Get current language with angular-translate

问题:

Is there a way to get the current used language in a controller (without $translateProvider)?

Couldn't find anything in the $translate service.

回答1:

$translate.use() is a getter and setter.

See this demo found in links of docs:

http://jsfiddle.net/PascalPrecht/eUGWJ/7/

回答2:

$translate.use() is the way to go. Also, when an asynchronous loader is executed, you might wanna use $translate.proposedLanguage() which returns the language key of the language that is currently loaded but not finished loaded yet.

回答3:

When using angular-translate-loader-static-files I have noticed that $translate.proposedLanguage() returned undefined when using the default language while $translate.use() always returned the proposed language.

Therefore I fixed it by using:

var currentLang = $translate.proposedLanguage() || $translate.use();

回答4:

$translate.use() seems not to work on initial load of the app, to get last selected language from storage: $translate.storage().get( $translate.storageKey() ) or just $translate.proposedLanguage();

回答5:

The $translate service has a method called preferredLanguage() that return what you want. The return of this function is the string of the language, like 'en'.

Here i wrote you an example:

angular.module('traslateApp').controller('myController', ['$scope', '$translate', function($scope,$translate){
   $scope.changeLanguage = function (langKey) {
      $translate.use(langKey);
   };
   $scope.getCurrentLanguage = function () {
       $translate.preferredLanguage();
   };
}])

回答6:

I think this is the better way to determine the language -

$window.navigator.language || $window.navigator.userLanguage

回答7:

Maybe is not related but could be useful. In angular2+ the way to access to the current language is

...
import { TranslateService } from '@ngx-translate/core';

export class MyComponent implements OnInit {
  constructor(private translate: TranslateService) {}

  ngOnInit() {
   translate.use('it');
   const currentLang = this.translate.currentLang;
  }
 }