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我想在页面呈现之前加载gif。为此,我在该组件中声明加载的变量。然后,在http请求完成后(尽快将加载的属性设置为true)隐藏组件。此后加载gif消失和组件显示。我期望第一个加载gif出现,然后是组件。但问题在于,同时加载(隐藏)和组件(隐藏)。我使用低网络速度检查问题,并意识到只有在组件渲染后加载显示。请帮助解决这个尴尬的问题。Angular 4加载程序无法正常工作
HTML文件:
<loaders-css [loader]="'square-spin'" [loaderClass]="'my-loader'"
*ngIf="!loaded"></loaders-css>
<div class="container" *ngIf="loaded">
.....
</div>
将输出文件
@Component({
selector: 'app-user-info',
templateUrl: './user-info.component.html',
styleUrls: ['./user-info.component.scss'],
encapsulation: ViewEncapsulation.None
})
export class UserInfoComponent implements OnInit {
user: any;
baseUrl= globalVars.baseUrl;
token: any;
apps: any;
news: any;
loaded = false;
constructor(private authService: AuthService , private dashboardService:
DashboardService) { }
ngOnInit() {
this.user = JSON.parse(localStorage.getItem('currentUser')).userProfile;
this.authService.getToken().then((token) => {this.token = token});
this.dashboardService.getApplications().then(apps => {
this.apps = apps.data;
});
this.dashboardService.getNews().then(news => {
this.news = news.data;
});
this.loaded = true;
}
}
嗨阿伦。感谢您的回复。但它仍然无法正常工作。问题是加载gif和组件是同时加载的!请看这里的gif。你可以看视频描述情况下面https://gifyu.com/image/zheH –