Merge pull request #247 from rizzomichaelg/patch-1

Check for null with getCurrentActivity()

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Add Android support for serial number, IP, and MAC address (https://github.com/rebeccahughes/react-native-device-info/pull/150)
 - Add tvOS support (https://github.com/rebeccahughes/react-native-device-info/pull/235)
 - Add flow types
+- Fix getCurrentActivity() null crash in Android (https://github.com/rebeccahughes/react-native-device-info/pull/247)
 
 [Diff](https://github.com/rebeccahughes/react-native-device-info/compare/1aafc6f0b20d7cd6f0939ea5370e9899e4914c93...master)
 

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

@@ -157,9 +157,10 @@ public class RNDeviceModule extends ReactContextBaseJavaModule {
     constants.put("timezone", TimeZone.getDefault().getID());
     constants.put("isEmulator", this.isEmulator());
     constants.put("isTablet", this.isTablet());
-    if (getCurrentActivity().checkCallingOrSelfPermission(Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED ||
+    if (getCurrentActivity() != null &&
+          (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) {
+            getCurrentActivity().checkCallingOrSelfPermission("android.permission.READ_PHONE_NUMBERS") == PackageManager.PERMISSION_GRANTED)) {
         TelephonyManager telMgr = (TelephonyManager) this.reactContext.getSystemService(Context.TELEPHONY_SERVICE);
         constants.put("phoneNumber", telMgr.getLine1Number());
     }