2

我想为我的内容提出两种布局（即horizontal和vertical）。所以在选择器中切换会自动导致对应的布局。这是JSBin：

<html ng-app="flapperNews">
<head>
    <script src="https://code.jquery.com/jquery.min.js"></script>
    <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.5.7/angular.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.3.2/angular-ui-router.js"></script>
    <script type="text/ng-template" id="horizontal.tpl">
        <textarea ng-model="one"></textarea>, <textarea ng-model="two"></textarea>
        <br><br>{{one}}+{{two}}
    </script>
    <script type="text/ng-template" id="vertical.tpl">
        <textarea ng-model="one"></textarea><br><textarea ng-model="two"></textarea>
        <br><br>{{one}}+{{two}}
    </script>
    <script>
    var app = angular.module('flapperNews', ['ui.router']);

    app.config(['$stateProvider', function ($stateProvider) {
        $stateProvider
            .state('entry', {
                url: '/',
                params: { tpl: 'vertical' },
                templateUrl: function (params) {
                  return params.tpl + ".tpl"
                }
            })
    }]);

    app.controller('MainCtrl', ['$scope', '$state', function ($scope, $state) {
        $scope.one = "one";
        $scope.two = "two";
        $scope.layouts = ["horizontal", "vertical"];
        $scope.$watch('layout', function () {
          $state.go('entry', {tpl: $scope.layout});
        })
    }])
    </script>
</head>

<body ng-controller="MainCtrl">
    <select ng-model="layout" ng-init="layout = 'horizontal' || layouts[0].value" ng-options="x for x in layouts"></select>
    <br><br>
    <ui-view></ui-view>
</body>

</html>

但是，使用上面的代码，每次我们更改视图时，都会$scope.one重置$scope.two为它们的初始值。我希望无论布局如何变化，他们的文本区域的变化都会保持不变。

有谁知道如何解决这个问题？

4

2 回答 2

0

我认为您应该使用 嵌套视图 - 您可以在父路由状态上定义主控制器并定义对应于两个视图的两个嵌套状态。这样父控制器将保留（当子状态切换时它不会重新初始化）并且只会更改嵌套状态视图。像这样的东西：

$stateProvider
  .state('myState', {
    url: '/test/',
    template: '<div ui-view></div>',
    controller: function() {
        //main controller shared by child states
        ...
    }
  })
  .state('myState.view1', {
    url: '/test/view1'
    templateUrl: 'tpl-1.hmtl',
    ...
  })
  .state('myState.view2', {
    url: '/test/view2'
    templateUrl: 'tpl-2.hmtl',
    ...
  })
于 2017-02-19T16:14:02.627 回答
0

factories通过使用（AngularJS 工厂文档）在不同的视图之间轻松共享相同的数据。试试这个例子，它使用一个简单的工厂myFactory来在控制器之间共享数据。这也适用于与您的情况相同的控制器。

var myApp = angular.module("myApp",[ "ui.router"]);

myApp.config(function ($stateProvider, $urlRouterProvider){
    $stateProvider.state("state1", {
        url: "#",
        template: '<p>{{ aValue }}</p><button ng-click="bindValue(\'its me\')">Bind value</button>',
        controller: "myController"
    }).state("state2", {
        url: "#",
        template: '<p>{{ aValue }}</p><button ng-click="bindValue(\'its me\')">Bind value</button>',
        controller: "myController"
    });
});


myApp.controller( "myController", function($scope, myFactory) {
    $scope.aValue = myFactory.myValue;

    $scope.bindValue = function (value) {
        $scope.aValue = value;
        myFactory.myValue = value;
    }
});


myApp.factory('myFactory', function () {
    return {
        myValue: ''
    }
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.8/angular-ui-router.min.js"></script>
<div ng-app="myApp">
    <nav>
        <a ui-sref="state1">State 1</a>
        <a ui-sref="state2">State 2</a>
    </nav>
    <div ui-view></div>
</div>

于 2017-02-19T16:26:34.613 回答