angularjs – 控制isOpen in angular ui bootstrap

发布时间：2020-12-17 17:39:09 所属栏目：安全来源：网络整理

导读：我想在angualr ui bootstrap accordion指令中使用isOpen属性,这样就可以打开手风琴中第一个ng-repeat的第一个元素.我尝试过一些没有运气的事情.任何人都可以就此提出建议吗？ //html div ng-show="accordionCtrl.isNotString(value);" class="accordionConta

我想在angualr ui bootstrap accordion指令中使用isOpen属性,这样就可以打开手风琴中第一个ng-repeat的第一个元素.我尝试过一些没有运气的事情.任何人都可以就此提出建议吗？

//html
          <div ng-show="accordionCtrl.isNotString(value);" class="accordionContainer" ng-repeat="(key,value) in accordionCtrl.lessons">
      <div class="accordionStepBox">
        <h4 class="accordionStepTitle">Step {{$index+1}}: {{value.title}}</h4>
        <span>Summary: {{value.summary}}</span>
      </div>
      <div class="accordionCoursesBox">
        <div class="accordionCoursesText">Courses</div>

        <!-- accordion for suffles -->
        <uib-accordion close-others="accordionCtrl.oneAtATime">
          <!-- only give accordion to object vals -->
          <div class="accordion" ng-show="accordionCtrl.isNotString(value);" ng-repeat="(key,value) in value">
            <!-- <uib-accordion-group heading="{{value.title}}" is-open="accordionCtrl.firstIndex($index)"> -->
            <uib-accordion-group heading="{{value.title}}">
              <div ng-repeat="(key,value) in value">
                <div ng-show="accordionCtrl.isNotString(value);" class="accordionSuffleBox">
                  {{$index+1}}. {{value.title}} 
                </div>
              </div>
              <br/>
              <button ui-sref="lesson" class="btn btn-default accordionbutton">Start</button>
            </uib-accordion-group>
          </div>
        </uib-accordion>
      </div>
    </div>

    //controller
    angular
    .module('neuralquestApp')
    .controller('AccordionCtrl',AccordionCtrl);


  function AccordionCtrl(FirebaseUrl,$firebaSEObject,$firebaseArray) {
    var accordionCtrl = this;
    var getLessons = getLessons;

    accordionCtrl.oneAtATime = true;

    accordionCtrl.init = init;
    accordionCtrl.init();
    accordionCtrl.isNotString = isNotString;
    accordionCtrl.firstIndex = firstIndex;

    /*======================================
    =            IMPLEMENTATION            =
    ======================================*/

    function init() {
      getLessons();
    }

    function firstIndex(index) {
      if(index === 0){
        return true;
      } else {
        return false;
      }
    }

    function getLessons() {
      var ref = new Firebase(FirebaseUrl);
      accordionCtrl.lessons = $firebaSEObject(ref.child('NeuralNetwork'));
    }

    function isNotString(val) {
      // console.log('val',val);
      if(typeof val === "string"){
        console.log('is string',val);
        return false;
      } else {
        return true;
      }
    }

  }

解决方法

is-open属性设置为与控制器进行双向绑定,因此您可以执行以下操作：

<div ng-controller="AccordionDemoCtrl">
  <uib-accordion>
    <div ng-repeat="group in groups">
      <uib-accordion-group heading="{{group.title}}" is-open="openIndex[$index]">
        {{group.content}}
      </uib-accordion-group>
    </div>
  </uib-accordion>
</div>

angular.module('ui.bootstrap.demo').controller('AccordionDemoCtrl',function ($scope) {
  $scope.openIndex = [true];

  $scope.groups = [
    {
      title: 'Group Header - 1',content: 'Group Body - 1'
    },{
      title: 'Group Header - 2',content: 'Group Body - 2'
    },{
      title: 'Group Header - 3',content: 'Group Body - 3'
    },{
      title: 'Group Header - 4',content: 'Group Body - 4'
    }
  ];
});

示例plunk.此外,close-others属性的默认值为true,因此您无需将其显式设置为true.

（编辑：李大同）

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