React Native Map Example
React Native Map Example is to integrate the Google Map into your React Native Application. To integrate the Map in our example we will use a very good library called react-native-maps. Which provides MapView component which is very easy to use. 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 init to make our React Native App. Assuming that you have node installed, you can use npm to install thereact-native-cli command line utility.
Open the terminal and go to the workspace and runnpm install -g react-native-clireact-native init ProjectNameInstallation of Dependency
To use MapView we need to install react-native-maps package. To install this
Open the terminal and jump into your project
1 | cd ProjectName |
Run the following command
1 | npm install react-native-maps --save |
This command will copy all the dependencies into your node_module directory, You can find the directory in node_module the directory named react-native-maps.
–save is optional, it is just to update the react-native-maps dependancy in your package.json file.
Linking of Library
To use react-native-maps library we have to link some dependencies in Android and IOS project files. In order to link the library, you have to run following command
1 | react-native link |
You can see the result like this
You can see the following changes in your android project. If you are unable to find the changes then please do those changes as they are must for this example.
Go to the MapExample> android > app > build.gradle.
Scroll down and you can see the following dependency and if not please add this.
1 | compile project(':react-native-maps') |
Open MapExample> android > settings.gradle and you can see the following lines and if not please add this.
1 2 | include ':react-native-maps' project(':react-native-maps').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-maps/lib/android') |
Open MapExample> android > app > src > main > java > com > mapexample> MainApplication.java and you can see the following lines in imports if not then please add
1 | import com.airbnb.android.react.maps.MapsPackage; |
Scroll down and you can see the following line in getPackages after new MainReactPackage() if not then please add a comma(,) and add
1 | new MapsPackage() |
Here we have done with our installation of the library. If you are still facing the trouble please comment below so that we can help you out from the problem.
Generate the API Key
To use Map in your Application we have to get Map API key from the Google Developer console. For that, open Developer console and log in from your Google account.
If you have already created any project you can use that or you can create a new one like this
After creating the project you can see all of your created project a drop down in the top left corner. Now select the project from the dropdown and goto to the credential section.
You can find the create credential option there.
Hit on the create credential button and it will create an API key to the user in your Map Application
Before we add this API key in our project you have to enable the API which you want to use in your project. For that, you can search for the Map and you will find the Map related API. We will enable Map SDK for Android because we are making this example for the Android. So click on Map SDK for Android and you will found the enable button to enable the Map API for Android.
Now after enabling the API key, we have to add this API key to our project’s AndroidManifest.xml file. Just copy the following lines and paste it into your manifest file with your generated API key.
1 2 3 | <meta-data android:name="com.google.android.geo.API_KEY" android:value="Replace this with your API key"/> |
You can download the source code from Github
OR
Open App.js in any code editor and replace the code with the following code
App.js
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | /*This is an Example of React Native Map*/ import React from 'react'; import { StyleSheet, Text, View } from 'react-native'; import MapView from 'react-native-maps'; export default class App extends React.Component { render() { return ( <View style={styles.container}> <MapView style={styles.map} initialRegion={{ latitude: 37.78825, longitude: -122.4324, latitudeDelta: 0.0922, longitudeDelta: 0.0421, }} /> </View> ); } } const styles = StyleSheet.create({ container: { position:'absolute', top:0, left:0, right:0, bottom:0, alignItems: 'center', justifyContent: 'flex-end', }, map: { position:'absolute', top:0, left:0, right:0, bottom:0, }, }); |
To Run the React Native App
Open the terminal again and jump into your project using.cd ProjectNamereact-native run-androidreact-native run-ios (macOS only).
This is how you can integrate Google Map in your React Native Application. If you have any doubt or you 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. 🙂
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Hi, this is wonderful and very easy to understand your article for react native with google map but i have successfully run the android apps but I am getting empty screen. i could see only bottom of google logo only. the map is not loaded fully. please help us. i didn’t encounter any errors.
Are you using the same StyleSheet?
const styles = StyleSheet.create({
container: {
position:’absolute’,
top:0,
left:0,
right:0,
bottom:0,
alignItems: ‘center’,
justifyContent: ‘flex-end’,
},
map: {
position:’absolute’,
top:0,
left:0,
right:0,
bottom:0,
},
});
Thank you for your response and I fixed the issue. I was used hybrid Google map key during the development. Now I changed the android native app key. Now working fine.
REACT NATIVE MAPS NPM DOES NOT WORKS IN THE LATEST REACT 0.59.1 VERSION
PLZ HELP…
NPM IS INSTALLED
PACKAGE IS ALSO LINKED
BUT REACT NATIVE RUN ANDROID GIVES ERROR IN NEW PROJECT
Can you please provide the screenshot?