带有 ng-repeat 的 AngularJS 选项卡

Question

我问了这个问题 before并且想知道也许有人遇到过类似的问题并且可能知道如何处理它？我的 plnkr !

Angular 选项卡不适用于 ng-repeat。似乎 Angular 无法将来自单击的选项卡值和来自 ng-show 的选项卡值放在一起。我的代码:

<section ng-app="myApp">
<div ng-controller="myCtrl">
    <ul ng-init="tab=1">
        <li ng-repeat="item in data">
          <a href ng-click="tab = item.thingy">{{item.name}}</a>
        </li>
    </ul>
    <div ng-repeat="item in data" ng-show="tab === item.thingy">
        <img ng-src="{{item.img}}" width="50px"><br>
        {{item.year}}</div>
</div>
</section>

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

app.controller('myCtrl', ['$scope', function($scope) {
  $scope.data = [{
    name: "First",
    title: "oneTitle",
    description: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
    year: "2013",
    img: "http://static.hdw.eweb4.com/media/wp_400/1/5/42735.jpg",
    thingy: 1
  }, {
    name: "third",
    title: "twoTitle",
    description: "Quisque pulvinar libero sed eros ornare",
    year: "2014",
    img: "http://static.hdw.eweb4.com/media/wp_400/1/1/8519.jpg",
    thingy: 2
  }, {
    name: "Second",
    title: "threeTitle",
    description: "Cras accumsan massa vitae tortor vehicula .",
    year: "2015",
    img: "http://static.hdw.eweb4.com/media/wp_400/1/5/43326.jpg",
    thingy: 3
  }, {
    name: "fourth",
    title: "FourTitle",
    description: "Suspendisse vitae mattis magna.",
    year: "2011",
    img: "http://static.hdw.eweb4.com/media/wp_400/1/5/42413.jpg",
    thingy: 4
   }];
}]);

Answer 1

有多种方法可以解决这个问题(一种是 dcodesmith 的最佳答案)。

使用 Controller As语法

如果您希望在 View 上定义仅供查看的变量(就像您在示例中所做的那样)，使用 Controller As语法。

使用此方法的优点之一是可以直接访问在 Controller 范围内定义和修改变量。而在您的情况下， tab 变量已在 ng-repeat/ng-init

的子范围内进行了修改

---

html

<div ng-controller="myCtrl as vm">

    <ul ng-init="vm.tab=1">
        <li ng-repeat="item in vm.data">
          <a href ng-click="vm.tab = item.thingy">{{item.name}}</a>
        </li>
    </ul>

    <div ng-repeat="item in vm.data" ng-show="vm.tab === item.thingy">
        <img ng-src="{{item.img}}" width="50px"><br>
        {{item.year}}</div>
</div>

js

app.controller('myCtrl', ['$scope',
  function($scope) {
    var vm = this;

    vm.data = [{
       name: "First",
       title: "oneTitle",
       description: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
       year: "2013",
       img: "http://static.hdw.eweb4.com/media/wp_400/1/5/42735.jpg",
       thingy: 1
     },
     //...
    ];

  }
]);

http://plnkr.co/edit/1q0AVrcqhIZRjFvVSVIP?p=preview