Picker

Renders the native picker component on Android and iOS. 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>

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Reference

Props

Inherits View 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

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selectedValue

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

Type	Required
any	No

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style

Type	Required
pickerStyleType	No

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testID

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

Type	Required
string	No

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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

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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

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prompt

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

Type	Required	Platform
string	No	Android

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itemStyle

Style to apply to each of the item labels.

Type	Required	Platform
text styles	No	iOS