在Angular中,为了重新加载标题,您可以在登录或任何导航事件中通过订阅路由事件来实现。以下是示例代码:
import { Component } from '@angular/core';
import { Router, NavigationEnd } from '@angular/router';
@Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent {
title = 'My App';
constructor(private router: Router) {}
ngOnInit(): void {
this.router.events.subscribe((event) => {
if (event instanceof NavigationEnd) {
this.updateTitle();
}
});
}
private updateTitle() {
let currentRoute = this.router.routerState.snapshot.root;
while (currentRoute.children[0] !== undefined) {
currentRoute = currentRoute.children[0];
}
if (currentRoute.data.title !== undefined) {
this.title = currentRoute.data.title;
} else {
this.title = 'My App';
}
}
}
import { Component } from '@angular/core';
import { Router } from '@angular/router';
@Component({
selector: 'app-login',
templateUrl: './login.component.html',
styleUrls: ['./login.component.css']
})
export class LoginComponent {
constructor(private router: Router) {}
login() {
// Your login logic here
this.updateTitle('Login');
this.router.navigate(['/home']);
}
private updateTitle(title: string) {
let route = this.router.routerState.snapshot.root;
while (route.children[0] !== undefined) {
route = route.children[0];
}
route.data.title = title;
}
}
在上面的示例代码中,我们首先在app.component.ts中订阅了路由事件,当导航结束时,我们将调用updateTitle()函数。
updateTitle()函数会获取当前路由对象并设置页面标题。如果当前路由没有设置标题,则默认使用“我的应用程序”作为标题。
在登录页面或任何
上一篇:Angular12:当在模态框中添加“编辑表单”时,表格值消失
下一篇:Angular12:ERRORTypeError:Cannotreadpropertiesofundefined(reading'nativeElement')