Picker Style in React Native

Sometimes when designing a form in our app, we need to provide a multiple-choice option to the user.

In this article, we’ll learn about implementing Picker in a React-Native app and style it in our way.

To make the topic easier, we will examine an example with an explanation.

Picker Style in React Native

In React-Native, we use Picker. Picker is a UI component used to select a single item from multiple items, similar to the Dropdown menu.

When we place a Picker in our app, it styles in its default style. We can also change the style of a picker easily.

In our below code example, we will demonstrate how we can implement Picker in our React-Native app and style it in our way. The code snippet for our example will be as follows.

// importing necessary packages
import {Picker} from '@react-native-picker/picker';
import {StatusBar} from 'expo-status-bar';
import {useState} from 'react';
import {StyleSheet, Text, View} from 'react-native';

export default function App() {
  const [selectedValue, SetSelectedValue] = useState('java');

  return (  // Including the image
    <View style={styles.container}>
      <Picker
       selectedValue={selectedValue}
       style={
    { height: 50, width: 150 }}
       onValueChange={(itemValue, itemIndex) => SetSelectedValue(itemValue)}>
       <Picker.Item label='Java' value='java' />
       <Picker.Item label='Python' value='python' />
       <Picker.Item label='JavaScript' value='js' />
    </Picker>
    </View>
  );
}

const styles = StyleSheet.create({
  // Providing style.
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});

We already commanded the purpose of all necessary lines regarding the steps shared above in the example.

Through the line const [selectedValue, SetSelectedValue] = useState("java"); we the initial value of the picker to Java.

We created the Picker using the tag <Picker></Picker>, and below are the properties inside the tag.

When you run the app, you’ll get the output below.

Output:

Note that the code shared above is created in React-Native, and we used the Expo-CLI to run the app. Also, you need the latest version of Node.js.

If you don’t have Expo-CLI in your environment, install it first.