Question

我在使用ion-tabs的网页上使用$ionicHistory时遇到问题。我用它来导航到上一个视图（使用goBack()）。当我在视图中放置标签时，历史记录是错误的，后视图是之前的两个视图。

为了证明这一点，我创建了一个有4页/视图的演示应用程序（plunker here）。第1页 - ＆gt;第2页 - ＆gt;第3页 - ＆gt;第4页。最后一页有标签。

angular
.module("demoapp", ['ionic'])
.config(['$stateProvider', '$urlRouterProvider',
  function($stateProvider, $urlRouterProvider){
    $stateProvider
        .state('first', {
           url: '/',
           controller: 'firstController',
           templateUrl: 'first.html',
        })
        .state('second', {
           url: '/second',
           controller: 'secondController',
           templateUrl: 'second.html',
        })
        .state('third', {
           url: '/third',
           controller: 'thirdController',
           templateUrl: 'third.html',
        })
        .state('fourth', {
           url: '/fourth',
           controller: 'fourthController',
           templateUrl: 'fourth.html',
        });

    $urlRouterProvider.otherwise("/");
  }])
.factory("historyFactory", ['$ionicHistory', function($ionicHistory){
  var show = function() {
    var text = "";

    var vh = $ionicHistory.viewHistory();
    if(vh !== null) {
      text += "VIEWS=" + JSON.stringify(vh.views);
      text += "BACK=" + JSON.stringify(vh.backView);
    }

    return text;
  }

  return {
    show : show,
  }
}])
.controller("firstController", [
  '$scope',
  '$location', 
  function($scope, $location){
  $scope.next = function() {
    $location.path("/second");
  };
}])
.controller("secondController", [
  '$scope',
  '$location', 
  '$ionicHistory',
  'historyFactory', 
  function($scope, $location, $ionicHistory, historyFactory){
    $scope.next = function() {
      $location.path("/third");
    };

    $scope.prev = function() {
      $ionicHistory.goBack();
    };

    var init = function() {
      $scope.data = historyFactory.show();
    };

    init();
}])
.controller("thirdController", [
  '$scope',
  '$location', 
  '$ionicHistory', 
  'historyFactory', 
  function($scope, $location, $ionicHistory, historyFactory){
    $scope.next = function() {
      $location.path("/fourth");
    };

    $scope.prev = function() {
      $ionicHistory.goBack();
    };

    var init = function() {
      $scope.data = historyFactory.show();
    };

    init();
}])
.controller("fourthController", [
  '$scope',
  '$ionicHistory', 
  'historyFactory', 
  function($scope, $ionicHistory, historyFactory){
    $scope.prev = function() {
      $ionicHistory.goBack();
    };

    var init = function() {
      $scope.data = historyFactory.show();
    };

    init();
}]);

这是带标签的视图的样子：

<ion-view>

  <ion-tabs class="tabs-balanced">
    <ion-tab title="Tab One">
      <ion-header-bar class="bar-balanced">
        <div class="buttons">
          <button class="button button-icon ion-ios-arrow-back" ng-click="prev()"></button>
        </div>
        <h1 class="title">Page 4 - Tab 1</h1>
      </ion-header-bar>

        <ion-content class="has-header">
          <h3>History</h3>
          <p>{{data}}</p>
        </ion-content>
    </ion-tab>    
  </ion-tabs>

</ion-view>

在第二页上，视图历史记录如下所示：

VIEWS=
{"002":{"viewId":"002","index":0,"historyId":"root","backViewId":null,"forwardViewId":"003","stateId":"first","stateName":"first","url":"/"},
 "003":{"viewId":"003","index":1,"historyId":"root","backViewId":"002","forwardViewId":null,"stateId":"second","stateName":"second","url":"/second"}}
BACK=
{"viewId":"002","index":0,"historyId":"root","backViewId":null,"forwardViewId":"003","stateId":"first","stateName":"first","url":"/"}

在第三页上，又添加了一个视图：

VIEWS=
{"002":{"viewId":"002","index":0,"historyId":"root","backViewId":null,"forwardViewId":"003","stateId":"first","stateName":"first","url":"/"},
 "003":{"viewId":"003","index":1,"historyId":"root","backViewId":"002","forwardViewId":"004","stateId":"second","stateName":"second","url":"/second"},
 "004":{"viewId":"004","index":2,"historyId":"root","backViewId":"003","forwardViewId":null,"stateId":"third","stateName":"third","url":"/third"}}
BACK=
{"viewId":"003","index":1,"historyId":"root","backViewId":"002","forwardViewId":"004","stateId":"second","stateName":"second","url":"/second"}

但在第四页上，ion-tabs视图的历史记录保持不变。

VIEWS=
{"002":{"viewId":"002","index":0,"historyId":"root","backViewId":null,"forwardViewId":"003","stateId":"first","stateName":"first","url":"/"},
 "003":{"viewId":"003","index":1,"historyId":"root","backViewId":"002","forwardViewId":"004","stateId":"second","stateName":"second","url":"/second"},
 "004":{"viewId":"004","index":2,"historyId":"root","backViewId":"003","forwardViewId":null,"stateId":"third","stateName":"third","url":"/third"}}
BACK=
{"viewId":"003","index":1,"historyId":"root","backViewId":"002","forwardViewId":"004","stateId":"second","stateName":"second","url":"/second"}

使用$ionicHistory时这是ion-tabs的错误还是我在标签视图中做错了什么？

Answer 1

尝试包装ion-tabs以避免此问题

<ion-view>

  <div>
  <ion-tabs class="tabs-balanced">
    <ion-tab title="Tab One">
      <ion-header-bar class="bar-balanced">
        <div class="buttons">
          <button class="button button-icon ion-ios-arrow-back" ng-click="prev()"></button>
        </div>
        <h1 class="title">Page 4 - Tab 1</h1>
      </ion-header-bar>

        <ion-content class="has-header">
          <h3>History</h3>
          <p>{{data}}</p>
        </ion-content>
    </ion-tab>

    <ion-tab title="Tab Two">
      <ion-header-bar class="bar-balanced">
        <div class="buttons">
          <button class="button button-icon ion-ios-arrow-back" ng-click="prev()"></button>
        </div>
        <h1 class="title">Page 4 - Tab 2</h1>
      </ion-header-bar>

        <ion-content class="has-header">
          <p>Content of tab 2.</p>
        </ion-content>
    </ion-tab>

  </ion-tabs>
  </div>

</ion-view>

http://plnkr.co/edit/pVDu9e7QZHzMt3A154i7?p=preview

Answer 2

ion-tabs引入并行堆栈以维护每个选项卡的历史记录，因此$ionicHistory.goBack更改当前堆栈中的历史状态。您可以通过删除选项卡或向所有视图添加选项卡来解决您的问题。在这篇SO帖子中有一个很好的解释：https://stackoverflow.com/a/31385026/3878940

Answer 3

对我来说有用的是在页面顶部的离子标签上面添加一个空的离子视图。

我想这'欺骗'$ ionicHistory相信我的页面呈现的是常规视图而不是标签视图。

$ ionicHistory不适用于ion-tabs

3 个答案: