[android] shranjevanje slik

Imam sicer sledočo napako pri shranjevanju slik imam za shranjevanje dol sledečo kodo, tukaj pa napake, če ima kdo kako idejo, mi sporoči..

09-06 12:17:20.918: D/dalvikvm(2919): WAIT_FOR_CONCURRENT_GC blocked 77ms
09-06 12:17:21.937: I/Choreographer(2919): Skipped 30 frames!  The application may be doing too much work on its main thread.
09-06 12:17:29.257: I/Choreographer(2919): Skipped 195 frames!  The application may be doing too much work on its main thread.
09-06 12:17:32.007: I/Choreographer(2919): Skipped 30 frames!  The application may be doing too much work on its main thread.
09-06 12:17:38.038: E/Panel(2919): FileNotFoundException
09-06 12:17:38.038: E/Panel(2919): java.io.FileNotFoundException: /2012Sep06121737.9.png: open failed: EROFS (Read-only file system)
09-06 12:17:38.038: E/Panel(2919): 	at libcore.io.IoBridge.open(IoBridge.java:416)
09-06 12:17:38.038: E/Panel(2919): 	at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
09-06 12:17:38.038: E/Panel(2919): 	at java.io.FileOutputStream.<init>(FileOutputStream.java:73)
09-06 12:17:38.038: E/Panel(2919): 	at somitsolutions.training.android.androidpaint.AndroidPaint.onOptionsItemSelected(AndroidPaint.java:387)
09-06 12:17:38.038: E/Panel(2919): 	at android.app.Activity.onMenuItemSelected(Activity.java:2534)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.policy.impl.PhoneWindow.onMenuItemSelected(PhoneWindow.java:958)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:735)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:149)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:874)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.view.menu.IconMenuView.invokeItem(IconMenuView.java:468)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.view.menu.IconMenuItemView.performClick(IconMenuItemView.java:126)
09-06 12:17:38.038: E/Panel(2919): 	at android.view.View$PerformClick.run(View.java:16966)
09-06 12:17:38.038: E/Panel(2919): 	at android.os.Handler.handleCallback(Handler.java:615)
09-06 12:17:38.038: E/Panel(2919): 	at android.os.Handler.dispatchMessage(Handler.java:92)
09-06 12:17:38.038: E/Panel(2919): 	at android.os.Looper.loop(Looper.java:137)
09-06 12:17:38.038: E/Panel(2919): 	at android.app.ActivityThread.main(ActivityThread.java:4745)
09-06 12:17:38.038: E/Panel(2919): 	at java.lang.reflect.Method.invokeNative(Native Method)
09-06 12:17:38.038: E/Panel(2919): 	at java.lang.reflect.Method.invoke(Method.java:511)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
09-06 12:17:38.038: E/Panel(2919): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
09-06 12:17:38.038: E/Panel(2919): 	at dalvik.system.NativeStart.main(Native Method)
09-06 12:17:38.038: E/Panel(2919): Caused by: libcore.io.ErrnoException: open failed: EROFS (Read-only file system)
09-06 12:17:38.038: E/Panel(2919): 	at libcore.io.Posix.open(Native Method)
09-06 12:17:38.038: E/Panel(2919): 	at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
09-06 12:17:38.038: E/Panel(2919): 	at libcore.io.IoBridge.open(IoBridge.java:400)
09-06 12:17:38.038: E/Panel(2919): 	... 20 more

  case R.id.itemSaveImage:
    	
    	 Calendar currentDate = Calendar.getInstance();
    	  SimpleDateFormat formatter= new SimpleDateFormat("yyyyMMMddHmmss");
    	  String dateNow = formatter.format(currentDate.getTime());
    	  file = new File( "/" + dateNow +".9.png");
    	  FileOutputStream fos;
    	  try {
            fos = new FileOutputStream(file);
            wallPaperBitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
            fos.close();
    	  } catch (FileNotFoundException e) {
            Log.e("Panel", "FileNotFoundException", e);
    	  } 
    	  catch (IOException e) {
            Log.e("Panel", "IOEception", e);
        }
    }
   
	return false;
} 

more bit še write ane..

oz kaka druga ideja..