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有类似的问题并且可能知道如何处理它？我的plnkr！

Angular标签不适用于ng-repeat。似乎Angular无法将来自ng-show的点击和标签值的标签值放在一起。 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（其中一种方法是dcodesmith，这是一个很好的答案）。

使用Controller As语法

如果您希望在视图中定义仅查看变量（，就像您在示例中所做的那样）， 使用Controller As语法。

您将使用此方法获得的一个优点是直接访问定义和修改控制器范围上的变量。在您的情况下，已tab / ng-repeat

的子范围修改了ng-init变量

<强> 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>

<强> 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

Answer 2

首先，我认为你应该在控制器中声明/初始化你的$scope.tab，以及设置所选标签的功能。最佳实践IMO。

注意：采用这种方式也有助于简化测试。

<强> HTML

    <ul>
        <li ng-repeat="item in data">
          <a href="#" ng-click="setTab(item.thingy)">{{item.name}}</a>
        </li>
    </ul>

<强> JS

$scope.tab = 1;

// for the debugging reason. 
$scope.$watch('tab', function (newTab, oldTab) {
    console.log(newTab, oldTab);
});

$scope.setTab = function (pos) {
  $scope.tab = pos;
}

Answer 3

script.js中的修改：

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
    }];

  $scope.details = $scope.data[0];

  $scope.GetDetails = function(obj)
  {
    $scope.details = obj;
  }

}]
);

在HTML中：

<div ng-controller="myCtrl">
        <ul ng-init="tab=1">
            <li ng-repeat="item in data">
              <a href ng-click="GetDetails(item);">{{item.name}}</a>
            </li>
        </ul>
        <div>
          {{details.thingy}} <br/>
          {{details.name}}<br/>
          {{details.title}}<br/>
          {{details.description}}<br/>
          {{details.year}}<br/>
          <img ng-src="{{details.img}}" width="50px"><br>
        </div>
</div>