我的侧边栏导航组件sidebar.component.html是这样的：
<nav class="navbar navbar-expand-lg navbar-dark bg-primary fixed-top" id="sideNav">
<a class="navbar-brand" href="#page-top">
<span class="d-block d-lg-none">Sujoy Debnath</span>
<span class="d-none d-lg-block">
<img class="img-fluid img-profile rounded-circle mx-auto mb-2" src="assets/img/resume.jpg" alt="">
</span>
</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data- target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" routerLink="/about">About</a>
</li>
<li class="nav-item">
<a class="nav-link" routerLink="/experience">Experience</a>
</li>
<li class="nav-item">
<a class="nav-link" routerLink="/education">Education</a>
</li>
</ul>
</div>
</nav>
and the
sidebar.component.ts is like this:
import { Component, OnInit } from '@angular/core';
@Component({
selector: 'app-sidebar',
templateUrl: './sidebar.component.html',
styleUrls: ['./sidebar.component.css']
})
export class SidebarComponent implements OnInit {
constructor() { }
ngOnInit() {
}
}
当我单击“关于”或“体验”时，它会路由到这些组件，因为它们映射在我的app-routing-module.ts
import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';
import { IntroductionComponent } from './introduction/introduction.component';
import { ExperienceComponent } from './experience/experience.component';
import { EducationComponent } from './education/education.component';
const routes: Routes = [
{path: '', redirectTo: '/about', pathMatch: 'full'},
{path: 'about', component: IntroductionComponent},
{path: 'experience', component: ExperienceComponent},
{path: 'education', component: EducationComponent}
];
@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule { }
my app.component.html是这样的。我通过它的选择器调用 sidebar.componentapp-sidebar:
<router-outlet></router-outlet>
<app-sidebar></app-sidebar>
现在如何通过滚动来路由导航，以便当我向下滚动时，它会自动从“关于”向下移动到“体验”到“教育”，或者当我向上滚动时，它会自动从“体验”移动到“教育”到“关于”部分。
我的示例代码已开启
- /page1
- /page2
- /page3
并被激活时滚轮用于向下和向上滚动，可以通过添加其他事件（例如使用向上和向下箭头键）来实现与我所做的相同的事情
在应用程序组件中，我设置了一个用于车轮移动的窗口侦听器，检查车轮是否向上或向下移动，最后但并非最不重要的导航到所需的路线。
constructor(
private router: Router
) { }
@HostListener('window:wheel', ['$event'])
onWheelScroll(evento: WheelEvent) {
// Scroll down
if (evento.deltaY > 0) {
switch (this.router.url) {
case '/page1': {
this.router.navigate(['/page2'])
break
}
case '/page2': {
this.router.navigate(['/page3'])
break
}
case '/page3': {
break
}
}
} else { // Scroll up
switch (this.router.url) {
case '/page1': {
break
}
case '/page2': {
this.router.navigate(['/page1'])
break
}
case '/page3': {
this.router.navigate(['/page2'])
break
}
}
}
}
这只是众多解决方案之一。
如果您希望仅当滚轮在组件内滚动时才发出事件，您也可以这样做：
简介.component.ts
HostListener('wheel', ['$event'])
onWheelScroll(evento: WheelEvent) {
// Scroll up
if (evento.deltaY > 0) {
this.router.navigate(['experience'])
}
}
体验.组件.ts
HostListener('wheel', ['$event'])
onWheelScroll(evento: WheelEvent) {
// Scroll down
if (evento.deltaY > 0) {
this.router.navigate(['education'])
} else { // Scroll up
this.router.navigate(['about'])
}
}
教育.组件.ts
HostListener('wheel', ['$event'])
onWheelScroll(evento: WheelEvent) {
// Scroll up
if (evento.deltaY < 0) {
this.router.navigate(['experience'])
}
}
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