ion-reorder-group

Contents

• Interfaces
• Usage
• Properties
• Events
• Methods

The reorder group is a wrapper component for items using the ion-reorder component. See the Reorder documentation for further information about the anchor component that is used to drag items within the ion-reorder-group.

Once the user drags an item and drops it in a new position, the ionItemReorder event is dispatched. A handler for it should be implemented that calls the complete() method.

The detail property of the ionItemReorder event includes all of the relevant information about the reorder operation, including the from and to indexes. In the context of reordering, an item moves from an index to a new index.

Interfaces

ItemReorderEventDetail

interface ItemReorderEventDetail {
  from: number;
  to: number;
  complete: (data?: boolean | any[]) => any;
}

ItemReorderCustomEvent

While not required, this interface can be used in place of the CustomEvent interface for stronger typing with Ionic events emitted from this component.

interface ItemReorderCustomEvent extends CustomEvent {
  detail: ItemReorderEventDetail;
  target: HTMLIonReorderGroupElement;
}

Usage

Angular

<!-- The reorder gesture is disabled by default, enable it to drag and drop items -->
<ion-reorder-group (ionItemReorder)="doReorder($event)" disabled="false">
  <!-- Default reorder icon, end aligned items -->
  <ion-item>
    <ion-label>
      Item 1
    </ion-label>
    <ion-reorder slot="end"></ion-reorder>
  </ion-item>

  <ion-item>
    <ion-label>
      Item 2
    </ion-label>
    <ion-reorder slot="end"></ion-reorder>
  </ion-item>

  <!-- Default reorder icon, start aligned items -->
  <ion-item>
    <ion-reorder slot="start"></ion-reorder>
    <ion-label>
      Item 3
    </ion-label>
  </ion-item>

  <ion-item>
    <ion-reorder slot="start"></ion-reorder>
    <ion-label>
      Item 4
    </ion-label>
  </ion-item>

  <!-- Custom reorder icon end items -->
  <ion-item>
    <ion-label>
      Item 5
    </ion-label>
    <ion-reorder slot="end">
      <ion-icon name="pizza"></ion-icon>
    </ion-reorder>
  </ion-item>

  <ion-item>
    <ion-label>
      Item 6
    </ion-label>
    <ion-reorder slot="end">
      <ion-icon name="pizza"></ion-icon>
    </ion-reorder>
  </ion-item>

  <!-- Items wrapped in a reorder, entire item can be dragged -->
  <ion-reorder>
    <ion-item>
      <ion-label>
        Item 7
      </ion-label>
    </ion-item>
  </ion-reorder>

  <ion-reorder>
    <ion-item>
      <ion-label>
        Item 8
      </ion-label>
    </ion-item>
  </ion-reorder>
</ion-reorder-group>

import { Component, ViewChild } from '@angular/core';
import { IonReorderGroup } from '@ionic/angular';
import { ItemReorderEventDetail } from '@ionic/core';

@Component({
  selector: 'reorder-group-example',
  templateUrl: 'reorder-group-example.html',
  styleUrls: ['./reorder-group-example.css']
})
export class ReorderGroupExample {
  @ViewChild(IonReorderGroup) reorderGroup: IonReorderGroup;

  constructor() {}

  doReorder(ev: CustomEvent<ItemReorderEventDetail>) {
    // The `from` and `to` properties contain the index of the item
    // when the drag started and ended, respectively
    console.log('Dragged from index', ev.detail.from, 'to', ev.detail.to);

    // Finish the reorder and position the item in the DOM based on
    // where the gesture ended. This method can also be called directly
    // by the reorder group
    ev.detail.complete();
  }

  toggleReorderGroup() {
    this.reorderGroup.disabled = !this.reorderGroup.disabled;
  }
}

Updating Data

import { Component, ViewChild } from '@angular/core';
import { IonReorderGroup } from '@ionic/angular';
import { ItemReorderEventDetail } from '@ionic/core';

@Component({
  selector: 'reorder-group-example',
  templateUrl: 'reorder-group-example.html',
  styleUrls: ['./reorder-group-example.css']
})
export class ReorderGroupExample {
  items = [1, 2, 3, 4, 5];

  @ViewChild(IonReorderGroup) reorderGroup: IonReorderGroup;

  constructor() {}

  doReorder(ev: CustomEvent<ItemReorderEventDetail>) {
    // Before complete is called with the items they will remain in the
    // order before the drag
    console.log('Before complete', this.items);

    // Finish the reorder and position the item in the DOM based on
    // where the gesture ended. Update the items variable to the
    // new order of items
    this.items = ev.detail.complete(this.items);

    // After complete is called the items will be in the new order
    console.log('After complete', this.items);
  }
}

Javascript

<!-- The reorder gesture is disabled by default, enable it to drag and drop items -->
<ion-reorder-group disabled="false">
  <!-- Default reorder icon, end aligned items -->
  <ion-item>
    <ion-label>
      Item 1
    </ion-label>
    <ion-reorder slot="end"></ion-reorder>
  </ion-item>

  <ion-item>
    <ion-label>
      Item 2
    </ion-label>
    <ion-reorder slot="end"></ion-reorder>
  </ion-item>

  <!-- Default reorder icon, start aligned items -->
  <ion-item>
    <ion-reorder slot="start"></ion-reorder>
    <ion-label>
      Item 3
    </ion-label>
  </ion-item>

  <ion-item>
    <ion-reorder slot="start"></ion-reorder>
    <ion-label>
      Item 4
    </ion-label>
  </ion-item>

  <!-- Custom reorder icon end items -->
  <ion-item>
    <ion-label>
      Item 5
    </ion-label>
    <ion-reorder slot="end">
      <ion-icon name="pizza"></ion-icon>
    </ion-reorder>
  </ion-item>

  <ion-item>
    <ion-label>
      Item 6
    </ion-label>
    <ion-reorder slot="end">
      <ion-icon name="pizza"></ion-icon>
    </ion-reorder>
  </ion-item>

  <!-- Items wrapped in a reorder, entire item can be dragged -->
  <ion-reorder>
    <ion-item>
      <ion-label>
        Item 7
      </ion-label>
    </ion-item>
  </ion-reorder>

  <ion-reorder>
    <ion-item>
      <ion-label>
        Item 8
      </ion-label>
    </ion-item>
  </ion-reorder>
</ion-reorder-group>

const reorderGroup = document.querySelector('ion-reorder-group');

reorderGroup.addEventListener('ionItemReorder', ({detail}) => {
  // The `from` and `to` properties contain the index of the item
  // when the drag started and ended, respectively
  console.log('Dragged from index', detail.from, 'to', detail.to);

  // Finish the reorder and position the item in the DOM based on
  // where the gesture ended. This method can also be called directly
  // by the reorder group
  detail.complete();
});

Updating Data

const items = [1, 2, 3, 4, 5];
const reorderGroup = document.querySelector('ion-reorder-group');

reorderGroup.addEventListener('ionItemReorder', ({detail}) => {
  // Before complete is called with the items they will remain in the
  // order before the drag
  console.log('Before complete', items);

  // Finish the reorder and position the item in the DOM based on
  // where the gesture ended. Update the items variable to the
  // new order of items
  items = detail.complete(items);

  // After complete is called the items will be in the new order
  console.log('After complete', items);
});

React

import React from 'react';
import { IonItem, IonLabel, IonReorder, IonReorderGroup, IonIcon, IonContent } from '@ionic/react';
import { ItemReorderEventDetail } from '@ionic/core';
import { pizza } from 'ionicons/icons';

function doReorder(event: CustomEvent<ItemReorderEventDetail>) {
  // The `from` and `to` properties contain the index of the item
  // when the drag started and ended, respectively
  console.log('Dragged from index', event.detail.from, 'to', event.detail.to);

  // Finish the reorder and position the item in the DOM based on
  // where the gesture ended. This method can also be called directly
  // by the reorder group
  event.detail.complete();
}

export const ReorderGroupExample: React.FC = () => (
  <IonContent>
    {/*-- The reorder gesture is disabled by default, enable it to drag and drop items --*/}
    <IonReorderGroup disabled={false} onIonItemReorder={doReorder}>
      {/*-- Default reorder icon, end aligned items --*/}
      <IonItem>
        <IonLabel>Item 1</IonLabel>
        <IonReorder slot="end" />
      </IonItem>

      <IonItem>
        <IonLabel>Item 2</IonLabel>
        <IonReorder slot="end" />
      </IonItem>

      {/*-- Default reorder icon, start aligned items --*/}
      <IonItem>
        <IonReorder slot="start" />
        <IonLabel>Item 3</IonLabel>
      </IonItem>

      <IonItem>
        <IonReorder slot="start" />
        <IonLabel>Item 4</IonLabel>
      </IonItem>

      {/*-- Custom reorder icon end items --*/}
      <IonItem>
        <IonLabel>Item 5</IonLabel>
        <IonReorder slot="end">
          <IonIcon icon={pizza} />
        </IonReorder>
      </IonItem>

      <IonItem>
        <IonLabel>Item 6</IonLabel>
        <IonReorder slot="end">
          <IonIcon icon={pizza} />
        </IonReorder>
      </IonItem>

      {/*-- Items wrapped in a reorder, entire item can be dragged --*/}
      <IonReorder>
        <IonItem>
          <IonLabel>Item 7</IonLabel>
        </IonItem>
      </IonReorder>

      <IonReorder>
        <IonItem>
          <IonLabel>Item 8</IonLabel>
        </IonItem>
      </IonReorder>
    </IonReorderGroup>
  </IonContent>
);

Updating Data

const items = [1, 2, 3, 4, 5];

function doReorder(event: CustomEvent) {
  // Before complete is called with the items they will remain in the
  // order before the drag
  console.log('Before complete', this.items);

  // Finish the reorder and position the item in the DOM based on
  // where the gesture ended. Update the items variable to the
  // new order of items
  this.items = event.detail.complete(this.items);

  // After complete is called the items will be in the new order
  console.log('After complete', this.items);
}

Stencil

import { Component, h } from '@stencil/core';

@Component({
  tag: 'reorder-group-example',
  styleUrl: 'reorder-group-example.css'
})
export class ReorderGroupExample {
  doReorder(ev: any) {
    // The `from` and `to` properties contain the index of the item
    // when the drag started and ended, respectively
    console.log('Dragged from index', ev.detail.from, 'to', ev.detail.to);

    // Finish the reorder and position the item in the DOM based on
    // where the gesture ended. This method can also be called directly
    // by the reorder group
    ev.detail.complete();
  }

  render() {
    return [
      // The reorder gesture is disabled by default, enable it to drag and drop items
      <ion-reorder-group onIonItemReorder={(ev) => this.doReorder(ev)} disabled={false}>
        {/* Default reorder icon, end aligned items */}
        <ion-item>
          <ion-label>
            Item 1
          </ion-label>
          <ion-reorder slot="end"></ion-reorder>
        </ion-item>

        <ion-item>
          <ion-label>
            Item 2
          </ion-label>
          <ion-reorder slot="end"></ion-reorder>
        </ion-item>

        {/* Default reorder icon, start aligned items */}
        <ion-item>
          <ion-reorder slot="start"></ion-reorder>
          <ion-label>
            Item 3
          </ion-label>
        </ion-item>

        <ion-item>
          <ion-reorder slot="start"></ion-reorder>
          <ion-label>
            Item 4
          </ion-label>
        </ion-item>

        {/* Custom reorder icon end items */}
        <ion-item>
          <ion-label>
            Item 5
          </ion-label>
          <ion-reorder slot="end">
            <ion-icon name="pizza"></ion-icon>
          </ion-reorder>
        </ion-item>

        <ion-item>
          <ion-label>
            Item 6
          </ion-label>
          <ion-reorder slot="end">
            <ion-icon name="pizza"></ion-icon>
          </ion-reorder>
        </ion-item>

        {/* Items wrapped in a reorder, entire item can be dragged */}
        <ion-reorder>
          <ion-item>
            <ion-label>
              Item 7
            </ion-label>
          </ion-item>
        </ion-reorder>

        <ion-reorder>
          <ion-item>
            <ion-label>
              Item 8
            </ion-label>
          </ion-item>
        </ion-reorder>
      </ion-reorder-group>
    ]
  }
}

Updating Data

import { Component, State, h } from '@stencil/core';

@Component({
  tag: 'reorder-group-example',
  styleUrl: 'reorder-group-example.css'
})
export class ReorderGroupExample {
  @State() items = [1, 2, 3, 4, 5];

  doReorder(ev: any) {
    // Before complete is called with the items they will remain in the
    // order before the drag
    console.log('Before complete', this.items);

    // Finish the reorder and position the item in the DOM based on
    // where the gesture ended. Update the items variable to the
    // new order of items
    this.items = ev.detail.complete(this.items);

    // After complete is called the items will be in the new order
    console.log('After complete', this.items);
  }

  render() {
    return [
      // The reorder gesture is disabled by default, enable it to drag and drop items
      <ion-reorder-group onIonItemReorder={(ev) => this.doReorder(ev)} disabled={false}>

        {this.items.map(item =>
          <ion-item>
            <ion-label>
              Item { item }
            </ion-label>
            <ion-reorder slot="end"></ion-reorder>
          </ion-item>
        )}

      </ion-reorder-group>
    ]
  }
}

Vue

<template>
  <!-- The reorder gesture is disabled by default, enable it to drag and drop items -->
  <ion-reorder-group @ionItemReorder="doReorder($event)" disabled="false">
    <!-- Default reorder icon, end aligned items -->
    <ion-item>
      <ion-label>
        Item 1
      </ion-label>
      <ion-reorder slot="end"></ion-reorder>
    </ion-item>

    <ion-item>
      <ion-label>
        Item 2
      </ion-label>
      <ion-reorder slot="end"></ion-reorder>
    </ion-item>

    <!-- Default reorder icon, start aligned items -->
    <ion-item>
      <ion-reorder slot="start"></ion-reorder>
      <ion-label>
        Item 3
      </ion-label>
    </ion-item>

    <ion-item>
      <ion-reorder slot="start"></ion-reorder>
      <ion-label>
        Item 4
      </ion-label>
    </ion-item>

    <!-- Custom reorder icon end items -->
    <ion-item>
      <ion-label>
        Item 5
      </ion-label>
      <ion-reorder slot="end">
        <ion-icon name="pizza"></ion-icon>
      </ion-reorder>
    </ion-item>

    <ion-item>
      <ion-label>
        Item 6
      </ion-label>
      <ion-reorder slot="end">
        <ion-icon name="pizza"></ion-icon>
      </ion-reorder>
    </ion-item>

    <!-- Items wrapped in a reorder, entire item can be dragged -->
    <ion-reorder>
      <ion-item>
        <ion-label>
          Item 7
        </ion-label>
      </ion-item>
    </ion-reorder>

    <ion-reorder>
      <ion-item>
        <ion-label>
          Item 8
        </ion-label>
      </ion-item>
    </ion-reorder>
  </ion-reorder-group>
</template>

<script>
import { 
  IonIcon, 
  IonItem, 
  IonLabel, 
  IonReorder, 
  IonReorderGroup
} from '@ionic/vue';
import { pizza } from 'ionicons/icons';
import { defineComponent } from 'vue';

export default defineComponent({
  components: { 
    IonIcon, 
    IonItem, 
    IonLabel, 
    IonReorder, 
    IonReorderGroup
  },
  setup() {
    const doReorder = (event: CustomEvent) => {
      // The `from` and `to` properties contain the index of the item
      // when the drag started and ended, respectively
      console.log('Dragged from index', event.detail.from, 'to', event.detail.to);

      // Finish the reorder and position the item in the DOM based on
      // where the gesture ended. This method can also be called directly
      // by the reorder group
      event.detail.complete();
    }
    return { doReorder, pizza }
  }
});
</script>

Updating Data

<script>
...
import { defineComponent, ref } from 'vue';

export default defineComponent({
  ...
  setup() {
    const items = ref([1, 2, 3, 4, 5]);

    const doReorder = (event: CustomEvent) => {
      // Before complete is called with the items they will remain in the
      // order before the drag
      console.log('Before complete', items.value);

      // Finish the reorder and position the item in the DOM based on
      // where the gesture ended. Update the items variable to the
      // new order of items
      items.value = event.detail.complete(items.value);

      // After complete is called the items will be in the new order
      console.log('After complete', items.value);
    }
    return { doReorder, items, ... }
  }
});
</script>

Properties

disabled

Description	If true, the reorder will be hidden.
Attribute	disabled
Type	boolean
Default	true

Events

Name	Description
ionItemReorder	Event that needs to be listened to in order to complete the reorder action.

Once the event has been emitted, the complete() method then needs to be called in order to finalize the reorder action. |

Methods

complete

Description

Completes the reorder operation. Must be called by the ionItemReorder event. If a list of items is passed, the list will be reordered and returned in the proper order. If no parameters are passed or if true is passed in, the reorder will complete and the item will remain in the position it was dragged to. If false is passed, the reorder will complete and the item will bounce back to its original position.

Signature

complete(listOrReorder?: boolean ｜ any[] ｜ undefined) => Promise<any>