I am using the mat-list of angle 2 and could not make clicking the 'down arrow' or 'up arrow' button raise or lower an item in the list. How is this possible?
<mat-list role="list" class="listMinutes">
<mat-list-item role="listitem" class="textListMinute" *ngFor= "let minute of hour.minutes" (click)="clickMinute(hour.hour,minute)">
{{minute}} '
</mat-list-item>
</mat-list>