AngularJS:当多条消息更改消息的 ngModel 时不显示警报 [英] AngularJS: Alerts don't show up when multiple messages change ngModel for message
问题描述
我有一个通知服务,在加载页面和加载控制器时运行良好
I have a notification service which works well for when page is loaded and Controller is loaded
但是当我有不同的按钮调用不同的功能时,它们会改变消息,但不显示警报
But when I have different buttons calling different functions, they change message, but alerts don't show up
这是一个 plunker - http://plnkr.co/edit/YioiJXNkaET6T2mexjCq?p=预览
Here is a plunker for that - http://plnkr.co/edit/YioiJXNkaET6T2mexjCq?p=preview
每当 $scope.message
发生变化时,我需要做什么来更新它?
What is that I need to do to update it whenever $scope.message
changes?
推荐答案
您可以$watch
模型并在模型发生变化时显示警报.http://plnkr.co/edit/fJuP9LWH4MNVV1cQs3ED?p=preview
You could $watch
the model and show the alert when it changes.
http://plnkr.co/edit/fJuP9LWH4MNVV1cQs3ED?p=preview
在指令的链接器函数中:
In linker function of your directive:
link: function(scope, element, attrs) {
scope.$watch('ngModel', function() {
element.show();
$timeout(function(){
//element.empty();
element.hide();
}, 5000);
});
}
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