Picker

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

<Picker
  selectedValue={this.state.language}
  style={{ height: 50, width: 100 }}
  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
• style
• testID
• enabled
• mode
• prompt
• itemStyle

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

style

Type	Required
pickerStyleType	No

testID

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

Type	Required
string	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

itemStyle

Style to apply to each of the item labels.

Type	Required	Platform
text styles	No	iOS