=R.drawable.restlogobutton; public void DisplayImage(String url, ImageView imageView) { imageViews.put(imageView, url); Bitmap bitmap=memoryCache.get(url); if(bitmap!=null) imageView.setImageBitmap(bitmap); else { queuePhoto(url, imageView); imageView.setImageResource(stub_id); } } private void queuePhoto(String url, ImageView imageView) { PhotoToLoad p=new PhotoToLoad(url, imageView); executorService.submit(new PhotosLoader(p)); } private Bitmap getBitmap(String url) { File f=fileCache.getFile(url); //from SD cache Bitmap b = decodeFile(f); if(b!=null) return b; //from web try { Bitmap bitmap=null; URL imageUrl = new URL(url); HttpURLConnection conn = (HttpURLConnection)imageUrl.openConnection(); conn.setConnectTimeout(30000); conn.setReadTimeout(30000); conn.setInstanceFollowRedirects(true); InputStream is=conn.getInputStream(); OutputStream os = new FileOutputStream(f); ClassUtils.CopyStream(is, os); os.close(); bitmap = decodeFile(f); return bitmap; } catch (Exception ex){ ex.printStackTrace(); return null; } } //decodes image and scales it to reduce memory consumption private Bitmap decodeFile(File f){ try { //decode image size BitmapFactory.Options o = new BitmapFactory.Options(); o.inJustDecodeBounds = true; BitmapFactory.decodeStream(new FileInputStream(f),null,o); //Find the correct scale value. It should be the power of 2. final int REQUIRED_SIZE=70; int width_tmp=o.outWidth, height_tmp=o.outHeight; int scale=1; while(true){ if(width_tmp/2<REQUIRED_SIZE || height_tmp/2<REQUIRED_SIZE) break; width_tmp/=2; height_tmp/=2; scale*=2; } //decode with inSampleSize BitmapFactory.Options o2 = new BitmapFactory.Options(); o2.inSampleSize=scale; return BitmapFactory.decodeStream(new FileInputStream(f), null, o2); } catch (FileNotFoundException e) {} return null; } //Task for the queue private class PhotoToLoad { public String url; public ImageView imageView; public PhotoToLoad(String u, ImageView i){ url=u; imageView=i; } } class PhotosLoader implements Runnable { PhotoToLoad photoToLoad; PhotosLoader(PhotoToLoad photoToLoad){ this.photoToLoad=photoToLoad; } public void run() { if(imageViewReused(photoToLoad)) return; Bitmap bmp=getBitmap(photoToLoad.url); memoryCache.put(photoToLoad.url, bmp); if(imageViewReused(photoToLoad)) return; BitmapDisplayer bd=new BitmapDisplayer(bmp, photoToLoad); Activity a=(Activity)photoToLoad.imageView.getContext(); a.runOnUiThread(bd); } } boolean imageViewReused(PhotoToLoad photoToLoad){ String tag=imageViews.get(photoToLoad.imageView); if(tag==null || !tag.equals(photoToLoad.url)) return true; return false; } //Used to display bitmap in the UI thread class BitmapDisplayer implements Runnable { Bitmap bitmap; PhotoToLoad photoToLoad; public BitmapDisplayer(Bitmap b, PhotoToLoad p){bitmap=b;photoToLoad=p;} public void run() { if(imageViewReused(photoToLoad)) return; if(bitmap!=null) photoToLoad.imageView.setImageBitmap(bitmap); else photoToLoad.imageView.setImageResource(stub_id); } } public void clearCache() { memoryCache.clear(); fileCache.clear(); } </code></pre> <p>}</p> <pre><code>public class ClassMemoryCache { private Map<String, Bitmap> cache=Collections.synchronizedMap( new LinkedHashMap<String, Bitmap>(10,1.5f,true));//Last argument true for LRU ordering private long size=0;//current allocated size private long limit=1000000;//max memory in bytes public ClassMemoryCache(){ //use 25% of available heap size setLimit(Runtime.getRuntime().maxMemory()/4); } public void setLimit(long new_limit){ limit=new_limit; } public Bitmap get(String id){ if(!cache.containsKey(id)) return null; return cache.get(id); } public void put(String id, Bitmap bitmap){ try{ if(cache.containsKey(id)) size-=getSizeInBytes(cache.get(id)); cache.put(id, bitmap); size+=getSizeInBytes(bitmap); checkSize(); }catch(Throwable th){ th.printStackTrace(); } } private void checkSize() { if(size>limit){ Iterator<Entry<String, Bitmap>> iter=cache.entrySet().iterator();//least recently accessed item will be the first one iterated while(iter.hasNext()){ Entry<String, Bitmap> entry=iter.next(); size-=getSizeInBytes(entry.getValue()); iter.remove(); if(size<=limit) break; } } } public void clear() { cache.clear(); } long getSizeInBytes(Bitmap bitmap) { if(bitmap==null) return 0; return bitmap.getRowBytes() * bitmap.getHeight(); } </code></pre> <p>}</p> <pre><code>public class ClassUtils { public static void CopyStream(InputStream is, OutputStream os) { final int buffer_size=1024; try { byte[] bytes=new byte[buffer_size]; for(;;) { int count=is.read(bytes, 0, buffer_size); if(count==-1) break; os.write(bytes, 0, count); } } catch(Exception ex){} } </code></pre> <p>}</p>

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