Ionic on Hold 指令

Question

我有一个带有收集重复的 div，我在上面应用了 ng-class ng-class="$index%2 == '0' ? 'blue' : 'yellow'"，我还应用了一个离子暂停指令作为 ng-class="{'selected': column.selected}"?我想要选择行时，选择class的红色应该得到applied.The问题是如果我编写第二个ng class，那么第一个ng颜色，但第一个ng- [= = = 17=] 变成 invalid.Is 有办法同时实现这两个

<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 ng-class 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）来分析您想要的条件并返回包含正确 class 名称的字符串（space 分隔）?

这是一个例子：

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);
  }

});

.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>

Ionic on Hold 指令

Ionic on Hold directive

javascript

angularjs

ionic