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>
Reference
Props
Inherits View Props.
onValueChange
Callback for when an item is selected. This is called with the following parameters:
itemValue
: thevalue
prop of the item that was selecteditemPosition
: 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 |