actually fix the bug

app/src/main/java/app/revanced/manager/ui/screen/DashboardScreen.kt

@@ -5,6 +5,7 @@ import android.content.Intent
 import android.net.Uri
 import android.provider.Settings
 import androidx.activity.compose.BackHandler
+import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.pager.HorizontalPager
@@ -27,6 +28,7 @@ import app.revanced.manager.R
 import app.revanced.manager.data.room.apps.installed.InstalledApp
 import app.revanced.manager.domain.bundles.PatchBundleSource.Extensions.isDefault
 import app.revanced.manager.patcher.aapt.Aapt
+import app.revanced.manager.ui.component.AlertDialogExtended
 import app.revanced.manager.ui.component.AppTopBar
 import app.revanced.manager.ui.component.AutoUpdatesDialog
 import app.revanced.manager.ui.component.AvailableUpdateDialog
@@ -36,6 +38,7 @@ import app.revanced.manager.ui.component.haptics.HapticFloatingActionButton
 import app.revanced.manager.ui.component.haptics.HapticTab
 import app.revanced.manager.ui.component.bundle.ImportPatchBundleDialog
 import app.revanced.manager.ui.viewmodel.DashboardViewModel
+import app.revanced.manager.util.RequestInstallAppsContract
 import app.revanced.manager.util.toast
 import kotlinx.coroutines.launch
 import org.koin.androidx.compose.koinViewModel
@@ -93,20 +96,36 @@ fun DashboardScreen(
         )
     }
 
-    var showDialog by rememberSaveable { mutableStateOf(vm.prefs.showManagerUpdateDialogOnLaunch.getBlocking()) }
+    var showUpdateDialog by rememberSaveable { mutableStateOf(vm.prefs.showManagerUpdateDialogOnLaunch.getBlocking()) }
     val availableUpdate by remember {
-        derivedStateOf { vm.updatedManagerVersion.takeIf { showDialog } }
+        derivedStateOf { vm.updatedManagerVersion.takeIf { showUpdateDialog } }
     }
 
     availableUpdate?.let { version ->
         AvailableUpdateDialog(
-            onDismiss = { showDialog = false },
+            onDismiss = { showUpdateDialog = false },
             setShowManagerUpdateDialogOnLaunch = vm::setShowManagerUpdateDialogOnLaunch,
             onConfirm = onUpdateClick,
             newVersion = version
         )
     }
 
+    val context = LocalContext.current
+    var showAndroid11Dialog by rememberSaveable { mutableStateOf(false) }
+    val installAppsPermissionLauncher =
+        rememberLauncherForActivityResult(RequestInstallAppsContract) { granted ->
+            showAndroid11Dialog = false
+            if (granted) onAppSelectorClick()
+        }
+    if (showAndroid11Dialog) Android11Dialog(
+        onDismissRequest = {
+            showAndroid11Dialog = false
+        },
+        onContinue = {
+            installAppsPermissionLauncher.launch(context.packageName)
+        }
+    )
+
     Scaffold(
         topBar = {
             if (bundlesSelectable) {
@@ -188,6 +207,10 @@ fun DashboardScreen(
                                 }
                                 return@HapticFloatingActionButton
                             }
+                            if (vm.android11BugActive) {
+                                showAndroid11Dialog = true
+                                return@HapticFloatingActionButton
+                            }
 
                             onAppSelectorClick()
                         }
@@ -316,4 +339,25 @@ fun Notifications(
             }
         }
     }
+}
+
+@Composable
+fun Android11Dialog(onDismissRequest: () -> Unit, onContinue: () -> Unit) {
+    AlertDialogExtended(
+        onDismissRequest = onDismissRequest,
+        confirmButton = {
+            TextButton(onClick = onContinue) {
+                Text(stringResource(R.string.continue_))
+            }
+        },
+        title = {
+            Text(stringResource(R.string.android_11_bug_dialog_title))
+        },
+        icon = {
+            Icon(Icons.Outlined.BugReport, null)
+        },
+        text = {
+            Text(stringResource(R.string.android_11_bug_dialog_description))
+        }
+    )
 }

app/src/main/java/app/revanced/manager/ui/viewmodel/DashboardViewModel.kt

@@ -46,11 +46,6 @@ class DashboardViewModel(
 
     val newDownloaderPluginsAvailable = downloaderPluginRepository.newPluginPackageNames.map { it.isNotEmpty() }
 
-    var updatedManagerVersion: String? by mutableStateOf(null)
-        private set
-    var showBatteryOptimizationsWarning by mutableStateOf(false)
-        private set
-
     /**
      * Android 11 kills the app process after granting the "install apps" permission, which is a problem for the patcher screen.
      * This value is true when the conditions that trigger the bug are met.
@@ -59,6 +54,11 @@ class DashboardViewModel(
      */
     val android11BugActive get() = Build.VERSION.SDK_INT == Build.VERSION_CODES.R && !pm.canInstallPackages()
 
+    var updatedManagerVersion: String? by mutableStateOf(null)
+        private set
+    var showBatteryOptimizationsWarning by mutableStateOf(false)
+        private set
+
     init {
         viewModelScope.launch {
             checkForManagerUpdates()

app/src/main/java/app/revanced/manager/util/RequestInstallAppsContract.kt

@@ -3,15 +3,12 @@ package app.revanced.manager.util
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
-import android.os.Environment
 import android.provider.Settings
 import androidx.activity.result.contract.ActivityResultContract
-import androidx.annotation.RequiresApi
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.inject
 
-class RequestInstallAppsContract : ActivityResultContract<String, Boolean>(), KoinComponent {
+object RequestInstallAppsContract : ActivityResultContract<String, Boolean>(), KoinComponent {
     private val pm: PM by inject()
     override fun createIntent(context: Context, input: String) = Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES, Uri.fromParts("package", input, null))
 

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

@@ -35,6 +35,9 @@
     <string name="bundle_name_default">Default</string>
     <string name="bundle_name_fallback">Unnamed</string>
 
+    <string name="android_11_bug_dialog_title">Android 11 bug</string>
+    <string name="android_11_bug_dialog_description">The app installation permission must be granted ahead of time to avoid a bug in the Android 11 system that will negatively affect the user experience.</string>
+
     <string name="selected_app_meta_any_version">Any available version</string>
     <string name="app_source_dialog_title">Select source</string>
     <string name="app_source_dialog_option_auto">Auto</string>