Report onActivityResult to RN

lib/android/app/src/main/java/com/reactnativenavigation/NavigationActivity.java

@@ -1,5 +1,6 @@
 package com.reactnativenavigation;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v7.app.AppCompatActivity;
@@ -50,6 +51,12 @@ public class NavigationActivity extends AppCompatActivity implements DefaultHard
         }
     }
 
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        getReactGateway().onActivityResult(this, requestCode, resultCode, data);
+    }
+
     @Override
     public void onBackPressed() {
         getReactGateway().onBackPressed();

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

@@ -62,6 +62,7 @@ public abstract class NavigationApplication extends Application implements React
      * @param name Unique name used to register the native view
      * @param creator Used to create the view at runtime
      */
+    @SuppressWarnings("unused")
     public void registerExternalComponent(String name, ExternalComponentCreator creator) {
         if (externalComponents.containsKey(name)) {
             throw new RuntimeException("A component has already been registered with this name: " + name);

lib/android/app/src/main/java/com/reactnativenavigation/react/ReactGateway.java

@@ -1,6 +1,8 @@
 package com.reactnativenavigation.react;
 
+import android.app.Activity;
 import android.app.Application;
+import android.content.Intent;
 
 import com.facebook.react.ReactNativeHost;
 import com.facebook.react.ReactPackage;
@@ -63,4 +65,8 @@ public class ReactGateway {
     public void onBackPressed() {
 	    reactNativeHost.getReactInstanceManager().onBackPressed();
     }
+
+    public void onActivityResult(Activity activity, int requestCode, int resultCode, Intent data) {
+        reactNativeHost.getReactInstanceManager().onActivityResult(activity, requestCode, resultCode, data);
+    }
 }