Fix error ocurring while calling .toString() to a null object

Author: leandrosimoes

android/src/main/java/com/lesimoes/androidnotificationlistener/RNAndroidNotificationListener.java

@@ -16,14 +16,16 @@ public class RNAndroidNotificationListener extends NotificationListenerService {
     public void onNotificationPosted(StatusBarNotification sbn) {
         Notification notification = sbn.getNotification();
         String app = sbn.getPackageName();
+
+        if (notification.extras.getCharSequence(Notification.EXTRA_TITLE) == null) return;
+        if (notification.extras.getCharSequence(Notification.EXTRA_TEXT) == null) return;
+        
         String title = notification.extras.getCharSequence(Notification.EXTRA_TITLE).toString();
         String text = notification.extras.getCharSequence(Notification.EXTRA_TEXT).toString();
 
-        Log.d(TAG, "Notification received: "+app+" | "+title+" | "+text);
+        if (text == null) return;
 
-        if (text == null) {
-            return;
-        }
+        Log.d(TAG, "Notification received: " + app + " | " + title + " | " + text);
 
         WritableMap params = Arguments.createMap();
         params.putString("app", app);

android/src/main/java/com/lesimoes/androidnotificationlistener/RNAndroidNotificationListenerModule.java

@@ -19,14 +19,17 @@
 
 public class RNAndroidNotificationListenerModule extends ReactContextBaseJavaModule {
     private static ReactApplicationContext reactContext;
+    private static final String TAG = "RNAndroidNotificationListener";
 
     public RNAndroidNotificationListenerModule(ReactApplicationContext context) {
         super(context);
+        
         reactContext = context;
     }
 
+    @Override
     public String getName() {
-        return "RNAndroidNotificationListener";
+        return TAG;
     }
 
     @ReactMethod
@@ -54,10 +57,6 @@ public void requestPermission() {
         reactContext.startActivity(i);
     }
 
-    public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {}
-
-    public void onNewIntent(Intent intent){}
-
     public static void sendEvent(String event, WritableMap params) {
         if (reactContext == null) return;