siemiatj/react-native-modal-dropdown

Fork of the original https://github.com/sohobloo/react-native-modal-dropdown

react-native-modal-dropdown

A react-native dropdown/picker/selector component for both Android & iOS.

This is the most up to date fork of https://github.com/sohobloo/react-native-modal-dropdown and will be maintained. A discussion about that can be found here: sohobloo/react-native-modal-dropdown#251

Features

• Pure JS.
• Compatible with both iOS and Android.
• Auto position. (Won't be covered or clipped by the edge of screen.)
• Zero configuration. (Options are needed of course or a loading indicator will show.)
• Highly customizable.
• Controllable with API by code. (Show/Hide/Select)
• Change everything into a dropdown list trigger.

Demo

You can find them in the example.

Update History

v1.0.2

• Fixed Issue when initialScrollIndex failed. Added missing props: ref, getItemLayout, onScrollToIndexFailed
• Added keySearchObject option for search objects of array option

v1.0.1

• small fixes and more styling custimizations allowed

v1.0.0

• took over the package and merged user's PRs

v0.7.0

• Quick fix for react native 0.60. (Thanks to @ibtesamlatif2997)

Full update history list

Installation

npm i --save react-native-modal-dropdown

or

yarn add react-native-modal-dropdown

Usage

Basic

Import this module:

import ModalDropdown from 'react-native-modal-dropdown';

Use as a component:

<ModalDropdown options={['option 1', 'option 2']}/>

Use as a wrapper / container:

<ModalDropdown options={['option 1', 'option 2']}>
  ...
</ModalDropdown>

Customization

Give the style props as your choice:

• style: Change the style of the button (basic mode) / container (wrapper mode).
• textStyle: Change the style of text of the button. Invalid in wrapper mode.
• dropdownStyle: Change the style of dropdown container.

You can also render your option row and row separator by implement renderRow and renderSeparator function.

API

Props

Prop	Type	Optional	Default	Description
disabled	bool	Yes	false	disable / enable the component.
defaultIndex	number	Yes	-1	Init selected index. -1: None is selected. This only change the highlight of the dropdown row, you have to give a defaultValue to change the init text.
defaultValue	string	Yes	Please select...	Init text of the button. Invalid in wrapper mode.
options	array	Yes		Options. The dropdown will show a loading indicator if options is null/undefined.
animated	bool	Yes	true	Disable / enable fade animation.
isFullWidth	bool	Yes	false	Disable / enable is dropdown render as full width.
showsVerticalScrollIndicator	bool	Yes	true	Show / hide vertical scroll indicator.
saveScrollPosition	bool	Yes	true	Sets the scroll position to selected index.
style	object	Yes		Style of the button.
textStyle	object	Yes		Style of the button text. Invalid in wrapper mode.
defaultTextStyle	object	Yes		Overried Style of the button text for default value. Invalid in wrapper mode.
dropdownStyle	object	Yes		Style of the dropdown list.
dropdownTextStyle	object	Yes		Style of the dropdown option text.
dropdownTextHighlightStyle	object	Yes		Style of the dropdown selected option text.
dropdownTextProps	object	Yes		Add custom props to the dropdown option text
adjustFrame	func	Yes		This is a callback after the frame of the dropdown have been calculated and before showing. You will receive a style object as argument with some of the props like width height top left and right. Change them to appropriate values that accord with your requirement and make the new style as the return value of this function.
renderRow	func	Yes		Customize render option rows: function(option,index,isSelected) Will render a default row if null/undefined.
renderRowComponent	Component	Yes	TouchableOpacity for iOS and TouchableHighlight for Android	Customize the touchable component of the rows
renderRowProps	object	Yes		Add custom props to the touchable component of the rows
renderSeparator	func	Yes		Customize render dropdown list separators. Will render a default thin gray line if null/undefined.
renderButtonText	func	Yes		Use this to extract and return text from option object. This text will show on button after option selected. Invalid in wrapper mode.
renderRowText	func	Yes		Use this to extract and return text from option object. This text will show on row Invalid in wrapper mode.
renderButtonComponent	Component	Yes	TouchableOpacity	Customize the touchable component of the button
renderRightComponent	Component	Yes	View	Custom component/Image to display on right side as dropdown icon
renderButtonProps	object	Yes		Add custom props to the touchable component of the button
onDropdownWillShow	func	Yes		Trigger when dropdown will show by touching the button. Return false can cancel the event.
onDropdownWillHide	func	Yes		Trigger when dropdown will hide by touching the button. Return false can cancel the event.
onSelect	func	Yes		Trigger when option row touched with selected index and value. Return false can cancel the event.
accessible	bool	Yes	true	Set accessibility of dropdown modal and dropdown rows
keyboardShouldPersistTaps	enum('always', 'never', 'handled')	Yes	'never'	See react-native ScrollView props
multipleSelect	bool	Yes	false	Remove event closing modal when calling onSelect.
dropdownListProps	object	Yes	null	FlatList props
showSearch	bool	Yes	false	Setting showSearch to true will render the list header with a search
renderSearch	Component	Yes	null	Allows to pass search component (required showSearch props )
keySearchObject	string	Yes	'label'	If your option is an array containing objects, option will find element via keySearchObject
buttonAndRightComponentContainerStyle	object	Yes		Prop to style the container View of the <Text> and the <RightComponent />

Methods

Method	Description
show()	Show the dropdown. Won't trigger onDropdownWillShow.
hide()	Hide the dropdown. Won't trigger onDropdownWillHide.
select(idx)	Select the specified option of the idx. Select -1 will reset it to display defaultValue. Won't trigger onSelect.

Next version

Any suggestion is welcome.