Question

我有一个带有集合重复的div，我在其上应用了ng-class ng-class="$index%2 == '0' ? 'blue' : 'yellow'"，我还应用了离子on-hold指令ng-class="{'selected': column.selected}"？我想在选择行时选择红色选择的类应该应用。问题是如果我先写第二个ng类，应用红色但第一个ng-class变得无效。有没有办法实现这两个

<div class="row brd rowclass" collection-repeat="column in tasklist_records track by $index" on-hold="onHoldFlag == true?'':onHold(column,$index)" ng-class="{'selected': column.selected}" ng-class="{white:$index%2 == 0,grey:$index%2 == 1,firstrow:$first}" item-height="50px" ng-click="goToAccountDetailScreen(column,$index)">

Answer 1

在angular.module('ionicApp', ['ionic']) .controller('MyCtrl', function($scope) { console.log("MyCtrl"); $scope.tasklist_records = [{ id: 0, onHoldFlag: false }, { id: 1, onHoldFlag: false }, { id: 2, onHoldFlag: false, selected: true }, { id: 3, onHoldFlag: false }, { id: 4, onHoldFlag: false }, { id: 5, onHoldFlag: false }, { id: 6, onHoldFlag: false }]; $scope.customClass = function(column, $index) { if (!column) return; var _class = ""; if (column.id==0) _class += "firstrow "; if ($index % 2 == 0) _class += "grey "; if ($index % 2 == 1) _class += "white "; if (column.selected) _class += "selected "; console.log("customClass", column,_class); return _class; } $scope.onHold = function(column, $index) { console.log("onHold", column, $index); column.onHoldFlag = !column.onHoldFlag; } $scope.goToAccountDetailScreen = function(column, $index) { console.log("goToAccountDetailScreen", column, $index); } });中，您可以插入任何Angular表达式：为什么不使用函数（在作用域上定义）分析您想要的条件并返回包含正确类名的字符串（空格分隔）？

以下是一个例子：

.selected {
  color: red;
}
.white {
  background-color:white;
}
.grey {
  background-color:grey;
}
.firstrow {
  color: blue;
}

<html ng-app="ionicApp">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
  <title>Ionic List can swipe</title>
  <link href="//code.ionicframework.com/nightly/css/ionic.css" rel="stylesheet">
  <script src="//code.ionicframework.com/nightly/js/ionic.bundle.js"></script>
</head>

<body ng-controller="MyCtrl">
  <ion-header-bar class="bar-positive">
    <h1 class="title">Ionic List</h1>
  </ion-header-bar>

  <ion-content>
    <ion-list>
      <div class="row brd rowclass" collection-repeat="column in tasklist_records track by $index" on-hold="onHoldFlag == true?'':onHold(column,$index)" ng-class="customClass(column, $index)" item-height="50px" ng-click="goToAccountDetailScreen(column,$index)">{{column.id}} - {{column.onHoldFlag}} - {{column.selected}}
      </div>
    </ion-list>
  </ion-content>

</body>

</html>

{{1}}

Ionic on Hold指令

1 个答案: