fix: Error: The WIFI_SERVICE must be looked up on the Application con…

…text or memory will leak on devices < Android N. Try changing reactContext to reactContext.getApplicationContext() [WifiManagerLeak] WifiManager manager = (WifiManager) reactContext.getSystemService(Context.WIFI_SERVICE);

android/src/main/java/com/learnium/RNDeviceInfo/RNDeviceModule.java

@@ -49,7 +49,7 @@ public String getName() {
 
   private WifiInfo getWifiInfo() {
     if ( this.wifiInfo == null ) {
-      WifiManager manager = (WifiManager) reactContext.getSystemService(Context.WIFI_SERVICE);
+      WifiManager manager = (WifiManager) reactContext.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
       this.wifiInfo = manager.getConnectionInfo();
     }
     return this.wifiInfo;
@@ -93,7 +93,7 @@ private Boolean isTablet() {
 
   @ReactMethod
   public void isPinOrFingerprintSet(Callback callback) {
-    KeyguardManager keyguardManager = (KeyguardManager) this.reactContext.getSystemService(Context.KEYGUARD_SERVICE); //api 16+
+    KeyguardManager keyguardManager = (KeyguardManager) this.reactContext.getApplicationContext().getSystemService(Context.KEYGUARD_SERVICE); //api 16+
     callback.invoke(keyguardManager.isKeyguardSecure());
   }
 
@@ -165,7 +165,7 @@ public void getMacAddress(Promise p) {
           (getCurrentActivity().checkCallingOrSelfPermission(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED ||
             getCurrentActivity().checkCallingOrSelfPermission(Manifest.permission.READ_SMS) == PackageManager.PERMISSION_GRANTED ||
             getCurrentActivity().checkCallingOrSelfPermission("android.permission.READ_PHONE_NUMBERS") == PackageManager.PERMISSION_GRANTED)) {
-        TelephonyManager telMgr = (TelephonyManager) this.reactContext.getSystemService(Context.TELEPHONY_SERVICE);
+        TelephonyManager telMgr = (TelephonyManager) this.reactContext.getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE);
         constants.put("phoneNumber", telMgr.getLine1Number());
     }
     return constants;