Trying to fix the problem when sendEvent method was fired before React was fully set up, as suggested in OneSignal#906

Author: italodokyte

android/src/main/java/com/geektime/rnonesignalandroid/RNOneSignal.java

@@ -135,6 +135,10 @@ private void removeHandlers() {
    }
 
    private void sendEvent(String eventName, Object params) {
+     if(!mReactContext.hasActiveCatalystInstance()) {
+        return;
+     }
+
       mReactContext
               .getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
               .emit(eventName, params);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-native-onesignal",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "React Native OneSignal SDK",
   "main": "src/index",
   "typings": "src/index.d.ts",