angular-google-maps TypeError：$ scope.map.control.refresh不是函数

Question

I integrate angular-google-maps in my cordova mobile application. I want to refresh map using the following function.

        function refreshMap() {
            $scope.map.control.refresh({
                latitude: $scope.location.T_Lat_Deg_W.value,
                longitude: $scope.location.T_Long_Deg_W.value
            })
        }

But error apprears

angular.js:13540 TypeError: $scope.map.control.refresh is not a function

at Scope.refreshMap (mapController.js:122)
at fn (eval at <anonymous> (angular.js:1), <anonymous>:4:224)
at expensiveCheckFn (angular.js:15475)
at callback (angular.js:25008)
at Scope.$eval (angular.js:17219)
at Scope.$apply (angular.js:17319)
at HTMLAnchorElement.<anonymous> (angular.js:25013)
at defaultHandlerWrapper (angular.js:3456)
at HTMLAnchorElement.eventHandler (angular.js:3444)

Here is the JSFiddle example for this problem.

Is there a way to solve this problem ? Thanks !

Answer 1

Actually the key of this problem is that $scope.map.control.refresh should not be used before the map is completely loaded. If the map is initially hide, then I call a function like this

function refreshMap() {
    //show map action
    $scope.map.showMap = true;
    //refresh map action
    $scope.map.control.refresh({latitude: 48,longitude: 2.3});
}

The refreshMap function will call the show map action and refresh map action at the same time. It means that map is not fully loaded when I call the $scope.map.control.refresh function. Thus, it will report the TypeError: $scope.map.control.refresh is not a function .

One method is to use uiGmapIsReady to detect whether the map is ready for usage.

function refreshMap() {
    //show map action
    $scope.map.showMap = true;

    //refresh map action
    uiGmapIsReady.promise()
        .then(function (map_instances) {
            $scope.map.control.refresh({latitude: 48,longitude: 2.3});
        });
}

This JSFiddle use uiGmapIsReady to solve this problem.

The second method is to use $timeout to delay the refresh action.

function refreshMap() {
    //show map action
    $scope.map.showMap = true;

    //delayed refresh map action
    $timeout(function(){
        $scope.map.control.refresh({latitude: 48,longitude: 2.3});
    },3000);
}

This JSFiddle uses $timeout to solve this problem.