Android: Camera opens but doesn't save the taken shot, why? -

i trying take picture , save in gallary app. far managed write following piece of code:

public void sendmessages(view view) {         intent intent = new intent(this, messagingadapter.class);         startactivity(intent);     }      public void takepicture(view view) {         intent cameraintent = new intent(mediastore.action_image_capture);         cameraintent.putextra(mediastore.extra_output, getimageuri());         startactivityforresult(cameraintent, take_photo_code);     }       public uri getimageuri() {         picno++;          string storagefolderpath = environment.getexternalstoragedirectory() + "/cameraimages/";         string fullfilename = storagefolderpath + picno + ".jpg";         file newpic = new file(fullfilename);          uri outputfileuri = uri.fromfile(newpic);         return outputfileuri;     }  @override     protected void onactivityresult(int requestcode, int resultcode, intent data) {         if (resultcode == 1)             return;         if (requestcode == 3) {             uri uri = data.getdata();  //you data here         }     } 

it working , there no error. however, doesn't function want.

i testing on nexus-7 (cynongemode) . app opens camera alright. after taking shot, freezes on taken image , gives 3 options (the camera app built-in app):

1. cancel , return camera app, or
2. retake shot, or
3. accept taken image !

now, first 2 options work 3rd option doesn't @ all, freezes shown bellow:

what might problem , why canoot save image ?!

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update

i put simple onactivityresult method. doesn't go there (when debugging). however, when remove cameraintent.putextra line, goes onactivityresult again no saved image !!.

did put permissions manifest.xml?

<uses-permission android:name="android.permission.write_external_storage" />