NavigationReactInstance initialized each splash

android/app/src/main/java/com/reactnativenavigation/NavigationApplication.java

         super.onCreate();
         instance = this;
         handler = new Handler(getMainLooper());
-        navigationReactInstance = new NavigationReactInstance();
     }
 
     public void runOnMainThread(Runnable runnable) {
     }
 
     public ReactContext getReactContext() {
+        if (navigationReactInstance == null) {
+            return null;
+        }
         return navigationReactInstance.getReactInstanceManager().getCurrentReactContext();
     }
 
     public boolean isReactInstanceManagerInitialized() {
-        return navigationReactInstance.getReactInstanceManager() != null;
+        return navigationReactInstance != null && navigationReactInstance.getReactInstanceManager() != null;
     }
 
-    public abstract boolean isDebug();
-
-    @Nullable
-    public abstract List<ReactPackage> createAdditionalReactPackages();
-
     public void sendNavigatorEvent(String eventId, String navigatorEventId) {
+        if (navigationReactInstance == null) {
+            return;
+        }
         navigationReactInstance.getReactEventEmitter().sendNavigatorEvent(eventId, navigatorEventId);
     }
 
     public void sendEvent(String eventId, String navigatorEventId) {
+        if (navigationReactInstance == null) {
+            return;
+        }
         navigationReactInstance.getReactEventEmitter().sendEvent(eventId, navigatorEventId);
     }
 
     public void sendNavigatorEvent(String eventId, WritableMap arguments) {
+        if (navigationReactInstance == null) {
+            return;
+        }
         navigationReactInstance.getReactEventEmitter().sendEvent(eventId, arguments);
     }
 
     public void startReactContext() {
+        navigationReactInstance = new NavigationReactInstance();
         navigationReactInstance.startReactContextOnceInBackgroundAndExecuteJS();
     }
+
+    public abstract boolean isDebug();
+
+    @Nullable
+    public abstract List<ReactPackage> createAdditionalReactPackages();
 }

android/app/src/main/java/com/reactnativenavigation/react/NavigationReactInstance.java

 
     public void onHostDestroy() {
         reactInstanceManager.onHostDestroy();
+        reactInstanceManager.destroy();
     }
 
     private void replaceJsDevReloadListener() {