react-native-dropdown-autocomplete

react-native-dropdown-autocomplete

Based on https://bit.ly/2AFjUsj, the most significant advantage of this package among all others is that you can have multiple autocomplete's on your page after following instructions below. Works on Android and IOS.

Usage

Install the package

npm i react-native-dropdown-autocomplete

Wrap the page you want to have autocomplete on with withKeyboardAwareScrollView:

import React, {Component} from "react";
import {StyleSheet, View, SafeAreaView} from "react-native";
import {Ionicons} from "@expo/vector-icons";
import shortid from "shortid";
import {Autocomplete, withKeyboardAwareScrollView} from "react-native-dropdown-autocomplete";

class HomeScreen extends Component {
  handleSelectItem(item, index) {
    const {onDropdownClose} = this.props;
    onDropdownClose();
    console.log(item);
  }

  render() {
    const autocompletes = [...Array(10).keys()];

    const apiUrl = "https://5b927fd14c818e001456e967.mockapi.io/branches";

    const {scrollToInput, onDropdownClose, onDropdownShow} = this.props;

    return (
      <View style={styles.autocompletesContainer}>
        <SafeAreaView>
          {autocompletes.map(() => (
            <Autocomplete
              key={shortid.generate()}
              style={styles.input}
              scrollToInput={ev => scrollToInput(ev)}
              handleSelectItem={(item, id) => this.handleSelectItem(item, id)}
              onDropdownClose={() => onDropdownClose()}
              onDropdownShow={() => onDropdownShow()}
              renderIcon={() => (
                <Ionicons name="ios-add-circle-outline" size={20} color="#c7c6c1" style={styles.plus} />
              )}
              fetchDataUrl={apiUrl}
              minimumCharactersCount={2}
              highlightText
              valueExtractor={item => item.name}
              rightContent
              rightTextExtractor={item => item.properties}
            />
          ))}
        </SafeAreaView>
      </View>
    );
  }
}
const styles = StyleSheet.create({
  autocompletesContainer: {
    paddingTop: 0,
    zIndex: 1,
    width: "100%",
    paddingHorizontal: 8,
  },
  input: {maxHeight: 40},
  inputContainer: {
    display: "flex",
    flexShrink: 0,
    flexGrow: 0,
    flexDirection: "row",
    flexWrap: "wrap",
    alignItems: "center",
    borderBottomWidth: 1,
    borderColor: "#c7c6c1",
    paddingVertical: 13,
    paddingLeft: 12,
    paddingRight: "5%",
    width: "100%",
    justifyContent: "flex-start",
  },
  container: {
    flex: 1,
    backgroundColor: "#ffffff",
  },
  plus: {
    position: "absolute",
    left: 15,
    top: 10,
  },
});

export default withKeyboardAwareScrollView(HomeScreen);

Usage without data-driven content

You can also pass fixed array of items to the Autocomplete

const data = [
  "Apples",
  "Broccoli",
  "Chicken",
  "Duck",
  "Eggs",
  "Fish",
  "Granola",
  "Hash Browns",
];

Change valueExtractor and pass the data to Autocomplete without fetchDataUrl

<Autocomplete data={data} valueExtractor={item => item} />

Properties

name	description	type	default
autoCorrect	Disable auto-correct	Boolean	true
highlightText	Highlight search results	Boolean	true
rightContent	Render additional text to the right of the item	Boolean	false
resetOnSelect	Reset the input after choosing an item	Boolean	false
minimumCharactersCount	Perform API request after certain number of characters entered	Number	2
waitInterval	Timeout between user finished typing and new data fetch	Number	400
placeholder	Autocomplete input placeholder text	String	Add Item
placeholderColor	Input placeholder color	String	#acada9
spinnerSize	Size of activity indicator	String	small
spinnerColor	Activity indicator color	String	#129a8d
listHeader	Text at the beginning of suggestions	String	-
fetchDataUrl	Data source url	String	-
noDataText	Text to display when no results	String	No Results
inputContainerStyle	Styles for autocomplete container	Object	-
inputStyle	Styles for autocomplete input	Object	-
spinnerStyle	Styles for activity indicator	Object	-
noDataTextStyle	Styles for empty results text	Object	-
separatorStyle	Styles for item dividers	Object	-
listFooterStyle	Styles for list footer	Object	-
listHeaderStyle	Styles for list header	Object	-
rightContentStyle	Styles for right content	Object	-
rightContentItemStyle	Styles for right content text	Object	-
listHeaderTextStyle	Styles for list header text	Object	-
overlayStyle	Styles for overlay view	Object	-
pickerStyle	Styles for item picker view	Object	-
containerStyle	Styles for dropdown container view	Object	-
scrollToInput	Focus on selected field	Function	-
handleSelectItem	Selection callback (agrs: item, index)	Function	-
onDropdownShow	Show keyboard	Function	-
onDropdownClose	Hide keyboard	Function	-
renderIcon	Render icon near input	Function	-
valueExtractor	Extract value from item (args: item, index)	Function	({ value }) => value
rightTextExtractor	Extract value from item (args: item, index)	Function	({ value }) => value
fetchData	Fetch data for autocomplete	Function	(searchInput) => Promise

Authors:

Maksym Plotnikov

Maksym Kordiyak

While developing our react-native application I found out that there's no autocomplete library available which can satisfy a need for > 1 autocomplete on a page. Styles were overlapping and due to position: "absolute" we weren't able to actually trigger TouchableOpacity on an element from the list on android device. We used a library which provides dropdown with auto-adjusting position using measureInWindow on a ref, we tweaked it a bit and with autocomplete input and time-slicing implementation we managed to get what we need. Still we can't interact with TextInput component while dropdown is opened but this is the best result we got using React Native Modal.