/react-native-activity-android

Provides a method to pause Android app (Activity), as well as lifecycle hooks when app is paused and resumed.

Primary LanguageJavaScriptISC LicenseISC

react-native-activity-android

Provides a method to move Android apps to the background (instead of exiting), and lifecycle hooks when the application is paused and resumed.

Useful if you want to capture listen for BackButton press and pause your application.

Installation

  1. Install module

    npm install --save react-native-activity-android
    
  2. In android/setting.gradle

    ...
    include ':ActivityAndroid', ':app'
    project(':ActivityAndroid').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-activity-android/android')
    
  3. In android/app/build.gradle

    ...
    dependencies {
        ...
        compile project(':ActivityAndroid')
    }
    
  4. Register module (in MainActivity.java)

    import ca.jaysoo.activityandroid.ActivityAndroidPackage;          // <---- Import here
    
    public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {
      ......
    
      @Override
      protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mReactRootView = new ReactRootView(this);
    
        mReactInstanceManager = ReactInstanceManager.builder()
          .setApplication(getApplication())
          .setBundleAssetName("index.android.bundle")
          .setJSMainModuleName("index.android")
          .addPackage(new MainReactPackage())
          .addPackage(new ActivityAndroidPackage(this))              // <---- Add here
          .setUseDeveloperSupport(BuildConfig.DEBUG)
          .setInitialLifecycleState(LifecycleState.RESUMED)
          .build();
    
        mReactRootView.startReactApplication(mReactInstanceManager, "ExampleRN", null);
    
        setContentView(mReactRootView);
      }
    
      ......
    
    }
    

Usage

Moving an application to the background.

import { BackAndroid } from 'react-native';
import ActivityAndroid 'react-native-activity-android';

BackAndroid.addEventListener('hardwareBackPress', () => {
  // Note: callbacks are optional.
  ActivityAndroid.moveTaskToBack(() => console.log('worked'), () => console.log('failed'));
  return false; // Don't exit the app.
});

Lifecycle hooks.

import ActivityAndroid 'react-native-activity-android';

ActivityAndroid.addEventListener('activityPause', () => {
  console.log('App is moved to the background');
});

ActivityAndroid.addEventListener('activityResume', () => {
  console.log('App is moved to the foreground');
});

ActivityAndroid.removeEventListener('activityResume', callbackFn);
ActivityAndroid.removeEventListener('activityPause', callbackFn));