Phonegap save picture on library

gistfile1.txt

        navigator.camera.getPicture(onSuccess, onFail, 
          { quality: 25,
          destinationType : Camera.DestinationType.FILE_URI,
          sourceType : Camera.PictureSourceType.CAMERA, 
          allowEdit : true,
          encodingType: Camera.EncodingType.JPEG,
          //popoverOptions: CameraPopoverOptions,
          saveToPhotoAlbum: true
        }); 

        function onSuccess(imageData) {
             alert($scope.index)
            $scope.$apply(function(){
                
                $scope.index = $scope.index+1 

                $scope.imagens.push({"url":imageData, id: $scope.index, active:false})
            });
            console.log($scope.imagens)
        }

        function onFail(message) {
            alert('Failed because: ' + message);
        }