Added splash screen

app/src/main/AndroidManifest.xml

@@ -38,7 +38,7 @@
             android:name=".ActivityMain"
             android:excludeFromRecents="true"
             android:launchMode="singleInstance"
-            android:theme="@style/Theme.Transparent">
+            android:theme="@style/Theme.Splash">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 

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

@@ -0,0 +1,8 @@
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/darker_gray" />
+    <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@drawable/ic_launcher" />
+    </item>
+</layer-list>

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

@@ -65,6 +65,10 @@
         <item name="android:backgroundDimEnabled">false</item>
     </style>
 
+    <style name="Theme.Splash" parent="Theme.AppCompat.NoActionBar">
+        <item name="android:windowBackground">@drawable/splash</item>
+    </style>
+
     <style name="checkboxStyle" parent="Base.Widget.AppCompat.CompoundButton.CheckBox">
         <item name="android:textAppearance">@style/TextAppearance.AppCompat.Small</item>
         <item name="android:textColor">?android:attr/textColorSecondary</item>