Пример #1
0
 /**
  * 从文件中拿图片
  *
  * @return
  */
 private static Bitmap getBitmapFromFile(Context con, String url, boolean blean) {
   String imageName = "";
   if (!url.startsWith("http")) {
     imageName = url.substring(url.lastIndexOf("/") + 1);
   } else {
     imageName = Utils.getMD5Str(url);
   }
   if (url.contains("ba57b8e1463b63cb01463b7a18eb0083")) {
     MyLogger.commLog().e(imageName);
   }
   Bitmap bitmap = null;
   File file = null;
   String cacheDir = Utils.getCacheDir(con, "picture");
   if (imageName != null) {
     try {
       file = new File(cacheDir, imageName);
       if (file.exists()) {
         // DisplayMetrics dm = context.getResources().getDisplayMetrics();
         // int hh = dm.heightPixels;// 这里设置高度为800f
         // int ww = dm.widthPixels;// 这里设置宽度为480f
         bitmap = decodeSampledBitmapFromFile(cacheDir + "/" + imageName, 100, 100);
       }
     } catch (Exception e) {
       e.printStackTrace();
       bitmap = null;
     }
   }
   if (bitmap != null) {
     addBitmapToMemoryCache(url, bitmap);
     MyLogger.commLog().d(url);
   }
   return bitmap;
 }
Пример #2
0
 @Override
 protected Bitmap doInBackground(String... params) {
   Bitmap data = null;
   if (url != null) {
     try {
       URL c_url = new URL(url);
       String imageName = Utils.getMD5Str(url);
       setBitmapToFile(imageName, c_url.openStream());
     } catch (FileNotFoundException exception) {
       MyLogger.commLog().w("~~~~~~文件不存在~~~~~~~~·" + (url == null ? "" : url));
     } catch (MalformedURLException e) {
       e.printStackTrace();
     } catch (IOException e) {
       e.printStackTrace();
     }
   }
   return data;
 }
Пример #3
0
  private static void createLruCache() {
    if (mMemoryCache != null) {
      return;
    }
    final int maxMemory = (int) (Runtime.getRuntime().maxMemory() / 1024);
    MyLogger.commLog().e("maxMemory = " + maxMemory);
    // Use 1/8th of the available memory for this memory cache.
    final int cacheSize = maxMemory / 16;

    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 getBitmapSize(bitmap) / 1024;
          }
        };
  }