android中读取assets中的资料

   private Bitmap getImageFromAssetFile(String fileName){      Bitmap image = null;      try{          AssetManager am = context.getAssets();          InputStream is = am.open(fileName);          image = BitmapFactory.decodeStream(is);          is.close();      }catch(Exception e){                }      return image;  }  

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 InputStream in = getResources().getAssets().open(fileName);