Added splash screen to bypass blank screen on start up.

app/src/main/AndroidManifest.xml

@@ -18,7 +18,8 @@
         tools:ignore="AllowBackup">
         <activity
             android:name=".VideoItemListActivity"
-            android:label="@string/app_name">
+            android:label="@string/app_name"
+            android:theme="@style/SplashScreenTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

app/src/main/java/org/schabi/newpipe/VideoItemListActivity.java

@@ -18,7 +18,6 @@ import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.Toast;
 
-import org.schabi.newpipe.download.MainActivity;
 import org.schabi.newpipe.extractor.ExtractionException;
 import org.schabi.newpipe.extractor.SearchEngine;
 import org.schabi.newpipe.extractor.ServiceList;
@@ -200,6 +199,7 @@ public class VideoItemListActivity extends AppCompatActivity
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        setTheme(R.style.AppTheme);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_videoitem_list);
         StreamingService streamingService = null;

app/src/main/res/drawable/splash_screen.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:drawable="@color/light_background_color"/>
+
+    <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/ic_launcher"/>
+    </item>
+</layer-list>

app/src/main/res/values/styles.xml

@@ -48,6 +48,9 @@
         <item name="background">@color/video_overlay_color</item>
     </style>
 
+    <style name="SplashScreenTheme" parent="@style/AppTheme">
+        <item name="android:windowBackground">@drawable/splash_screen</item>
+    </style>
 
     <!-- You can also inherit from NNF_BaseTheme.Light -->
     <style name="FilePickerTheme" parent="NNF_BaseTheme.Light">