How to toggle Menu in Ionic 4

Question

I am new to Ionic, and I am developing a basic app in Ionic 4 with sidemenu.

I am adding a button in Side Menu, when I am clicking on t

Answer 1

in your app.component.html:

<ion-app>
  <ion-split-pane when="sm">
      <ion-menu>
        <ion-header>
          <ion-toolbar color="primary" text-center>
            <ion-title>MyApp</ion-title>
          </ion-toolbar>
        </ion-header>
        <ion-content>
          <ion-list>
            <ion-menu-toggle auto-hide="false" *ngFor="let p of pages">
              <ion-item [routerDirection]="'root'" href={{p.url}}>
                <ion-icon slot="start" [name]="p.icon"></ion-icon>
                <ion-label>
                  {{p.title}}
                </ion-label>
              </ion-item>
            </ion-menu-toggle>
          </ion-list>
        </ion-content>
      </ion-menu>
      <ion-router-outlet main></ion-router-outlet>
  </ion-split-pane>
</ion-app>

Answer 2

Simply encapsulate your ion-button within an ion-menu-toggle element, like so:

<ion-menu-toggle>
  <ion-button>Toggle Menu</ion-button>
</ion-menu-toggle>

View the documentation here

EDIT: If you don't want to use ion-menu-toggle, you can do this instead:

In your app.component.ts:

import { MenuController } from '@ionic/angular'; //import MenuController to access toggle() method.

@Component({
  selector: 'app-root',
  templateUrl: 'app.component.html'
})
export class AppComponent {
  constructor(
    public menuCtrl: MenuController
  ) {
    this.initializeApp();
  }

toggleMenu() {
    this.menuCtrl.toggle(); //Add this method to your button click function
  }

}

And in your app.component.html:

<ion-button (click)="toggleMenu()">Toggle Menu</ion-button>

To view all methods, check the docs here.