React Native Searchable Dropdown / Picker
This is an example of a Searchable Dropdown / Picker in React Native. To make a Searchable Dropdown in React Native we have a SearchableDropdown
component provided by react-native-searchable-dropdown
.
React Native Picker is the component that can be used as a drop-down but in case of huge data we have to give the facility to search for the option for that we can use Searchable Dropdown.
How to use the SearchableDropdown component?
<SearchableDropdown
onTextChange={text => console.log(text)}
//On text change listner on the searchable input
onItemSelect={item => alert(JSON.stringify(item))}
//onItemSelect called after the selection from the dropdown
containerStyle={{ padding: 5 }}
//suggestion container style
textInputStyle={{
//inserted text style
padding: 12,
borderWidth: 1,
borderColor: '#ccc',
backgroundColor: '#FAF7F6',
}}
itemStyle={{
//single dropdown item style
padding: 10,
marginTop: 2,
backgroundColor: '#FAF9F8',
borderColor: '#bbb',
borderWidth: 1,
}}
itemTextStyle={{
//text style of a single dropdown item
color: '#222',
}}
itemsContainerStyle={{
//items container style you can pass maxHeight
//to restrict the items dropdown hieght
maxHeight: '60%',
}}
items={items}
//mapping of item array
defaultIndex={2}
//default selected item index
placeholder="placeholder"
//place holder for the search input
resetValue={false}
//reset textInput Value with true and false state
underlineColorAndroid="transparent"
//To remove the underline from the android input
/>
In this example of the Searchable Dropdown, we will make 2 searchable drop-downs. One of them will have the data from the static array and the other one have the data from calling the rest API. So Let’s get started.
To Make a React Native App
Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react native command line interface to make our React Native App.
If you have previously installed a global react-native-cli package, please remove it as it may cause unexpected issues:
npm uninstall -g react-native-cli @react-native-community/cli
Run the following commands to create a new React Native project
npx react-native init ProjectName
If you want to start a new project with a specific React Native version, you can use the --version argument:
npx react-native init ProjectName --version X.XX.X
Note If the above command is failing, you may have old version of react-native
or react-native-cli
installed globally on your pc. Try uninstalling the cli and run the cli using npx.
This will make a project structure with an index file named App.js in your project directory.
Installation of Dependency
To use SearchableDropdown
component you need to install react-native-searchable-dropdown
dependency.
To install this open the terminal and jump into your project
cd ProjectName
Run the following command
npm install react-native-searchable-dropdown --save
This command will copy all the dependencies into your node_module directory
Code
Now Open App.js in any code editor and replace the code with the following code
App.js
// Example of Searchable Dropdown / Picker in React Native
// https://aboutreact.com/example-of-searchable-dropdown-picker-in-react-native/
// import React in our code
import React, {useState, useEffect} from 'react';
// import all the components we are going to use
import {SafeAreaView, StyleSheet, Text, View} from 'react-native';
// import SearchableDropdown component
import SearchableDropdown from 'react-native-searchable-dropdown';
// Item array for the dropdown
const items = [
// name key is must. It is to show the text in front
{id: 1, name: 'angellist'},
{id: 2, name: 'codepen'},
{id: 3, name: 'envelope'},
{id: 4, name: 'etsy'},
{id: 5, name: 'facebook'},
{id: 6, name: 'foursquare'},
{id: 7, name: 'github-alt'},
{id: 8, name: 'github'},
{id: 9, name: 'gitlab'},
{id: 10, name: 'instagram'},
];
const App = () => {
// Data Source for the SearchableDropdown
const [serverData, setServerData] = useState([]);
useEffect(() => {
fetch('https://abooutreactapis.000webhostapp.com/demosearchables.php')
.then((response) => response.json())
.then((responseJson) => {
//Successful response from the API Call
setServerData(responseJson.results);
})
.catch((error) => {
console.error(error);
});
}, []);
return (
<SafeAreaView style={styles.container}>
<View style={styles.container}>
<Text style={styles.titleText}>
Example of Searchable Dropdown / Picker in React Native
</Text>
<Text style={styles.headingText}>
Searchable Dropdown from Static Array
</Text>
<SearchableDropdown
onTextChange={(text) => console.log(text)}
// Listner on the searchable input
onItemSelect={(item) => alert(JSON.stringify(item))}
// Called after the selection
containerStyle={{padding: 5}}
// Suggestion container style
textInputStyle={{
// Inserted text style
padding: 12,
borderWidth: 1,
borderColor: '#ccc',
backgroundColor: '#FAF7F6',
}}
itemStyle={{
// Single dropdown item style
padding: 10,
marginTop: 2,
backgroundColor: '#FAF9F8',
borderColor: '#bbb',
borderWidth: 1,
}}
itemTextStyle={{
// Text style of a single dropdown item
color: '#222',
}}
itemsContainerStyle={{
// Items container style you can pass maxHeight
// To restrict the items dropdown hieght
maxHeight: '60%',
}}
items={items}
// Mapping of item array
defaultIndex={2}
// Default selected item index
placeholder="placeholder"
// place holder for the search input
resPtValue={false}
// Reset textInput Value with true and false state
underlineColorAndroid="transparent"
// To remove the underline from the android input
/>
<Text style={styles.headingText}>
Searchable Dropdown from Dynamic Array from Server
</Text>
<SearchableDropdown
onTextChange={(text) => console.log(text)}
// Change listner on the searchable input
onItemSelect={(item) => alert(JSON.stringify(item))}
// Called after the selection from the dropdown
containerStyle={{padding: 5}}
// Suggestion container style
textInputStyle={{
// Inserted text style
padding: 12,
borderWidth: 1,
borderColor: '#ccc',
backgroundColor: '#FAF7F6',
}}
itemStyle={{
// Single dropdown item style
padding: 10,
marginTop: 2,
backgroundColor: '#FAF9F8',
borderColor: '#bbb',
borderWidth: 1,
}}
itemTextStyle={{
// Text style of a single dropdown item
color: '#222',
}}
itemsContainerStyle={{
// Items container style you can pass maxHeight
// To restrict the items dropdown hieght
maxHeight: '50%',
}}
items={serverData}
// Mapping of item array
defaultIndex={2}
// Default selected item index
placeholder="placeholder"
// Place holder for the search input
resetValue={false}
// Reset textInput Value with true and false state
underlineColorAndroid="transparent"
// To remove the underline from the android input
/>
</View>
</SafeAreaView>
);
};
export default App;
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'white',
padding: 10,
},
titleText: {
padding: 8,
fontSize: 16,
textAlign: 'center',
fontWeight: 'bold',
},
headingText: {
padding: 8,
},
});
To Run the React Native App
Open the terminal again and jump into your project using.
cd ProjectName
1. Start Metro Bundler
First, you will need to start Metro, the JavaScript bundler that ships with React Native. To start Metro bundler run following command
npx react-native start
Once you start Metro Bundler it will run forever on your terminal until you close it. Let Metro Bundler run in its own terminal. Open a new terminal and run the application.
2. Start React Native Application
To run the project on an Android Virtual Device or on real debugging device
npx react-native run-android
or on the iOS Simulator by running (macOS only)
npx react-native run-ios
Output Screenshots
Output in Online Emulator
That was the example of the searchable dropdown/picker in React Native. If you have any doubts or want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!
Hope you liked it. 🙂
This is regarding react-native-searchable-dropdown
–> Can i clear the already selected item
–> can i set the default value
–> Can I clear the already selected item
Response: You can see resetValue={false} prop which can be managed using the state. It will clear the selected value and can clear the already selected item.
–> can I set the default value
You can use defaultIndex={2} to set the default value.
You can see resetValue={false} prop which can be managed using the state. It will clear the selected value and can clear the already selected item.
resetValue did not work for me to clear the fields. Can you show an example?
This is how I am doing it currently:
resetValue={value === ”}
if value is empty string then it will be true. which should reset the field.
Sorry, I am not available for now. I am out of town. But for now, you can set a state in the default index prop. like this
defaultIndex ={this.state.selectedindex}
and on the desired condition, you can change the state and reset the input.
If you still need the help then you can send me your code on my mail (snehalagrawal1701@gmail.com) or snack(https://snack.expo.io/@aboutreact/searchable-dropdown) will be a better option.
I am unable to clear field using resetValue.
how can i use this one in formik, without setting states outside formik
Haven’t tried it. Can anyone help?
is it possible to make the searchable dropdown overlap over the below inputs if you have two searchable dropdowns, one above the other? Currently, you can see the below text over the contents of the searchable dropdown when it’s dropped down.
I tried it but didn’t found any solution for that.
Please i need your help. I am currently new to react native. I have succesfully implement this dropdown on my app but anytime i click on the items, it disappear. I can see the items and can select but does not stay on the dropdown for users to see their selection. Thanks