ios - UIImagePickercontroller not saving without use button -


i'm using uiimagepickercontroller take picuture , save photo gallery. when launch picker has button photo take , cancel after taking photo shows 2 button retake & use, if use, use button image saving photo album after saving can't go previous page or close picker.

-(void)takepicture:(id)sender{    // create image picker controller  uiimagepickercontroller *imagepicker = [[uiimagepickercontroller alloc] init];   // set source camera  imagepicker.sourcetype =  uiimagepickercontrollersourcetypecamera;   // delegate self  imagepicker.delegate = self;     // show image picker  [self presentmodalviewcontroller:imagepicker animated:yes];   // [self performselector:@selector(ontimer_loadpicture:) withobject:nil afterdelay:0.5];   }    - (void) imagepickercontroller:(uiimagepickercontroller *)picker didfinishpickingmediawithinfo:(nsdictionary *)info  {  // access uncropped image info dictionary  uiimage *image = [info objectforkey:@"uiimagepickercontrolleroriginalimage"];   // save image  uiimagewritetosavedphotosalbum(image, self, @selector(image:didfinishsavingwitherror:contextinfo:), nil);   // uiimagewritetosavedphotosalbum(image, nil, nil, nil);   [picker release];   }    - (void)imagepickercontrollerdidcancel:(uiimagepickercontroller *)picker {  [self dismissmodalviewcontrolleranimated:yes];  }    - (void)image:(uiimage *)image didfinishsavingwitherror:(nserror *)error contextinfo:(void *)contextinfo  {  uialertview *alert;   // unable save image  if (error)  alert = [[uialertview alloc] initwithtitle:@"error"  message:@"unable save image photo album."  delegate:self cancelbuttontitle:@"ok"  otherbuttontitles:nil];  else //  alert = [[uialertview alloc] initwithtitle:@"success"  message:@"image saved photo album."  delegate:self cancelbuttontitle:@"ok"  otherbuttontitles:nil];  [alert show];  [alert release];   [self performselector:@selector(ontimer_loadpicture:) withobject:nil afterdelay:0.5];   }

just dismiss view controller. ,update didfinishpickingmediawithinfo method 

- (void) imagepickercontroller:(uiimagepickercontroller *)picker didfinishpickingmediawithinfo:(nsdictionary *)info      {      // access uncropped image info dictionary      uiimage *image = [info objectforkey:@"uiimagepickercontrolleroriginalimage"];       // save image      uiimagewritetosavedphotosalbum(image, self, @selector(image:didfinishsavingwitherror:contextinfo:), nil);       // uiimagewritetosavedphotosalbum(image, nil, nil, nil);      [picker dismissviewcontrolleranimated:yes completion:null];       }

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