canvas - Android recycled bitmap error -

i'm goning resize bitmap , insert imageview.

however encountered recycle error...

error message :

05-08 13:32:48.948: e/androidruntime(4792): process: com.test.myapp, pid: 4792 05-08 13:32:48.948: e/androidruntime(4792): java.lang.runtimeexception: canvas: trying use recycled bitmap android.graphics.bitmap@2f1aa6ad 05-08 13:32:48.948: e/androidruntime(4792): @ android.graphics.canvas.throwifcannotdraw(canvas.java:1225) 05-08 13:32:48.948: e/androidruntime(4792): @ android.view.gles20canvas.drawbitmap(gles20canvas.java:600) 05-08 13:32:48.948: e/androidruntime(4792): @ android.graphics.drawable.bitmapdrawable.draw(bitmapdrawable.java:544) 05-08 13:32:48.948: e/androidruntime(4792): @ android.widget.imageview.ondraw(imageview.java:1187) 05-08 13:32:48.948: e/androidruntime(4792): @ android.view.view.draw(view.java:16209)

could give advice how resolve situation..

my code :

bitmap photo = bitmapfactory.decodefile(full_path); savebitmaptofilecache(photo, environment.getexternalstoragedirectory().getpath() + "/test/"+filename);  imgview.setimagebitmap(photo);  private bitmap getbitmapsize(bitmap photo){     bytearrayoutputstream os = new bytearrayoutputstream();     bitmap bmp = photo;     bitmap resizebmp = null;     if(bmp.getwidth() > 2000 || bmp.getheight() > 2000)         resizebmp = resizingbitmap(mcontext, bmp, bmp.getwidth()/10 , bmp.getheight()/10, false);     else if(bmp.getwidth() > 1000 || bmp.getheight() > 1000)         resizebmp = resizingbitmap(mcontext, bmp, bmp.getwidth()/5 , bmp.getheight()/5, false);     else         resizebmp = resizingbitmap(mcontext, bmp, bmp.getwidth() , bmp.getheight(), false);      resizebmp.compress(compressformat.png, 90, os);     bmp.recycle();      return resizebmp; }  private void savebitmaptofilecache(bitmap bitmap, string strfilepath) {     file filecacheitem = new file(strfilepath);     outputstream out = null;      try{         filecacheitem.createnewfile();         out = new fileoutputstream(filecacheitem);          bitmap.compress(compressformat.jpeg, 100, out);     }     catch (exception e) {         e.printstacktrace();     }     finally{         try{             out.close();         }         catch (ioexception e){             e.printstacktrace();         }     } } 

why meet recycle error?

to fix outofmemory error, should this:

bitmapfactory.options options = new bitmapfactory.options(); options.insamplesize = 8;  bitmap preview_bitmap = bitmapfactory.decodestream(is, null, options); 

this insamplesize option reduces memory consumption.

here's complete method. first reads image size without decoding content itself. finds best insamplesize value, should power of 2, , image decoded.

// decodes image , scales 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);      // new size want scale     final int required_size=70;      // find correct scale value. should power of 2.     int scale = 1;     while(o.outwidth / scale / 2 >= required_size &&            o.outheight / scale / 2 >= required_size) {         scale *= 2;     }      // decode insamplesize     bitmapfactory.options o2 = new bitmapfactory.options();     o2.insamplesize = scale;     return bitmapfactory.decodestream(new fileinputstream(f), null, o2); } catch (filenotfoundexception e) {} return null; 

}