android: splash min 1 sec

AndroidE2E/app/src/androidTest/java/com/reactnativenavigation/e2e/androide2e/ApplicationLifecycleTest.java

     @Test
     public void _1_showSplash_AcceptsOverlayPermissions_ShowsWelcomeScreen() throws Exception {
         launchTheApp();
-//        assertThat(uiDevice().wait(Until.hasObject(By.desc("NavigationSplashView")), TIMEOUT)).isTrue();
+        assertExists(By.desc("NavigationSplashView"));
         assertMainShown();
     }
 

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

 import com.reactnativenavigation.react.NavigationEventEmitter;
 import com.reactnativenavigation.react.NavigationPackage;
 import com.reactnativenavigation.react.ReactDevPermission;
+import com.reactnativenavigation.utils.UiThread;
 
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicLong;
 
 public abstract class NavigationApplication extends Application implements ReactApplication {
     public static NavigationApplication instance;
 
         registerActivityLifecycleCallbacks(new ActivityLifecycleCallbacks() {
             private AtomicBoolean creating = new AtomicBoolean(true);
+            private AtomicLong startTime = new AtomicLong();
 
             @Override
             public void onActivityCreated(final Activity activity, Bundle bundle) {
                 }
 
                 if (!host.getReactInstanceManager().hasStartedCreatingInitialContext()) {
+                    startTime.set(System.currentTimeMillis());
                     host.getReactInstanceManager().addReactInstanceEventListener(new ReactInstanceManager.ReactInstanceEventListener() {
                         @Override
-                        public void onReactContextInitialized(ReactContext context) {
+                        public void onReactContextInitialized(final ReactContext context) {
                             host.getReactInstanceManager().removeReactInstanceEventListener(this);
-                            new NavigationEventEmitter(context).emitAppLaunched();
+
+                            long millisPassed = System.currentTimeMillis() - startTime.get();
+                            long diff = 1000 - millisPassed;
+
+                            UiThread.postDelayed(new Runnable() {
+                                @Override
+                                public void run() {
+                                    new NavigationEventEmitter(context).emitAppLaunched();
+                                }
+                            }, diff);
                         }
                     });
                     host.getReactInstanceManager().createReactContextInBackground();
                 host.getReactInstanceManager().onHostResume(activity, (DefaultHardwareBackBtnHandler) activity);
 
                 if (creating.compareAndSet(true, false)) {
-                    new NavigationEventEmitter(host.getReactInstanceManager().getCurrentReactContext()).emitAppLaunched();
+                    UiThread.postDelayed(new Runnable() {
+                        @Override
+                        public void run() {
+                            new NavigationEventEmitter(host.getReactInstanceManager().getCurrentReactContext()).emitAppLaunched();
+                        }
+                    }, 1000);
                 }
             }