react-native-modal-selector

A cross-platform (iOS / Android), selector/picker component for React Native that is highly customizable and supports sections.

This project is the official continuation of the abandoned react-native-modal-picker repo. Contributors are welcome to request a promotion to collaborator status.

Demo

Install

1npm install react-native-modal-selector

Usage

You can either use this component in its default mode, as a wrapper around your existing component or provide a custom component (where you need to control opening of the modal yourself). In default mode a customizable button is rendered.

See SampleApp for an example how to use this component.

1import ModalSelector from 'react-native-modal-selector'
2
3class SampleApp extends Component {
4
5    constructor(props) {
6        super(props);
7
8        this.state = {
9            textInputValue: ''
10        }
11    }
12
13    render() {
14        let index = 0;
15        const data = [
16            { key: index++, section: true, label: 'Fruits' },
17            { key: index++, label: 'Red Apples' },
18            { key: index++, label: 'Cherries' },
19            { key: index++, label: 'Cranberries', accessibilityLabel: 'Tap here for cranberries' },
20            // etc...
21            // Can also add additional custom keys which are passed to the onChange callback
22            { key: index++, label: 'Vegetable', customKey: 'Not a fruit' }
23        ];
24
25        return (
26            <View style={{flex:1, justifyContent:'space-around', padding:50}}>
27
28                // Default mode
29                <ModalSelector
30                    data={data}
31                    initValue="Select something yummy!"
32                    onChange={(option)=>{ alert(`${option.label} (${option.key}) nom nom nom`) }} />
33
34                // Wrapper
35                <ModalSelector
36                    data={data}
37                    initValue="Select something yummy!"
38                    supportedOrientations={['landscape']}
39                    accessible={true}
40                    scrollViewAccessibilityLabel={'Scrollable options'}
41                    cancelButtonAccessibilityLabel={'Cancel Button'}
42                    onChange={(option)=>{ this.setState({textInputValue:option.label})}}>
43
44                    <TextInput
45                        style={{borderWidth:1, borderColor:'#ccc', padding:10, height:30}}
46                        editable={false}
47                        placeholder="Select something yummy!"
48                        value={this.state.textInputValue} />
49
50                </ModalSelector>
51
52                // Custom component
53                <ModalSelector
54                    data={data}
55                    ref={selector => { this.selector = selector; }}
56                    customSelector={<Switch onValueChange={() => this.selector.open()} />}
57                />
58            </View>
59        );
60    }
61}

Data Format

The selector accepts a specific format of data:

1[{ key: 5, label: 'Red Apples' }]

Optionally provide a component key which overrides the default label text. Optionally provide a unique testID for each item:

1[{
2  key: 5,
3  label: 'Red Apples',
4  // The next keys are optional --
5  component: <View style={{backgroundColor: 'red'}}><Text style={{color: 'white'}}>Red Apples custom component ☺</Text></View>,
6  testID: '5-red-apples'
7}]

If your data has a specific format, you can define extractors of data, example:

1this.setState({data: [{ id: 5, name: 'Red Apples' }]});
2
3return (
4  <ModalSelector
5    data={this.state.data}
6    keyExtractor= {item => item.id}
7    labelExtractor= {item => item.name}
8  />
9);

API

Props

Prop	Type	Optional	Default	Description
data	array	No	[]	array of objects with a unique key and label to select in the modal. Optional component overrides label text. Optional unique testID for each item.
onChange	function	Yes	() => {}	callback function, when the users has selected an option
onModalOpen	function	Yes	() => {}	callback function, when modal is opening
onModalClose	function	Yes	(item) => {}	callback function, when modal is closing. Returns the selected item.
keyExtractor	function	Yes	(data) => data.key	extract the key from the data item
labelExtractor	function	Yes	(data) => data.label	extract the label from the data item
componentExtractor	function	Yes	(data) => data.component	extract the component from the data item
visible	bool	Yes	false	control open/close state of modal
closeOnChange	bool	Yes	true	control if modal closes on select
initValue	string	Yes	Select me!	text that is initially shown on the button
cancelText	string	Yes	cancel	text of the cancel button
disabled	bool	Yes	false	true disables opening of the modal
supportedOrientations	['portrait', 'landscape']	Yes	both	orientations the modal supports
keyboardShouldPersistTaps	string / bool	Yes	always	passed to underlying ScrollView
listType	string	Yes	SCROLLVIEW	scroller type: SCROLLVIEW or FLATLIST
animationType	string	Yes	slide	type of animation to be used to show the modal. Must be one of none, slide or fade.
style	object	Yes		style definitions for the root element
childrenContainerStyle	object	Yes	{}	style definitions for the children container view
touchableStyle	object	Yes	{}	style definitions for the touchable element
touchableActiveOpacity	number	Yes	0.2	opacity for the touchable element on touch
selectStyle	object	Yes	{}	style definitions for the select element (available in default mode only!). NOTE: Due to breaking changes in React Native, RN < 0.39.0 should pass flex:1 explicitly to selectStyle as a prop.
selectTextStyle	object	Yes	{}	style definitions for the select element (available in default mode only!)
overlayStyle	object	Yes	{ flex: 1, padding: '5%', justifyContent: 'center', backgroundColor: 'rgba(0,0,0,0.7)' }	style definitions for the overlay background element. RN <= 0.41 should override this with pixel value for padding.
sectionStyle	object	Yes	{}	style definitions for the section element
sectionTextStyle	object	Yes	{}	style definitions for the select text element
selectedItemTextStyle	object	Yes	{}	style definitions for the currently selected text element
optionStyle	object	Yes	{}	style definitions for the option element
optionTextStyle	object	Yes	{}	style definitions for the option text element
optionContainerStyle	object	Yes	{}	style definitions for the option container element
cancelStyle	object	Yes	{}	style definitions for the cancel element
cancelTextStyle	object	Yes	{}	style definitions for the cancel text element
initValueTextStyle	object	Yes	{}	style definitions for the initValue text element
cancelContainerStyle	object	Yes	{}	style definitions for the cancel container
backdropPressToClose	bool	Yes	false	true makes the modal close when the overlay is pressed
passThruProps	object	Yes	{}	props to pass through to the container View and each option TouchableOpacity (e.g. testID for testing)
selectTextPassThruProps	object	Yes	{}	props to pass through to the select text component
optionTextPassThruProps	object	Yes	{}	props to pass through to the options text components in the modal
cancelTextPassThruProps	object	Yes	{}	props to pass through to the cancel text components in the modal
scrollViewPassThruProps	object	Yes	{}	props to pass through to the internal ScrollView
openButtonContainerAccessible	bool	Yes	false	true enables accessibility for the open button container. Note: if false be sure to define accessibility props directly in the wrapped component.
listItemAccessible	bool	Yes	false	true enables accessibility for data items. Note: data items should have an accessibilityLabel property if this is enabled
cancelButtonAccessible	bool	Yes	false	true enables accessibility for cancel button.
scrollViewAccessible	bool	Yes	false	true enables accessibility for the scroll view. Only enable this if you don't want to interact with individual data items.
scrollViewAccessibilityLabel	string	Yes	undefined	Accessibility label for the modal ScrollView
cancelButtonAccessibilityLabel	string	Yes	undefined	Accessibility label for the cancel button
modalOpenerHitSlop	object	Yes	{}	How far touch can stray away from touchable that opens modal (RN docs)
customSelector	node	Yes	undefined	Render a custom node instead of the built-in select box.
selectedKey	any	Yes	''	Key of the item to be initially selected
enableShortPress	bool	Yes	true	enables short press. This is regular touch behavior.
enableLongPress	bool	Yes	false	enables long press. When true, onModalOpen returns {longPress: true}
optionsTestIDPrefix	string	Yes	'default'	This prefixes each selectable option's testID prop if no testID keys are provided in props.data array objects. Default for each option's testID: 'default-<optionLabel>'
header	node	Yes	undefined	Render a header above the list
onEndReached	function	Yes	undefined	Called once when the scroll position gets of the rendered content.

Methods

• open(): open the modal.
• close(): close the modal.
• getSelectedItem(): get current selected item, updated by onChange event.

See also

• A similar project is hepter/react-native-modal-selector-searchable, which is a fork of this module that adds searching capabilities.