有人可以为 AngularJS 中的 $controller 服务提供用例吗? [英] Can someone provide a use case for the $controller service in AngularJS?

问题描述

Angularjs 文档给出了 $controller 服务的用法:$controller(constructor, locals);

Angularjs docs give the usage of $controller service as: $controller(constructor, locals);

谁能把重点放在这两点上:

Can anyone focus some light on these 2 points:

1. 何时使用 $controller 服务.请提供一些用例.
2. 有关传递给它的locals"参数的详细信息.

1. When to use $controller service. Please provide some use case.
2. Details about 'locals' parameter passed to it.

推荐答案

您可以将要在 $scope 上执行的通用函数创建到一个名为 'CommonCtrl' 的控制器中.

You can create common functions which are to be executed on $scope into one controller may be named 'CommonCtrl'.

angular.module('app',[]).controller('CommonCtrl', ['$scope', function($scope){
      var self = this;
      $scope.stuff1 = function(){

      }

      $scope.stuff2 = function(){

      }
      self.doCommonStuff = function(){
               // common stuff here
               $scope.stuff1();
               $scope.stuff2();

      };
      return self;
}]);

并在其他控制器中注入这个控制器，比如TestCtrl1"

And inject this controller in other controllers let say 'TestCtrl1' like

angular.module('app',[]).controller('TestCtrl1', ['$scope','$controller', function($scope, $controller){
        var commonCtrl = $controller('CommonCtrl',{$scope: $scope}); // passing current scope to commmon controller
        commonCtrl.doCommonStuff();
}]);

这里，在 $controller 服务的第二个参数中，我们传递的是 CommonCtrl 所需的依赖项.所以 doCommonStuff 方法将使用 TestCtrl1 控制器的作用域.

Here, the in second argument of $controller service, we are passing dependencies that are required by CommonCtrl. So the doCommonStuff method will use TestCtrl1 controller's scope.

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