Finish SplashActivity if it's opened over NavigationActivity

On some devices, when returning to the app from background, some launchers
open the SplashActivity over the NavigationActivity. In this case, simply finish the SplashActivity
and return the the preview NavigationActivity.

android/app/src/main/java/com/reactnativenavigation/controllers/SplashActivity.java

@@ -11,6 +11,7 @@ import android.view.View;
 
 import com.reactnativenavigation.NavigationApplication;
 import com.reactnativenavigation.react.ReactDevPermission;
+import com.reactnativenavigation.utils.CompatUtils;
 
 public abstract class SplashActivity extends AppCompatActivity {
     public static boolean isResumed = false;
@@ -39,6 +40,10 @@ public abstract class SplashActivity extends AppCompatActivity {
         isResumed = true;
 
         if (NavigationApplication.instance.getReactGateway().hasStartedCreatingContext()) {
+            if (CompatUtils.isSplashOpenedOverNavigationActivity(this, getIntent())) {
+                finish();
+                return;
+            }
             NavigationApplication.instance.getEventEmitter().sendAppLaunchedEvent();
             if (NavigationApplication.instance.clearHostOnActivityDestroy()) {
                 overridePendingTransition(0, 0);

android/app/src/main/java/com/reactnativenavigation/utils/CompatUtils.java

@@ -0,0 +1,13 @@
+package com.reactnativenavigation.utils;
+
+import android.app.Activity;
+import android.content.Intent;
+
+public class CompatUtils {
+    public static boolean isSplashOpenedOverNavigationActivity(final Activity act, final Intent intent) {
+        return intent != null && intent.getAction() != null
+               && intent.getAction().equals(Intent.ACTION_MAIN)
+               && !act.isTaskRoot()
+               && intent.hasCategory(Intent.CATEGORY_LAUNCHER);
+    }
+}