Hi Guys, Today,I will learn you how to draw google maps polyline in react native.we will show example of react native maps polyline.First i will create import namespace MapView and Polyline from npm i react-native-maps, after I will using MapView using for MapView and polyline tag add polyline in react native example.

Here, I will give you full example for simply display google maps polyline using react native as bellow.

Step 1 - Create project

In the first step Run the following command for create project.

expo init MyWebtuts 

Step 2 - Installation of Dependency

In the step, Run the following command for installation of dependency.

To use MapView and Polyline you need to install react-native-maps package.

To install this open the terminal and jump into your project

cd paper MyWebtuts 

Run the following command

yarn add react-native-maps

Step 3 - App.js

In this step, You will open App.js file and put the code.

import React, { Component } from "react";
import { View,StyleSheet} from 'react-native';
import { Provider ,Appbar,Card} from 'react-native-paper';
import MapView ,{Marker,Polyline} from 'react-native-maps';

const MyWebtutsComponent = () => {

  const [coordinates] = React.useState([
    {
      latitude: 22.306885,
      longitude: 70.780538,
    },
    {
      latitude: 22.310696,
      longitude: 70.803152,
    },
    {
      latitude: 22.293067,
      longitude: 70.791559,
    },
     {
      latitude: 22.306885,
      longitude: 70.780538,
    },
  ]);

  const _goBack = () => console.log('Went back');

  const _handleSearch = () => console.log('Searching');

  const _handleMore = () => console.log('Shown more');

  return (
    <Provider>
    <Appbar.Header style={styles.header}>
      <Appbar.BackAction onPress={_goBack} />
      <Appbar.Content title="My App" subtitle="Subtitle" />
      <Appbar.Action icon="magnify" onPress={_handleSearch} />
      <Appbar.Action icon="dots-vertical" onPress={_handleMore} />
    </Appbar.Header>
      <View style={styles.mainbox}>
          <MapView
            style={styles.mapView}
            initialRegion={{
            latitude: 22.310617,
            longitude: 70.789841,
            latitudeDelta: 0.0322,
            longitudeDelta: 0.0321,
          }}
          >
            <Marker coordinate={coordinates[0]} />
            <Marker coordinate={coordinates[1]} />
            <Marker coordinate={coordinates[2]} />
             <Polyline
              coordinates={coordinates}
              strokeColor="#000"
              strokeColors={['#7F0000']}
              strokeWidth={3}
             />
          </MapView>
      </View>
    </Provider>
  );
};


const styles = StyleSheet.create({
  mainbox:{
    textAlign:'center',
    margin: 0,
    flex: 5,
    justifyContent: 'space-between',
  },
  mapView:{
    flex: 25,
  }
});
export default MyWebtutsComponent;

Step 3 - Run project

In the last step run your project using bellow command.

expo start

Output

It will help you...