added a splah screen

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

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+            android:drawable="@color/colorPrimary"/>
+
+    <item>
+        <bitmap
+                android:gravity="center"
+                android:src="@drawable/ic_launcher"/>
+    </item>
+
+</layer-list>

app/src/main/res/layout/fragment_home.xml

@@ -4,7 +4,7 @@
              xmlns:app="http://schemas.android.com/apk/res-auto"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
-             tools:context=".HomeFragment">
+             tools:context=".fragments.HomeFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"

app/src/main/res/layout/fragment_mensa.xml

@@ -3,7 +3,7 @@
              xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
-             tools:context=".MensaFragment">
+             tools:context=".fragments.MensaFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"

app/src/main/res/layout/fragment_settings.xml

@@ -3,7 +3,7 @@
              xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
-             tools:context=".SettingsFragment">
+             tools:context=".fragments.SettingsFragment">
 
     <androidx.constraintlayout.widget.ConstraintLayout
             android:layout_width="match_parent"

app/src/main/res/layout/fragment_time_table.xml

@@ -3,7 +3,7 @@
              xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
-             tools:context=".TimeTableFragment">
+             tools:context=".fragments.TimeTableFragment">
 
     <TextView
             android:layout_width="match_parent"

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

@@ -7,6 +7,7 @@
         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
         <item name="colorAccent">@color/colorAccent</item>
     </style>
+
     <style name="AppTheme.NoActionBar">
         <item name="windowActionBar">false</item>
         <item name="windowNoTitle">true</item>
@@ -14,4 +15,8 @@
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
     <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
 
+    <style name="SplashTheme" parent="Theme.AppCompat.NoActionBar">
+        <item name="android:windowBackground">@drawable/background_splash</item>
+    </style>
+
 </resources>