BIT-147: Improve splash screen handling for all OS levels (#72)

README.md

@@ -62,6 +62,11 @@ The following is a list of all third-party dependencies included as part of the
     - Purpose: Supplementary Android Compose features.
     - License: Apache 2.0
 
+- **Core SplashScreen**
+    - https://developer.android.com/jetpack/androidx/releases/core
+    - Purpose: Backwards compatible SplashScreen API implementation.
+    - License: Apache 2.0
+
 - **Dagger Hilt**
     - https://github.com/google/dagger
     - Purpose: Dependency injection framework.

app/build.gradle.kts

@@ -91,6 +91,7 @@ dependencies {
     ksp(libs.androidx.room.compiler)
     implementation(libs.androidx.room.ktx)
     implementation(libs.androidx.room.runtime)
+    implementation(libs.androidx.splashscreen)
     implementation(platform(libs.google.firebase.bom))
     implementation(libs.bitwarden.sdk)
     implementation(libs.bumptech.glide)

app/src/main/java/com/x8bit/bitwarden/MainActivity.kt

@@ -3,6 +3,7 @@ package com.x8bit.bitwarden
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import com.x8bit.bitwarden.ui.platform.feature.rootnav.RootNavScreen
 import com.x8bit.bitwarden.ui.platform.theme.BitwardenTheme
 import dagger.hilt.android.AndroidEntryPoint
@@ -13,10 +14,14 @@ import dagger.hilt.android.AndroidEntryPoint
 @AndroidEntryPoint
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
+        var shouldShowSplashScreen = true
+        installSplashScreen().setKeepOnScreenCondition { shouldShowSplashScreen }
         super.onCreate(savedInstanceState)
         setContent {
             BitwardenTheme {
-                RootNavScreen()
+                RootNavScreen(
+                    onSplashScreenRemoved = { shouldShowSplashScreen = false },
+                )
             }
         }
     }

app/src/main/java/com/x8bit/bitwarden/ui/auth/feature/login/LoginScreen.kt

@@ -4,6 +4,7 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Button
@@ -42,6 +43,7 @@ fun LoginScreen(
         horizontalAlignment = Alignment.CenterHorizontally,
         verticalArrangement = Arrangement.spacedBy(12.dp),
         modifier = Modifier
+            .fillMaxSize()
             .background(MaterialTheme.colorScheme.background)
             .padding(horizontal = 16.dp, vertical = 32.dp),
     ) {

app/src/main/java/com/x8bit/bitwarden/ui/platform/feature/rootnav/RootNavScreen.kt

@@ -1,6 +1,7 @@
 package com.x8bit.bitwarden.ui.platform.feature.rootnav
 
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.hilt.navigation.compose.hiltViewModel
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
@@ -23,9 +24,15 @@ import com.x8bit.bitwarden.ui.platform.feature.vaultunlocked.vaultUnlockedDestin
 fun RootNavScreen(
     viewModel: RootNavViewModel = hiltViewModel(),
     navController: NavHostController = rememberNavController(),
+    onSplashScreenRemoved: () -> Unit = {},
 ) {
     val state by viewModel.stateFlow.collectAsStateWithLifecycle()
 
+    val isNotSplashScreen = state != RootNavState.Splash
+    LaunchedEffect(isNotSplashScreen) {
+        if (isNotSplashScreen) onSplashScreenRemoved()
+    }
+
     NavHost(
         navController = navController,
         startDestination = SPLASH_ROUTE,

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

@@ -12,6 +12,7 @@
         <item name="android:textCursorDrawable">@null</item>
         <item name="android:windowActionBar">false</item>
         <item name="android:windowActionModeOverlay">true</item>
+        <item name="android:windowBackground">@null</item>
         <item name="android:windowNoTitle">true</item>
     </style>
 
@@ -20,10 +21,9 @@
     </style>
 
     <!-- Launch theme (for auto dark/light based on system) -->
-    <style name="LaunchTheme" parent="BaseTheme">
-        <item name="android:windowBackground">@drawable/splash_screen_dark</item>
-        <item name="android:windowNoTitle">true</item>
-        <item name="android:windowSplashScreenAnimatedIcon" tools:ignore="NewApi">
+    <style name="LaunchTheme" parent="Theme.SplashScreen">
+        <item name="postSplashScreenTheme">@style/BaseTheme</item>
+        <item name="windowSplashScreenAnimatedIcon">
             @drawable/splash_screen_round
         </item>
     </style>

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

@@ -12,6 +12,7 @@
         <item name="android:popupTheme">@android:style/ThemeOverlay.Material.Light</item>
         <item name="android:textCursorDrawable">@null</item>
         <item name="android:windowActionBar">false</item>
+        <item name="android:windowBackground">@null</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowActionModeOverlay">true</item>
     </style>
@@ -21,13 +22,12 @@
     </style>
 
     <!-- Launch theme (for auto dark/light based on system) -->
-    <style name="LaunchTheme" parent="BaseTheme">
-        <item name="android:windowBackground">@drawable/splash_screen</item>
-        <item name="android:windowNoTitle">true</item>
-        <item name="android:windowSplashScreenAnimatedIcon" tools:ignore="NewApi">
+    <style name="LaunchTheme" parent="Theme.SplashScreen">
+        <item name="postSplashScreenTheme">@style/BaseTheme</item>
+        <item name="windowSplashScreenAnimatedIcon">
             @drawable/splash_screen_round
         </item>
-        <item name="android:windowSplashScreenBackground" tools:ignore="NewApi">
+        <item name="windowSplashScreenBackground">
             @color/ic_launcher_background
         </item>
     </style>

app/src/test/java/com/x8bit/bitwarden/ui/platform/feature/rootnav/RootNavScreenTest.kt

@@ -8,6 +8,8 @@ import io.mockk.mockk
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.emptyFlow
 import kotlinx.coroutines.test.runTest
+import org.junit.Assert.assertFalse
+import org.junit.Assert.assertTrue
 import org.junit.Test
 
 class RootNavScreenTest : BaseComposeTest() {
@@ -47,15 +49,18 @@ class RootNavScreenTest : BaseComposeTest() {
             every { eventFlow } returns emptyFlow()
             every { stateFlow } returns rootNavStateFlow
         }
+        var isSplashScreenRemoved = false
         composeTestRule.setContent {
             RootNavScreen(
                 viewModel = viewModel,
                 navController = fakeNavHostController,
+                onSplashScreenRemoved = { isSplashScreenRemoved = true },
             )
         }
         composeTestRule.runOnIdle {
             fakeNavHostController.assertCurrentRoute("splash")
         }
+        assertFalse(isSplashScreenRemoved)
 
         // Make sure navigating to Auth works as expected:
         rootNavStateFlow.value = RootNavState.Auth
@@ -65,6 +70,7 @@ class RootNavScreenTest : BaseComposeTest() {
                 navOptions = expectedNavOptions,
             )
         }
+        assertTrue(isSplashScreenRemoved)
 
         // Make sure navigating to vault unlocked works as expected:
         rootNavStateFlow.value = RootNavState.VaultUnlocked

gradle/libs.versions.toml

@@ -16,6 +16,7 @@ androidxHiltNavigationCompose = "1.0.0"
 androidxLifecycle = "2.6.1"
 androidxNavigation = "2.7.2"
 androidxRoom = "2.5.2"
+androidxSplash = "1.1.0-alpha02"
 # Once the app and SDK reach a critical point of completeness we should begin fixing the version
 # here (BIT-311).
 bitwardenSdk = "0.3.0-SNAPSHOT"
@@ -60,6 +61,7 @@ androidx-navigation-compose = { module = "androidx.navigation:navigation-compose
 androidx-room-compiler = { module = "androidx.room:room-compiler", version.ref = "androidxRoom" }
 androidx-room-ktx = { module = "androidx.room:room-ktx", version.ref = "androidxRoom" }
 androidx-room-runtime = { module = "androidx.room:room-runtime", version.ref = "androidxRoom" }
+androidx-splashscreen = { module = "androidx.core:core-splashscreen", version.ref = "androidxSplash" }
 bitwarden-sdk = { module = "com.bitwarden:sdk-android", version.ref = "bitwardenSdk" }
 bumptech-glide = { module = "com.github.bumptech.glide:glide", version.ref = "glide" }
 detekt-detekt-formatting = { module = "io.gitlab.arturbosch.detekt:detekt-formatting", version.ref = "detekt" }