enable disable proximity flag in android

README.md

@@ -19,6 +19,14 @@ npm install --save react-native-proximity
 react-native link react-native-proximity
 ```
 
+## Android
+
+Include the following permission in `AndroidManifest.xml`:
+
+```
+<uses-permission android:name="android.permission.WAKE_LOCK" />
+```
+
 ## Usage
 
 Import the library
@@ -31,6 +39,7 @@ import Proximity from 'react-native-proximity';
 The callback function returns an object with *proximity* and *distance* properties. If *proximity* is true, it means the device is close to an physical object. *distance* is only supported in Android.
 ```javascript
 componentDidMount(){
+ Proximity.enableScreenOnOff(true) // enable screen on-off with proximity in android
  Proximity.addListener(this._proximityListener);
 },
 

android/src/main/java/com/RNProximity/RNProximityModule.java

@@ -28,6 +28,7 @@ public class RNProximityModule extends ReactContextBaseJavaModule implements Sen
   private static final String KEY_EVENT_ON_SENSOR_CHANGE = "EVENT_ON_SENSOR_CHANGE";
   private static final String EVENT_ON_SENSOR_CHANGE = "onSensorChanged";
   private final ReactApplicationContext reactContext;
+  private PowerManager.WakeLock wakeLock;
 
   private SensorManager mSensorManager;
   private Sensor mProximity;
@@ -49,6 +50,16 @@ public void sendEvent(String eventName, @Nullable WritableMap params) {
     }
   }
 
+  private PowerManager.WakeLock getWakeLock(){
+    Context context = this.reactContext.getApplicationContext();
+    PowerManager powerManager = context.getSystemService(PowerManager.class);
+    PowerManager.WakeLock wl;
+    if (powerManager.isWakeLockLevelSupported(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK)) {
+      return powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, "WAKE_LOCK:" + TAG);
+    }
+    return null;
+  }
+
   @ReactMethod
   public void addListener() {
     mSensorManager.registerListener(this, mProximity, SensorManager.SENSOR_DELAY_NORMAL);
@@ -59,6 +70,16 @@ public void removeListener() {
     mSensorManager.unregisterListener(this);
   }
 
+  @ReactMethod
+  public void proximityEnabled(boolean enable) {
+    if(this.wakeLock != null){
+    if(enable){
+      this.wakeLock.acquire();
+    } else
+      this.wakeLock.release();
+    }
+  }
+
   @Override
   public String getName() {
     return "RNProximity";

index.js

@@ -11,6 +11,12 @@ const nativeModule = NativeModules.RNProximity;
 let addListener = null;
 let removeListener = null;
 
+// only for Android
+let screenOnOff = false;
+const enableScreenOnOff = function(value) {
+  screenOnOff = value;
+};
+
 if (Platform.OS === 'ios') {
   addListener = function(callback) {
     NativeModules.RNProximity.proximityEnabled(true);
@@ -26,10 +32,16 @@ if (Platform.OS === 'ios') {
   }
 } else if (Platform.OS == 'android') {
   addListener = (callback) => {
+    if (screenOnOff) {
+      nativeModule.proximityEnabled(true);
+    }
     nativeModule.addListener();
     DeviceEventEmitter.addListener(nativeModule.EVENT_ON_SENSOR_CHANGE, e => callback(e));
   };
   removeListener = (listener) => {
+    if (screenOnOff) {
+      nativeModule.proximityEnabled(false);
+    }
     nativeModule.removeListener();
     DeviceEventEmitter.removeAllListeners(nativeModule.EVENT_ON_SENSOR_CHANGE, listener);
   };
@@ -38,4 +50,5 @@ if (Platform.OS === 'ios') {
 module.exports = {
   addListener,
   removeListener,
+  enableScreenOnOff
 };