[CredManUi] Dismiss system bars immediately upon bottom sheet dismissal

Before the bottom sheet dismissal animatyion is applied to the system
bars so they have to travel the whole screen to fade out.Now the system
bars are immediately set to invisible upon dismissal.

Bug: 271590672
Test: manually (see bug for recordings)
Change-Id: Ib385ed5455eceabbeadb6d3c41c4382b01a9ea74

packages/CredentialManager/src/com/android/credentialmanager/common/ui/BottomSheet.kt

@@ -22,6 +22,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import com.android.compose.rememberSystemUiController
 import com.android.credentialmanager.common.material.ModalBottomSheetLayout
 import com.android.credentialmanager.common.material.ModalBottomSheetValue
 import com.android.credentialmanager.common.material.rememberModalBottomSheetState
@@ -38,6 +39,12 @@ fun ModalBottomSheet(
         initialValue = ModalBottomSheetValue.Expanded,
         skipHalfExpanded = true
     )
+    val sysUiController = rememberSystemUiController()
+    if (state.targetValue == ModalBottomSheetValue.Hidden) {
+        setTransparentSystemBarsColor(sysUiController)
+    } else {
+        setBottomSheetSystemBarsColor(sysUiController)
+    }
     ModalBottomSheetLayout(
         sheetBackgroundColor = LocalAndroidColorScheme.current.colorSurfaceBright,
         modifier = Modifier.background(Color.Transparent),

packages/CredentialManager/src/com/android/credentialmanager/common/ui/SnackBar.kt

@@ -37,6 +37,7 @@ import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalAccessibilityManager
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
+import com.android.compose.rememberSystemUiController
 import com.android.credentialmanager.R
 import com.android.credentialmanager.common.material.Scrim
 import com.android.credentialmanager.ui.theme.Shapes
@@ -49,6 +50,8 @@ fun Snackbar(
     onDismiss: () -> Unit,
     dismissOnTimeout: Boolean = false,
 ) {
+    val sysUiController = rememberSystemUiController()
+    setTransparentSystemBarsColor(sysUiController)
     BoxWithConstraints {
         Box(Modifier.fillMaxSize()) {
             Scrim(

packages/CredentialManager/src/com/android/credentialmanager/createflow/CreateCredentialComponents.kt

@@ -46,7 +46,6 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.core.graphics.drawable.toBitmap
-import com.android.compose.rememberSystemUiController
 import com.android.credentialmanager.CredentialSelectorViewModel
 import com.android.credentialmanager.R
 import com.android.credentialmanager.common.BaseEntry
@@ -67,7 +66,6 @@ import com.android.credentialmanager.common.ui.MoreOptionTopAppBar
 import com.android.credentialmanager.common.ui.SheetContainerCard
 import com.android.credentialmanager.common.ui.PasskeyBenefitRow
 import com.android.credentialmanager.common.ui.HeadlineText
-import com.android.credentialmanager.common.ui.setBottomSheetSystemBarsColor
 import com.android.credentialmanager.logging.CreateCredentialEvent
 import com.android.internal.logging.UiEventLogger.UiEventEnum
 
@@ -77,8 +75,6 @@ fun CreateCredentialScreen(
     createCredentialUiState: CreateCredentialUiState,
     providerActivityLauncher: ManagedActivityResultLauncher<IntentSenderRequest, ActivityResult>
 ) {
-    val sysUiController = rememberSystemUiController()
-    setBottomSheetSystemBarsColor(sysUiController)
     ModalBottomSheet(
         sheetContent = {
             // Hide the sheet content as opposed to the whole bottom sheet to maintain the scrim

packages/CredentialManager/src/com/android/credentialmanager/getflow/GetCredentialComponents.kt

@@ -41,7 +41,6 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.core.graphics.drawable.toBitmap
-import com.android.compose.rememberSystemUiController
 import com.android.credentialmanager.CredentialSelectorViewModel
 import com.android.credentialmanager.R
 import com.android.credentialmanager.common.BaseEntry
@@ -62,8 +61,6 @@ import com.android.credentialmanager.common.ui.CredentialListSectionHeader
 import com.android.credentialmanager.common.ui.HeadlineIcon
 import com.android.credentialmanager.common.ui.LargeLabelTextOnSurfaceVariant
 import com.android.credentialmanager.common.ui.Snackbar
-import com.android.credentialmanager.common.ui.setTransparentSystemBarsColor
-import com.android.credentialmanager.common.ui.setBottomSheetSystemBarsColor
 import com.android.credentialmanager.logging.GetCredentialEvent
 import com.android.internal.logging.UiEventLogger.UiEventEnum
 
@@ -73,9 +70,7 @@ fun GetCredentialScreen(
     getCredentialUiState: GetCredentialUiState,
     providerActivityLauncher: ManagedActivityResultLauncher<IntentSenderRequest, ActivityResult>
 ) {
-    val sysUiController = rememberSystemUiController()
     if (getCredentialUiState.currentScreenState == GetScreenState.REMOTE_ONLY) {
-        setTransparentSystemBarsColor(sysUiController)
         RemoteCredentialSnackBarScreen(
             onClick = viewModel::getFlowOnMoreOptionOnSnackBarSelected,
             onCancel = viewModel::onUserCancel,
@@ -84,7 +79,6 @@ fun GetCredentialScreen(
         viewModel.uiMetrics.log(GetCredentialEvent.CREDMAN_GET_CRED_SCREEN_REMOTE_ONLY)
     } else if (getCredentialUiState.currentScreenState
         == GetScreenState.UNLOCKED_AUTH_ENTRIES_ONLY) {
-        setTransparentSystemBarsColor(sysUiController)
         EmptyAuthEntrySnackBarScreen(
             authenticationEntryList =
             getCredentialUiState.providerDisplayInfo.authenticationEntryList,
@@ -95,7 +89,6 @@ fun GetCredentialScreen(
         viewModel.uiMetrics.log(GetCredentialEvent
                 .CREDMAN_GET_CRED_SCREEN_UNLOCKED_AUTH_ENTRIES_ONLY)
     } else {
-        setBottomSheetSystemBarsColor(sysUiController)
         ModalBottomSheet(
             sheetContent = {
                 // Hide the sheet content as opposed to the whole bottom sheet to maintain the scrim