我正在尝试使用ng-switch
组合一种标签式菜单。
我在Ctrl(流)中设置了标签,并将当前选中的标签跟踪为选择:
app.controller("StreamCtrl", function($scope) {
$scope.streams = [{
title: 'latest',
icon: 'time',
data: "Hi, I'm data."
}, {
title: 'popular',
icon: 'fire',
data: "Hi, I'm data too!"
}];
$scope.selection = $scope.streams[0];
$scope.getCurrentStreamIndex = function(){
// Get the index of the current stream given selection
return $scope.streams.indexOf($scope.selection);
};
// Go to a defined stream index
$scope.goToStream = function(index) {
if($scope.streams[index]) {
$scope.selection = $scope.streams[index];
}
};
});
在我看来(index.html),我使用ng-repeat为每个标签创建一个容器:
<section class="streams" ng-controller="StreamCtrl" ng-switch="stream.title == selection.title">
<section class="stream" ng-switch-when="true" ng-repeat="stream in streams">
{{stream.title}}
<div class="loaderContainer"><div class="loader"></div></div>
</section>
</section>
我遇到的问题是我的ng-switch-when语句,因为它不接受表达式。
如果我可以设置ng-switch-when="{{stream.title}}"
,那么我相信我可以使用ng-switch="selection.title"
,一切都会好的。
如何构建ng-switch
表达式以匹配动态生成的列表?
答案 0 :(得分:3)
好的,看看这个,我认为它应该足以让你继续前进:
http://jsbin.com/okukey/1/edit
新的HTML:
<div ng-controller="StreamCtrl">
<section class="streams" ng-repeat="stream in streams">
<section class="stream">
{{stream.title}}
<div class="loaderContainer" ng-show="stream == selection"><div class="loader">SELECTED</div>
</section>
</section>
</div>