react-native-android-background-timer

Emit event periodically (even when app is in the background or the phone is locked).

Getting started

$ npm install react-native-android-background-timer --save

Mostly automatic installation

$ react-native link react-native-android-background-timer

Manual installation

Android

1. Open up android/app/src/main/java/[...]/MainActivity.java

• Add import com.reactlibrary.RNAndroidBackgroundTimerPackage; to the imports at the top of the file
• Add new RNAndroidBackgroundTimerPackage() to the list returned by the getPackages() method

2. Append the following lines to android/settings.gradle:

   include ':react-native-android-background-timer'
   project(':react-native-android-background-timer').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-android-background-timer/android')
   

3. Insert the following lines inside the dependencies block in android/app/build.gradle:

     compile project(':react-native-android-background-timer')
   

Usage

You can use the setInterval and setTimeout functions. This API is identical to that of react-native and can be used to quickly replace existing timers with background timers.

1import RNAndroidBackgroundTimer from 'react-native-android-background-timer';

1// Start a timer that runs continuous after X milliseconds
2const intervalId = RNAndroidBackgroundTimer.setInterval(() => {
3// this will be executed every 200 ms
4// even when app is the the background
5console.log('tic');
6}, 200);
7// Cancel the timer when you are done with it
8RNAndroidBackgroundTimer.clearInterval(intervalId);

Don't forget to add

1 �<uses-permission android:name="android.permission.WAKE_LOCK" />

� to your manifest.