react-native/docs/picker.md

id, title, layout, category, permalink, next, previous

id	title	layout	category	permalink	next	previous
picker	Picker	docs	components	docs/picker.html	picker-item	navigatorios

Renders the native picker component on iOS and Android. Example:

<Picker
  selectedValue={this.state.language}
  onValueChange={(itemValue, itemIndex) => this.setState({language: itemValue})}>
  <Picker.Item label="Java" value="java" />
  <Picker.Item label="JavaScript" value="js" />
</Picker>

Props

• View props...
• onValueChange
• selectedValue
• enabled
• mode
• prompt
• style
• itemStyle
• testID

---

Reference

Props

onValueChange

Callback for when an item is selected. This is called with the following parameters:

• itemValue: the value prop of the item that was selected
• itemPosition: the index of the selected item in this picker

Type	Required
function	No

---

selectedValue

Value matching value of one of the items. Can be a string or an integer.

Type	Required
any	No

---

enabled

If set to false, the picker will be disabled, i.e. the user will not be able to make a selection.

Type	Required	Platform
bool	No	Android

---

mode

On Android, specifies how to display the selection items when the user taps on the picker:

• 'dialog': Show a modal dialog. This is the default.
• 'dropdown': Shows a dropdown anchored to the picker view

Type	Required	Platform
enum('dialog', 'dropdown')	No	Android

---

prompt

Prompt string for this picker, used on Android in dialog mode as the title of the dialog.

Type	Required	Platform
string	No	Android

---

style

Type	Required
style	No

---

itemStyle

Style to apply to each of the item labels.

Type	Required	Platform
style	No	iOS

---

testID

Used to locate this view in end-to-end tests.

Type	Required
string	No