A React Native component inspired to Selectize which follows Material Design guidelines

react-native-material-selectize

A React Native component inspired to Selectize which follows Material Design guidelines.

Examples

Working examples are provided within the project. After downloading it, navigate to any subfolder of examples and run either "npm install" or "yarn".

Features

Material design guidelines compliance
Consistent look and feel on iOS and Android
State transitions (normal, focused and errored)
Highly customizable styles and props of inner TextInput component
Pure javascript implementation
Minimal setup (no props required)

Installation

The easiest way to install it is via npm. You need to have node.js installed.

npm install react-native-material-selectize --save

Alternatively you can use yarn.

yarn add react-native-material-selectize

Properties

name	description	type	default
chipStyle	Style of Chip component	Style	-
chipIconStyle	Style of Chip close icon	Style	-
containerStyle	Style of the main container component	Style	-
listStyle	Style of the dropdown list container	Style	-
listRowStyle	Style of each row within the list	Style	-
itemId	Unique identifier for each item object	String	id
items	Array of objects to populate the list More info	Array	[]
selectedItems	Array of objects to render chips More info	Array	[]
label	Text field label text	String	-
error	Text field error text	String	-
errorColor	Text field color for errored state	String	rgb(213, 0, 0)
tintColor	Text field accent color (focus)	String	rgb(0, 145, 234)
baseColor	Text field base color (blur)	String	rgba(0, 0, 0, .38)
showItems	Define when dropdown items should be seen	'always', 'never', 'onFocus', 'onTyping'	'onFocus'
autoReflow	Define whether the typed text reflows More info	Boolean	true
trimOnSubmit	Trim text before creating the Chip	Boolean	true
renderRow	Return the rendered row of the list	Function	renderRow default
renderChip	Return the rendered Chip component	Function	renderChip default
textInputProps	TextInput props More info	Object	-
middleComponent	A custom component to render between the text input and the item list	Component	-
filterOnKey	The key to filter on. If not set, the provided itemId is used	String	-

items

In general, this array should be consisting of objects having at least one property [itemId] which value is unique for each object. An example of valid input for itemId = 'id' would be:

[
  { id: 'john', email: 'john@gmail.com' },
  { id: 'doe', email: 'doe@gmail.com' }
]

An example of invalid input for itemId = 'anotherId' would be:

[
  { anotherId: '1' },
  { anotherId: '1' },
  { id: '2' }
]

It is invalid for two reasons: itemId doesn't appear in every object and there are two objects having same itemId.

If you just need to render a single value for each row in the list and for each Chip, 'items' prop can be represented as simple array of strings, but only if each value is unique:

['john', 'doe']

selectedItems

Same format rules of items

renderRow default

(id, onPress, item, style) => (
  <TouchableOpacity
    activeOpacity={0.6}
    key={id}
    onPress={onPress}
    style={[styles.listRow, style]}>
    <Text style={{ color: 'rgba(0, 0, 0, 0.87)' }}>{id}</Text>
  </TouchableOpacity>
)

param	description
id	'itemId' of the row-indexed object contained in 'items', used as 'key'
onPress	onPress handler that turns the selected row into a Chip
item	row-indexed object contained in 'items'
styles	reference to 'listRowStyle' prop

renderChip default

(id, onClose, item, style, iconStyle) => (
  <Chip
    key={id}
    iconStyle={iconStyle}
    onClose={onClose}
    text={id}
    style={style}
  />
)

param	description
id	unique key for the Chip, used as 'key'
onClose	onClose handler for removing the Chip
item	row-indexed object contained in 'items' if the Chip has been created clicking on a row of the list, OR the value of the TextInput otherwise
styles	reference to 'chipStyle' prop
iconStyle	reference to 'chipIconStyle' prop

textInputProps

Object which contains the props of the inner TextInput component used for filtering the results from the list generated by 'items' prop.
Some props are set internally and cannot be changed.

ignored prop	type	default
disableFullscreenUI	Boolean	true
underlineColorAndroid	String	transparent
value	String	set internally
selectionColor	String	'tintColor' prop

Other props have different default to better cope with the component requirements, but they can be overridden.

different default prop	type	default
autoCapitalize	String	none
autoCorrect	Boolean	false
blurOnSubmit	Boolean	false

The following handler props are wrapped internally and will be invoked if defined. They are called with different parameters than their original counterparts.

different parameters prop	type	parameters
onChangeText	Function	(text) => {}
onSubmitEditing	Function	(text) => {}
onFocus	Function	(text) => {}
onBlur	Function	(text) => {}

The following handler props have a special behavior: returning false they prevent the related event dispatch.

prevent event prop	type
onChangeText	Function
onSubmitEditing	Function

Methods

name	description	returns
focus()	Acquire focus	-
blur()	Release focus	-
submit()	Transform current text into Chip	-
getValue()	Get current value of the inner TextInput	String
getSelectedItems()	Get items transformed into Chips	Array
clearSelectedItems()	Remove all the Chips	-

Caveats

When Selectize is a child of a ScrollView, the ScrollView's
keyboardShouldPersistTaps prop must be set to either handled or always
for dropdown completion to work properly.