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react-native-lock-detection

v1.0.2

Published

Library to detect when the phone is locked or not

Downloads

20

Readme

React Native Lock Detection

Let know your app when the phone is locked or not. (iOS & Android)

Getting started

This is not published in NPM yet, so, if you want to use it you need to download it from GitHub or clone it and follow this:

Go to the folder where you have the library and run:

$ yarn link

After, go to your project folder and run:

$ yarn link react-native-lock-detection

Mostly automatic installation

Like this is native, you need to link the library, run:

$ react-native link react-native-lock-detection

Manual installation

In case the previous command doesn't do it's job, follow the next steps:

iOS

  1. In XCode, in the project navigator, right click LibrariesAdd Files to [your project's name]
  2. Go to node_modulesreact-native-lock-detection and add RNLockDetection.xcodeproj
  3. In XCode, in the project navigator, select your project. Add libRNLockDetection.a to your project's Build PhasesLink Binary With Libraries
  4. Run your project (Cmd+R)<

Android

  1. Open up android/app/src/main/java/[...]/MainActivity.java
  • Add import com.talosdigital.reactnative.RNLockDetectionPackage; to the imports at the top of the file
  • Add new RNLockDetectionPackage() to the list returned by the getPackages() method
  1. Append the following lines to android/settings.gradle:
    include ':react-native-lock-detection'
    project(':react-native-lock-detection').projectDir = new File(rootProject.projectDir, 	'../node_modules/react-native-lock-detection/android')
  2. Insert the following lines inside the dependencies block in android/app/build.gradle:
      compile project(':react-native-lock-detection')

Usage

The usage is differs for each platform:

iOS

In iOS is a little harder to use because of the configuration that React Native has for sending events trough the bridge.

import { NativeModules, NativeEventEmitter } from 'react-native'

...

const { LockDetection } = NativeModules
LockDetection.registerforDeviceLockNotif() // Register the library to listen the events for Darwin notifications
const LockDetectionEmitter = new NativeEventEmitter(LockDetection) // Create instance of EventEmitter
this.lockDetectionSuscription = LockDetectionEmitter.addListener( // and add the listener
  'LockStatusChange',
  newStatus => {
    this.setState({ lockStatus: [...this.state.lockStatus, newStatus] }) // Do whatever you need with the information
  }
)

...

componentWillUnmount() {
	this.lockDetectionSuscription.remove() // Always remove the listener to avoid memory leaks
}

For iOS, once the event has been fired, it sends an object with the following structure

{
  "newStatus": "LOCKED"
}

With the value being one of "LOCKED" or "NOT_LOCKED". Note that it sends NOT_LOCKED instead of UNLOCKED meaning that it doesn't detect if the phone is unlocked or not. (This is because of the Darwin Notifications)

Android

TODO: write Android documentation