ui-router deferIntercept 和 state 参数 [英] ui-router deferIntercept and state params

问题描述

我使用 ui-router 的新 deferIntercept() 来更新浏览器 url 而不重新加载我的控制器:

I use the new deferIntercept() of ui-router to update the browser url without reloading my controller:

$rootScope.$on('$locationChangeSuccess', function(e, newUrl, oldUrl) {
  e.preventDefault();
  if ($state.current.name !== 'search') {
    $urlRouter.sync();
  }
  $urlRouter.listen();
});

使用此代码，单击浏览器的后退按钮会将 URL 更改为前一个，但我无法更新控制器状态以反映此更改.$stateParams 仍然包含用户第一次加载页面时设置的值.

With this code, a click on the browser's back button changes the URL to the previous one, but I'm not able to update my controller state to mirror this change. $stateParams still contains the values set when the user first loaded the page.

当用户单击后退按钮或手动更改 URL 时，更新控制器内的 $state 和 $stateParams 对象的最佳方法是什么?

What's the best way to update the $state and $stateParams objects inside my controller when the user click the back button or change the URL manually ?

谢谢！

推荐答案

您对 $urlRouter.listen() 的调用应该放在事件处理程序之外.您提供的代码片段应更改为:

Your call to $urlRouter.listen() should be placed outside the event handler. The code snippet you provided should be changed to:

$rootScope.$on('$locationChangeSuccess', function(e, newUrl, oldUrl) {
  e.preventDefault();
  if ($state.current.name !== 'search') {
    $urlRouter.sync();
  }
});

// Moved out of listener function
$urlRouter.listen();

<小时>

来源:$urlRouter 的官方文档提供了 deferIntercept 方法的代码示例.它将对 $urlRouter.listen() 的调用置于侦听器函数之外:

---

Source: The official documentation for $urlRouter provides a code sample for the deferIntercept method. It places the call to $urlRouter.listen() outside of the listener function:

var app = angular.module('app', ['ui.router.router']);

app.config(function ($urlRouterProvider) {

  // Prevent $urlRouter from automatically intercepting URL changes;
  // this allows you to configure custom behavior in between
  // location changes and route synchronization:
  $urlRouterProvider.deferIntercept();

}).run(function ($rootScope, $urlRouter, UserService) {

  $rootScope.$on('$locationChangeSuccess', function(e) {
    // UserService is an example service for managing user state
    if (UserService.isLoggedIn()) return;

    // Prevent $urlRouter's default handler from firing
    e.preventDefault();

    UserService.handleLogin().then(function() {
      // Once the user has logged in, sync the current URL
      // to the router:
      $urlRouter.sync();
    });
  });

  // Configures $urlRouter's listener *after* your custom listener
  $urlRouter.listen();
});

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