ion-picker
A Picker is a dialog that displays a row of buttons and columns underneath. It appears on top of the app's content, and at the bottom of the viewport.
Usage
/* Using with useIonPicker Hook */
import React, { useState } from 'react';
import { IonButton, IonContent, IonPage, useIonPicker } from '@ionic/react';
const PickerExample: React.FC = () => {
  const [present] = useIonPicker();
  const [value, setValue] = useState('');
  return (
    <IonPage>
      <IonContent>
        <IonButton
          expand="block"
          onClick={() =>
            present({
              buttons: [
                {
                  text: 'Confirm',
                  handler: (selected) => {
                    setValue(selected.animal.value);
                  },
                },
              ],
              columns: [
                {
                  name: 'animal',
                  options: [
                    { text: 'Dog', value: 'dog' },
                    { text: 'Cat', value: 'cat' },
                    { text: 'Bird', value: 'bird' },
                  ],
                },
              ],
            })
          }
        >
          Show Picker
        </IonButton>
        <IonButton
          expand="block"
          onClick={() =>
            present(
              [
                {
                  name: 'animal',
                  options: [
                    { text: 'Dog', value: 'dog' },
                    { text: 'Cat', value: 'cat' },
                    { text: 'Bird', value: 'bird' },
                  ],
                },
                {
                  name: 'vehicle',
                  options: [
                    { text: 'Car', value: 'car' },
                    { text: 'Truck', value: 'truck' },
                    { text: 'Bike', value: 'bike' },
                  ],
                },
              ],
              [
                {
                  text: 'Confirm',
                  handler: (selected) => {
                    setValue(`${selected.animal.value}, ${selected.vehicle.value}`);
                  },
                },
              ]
            )
          }
        >
          Show Picker using params
        </IonButton>
        {value && <div>Selected Value: {value}</div>}
      </IonContent>
    </IonPage>
  );
};
Properties
animated
| Description | If true, the picker will animate. | 
| Attribute | animated | 
| Type | boolean | 
| Default | true | 
backdropDismiss
| Description | If true, the picker will be dismissed when the backdrop is clicked. | 
| Attribute | backdrop-dismiss | 
| Type | boolean | 
| Default | true | 
buttons
| Description | Array of buttons to be displayed at the top of the picker. | 
| Attribute | undefined | 
| Type | PickerButton[] | 
| Default | [] | 
columns
| Description | Array of columns to be displayed in the picker. | 
| Attribute | undefined | 
| Type | PickerColumn[] | 
| Default | [] | 
cssClass
| Description | Additional classes to apply for custom CSS. If multiple classes are provided they should be separated by spaces. | 
| Attribute | css-class | 
| Type | string \| string[] \| undefined | 
| Default | undefined | 
duration
| Description | Number of milliseconds to wait before dismissing the picker. | 
| Attribute | duration | 
| Type | number | 
| Default | 0 | 
enterAnimation
| Description | Animation to use when the picker is presented. | 
| Attribute | undefined | 
| Type | ((baseEl: any, opts?: any) => Animation) \| undefined | 
| Default | undefined | 
keyboardClose
| Description | If true, the keyboard will be automatically dismissed when the overlay is presented. | 
| Attribute | keyboard-close | 
| Type | boolean | 
| Default | true | 
leaveAnimation
| Description | Animation to use when the picker is dismissed. | 
| Attribute | undefined | 
| Type | ((baseEl: any, opts?: any) => Animation) \| undefined | 
| Default | undefined | 
mode
| Description | The mode determines which platform styles to use. | 
| Attribute | mode | 
| Type | "ios" \| "md" | 
| Default | undefined | 
showBackdrop
| Description | If true, a backdrop will be displayed behind the picker. | 
| Attribute | show-backdrop | 
| Type | boolean | 
| Default | true | 
Events
| Name | Description | 
|---|---|
| ionPickerDidDismiss | Emitted after the picker has dismissed. | 
| ionPickerDidPresent | Emitted after the picker has presented. | 
| ionPickerWillDismiss | Emitted before the picker has dismissed. | 
| ionPickerWillPresent | Emitted before the picker has presented. | 
Methods
dismiss
| Description | Dismiss the picker overlay after it has been presented. | 
| Signature | dismiss(data?: any, role?: string \| undefined) => Promise<boolean> | 
getColumn
| Description | Get the column that matches the specified name. | 
| Signature | getColumn(name: string) => Promise<PickerColumn \| undefined> | 
onDidDismiss
| Description | Returns a promise that resolves when the picker did dismiss. | 
| Signature | onDidDismiss<T = any>() => Promise<OverlayEventDetail<T>> | 
onWillDismiss
| Description | Returns a promise that resolves when the picker will dismiss. | 
| Signature | onWillDismiss<T = any>() => Promise<OverlayEventDetail<T>> | 
present
| Description | Present the picker overlay after it has been created. | 
| Signature | present() => Promise<void> | 
CSS Custom Properties
| Name | Description | 
|---|---|
| --backdrop-opacity | Opacity of the backdrop | 
| --background | Background of the picker | 
| --background-rgb | Background of the picker in rgb format | 
| --border-color | Border color of the picker | 
| --border-radius | Border radius of the picker | 
| --border-style | Border style of the picker | 
| --border-width | Border width of the picker | 
| --height | Height of the picker | 
| --max-height | Maximum height of the picker | 
| --max-width | Maximum width of the picker | 
| --min-height | Minimum height of the picker | 
| --min-width | Minimum width of the picker | 
| --width | Width of the picker |