我正在试图弄清楚如何正确使用TypeScript的角度$ timeout服务 - 这样当有人点击“登录”按钮时,我可以显示类似于闪屏的行为。< / p>
interface INavigationController {
username: string;
password: string;
loggedIn: boolean;
ready: boolean;
signIn(): void;
signOut(): void;
}
class NavigationController implements INavigationController {
username: string;
password: string;
loggedIn: boolean;
ready: boolean;
static $inject = ['$timeout'];
constructor(private $timeout: ng.ITimeoutService) {
var vm = this;
vm.username = this.username;
vm.password = this.password;
vm.ready = true;
// The line below work just fine from within here - but i want the behavior
// when someone clicks a button, not directly like this.
// Remove vm.ready = true above, before...
//$timeout(function () { vm.ready = true;}, 2200);}
signIn() {
if (!this.username || !this.password) {
alert("You need to frickin enter som details, man!");
} else {
this.ready = false;
this.$timeout(function () {
this.ready = true;
}, 2200);
}
}
我还尝试将invokeApply?:boolean
设置为true:
this.$timeout(function () {
this.ready = true;
}, 2200, true);
- 没有任何成功......
如果console.log(this.ready);
中的this.$timeout(function()...
我会在2200毫秒后显示true
,但似乎$apply()
不适用?
如果有人可以启发我如何正确使用$ timeout和其他类似服务,我将不胜感激 - 最好使用样式指南我的目标是使用“controllerAs with vm” - John Papa < / p>
答案 0 :(得分:6)
this.$timeout(()=> {
this.ready = true;
}, 2200);
如果您使用function(){}模式,则您无权访问this
(this
不是您期望的那种)
答案 1 :(得分:3)
&#39; this&#39;超时内部是超时功能的这个。您需要在外部定义一个变量来引用该范围(通常称为&#39;那个&#39;)并在超时内引用它:
var that = this;
$timeout(function() {
that.value ='eggs';
}, 2200);
答案 2 :(得分:0)
试试这个,交配
var obj = this;
this.$timeout(function () {
obj.ready = true;
}, 2200);