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React Native Background Geolocation Example

Screenshot

Intro

This is an example app of @mauron85/react-native-background-geolocation component.

How to build

In cloned directory:

yarn install

Android

Check android lib versions:

Name Version
Google Play Services >=30
Google Repository >=28

Go to Google API Console and select your project, or create new one:

In Overview -> Google Maps API -> Google Maps Android API -> Check if it's enabled. If not, click button Enable! Create a new key by clicking on Create credentials -> API Key -> Android Key, enter the name of the API key and your SHA1 key, generated before, and create it.

Add Google Maps Android API Key in android/app/src/main/res/values/strings.xml:

<resources>
    ...
    <string name="google_api_key">{{Your Google maps API Key Here}}</string>
</resources>

Run on device (or simulator)

react-native run-android

iOS

Run on device (or simulator)

react-native run-ios

Enable Freeway Drive in Debug ➜ Location menu in iOS Simulator.

Quirks

Android

For compatibility with react-native-maps v0.20.1 library versions were locked in root build.gradle file:

ext {
    compileSdkVersion   = 23
    targetSdkVersion    = 23
    buildToolsVersion   = "23.0.3"
    supportLibVersion   = "23+"
    googlePlayServicesVersion = "11+"
    androidMapsUtilsVersion = "0.5"
}

More info https://github.com/react-community/react-native-maps/blob/v0.20.1/docs/installation.md

As version 0.20.1 of react-native-maps there is another issue, which was resolved by updating following lines in app/build.gradle:

compile(project(':react-native-maps')) {
    exclude group: 'com.google.android.gms', module: 'play-services-base'
    exclude group: 'com.google.android.gms', module: 'play-services-maps'
}
compile "com.google.android.gms:play-services-base:11+"
compile 'com.google.android.gms:play-services-location:11+'
compile 'com.google.android.gms:play-services-maps:11+'

React-native-maps version 0.21 is not supported yet.

Troubleshoot

Android

Check adb logcat for errors. For example wrong API key:

E/Google Maps Android API(31792): Authorization failure.  Please see https://developers.google.com/maps/documentation/android-api/start for how to correctly set up the map.
E/Google Maps Android API(31792): In the Google Developer Console (https://console.developers.google.com)
E/Google Maps Android API(31792): Ensure that the "Google Maps Android API v2" is enabled.
E/Google Maps Android API(31792): Ensure that the following Android Key exists:
E/Google Maps Android API(31792): 	API Key: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA                                             
E/Google Maps Android API(31792): 	Android Application (<cert_fingerprint>;<package_name>): 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00;com.rnbgexample

Mocking Locations & Test Server

Follow instruction in background-geolocation-server project.