React Native Location Switch

A react Native module to enable location based services on Android and IOS.

This was tested with

• react-native >= 0.57.5
• android buildToolsVersion 27.0.3
• gradle build tools 3.1.4

Installation

$ npm install react-native-location-switch-pk

Installation Android

1. add the following 2 lines to your /android/settings.gradle file

   include ':react-native-location-switch'
   project(':react-native-location-switch').projectDir = new File(settingsDir, '../node_modules/react-native-location-switch-pk/android')

2. add the following line to your /android/app/build.gradle file

   implementation project(':react-native-location-switch')

3. add the "LocationSwitchPackage" import into your MainApplication.java file:

   import org.pweitz.reactnative.locationswitch.LocationSwitchPackage;

4. add the "LocationSwitchPackage" into your MainApplication.java file (getPackages method):

    @Override
    protected List<ReactPackage> getPackages() {
      return Arrays.<ReactPackage>asList(
          new MainReactPackage(),
          ... // your other react native packages
          new LocationSwitchPackage()
      );
    }
   

5. add the "LocationSwitch" import into your MainActivity.java file:

   import org.pweitz.reactnative.locationswitch.LocationSwitch;

6. add the following code into your MainActivity.java file:

   @Override
   public void onActivityResult(int requestCode, int resultCode, Intent data) {
       super.onActivityResult(requestCode, resultCode, data);
       LocationSwitch.getInstance().onActivityResult(requestCode, resultCode);
   }

Post Installation Android

After you have installed on android and you do the first build you are going to see the following error:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:preDebugBuild'.
> Android dependency 'com.google.android.gms:play-services-base' has different version for the compile (11.0.0) and runtime (16.1.0) classpath. You should manually set the same version via DependencyResolution

In the error above, it tells us that the runtime version for 'com.google.android.gms:play-services-base' is '16.1.0', so in order to solve this we must add 16.1.0 as a forced choice in /android/app/build.gradle like this:

configurations.all {
    resolutionStrategy {
        force "com.google.android.gms:play-services-base:16.1.0"
    }
}

When you clean and build after this, it should just work.

Installation IOS

1. Open the project in xCode, left click on the Libraries folder -> Add files to ... and select

   ./node_modules/react-native-location-switch-pk/ios/RNReactNativeLocationSwitch.xcodeproj

2. Open the project -> Build Phases -> Link Binary With Libraries and select libRNReactNativeLocationSwitch.a

React Native Interface

LocationSwitch.enableLocationService(
    interval,
    requestHighAccuracy,
    successCallback,
    errorCallback
);

LocationSwitch.isLocationEnabled(
    successCallback,
    errorCallback
);

Option | Default | Info ------ | ------- | ---- interval | 1000 | Update interval in ms (ignored on IOS) requestHighAccuracy | false | If true, highest accuracy is requested. If false, "block" level accuracy is requested (ignored on IOS) successCallback | null | Is called when the user allows access to the location services or when the location services are already enabled errorCallback | null | Is called when the user denies access to the location services

Usage

import React, { Component } from 'react';
import { AppRegistry, Text, View, TouchableOpacity, StyleSheet, Alert } from 'react-native';
import LocationSwitch from 'react-native-location-switch-pk';

const style = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  button: {
    padding: 20,
  },
  text: {
    fontSize: 20,
  },
  textSuccess: {
    fontSize: 20,
    color: 'green',
  },
});

export default class LocationSwitchApp extends Component {

  constructor(props) {
    super(props);

    this.state = { locationEnabled: false };
    this.onEnableLocationPress = this.onEnableLocationPress.bind(this);
  }

  componentDidMount() {
    LocationSwitch.isLocationEnabled(
      () => {
        Alert.alert('Location is enabled');
        this.setState({ locationEnabled: true });
      },
      () => { Alert.alert('Location is disabled'); },
    );
  }

  onEnableLocationPress() {
    LocationSwitch.enableLocationService(1000, true,
      () => { this.setState({ locationEnabled: true }); },
      () => { this.setState({ locationEnabled: false }); },
    );
  }

  renderLocationStatus() {
    if (this.state.locationEnabled) {
      return <Text style={style.textSuccess} >Location enabled</Text>;
    }
    return <Text style={style.text}>Location disabled</Text>;
  }

  render() {
    return (
      <View style={style.container}>
        <TouchableOpacity style={style.button} onPress={this.onEnableLocationPress}>
          <Text style={style.text}>Enable location service</Text>
        </TouchableOpacity>
        {this.renderLocationStatus()}
      </View>
    );
  }
}

AppRegistry.registerComponent('reactClientSandbox', () => LocationSwitchApp);