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javascript-角度转换在2个控制器之间不起作用

2019-10-29 12:33:19 作者：互联网

我想在Angular应用中使用i18n和i10n.

我读到Angular-translate可以帮上忙,但是,它对我不起作用.

在我的index.html中：

    <!DOCTYPE html>
    <html ng-app="eApp">

    <head>
        <meta charset="utf-8" />
        <link rel="stylesheet" type="text/css" href="../common/css/bootstrap.css" />
    <link rel="stylesheet" type="text/css" href="../common/css/style.css" />
    <title></title>
</head>

<body ng-controller="AppCtrl">
     <div id="container" ng-view></div>
    <!--- Libs Js files  --->
    <script type="text/javascript" src="../vendor/angularjs/angular.min.js"></script>
    <script type="text/javascript" src="../vendor/angularjs/angular-route.min.js"></script>
   <script type="text/javascript" src="../vendor/angularjs/angular-translate.min.js"></script>
    </body>
    </html>

在我的eApp.js中：

var eApp = angular.module('elbitApp', ['ngRoute', 'ui.bootstrap', 'config', 'pascalprecht.translate']);

// configure our routes
eApp.config(["$routeProvider",
function ($routeProvider) {
    $routeProvider

    // route for the home page
    .when('/c', {
        templateUrl: 'c/partials/c.html',
        controller: 'CController'
    })

    // route for the about page
    .when('/de', {
        templateUrl: 'd/partials/dE.html',
        controller: 'DEController',
        resolve: {
            data: function (DDataService) {
                return DDataService.loadData().then(function (response) {
                    return response.data;
                });
            }
        }
    })

    // route for the contact page
    .when('/di', {
        templateUrl: 'd/partials/di.html',
        controller: 'DIController',
        resolve: {
            data: function (DDataService) {
                return DDataService.loadData().then(function (response) {
                    return response.data;
                });
            }
        }
    }).otherwise({
        redirectTo: '/di'
    });
}]).config(["$httpProvider",
function ($httpProvider) {
    // Configure the $httpProvider to parse date with date transformer
    $httpProvider.defaults.transformResponse.push(function (responseData) {
        convertDateStringsToDates(responseData);
        return responseData;
        }); 
}]).config(["$translateProvider",
    function ($translateProvider) {
    $translateProvider.translations('en', {
        "TITLE": 'Hello',
        "FOO": 'This is a paragraph.',
        "BUTTON_LANG_EN": 'english',
        "BUTTON_LANG_DE": 'german'
    });
      $translateProvider.translations('de', {
        "TITLE": 'Hallo',
        "FOO": 'Dies ist ein Paragraph.',
        "BUTTON_LANG_EN": 'englisch',
        "BUTTON_LANG_DE": 'deutsch'
      });
    $translateProvider.preferredLanguage('en');
}]);


// main controller that catches resolving issues of the other controllers
eApp.controller('AppCtrl', function ($rootScope) {
$rootScope.$on("$routeChangeError", function (event, current, previous, rejection) {
    alert("Cant resolve the request of the controller "); //TODO: add URL + additional data.
})
});

在此文件中,我定义了我的应用程序,并添加了$translateProvider和两个字典.

之后,我进入了deController.js：

eApp.controller('DispatcherEventsController', ['$scope', '$route', '$translate', 
                    function($scope, $route, $translate){

    var data = $route.current.locals.data;



    $scope.title = $translate.instant("FOO");


    $scope.switchLanguage = function(languageKey){
        $translate.use(languageKey);
    };
}]);

在de.html中,我添加了带有FOO的h1标签,然后单击以更改为德语：

<h1>{{title |translate}}</h1>
<h1 translate="{{title}}"></h1>
<button type="button" id="searchButton" class="btn btn-default" ng-click="switchLanguage('de')">German</button>

我没问题,但是什么也没发生.我希望英文标题将转换为德文标题.

我该怎么做才能使这项工作？

解决方法:

这对我来说很有用.这是jsFiddle DEMO.

在这种情况下,您要将$scope.title与翻译键“ FOO”绑定.

您应该在switchLanguage函数中动态更改$scope.title的值.然后视图将相应地更新.

//default value
$scope.title = $translate.instant("HEADLINE");

$scope.switchLanguage = function(key){
    $translate.use(key);
    $scope.title = $translate.instant("HEADLINE");
}

在我看来,也许使用转换键比合并范围数据绑定更好.您不必手动维护键的值.

<h1>{{'FOO' | translate}}</h1>

根据您提供的错误msg,也许您可以检查控制器中是否存在任何拼写错误语法.

应该

$translate.use(languageKey)

不

$translate.uses(languageKey)

标签：angular-translate,angularjs,javascript,controller
来源： https://codeday.me/bug/20191029/1960169.html