fix: clean up splash screen issues

Author: thunderbiscuit

app/build.gradle.kts

@@ -57,6 +57,7 @@ dependencies {
     implementation("androidx.datastore:datastore:1.1.1")
     implementation("com.google.protobuf:protobuf-javalite:3.18.0")
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
+    implementation("androidx.core:core-splashscreen:1.0.1")
 
     // Jetpack Compose
     // Adding the Bill of Materials synchronizes dependencies in the androidx.compose namespace

app/src/main/AndroidManifest.xml

@@ -13,7 +13,7 @@
 
         <activity
             android:name="org.bitcoindevkit.devkitwallet.presentation.DevkitWalletActivity"
-            android:theme="@style/Theme.BitcoindevkitSampleApp.Launcher"
+            android:theme="@style/SplashScreen"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/org/bitcoindevkit/devkitwallet/presentation/DevkitWalletActivity.kt

@@ -23,6 +23,7 @@ import org.bitcoindevkit.devkitwallet.data.UserPreferencesSerializer
 import org.bitcoindevkit.devkitwallet.domain.DwLogger
 import org.bitcoindevkit.devkitwallet.domain.UserPreferencesRepository
 import org.bitcoindevkit.devkitwallet.domain.Wallet
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import org.bitcoindevkit.devkitwallet.presentation.navigation.CreateWalletNavigation
 import org.bitcoindevkit.devkitwallet.presentation.navigation.HomeNavigation
 import org.bitcoindevkit.devkitwallet.presentation.theme.DevkitTheme
@@ -36,6 +37,8 @@ private val Context.userPreferencesStore: DataStore<UserPreferences> by dataStor
 
 class DevkitWalletActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
+
         super.onCreate(savedInstanceState)
 
         // Initialize Devkit Wallet Logger (used in the LogsScreen)

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

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="SplashScreen" parent="Theme.SplashScreen">
+        <item name="windowSplashScreenBackground">@color/primary_dark</item>
+        <item name="windowSplashScreenAnimatedIcon">@drawable/ic_launcher_bdk_foreground</item>
+        <item name="postSplashScreenTheme">@style/Theme.BitcoindevkitSampleApp</item>
+    </style>
+</resources>

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

@@ -4,8 +4,4 @@
         <!-- Status bar color -->
         <item name="android:statusBarColor">@color/primary_dark</item>
     </style>
-
-    <style name="Theme.BitcoindevkitSampleApp.Launcher">
-        <item name="android:background">@drawable/launch_screen</item>
-    </style>
 </resources>