我想在列表中单击添加活动类,我尝试了以下代码,但它在我的所有项目上添加了活动类:/:
HTML:
<div class="filters_ct" ng-controller="selectFilter">
<ul>
<li ng-repeat="filters in filter" ng-click="select(item)" ng-class="{sel: item == selected}">
<span class="filters_ct_status"></span>
{{filters.time}}
</li>
</ul>
</div>
Js:
var filters = [
{
'filterId': 1,
'time': 'last 24 hours',
},
{
'filterId': 2,
'time': 'all',
},
{
'filterId': 3,
'time': 'last hour',
},
{
'filterId': 4,
'time': 'today',
},
{
'filterId': 5,
'time': 'yersteday',
}
];
function selectFilter($scope) {
$scope.items = ['filters'];
$scope.selected = $scope.items[0];
$scope.select= function(item) {
$scope.selected = item;
};
}
请给我一些帮助。
由于
答案 0 :(得分:68)
最好的解决方案是通过角度$index
来定位它,这是数组中的对象索引/位置;
<强> HTML 强>
<div ng-app='app' class="filters_ct" ng-controller="selectFilter">
<ul>
<li ng-repeat="filter in filters" ng-click="select($index)" ng-class="{sel: $index == selected}">
<span class="filters_ct_status"></span>
{{filter.time}}
</li>
</ul>
</div>
<强> JS /控制器强>
var app = angular.module('app', []);
app.controller('selectFilter', function($scope) {
var filters = [
{
'filterId': 1,
'time': 'last 24 hours',
},
{
'filterId': 2,
'time': 'all',
},
{
'filterId': 3,
'time': 'last hour',
},
{
'filterId': 4,
'time': 'today',
},
{
'filterId': 5,
'time': 'yersteday',
}
];
$scope.filters = filters;
$scope.selected = 0;
$scope.select= function(index) {
$scope.selected = index;
};
});
<强> JSFIDDLE 强>
答案 1 :(得分:9)
慢慢回答,这是我得到的(可能会增加一点)
工作演示: http://jsfiddle.net/WVY7L/
<强> TEMPLATE 强>
<ul>
<li ng-repeat="filter in filters"
ng-click="select($index)" ng-class="{active: $index===selectedIndex}">
<span class="filters_ct_status"></span>
{{filter.time}}
</li>
</ul>
<强> CONTROLLER 强>
$scope.filters = [
{ filterId: 1, time: 'last 24 hours'},
{ filterId: 2, time: 'all' },
{ filterId: 3, time: 'last hour'},
{ filterId: 4, time: 'today' },
{ filterId: 5, time: 'yersteday'}
];
$scope.selectedIndex = 0; /* first one set active by default */
$scope.select= function(i) {
$scope.selectedIndex=i;
};
值得一提的是,在数据中你有一个不应该存在的尾随逗号。
{ filterId: 1, time: 'last 24 hours'**,**}
其余的是确保您的控制器传递了数组编号
ng-click="select($index)" ng-class="{active: $index===selectedIndex}"
并且能够保存该数组selectedIndex
以便在您的模板中使用
$scope.selectedIndex
ng-class语法
{active: $index===selectedIndex}
当'$ index'等于'selectedIndex'时,转换为添加名为'active'的类
答案 2 :(得分:2)
我很晚才参加派对,但这是最可重复使用的模式,每次都可以省去重写相同的功能。
<强> HTML:强>
<ul>
<li ng-repeat="item in list" ng-click="setActive(item, list)" ng-class="{active: item.active}"></li>
</ul>
<强> JS:强>
$scope.list = [{}, {}];
$scope.setActive = function(item, list){
list.some(function(item){
if(item.active){
return item.active = false;
}
});
item.active = true;
};
答案 3 :(得分:1)
测试所选项目的ID:
<div class="filters_ct" ng-controller="selectFilter">
<ul>
<li ng-repeat="item in filters" ng-click="select(item)" ng-class="{sel: item.filterId == selected.filterId}">
<span class="filters_ct_status"></span>
{{filters.time}}
</li>
</ul>
</div>
JS:
var filters = [
{
'filterId': 1,
'time': 'last 24 hours',
},
{
'filterId': 2,
'time': 'all',
},
{
'filterId': 3,
'time': 'last hour',
},
{
'filterId': 4,
'time': 'today',
},
{
'filterId': 5,
'time': 'yersteday',
}
];
function selectFilter($scope) {
$scope.filters = filters;
$scope.selected = $scope.items[0];
$scope.select= function(item) {
$scope.selected = item;
};
}