Verticale glissez/déplacez geste ionique dans les 2

Ionique 2 permet l'utilisation hammerjs bibliothèque pour gérer ses gestes.

Ils ont aussi construit leur propre Geste de classe qui agit efficacement comme un wrapper pour hammerjs: Geste.ts.

De sorte que vous pouvez faire votre propre directive comme:

import {Directive, ElementRef, Input, OnInit, OnDestroy} from 'angular2/core'
import {Gesture} from 'ionic-angular/gestures/gesture'
declare var Hammer: any

/*
  Class for the SwipeVertical directive (attribute (swipe) is only horizontal).

  In order to use it you must add swipe-vertical attribute to the component.
  The directives for binding functions are [swipeUp] and [swipeDown].

  IMPORTANT:
  [swipeUp] and [swipeDown] MUST be added in a component which
  already has "swipe-vertical".
*/

@Directive({
  selector: '[swipe-vertical]' //Attribute selector
})
export class SwipeVertical implements OnInit, OnDestroy {
  @Input('swipeUp') actionUp: any;
  @Input('swipeDown') actionDown: any;

  private el: HTMLElement
  private swipeGesture: Gesture
  private swipeDownGesture: Gesture

  constructor(el: ElementRef) {
    this.el = el.nativeElement
  }

  ngOnInit() {
    this.swipeGesture = new Gesture(this.el, {
      recognizers: [
          [Hammer.Swipe, {direction: Hammer.DIRECTION_VERTICAL}]
      ]
    });
    this.swipeGesture.listen()
    this.swipeGesture.on('swipeup', e => {
        this.actionUp()
    })
    this.swipeGesture.on('swipedown', e => {
        this.actionDown()
    })
  }

  ngOnDestroy() {
    this.swipeGesture.destroy()
  }
}

Ce code permet de faire quelque chose comme ceci:

<div swipe-vertical [swipeUp]="mySwipeUpAction()" [swipeDown]="mySwipeDownAction()">

OriginalL'auteur Zineb Errahmouni