我有一个角度控制器：
.controller('DashCtrl',function($scope,Auth) {
$scope.login = function() {
Auth.login().then(function(result) {
$scope.userInfo = result;
});
};
});
哪个使用我创建的服务：
.service('Auth',function($window) {
var authContext = $window.Microsoft.ADAL.AuthenticationContext(...);
this.login = function() {
return authContext.acquireTokenAsync(...)
.then(function(authResult) {
return authResult.userInfo;
});
};
});
Auth服务使用的是Cordova插件,该插件位于角度世界之外.我想我不清楚何时你需要使用$scope.$apply来更新你的$scope,当你不需要时.我的错误假设是因为我将逻辑包装到一个角度服务中,然后在这个实例中我不需要它,但除非我将$scope.userInfo =语句包装在$timeout或$scope中,否则什么都不会更新.$apply.
为什么在这种情况下有必要？
解决方法
从
angular’s wiki开始：
AngularJS provides wrappers for common native JS async behaviors:
…
jQuery.ajax() => $http
This is just a traditional async function with a $scope.$apply()
called at the end,to tell AngularJS that an asynchronous event just
occurred.
所以我想因为你的Auth服务不使用angular的$http,$scope.执行Async Auth函数后,$apply()不会被angular调用.
Whenever possible,use AngularJS services instead of native. If you’re
creating an AngularJS service (such as for sockets) it should have a
$scope.$apply() anywhere it fires a callback.
编辑：
在您的情况下,一旦通过换行(如您所做)更新模型,您应该触发digest cycle：
Auth.login().then(function(result) {
$scope.$apply(function(){
$scope.userInfo = result;
});
});
要么
Auth.login().then(function(result) {
$scope.userInfo = result;
$scope.$apply();
});
