angularjs 对话框似乎对我不起作用

Question

我一直在尝试在我的应用程序中实现 AngularJS 对话框，我从 material.angularjs.org 中提供的演示中复制了所有内容，但我似乎无法使其工作。谁能看到我错过了什么？

这是 Javascript 代码：

  // TABLE CONTROLLS GO HERE 
app.controller('AddTableController',['$scope', function($scope,$mdDialog){
        $scope.allTables = tables;
        //method to add tables 
        $scope.showAdvanced= function(ev) {
            $mdDialog.show({
              controller:DialogController,
              templateUrl:'index_directives/dialog-add-table.html',
            })
        };
}]);
//HELPER METHOD FOR THE AddTableController//////////////////////////////
function DialogController($scope, $mdDialog) {
  $scope.hide = function() {
    $mdDialog.hide();
  };
  $scope.cancel = function() {
    $mdDialog.cancel();
  };
  $scope.answer = function(answer) {
    $mdDialog.hide(answer);
  };
}

然后在单击按钮时调用该函数：

<md-button class="md-fab add-button" ng-click="showAlert($event)">+</md-button>

从控制台的错误日志中我得到这样的信息：

TypeError: Cannot read property 'show' of undefined
    at n.app.controller.$scope.showAlert (http://localhost/angular/js/app.js:24:16)
    at ib.functionCall (https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js:199:303)
    at Ec.(anonymous function).compile.d.on.f (https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js:216:74)
    at n.$get.n.$eval (https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js:126:15)
    at n.$get.n.$apply (https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js:126:241)

Answer 1

您忘记定义 $mdDialog 依赖项：

app.controller('AddTableController',['$scope', '$mdDialog', function($scope,$mdDialog){

由于忘记定义依赖项注入很常见，您可能对@Michael Benford 关于 ng-annotate 的感兴趣。

angularjs 对话框似乎对我不起作用

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