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Angular Bootstrap Mobile touch MDB Pro component

Angular mobile touch gestures - Bootstrap 4 & Material Design

Angular Bootstrap mobile gestures are touch-based interactions with mobile devices. Various of different fingers movements indicate particular components responses.

MDB provides you support for most common touch gestures.

Pan gesture
Rotate gesture
Press gesture
Tap gesture
Swipe gesture
Pinch gesture

Carousel with gestures support

Mobile - Material Design for Bootstrap

Click on the button below to launch a live example and see the Carousel with a gestures support in action.

Live preview

To make it work, use the code below together with one of MDB carousels.

Note: Remember to set a corresponding ID in both Carousel and script.


        <mdb-carousel #carousel>
          [ Slides ]
      </mdb-carousel>
      


        import { Component, ViewChild, HostListener } from '@angular/core';

        @Component({
          selector: 'app-root',
          templateUrl: 'app.component.html'
        })

        export class AppComponent {
            @ViewChild('carousel') public el: any;

            @HostListener('swipeleft', ['$event']) public swipePrev(event: any) {
                this.el.previousSlide();
            }

            @HostListener('swiperight', ['$event']) public swipeNext(event: any) {
                this.el.nextSlide();
            }
        }

      

Usage

It’s easy to use, just add global HammerJS config in app.module.ts file:



        import { HammerGestureConfig, HAMMER_GESTURE_CONFIG } from '@angular/platform-browser';
        declare var Hammer: any;

        export class MyHammerConfig extends HammerGestureConfig {
          overrides = <any> {
            'pan': { direction: Hammer.DIRECTION_All },
            'swipe': { direction: Hammer.DIRECTION_VERTICAL },
          };

          buildHammer(element: HTMLElement) {
            const mc = new Hammer(element, {
              touchAction: 'auto',
                  inputClass: Hammer.SUPPORT_POINTER_EVENTS ? Hammer.PointerEventInput : Hammer.TouchInput,
                  recognizers: [
                    [Hammer.Swipe, {
                      direction: Hammer.DIRECTION_HORIZONTAL
                    }]
                  ]
            });
            return mc;
          }
        }

        @NgModule({
          declarations: [
          ...
          ],
          imports: [
          ...
          ],
          providers: [
          ...,
            {
              provide: HAMMER_GESTURE_CONFIG,
              useClass: MyHammerConfig
            }
          ],
        })

      

Also the viewport meta tag is recommended, it gives more control back to the webpage by disabling the doubletap/pinch zoom. More recent browsers which support the touch-action property don’t require this.



        <meta name="viewport" content="user-scalable=no, width=device-width, initial-scale=1, maximum-scale=1">