ion-picker
A Picker displays one or more columns with options for users to choose from.
Prefix & Suffix Content
Use the prefix and suffix slots to add additional content to the picker.
Theming
CSS Variables
The picker highlight and fade can be customized using CSS variables on ion-picker. Developers can customize the individual appearance of ion-picker-column-options by targeting them directly and using host level styling.
Picker in Modal
Pickers can be displayed inside of overlays, such as ion-modal to create a picker experience with confirmation or cancellation buttons.
ConsoleConsole messages will appear here when logged from the example above.Accessibility
Screen Readers
Picker supports navigation using a screen reader by implementing the slider role on each Picker Column. The following gestures can be used to navigate the Picker.
| Gesture | Function |
|---|---|
| Swipe Left | Move focus to the previous Picker Column. |
| Swipe Right | Move focus to the next Picker Column. |
| Swipe Up | Select the next option in the Picker Column. |
| Swipe Down | Select the previous option in the Picker Column. |
| Double Tap and Slide Up/Down | Adjust the selected option in the Picker Column. Can be used as an alternative to swiping up and down. |
The Swipe Up and Swipe Down gestures rely on the correct key events being synthesized as noted on the slider documentation. Chromium-based browsers do not synthesize keyboard events correctly, but the "Double Tap and Slide Up/Down" gesture can be used as an alternative until this has been implemented in Chromium-based browsers.
Keyboard Interactions
Each Picker Column can be navigated using the keyboard when focused.
| Key | Description |
|---|---|
| ArrowUp | Scroll to the previous option. |
| ArrowDown | Scroll to the next option. |
| PageUp | Scroll up by more than one option. |
| PageDown | Scroll down by more than one option. |
| Home | Scroll to the first option. |
| End | Scroll to the last option. |
Properties
mode
| Description | modeは、どのプラットフォームのスタイルを使用するかを決定します。 This is a virtual property that is set once during initialization and will not update if you change its value after the initial render. |
| Attribute | mode |
| Type | "ios" ｜ "md" |
| Default | undefined |
Events
No events available for this component.
Methods
No public methods available for this component.
CSS Shadow Parts
No CSS shadow parts available for this component.
CSS Custom Properties
- iOS
- MD
| Name | Description |
|---|---|
--fade-background-rgb | 非選択項目をカバーするグラデーションの背景（rgb形式 |
--highlight-background | 選択されたアイテムのピッカー・ハイライトの背景 |
--highlight-border-radius | 選択されたアイテムのピッカーハイライトの境界半径 |
| Name | Description |
|---|---|
--fade-background-rgb | 非選択項目をカバーするグラデーションの背景（rgb形式 |
--highlight-background | 選択されたアイテムのピッカー・ハイライトの背景 |
--highlight-border-radius | 選択されたアイテムのピッカーハイライトの境界半径 |
Slots
No slots available for this component.