Screen detection for a responsive side navigation bar

I'm currently tackling a challenge in an Angular project utilizing the Material Library. My issue lies in implementing a method to open the sidenav. By default, it should use mode="side", but for smaller devices, I need it to stick with mode="over". I have explored suggestions involving Angular Material 2, but it seems that they are no longer functional due to deprecated tags and imports.

sidebar.component.html

<mat-sidenav-container class="sidebar-sidenav-container">
    <mat-sidenav #snav mode="side" fixedTopGap="56" opened="false">
      <app-side-navbar></app-side-navbar>
    </mat-sidenav>
    <mat-sidenav-content class="router-container">
      <router-outlet></router-outlet>
    </mat-sidenav-content>
  </mat-sidenav-container>

I attempted to incorporate old functionalities from Angular Material version 2, however, certain tags and features are no longer compatible.

angulartypescriptangular-material

Answer №1

Utilize the Media Observer to determine the current screen size of the device.

isSmallDevice(): boolean { 
 return this.mediaObserver.isActive('xs') || 
 this.mediaObserver.isActive('sm');
}

Subsequently, incorporate this function to toggle between different modes in your template:

<mat-sidenav #snav [mode]="isSmallDevice() ? 'over' : 'side'" fixedTopGap="56" opened="false">
      <app-side-navbar></app-side-navbar>
</mat-sidenav>

Answer №2

Here is how I tackled the issue at hand.

HTML code snippet:

<mat-sidenav-container class="sidebar-sidenav-container">
    <mat-sidenav #snav [mode]="mode" fixedTopGap="56" opened="false">
      <app-side-navbar></app-side-navbar>
    </mat-sidenav>
    <mat-sidenav-content class="router-container">
      <router-outlet></router-outlet>
    </mat-sidenav-content>
  </mat-sidenav-container>

Typescript class:

mode: any = "side";
  //opened: any = "false";

updateMode() {
    (window.innerWidth <= 850) ? this.mode = "over" : this.mode = "side";
  }

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