fix: install dialog getting stuck

app/build.gradle.kts

@@ -108,6 +108,10 @@ dependencies {
 
     // Compose Icons
     implementation(libs.compose.icons.fontawesome)
+
+    // Ackpine
+    implementation(libs.ackpine.core)
+    implementation(libs.ackpine.ktx)
 }
 
 buildscript {

app/src/main/AndroidManifest.xml

@@ -51,9 +51,6 @@
 
         <activity android:name=".plugin.downloader.webview.WebViewActivity" android:exported="false" android:theme="@style/Theme.WebViewActivity" />
 
-        <service android:name=".service.InstallService" />
-        <service android:name=".service.UninstallService" />
-
         <service
             android:name="androidx.work.impl.foreground.SystemForegroundService"
             android:foregroundServiceType="specialUse"
@@ -75,5 +72,15 @@
                     android:value="androidx.startup"
                     tools:node="remove" />
         </provider>
+
+        <provider
+            android:name="androidx.startup.InitializationProvider"
+            android:authorities="${applicationId}.androidx-startup"
+            android:exported="false"
+            tools:node="merge">
+            <meta-data
+                android:name="ru.solrudev.ackpine.AckpineInitializer"
+                tools:node="remove" />
+        </provider>
     </application>
 </manifest>

app/src/main/java/app/revanced/manager/ManagerApplication.kt

@@ -48,7 +48,8 @@ class ManagerApplication : Application() {
                 workerModule,
                 viewModelModule,
                 databaseModule,
-                rootModule
+                rootModule,
+                ackpineModule
             )
         }
 

app/src/main/java/app/revanced/manager/di/AckpineModule.kt

@@ -0,0 +1,19 @@
+package app.revanced.manager.di
+
+import android.content.Context
+import org.koin.android.ext.koin.androidContext
+import org.koin.dsl.module
+import ru.solrudev.ackpine.installer.PackageInstaller
+import ru.solrudev.ackpine.uninstaller.PackageUninstaller
+
+val ackpineModule = module {
+    fun provideInstaller(context: Context) = PackageInstaller.getInstance(context)
+    fun provideUninstaller(context: Context) = PackageUninstaller.getInstance(context)
+
+    single {
+        provideInstaller(androidContext())
+    }
+    single {
+        provideUninstaller(androidContext())
+    }
+}

app/src/main/java/app/revanced/manager/service/InstallService.kt

@@ -1,53 +0,0 @@
-package app.revanced.manager.service
-
-import android.app.Service
-import android.content.Intent
-import android.content.pm.PackageInstaller
-import android.os.Build
-import android.os.IBinder
-
-@Suppress("DEPRECATION")
-class InstallService : Service() {
-
-    override fun onStartCommand(
-        intent: Intent, flags: Int, startId: Int
-    ): Int {
-        val extraStatus = intent.getIntExtra(PackageInstaller.EXTRA_STATUS, -999)
-        val extraStatusMessage = intent.getStringExtra(PackageInstaller.EXTRA_STATUS_MESSAGE)
-        val extraPackageName = intent.getStringExtra(PackageInstaller.EXTRA_PACKAGE_NAME)
-        when (extraStatus) {
-            PackageInstaller.STATUS_PENDING_USER_ACTION -> {
-                startActivity(if (Build.VERSION.SDK_INT >= 33) {
-                    intent.getParcelableExtra(Intent.EXTRA_INTENT, Intent::class.java)
-                } else {
-                    intent.getParcelableExtra(Intent.EXTRA_INTENT)
-                }.apply {
-                    this?.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-                })
-            }
-
-            else -> {
-                sendBroadcast(Intent().apply {
-                    action = APP_INSTALL_ACTION
-                    `package` = packageName
-                    putExtra(EXTRA_INSTALL_STATUS, extraStatus)
-                    putExtra(EXTRA_INSTALL_STATUS_MESSAGE, extraStatusMessage)
-                    putExtra(EXTRA_PACKAGE_NAME, extraPackageName)
-                })
-            }
-        }
-        stopSelf()
-        return START_NOT_STICKY
-    }
-
-    override fun onBind(intent: Intent?): IBinder? = null
-
-    companion object {
-        const val APP_INSTALL_ACTION = "APP_INSTALL_ACTION"
-
-        const val EXTRA_INSTALL_STATUS = "EXTRA_INSTALL_STATUS"
-        const val EXTRA_INSTALL_STATUS_MESSAGE = "EXTRA_INSTALL_STATUS_MESSAGE"
-        const val EXTRA_PACKAGE_NAME = "EXTRA_PACKAGE_NAME"
-    }
-
-}

app/src/main/java/app/revanced/manager/ui/component/InstallerStatusDialog.kt

@@ -1,5 +1,6 @@
 package app.revanced.manager.ui.component
 
+import android.annotation.SuppressLint
 import android.content.pm.PackageInstaller
 import androidx.annotation.RequiresApi
 import androidx.annotation.StringRes
@@ -79,7 +80,7 @@ private fun installerStatusDialogButton(
 enum class DialogKind(
     val flag: Int,
     val title: Int,
-    @StringRes val contentStringResId: Int,
+    @param:StringRes val contentStringResId: Int,
     val icon: ImageVector = Icons.Outlined.ErrorOutline,
     val confirmButton: InstallerStatusDialogButton = installerStatusDialogButton(R.string.ok),
     val dismissButton: InstallerStatusDialogButton? = null,
@@ -133,10 +134,8 @@ enum class DialogKind(
         title = R.string.installation_storage_issue_dialog_title,
         contentStringResId = R.string.installation_storage_issue_description,
     ),
-
-    @RequiresApi(34)
     FAILURE_TIMEOUT(
-        flag = PackageInstaller.STATUS_FAILURE_TIMEOUT,
+        flag = @SuppressLint("InlinedApi") PackageInstaller.STATUS_FAILURE_TIMEOUT,
         title = R.string.installation_timeout_dialog_title,
         contentStringResId = R.string.installation_timeout_description,
         confirmButton = installerStatusDialogButton(R.string.install_app) { model ->

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

@@ -1,17 +1,11 @@
 package app.revanced.manager.ui.viewmodel
 
 import android.app.Application
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
 import android.content.pm.PackageInfo
-import android.content.pm.PackageInstaller
 import android.util.Log
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import app.revanced.manager.R
@@ -19,7 +13,6 @@ import app.revanced.manager.data.room.apps.installed.InstallType
 import app.revanced.manager.data.room.apps.installed.InstalledApp
 import app.revanced.manager.domain.installer.RootInstaller
 import app.revanced.manager.domain.repository.InstalledAppRepository
-import app.revanced.manager.service.UninstallService
 import app.revanced.manager.util.PM
 import app.revanced.manager.util.PatchSelection
 import app.revanced.manager.util.simpleMessage
@@ -30,6 +23,8 @@ import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.inject
+import ru.solrudev.ackpine.session.Session
+import ru.solrudev.ackpine.uninstaller.UninstallFailure
 
 class InstalledAppInfoViewModel(
     packageName: String
@@ -87,51 +82,28 @@ class InstalledAppInfoViewModel(
 
     fun uninstall() {
         val app = installedApp ?: return
-        when (app.installType) {
-            InstallType.DEFAULT -> pm.uninstallPackage(app.currentPackageName)
-
-            InstallType.MOUNT -> viewModelScope.launch {
-                rootInstaller.uninstall(app.currentPackageName)
-                installedAppRepository.delete(app)
-                onBackClick()
-            }
-        }
-    }
-
-    private val uninstallBroadcastReceiver = object : BroadcastReceiver() {
-        override fun onReceive(context: Context?, intent: Intent?) {
-            when (intent?.action) {
-                UninstallService.APP_UNINSTALL_ACTION -> {
-                    val extraStatus =
-                        intent.getIntExtra(UninstallService.EXTRA_UNINSTALL_STATUS, -999)
-                    val extraStatusMessage =
-                        intent.getStringExtra(UninstallService.EXTRA_UNINSTALL_STATUS_MESSAGE)
-
-                    if (extraStatus == PackageInstaller.STATUS_SUCCESS) {
-                        viewModelScope.launch {
-                            installedApp?.let {
-                                installedAppRepository.delete(it)
-                            }
-                            onBackClick()
+        viewModelScope.launch {
+            when (app.installType) {
+                InstallType.DEFAULT -> {
+                    when (val result = pm.uninstallPackage(app.currentPackageName)) {
+                        is Session.State.Failed<UninstallFailure> -> {
+                            val msg = result.failure.message.orEmpty()
+                            context.toast(
+                                this@InstalledAppInfoViewModel.context.getString(
+                                    R.string.uninstall_app_fail,
+                                    msg
+                                )
+                            )
+                            return@launch
                         }
-                    } else if (extraStatus != PackageInstaller.STATUS_FAILURE_ABORTED) {
-                        this@InstalledAppInfoViewModel.context.toast(this@InstalledAppInfoViewModel.context.getString(R.string.uninstall_app_fail, extraStatusMessage))
+                        Session.State.Succeeded -> {}
                     }
-
                 }
-            }
-        }
-    }.also {
-        ContextCompat.registerReceiver(
-            context,
-            it,
-            IntentFilter(UninstallService.APP_UNINSTALL_ACTION),
-            ContextCompat.RECEIVER_NOT_EXPORTED
-        )
-    }
 
-    override fun onCleared() {
-        super.onCleared()
-        context.unregisterReceiver(uninstallBroadcastReceiver)
+                InstallType.MOUNT -> rootInstaller.uninstall(app.currentPackageName)
+            }
+            installedAppRepository.delete(app)
+            onBackClick()
+        }
     }
 }

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

@@ -1,11 +1,9 @@
 package app.revanced.manager.ui.viewmodel
 
 import android.app.Application
-import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
-import android.content.IntentFilter
-import android.content.pm.PackageInstaller
+import android.content.pm.PackageInstaller as AndroidPackageInstaller
 import android.net.Uri
 import android.os.ParcelUuid
 import android.util.Log
@@ -16,7 +14,6 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.saveable.autoSaver
 import androidx.compose.runtime.setValue
 import androidx.compose.runtime.toMutableStateList
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.map
@@ -37,8 +34,6 @@ import app.revanced.manager.patcher.logger.Logger
 import app.revanced.manager.patcher.worker.PatcherWorker
 import app.revanced.manager.plugin.downloader.PluginHostApi
 import app.revanced.manager.plugin.downloader.UserInteractionException
-import app.revanced.manager.service.InstallService
-import app.revanced.manager.service.UninstallService
 import app.revanced.manager.ui.model.InstallerModel
 import app.revanced.manager.ui.model.ProgressKey
 import app.revanced.manager.ui.model.SelectedApp
@@ -48,16 +43,19 @@ import app.revanced.manager.ui.model.StepCategory
 import app.revanced.manager.ui.model.StepProgressProvider
 import app.revanced.manager.ui.model.navigation.Patcher
 import app.revanced.manager.util.PM
+import app.revanced.manager.util.asCode
 import app.revanced.manager.util.saveableVar
 import app.revanced.manager.util.saver.snapshotStateListSaver
-import app.revanced.manager.util.simpleMessage
-import app.revanced.manager.util.tag
 import app.revanced.manager.util.toast
 import app.revanced.manager.util.uiSafe
 import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.NonCancellable
+import kotlinx.coroutines.async
+import kotlinx.coroutines.cancel
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.receiveAsFlow
 import kotlinx.coroutines.launch
@@ -66,6 +64,15 @@ import kotlinx.coroutines.withContext
 import org.koin.core.component.KoinComponent
 import org.koin.core.component.get
 import org.koin.core.component.inject
+import ru.solrudev.ackpine.installer.InstallFailure
+import ru.solrudev.ackpine.installer.PackageInstaller
+import ru.solrudev.ackpine.installer.createSession
+import ru.solrudev.ackpine.installer.getSession
+import ru.solrudev.ackpine.session.ProgressSession
+import ru.solrudev.ackpine.session.Session
+import ru.solrudev.ackpine.session.await
+import ru.solrudev.ackpine.session.parameters.Confirmation
+import ru.solrudev.ackpine.uninstaller.UninstallFailure
 import java.io.File
 import java.nio.file.Files
 import java.time.Duration
@@ -81,6 +88,7 @@ class PatcherViewModel(
     private val installedAppRepository: InstalledAppRepository by inject()
     private val rootInstaller: RootInstaller by inject()
     private val savedStateHandle: SavedStateHandle = get()
+    private val ackpineInstaller: PackageInstaller = get()
 
     private var installedApp: InstalledApp? = null
     private val selectedApp = input.selectedApp
@@ -95,7 +103,6 @@ class PatcherViewModel(
         mutableStateOf<String?>(null)
     }
         private set
-    private var ongoingPmSession: Boolean by savedStateHandle.saveableVar { false }
     var packageInstallerStatus: Int? by savedStateHandle.saveable(
         key = "packageInstallerStatus",
         stateSaver = autoSaver()
@@ -104,7 +111,7 @@ class PatcherViewModel(
     }
         private set
 
-    var isInstalling by mutableStateOf(ongoingPmSession)
+    var isInstalling by mutableStateOf(false)
         private set
 
     private var currentActivityRequest: Pair<CompletableDeferred<Boolean>, String>? by mutableStateOf(
@@ -123,6 +130,18 @@ class PatcherViewModel(
         }
     }
 
+    /**
+     * This coroutine scope is used to await installations.
+     * It should not be cancelled on system-initiated process death since that would cancel the installation process.
+     */
+    private val installerCoroutineScope = CoroutineScope(Dispatchers.Main)
+
+    /**
+     * Holds the package name of the Apk we are trying to install.
+     */
+    private var installerPkgName: String by savedStateHandle.saveableVar { "" }
+    private var installerSessionId: ParcelUuid? by savedStateHandle.saveableVar()
+
     private var inputFile: File? by savedStateHandle.saveableVar()
     private val outputFile = tempDir.resolve("output.apk")
 
@@ -174,67 +193,68 @@ class PatcherViewModel(
     private val workManager = WorkManager.getInstance(app)
 
     private val patcherWorkerId by savedStateHandle.saveable<ParcelUuid> {
-        ParcelUuid(workerRepository.launchExpedited<PatcherWorker, PatcherWorker.Args>(
-            "patching", PatcherWorker.Args(
-                input.selectedApp,
-                outputFile.path,
-                input.selectedPatches,
-                input.options,
-                logger,
-                onDownloadProgress = {
-                    withContext(Dispatchers.Main) {
-                        downloadProgress = it
-                    }
-                },
-                onPatchCompleted = { withContext(Dispatchers.Main) { completedPatchCount += 1 } },
-                setInputFile = { withContext(Dispatchers.Main) { inputFile = it } },
-                handleStartActivityRequest = { plugin, intent ->
-                    withContext(Dispatchers.Main) {
-                        if (currentActivityRequest != null) throw Exception("Another request is already pending.")
-                        try {
-                            // Wait for the dialog interaction.
-                            val accepted = with(CompletableDeferred<Boolean>()) {
-                                currentActivityRequest = this to plugin.name
-
-                                await()
-                            }
-                            if (!accepted) throw UserInteractionException.RequestDenied()
-
-                            // Launch the activity and wait for the result.
+        ParcelUuid(
+            workerRepository.launchExpedited<PatcherWorker, PatcherWorker.Args>(
+                "patching", PatcherWorker.Args(
+                    input.selectedApp,
+                    outputFile.path,
+                    input.selectedPatches,
+                    input.options,
+                    logger,
+                    onDownloadProgress = {
+                        withContext(Dispatchers.Main) {
+                            downloadProgress = it
+                        }
+                    },
+                    onPatchCompleted = { withContext(Dispatchers.Main) { completedPatchCount += 1 } },
+                    setInputFile = { withContext(Dispatchers.Main) { inputFile = it } },
+                    handleStartActivityRequest = { plugin, intent ->
+                        withContext(Dispatchers.Main) {
+                            if (currentActivityRequest != null) throw Exception("Another request is already pending.")
                             try {
-                                with(CompletableDeferred<ActivityResult>()) {
-                                    launchedActivity = this
-                                    launchActivityChannel.send(intent)
+                                // Wait for the dialog interaction.
+                                val accepted = with(CompletableDeferred<Boolean>()) {
+                                    currentActivityRequest = this to plugin.name
+
                                     await()
                                 }
+                                if (!accepted) throw UserInteractionException.RequestDenied()
+
+                                // Launch the activity and wait for the result.
+                                try {
+                                    with(CompletableDeferred<ActivityResult>()) {
+                                        launchedActivity = this
+                                        launchActivityChannel.send(intent)
+                                        await()
+                                    }
+                                } finally {
+                                    launchedActivity = null
+                                }
                             } finally {
-                                launchedActivity = null
+                                currentActivityRequest = null
+                            }
+                        }
+                    },
+                    onProgress = { name, state, message ->
+                        viewModelScope.launch {
+                            steps[currentStepIndex] = steps[currentStepIndex].run {
+                                copy(
+                                    name = name ?: this.name,
+                                    state = state ?: this.state,
+                                    message = message ?: this.message
+                                )
+                            }
+
+                            if (state == State.COMPLETED && currentStepIndex != steps.lastIndex) {
+                                currentStepIndex++
+
+                                steps[currentStepIndex] =
+                                    steps[currentStepIndex].copy(state = State.RUNNING)
                             }
-                        } finally {
-                            currentActivityRequest = null
                         }
                     }
-                },
-                onProgress = { name, state, message ->
-                    viewModelScope.launch {
-                        steps[currentStepIndex] = steps[currentStepIndex].run {
-                            copy(
-                                name = name ?: this.name,
-                                state = state ?: this.state,
-                                message = message ?: this.message
-                            )
-                        }
-
-                        if (state == State.COMPLETED && currentStepIndex != steps.lastIndex) {
-                            currentStepIndex++
-
-                            steps[currentStepIndex] =
-                                steps[currentStepIndex].copy(state = State.RUNNING)
-                        }
-                    }
-                }
-            )
-        ))
+                )
+            ))
     }
 
     val patcherSucceeded =
@@ -246,64 +266,26 @@ class PatcherViewModel(
             }
         }
 
-    private val installerBroadcastReceiver = object : BroadcastReceiver() {
-        override fun onReceive(context: Context?, intent: Intent?) {
-            when (intent?.action) {
-                InstallService.APP_INSTALL_ACTION -> {
-                    val pmStatus = intent.getIntExtra(
-                        InstallService.EXTRA_INSTALL_STATUS,
-                        PackageInstaller.STATUS_FAILURE
-                    )
+    init {
+        // TODO: detect system-initiated process death during the patching process.
 
-                    intent.getStringExtra(UninstallService.EXTRA_UNINSTALL_STATUS_MESSAGE)
-                        ?.let(logger::trace)
-
-                    if (pmStatus == PackageInstaller.STATUS_SUCCESS) {
-                        app.toast(app.getString(R.string.install_app_success))
-                        installedPackageName =
-                            intent.getStringExtra(InstallService.EXTRA_PACKAGE_NAME)
-                        viewModelScope.launch {
-                            installedAppRepository.addOrUpdate(
-                                installedPackageName!!,
-                                packageName,
-                                input.selectedApp.version
-                                    ?: pm.getPackageInfo(outputFile)?.versionName!!,
-                                InstallType.DEFAULT,
-                                input.selectedPatches
-                            )
+        installerSessionId?.uuid?.let { id ->
+            viewModelScope.launch {
+                try {
+                    isInstalling = true
+                    uiSafe(app, R.string.install_app_fail, "Failed to install") {
+                        // The process was killed during installation. Await the session again.
+                        withContext(Dispatchers.IO) {
+                            ackpineInstaller.getSession(id)
+                        }?.let {
+                            awaitInstallation(it)
                         }
-                    } else packageInstallerStatus = pmStatus
-
+                    }
+                } finally {
                     isInstalling = false
                 }
-
-                UninstallService.APP_UNINSTALL_ACTION -> {
-                    val pmStatus = intent.getIntExtra(
-                        UninstallService.EXTRA_UNINSTALL_STATUS,
-                        PackageInstaller.STATUS_FAILURE
-                    )
-
-                    intent.getStringExtra(UninstallService.EXTRA_UNINSTALL_STATUS_MESSAGE)
-                        ?.let(logger::trace)
-
-                    if (pmStatus != PackageInstaller.STATUS_SUCCESS)
-                        packageInstallerStatus = pmStatus
-                }
             }
         }
-    }
-
-    init {
-        // TODO: detect system-initiated process death during the patching process.
-        ContextCompat.registerReceiver(
-            app,
-            installerBroadcastReceiver,
-            IntentFilter().apply {
-                addAction(InstallService.APP_INSTALL_ACTION)
-                addAction(UninstallService.APP_UNINSTALL_ACTION)
-            },
-            ContextCompat.RECEIVER_NOT_EXPORTED
-        )
 
         viewModelScope.launch {
             installedApp = installedAppRepository.get(packageName)
@@ -313,7 +295,6 @@ class PatcherViewModel(
     @OptIn(DelicateCoroutinesApi::class)
     override fun onCleared() {
         super.onCleared()
-        app.unregisterReceiver(installerBroadcastReceiver)
         workManager.cancelWorkById(patcherWorkerId.uuid)
 
         if (input.selectedApp is SelectedApp.Installed && installedApp?.installType == InstallType.MOUNT) {
@@ -328,6 +309,7 @@ class PatcherViewModel(
     }
 
     fun onBack() {
+        installerCoroutineScope.cancel()
         // tempDir cannot be deleted inside onCleared because it gets called on system-initiated process death.
         tempDir.deleteRecursively()
     }
@@ -372,44 +354,93 @@ class PatcherViewModel(
 
     fun open() = installedPackageName?.let(pm::launch)
 
-    fun install(installType: InstallType) = viewModelScope.launch {
-        var pmInstallStarted = false
-        try {
-            isInstalling = true
+    private suspend fun startInstallation(file: File, packageName: String) {
+        val session = withContext(Dispatchers.IO) {
+            ackpineInstaller.createSession(Uri.fromFile(file)) {
+                confirmation = Confirmation.IMMEDIATE
+            }
+        }
+        withContext(Dispatchers.Main) {
+            installerPkgName = packageName
+        }
+        awaitInstallation(session)
+    }
 
-            val currentPackageInfo = pm.getPackageInfo(outputFile)
-                ?: throw Exception("Failed to load application info")
-
-            // If the app is currently installed
-            val existingPackageInfo = pm.getPackageInfo(currentPackageInfo.packageName)
-            if (existingPackageInfo != null) {
-                // Check if the app version is less than the installed version
-                if (pm.getVersionCode(currentPackageInfo) < pm.getVersionCode(existingPackageInfo)) {
-                    // Exit if the selected app version is less than the installed version
-                    packageInstallerStatus = PackageInstaller.STATUS_FAILURE_CONFLICT
-                    return@launch
+    private suspend fun awaitInstallation(session: ProgressSession<InstallFailure>) = withContext(
+        Dispatchers.Main
+    ) {
+        val result = installerCoroutineScope.async {
+            try {
+                installerSessionId = ParcelUuid(session.id)
+                withContext(Dispatchers.IO) {
+                    session.await()
                 }
+            } finally {
+                installerSessionId = null
+            }
+        }.await()
+
+        when (result) {
+            is Session.State.Failed<InstallFailure> -> {
+                result.failure.message?.let(logger::trace)
+                packageInstallerStatus = result.failure.asCode()
             }
 
-            when (installType) {
-                InstallType.DEFAULT -> {
-                    // Check if the app is mounted as root
-                    // If it is, unmount it first, silently
-                    if (rootInstaller.hasRootAccess() && rootInstaller.isAppMounted(packageName)) {
-                        rootInstaller.unmount(packageName)
-                    }
+            Session.State.Succeeded -> {
+                app.toast(app.getString(R.string.install_app_success))
+                installedPackageName = installerPkgName
+                installedAppRepository.addOrUpdate(
+                    installerPkgName,
+                    packageName,
+                    input.selectedApp.version
+                        ?: withContext(Dispatchers.IO) { pm.getPackageInfo(outputFile)?.versionName!! },
+                    InstallType.DEFAULT,
+                    input.selectedPatches
+                )
+            }
+        }
+    }
 
-                    // Install regularly
-                    pm.installApp(listOf(outputFile))
-                    pmInstallStarted = true
+    fun install(installType: InstallType) = viewModelScope.launch {
+        isInstalling = true
+        var needsRootUninstall = false
+        try {
+            uiSafe(app, R.string.install_app_fail, "Failed to install") {
+                val currentPackageInfo =
+                    withContext(Dispatchers.IO) { pm.getPackageInfo(outputFile) }
+                        ?: throw Exception("Failed to load application info")
+
+                // If the app is currently installed
+                val existingPackageInfo =
+                    withContext(Dispatchers.IO) { pm.getPackageInfo(currentPackageInfo.packageName) }
+                if (existingPackageInfo != null) {
+                    // Check if the app version is less than the installed version
+                    if (
+                        pm.getVersionCode(currentPackageInfo) < pm.getVersionCode(
+                            existingPackageInfo
+                        )
+                    ) {
+                        // Exit if the selected app version is less than the installed version
+                        packageInstallerStatus = AndroidPackageInstaller.STATUS_FAILURE_CONFLICT
+                        return@launch
+                    }
                 }
 
-                InstallType.MOUNT -> {
-                    try {
-                        val packageInfo = pm.getPackageInfo(outputFile)
-                            ?: throw Exception("Failed to load application info")
+                when (installType) {
+                    InstallType.DEFAULT -> {
+                        // Check if the app is mounted as root
+                        // If it is, unmount it first, silently
+                        if (rootInstaller.hasRootAccess() && rootInstaller.isAppMounted(packageName)) {
+                            rootInstaller.unmount(packageName)
+                        }
+
+                        // Install regularly
+                        startInstallation(outputFile, currentPackageInfo.packageName)
+                    }
+
+                    InstallType.MOUNT -> {
                         val label = with(pm) {
-                            packageInfo.label()
+                            currentPackageInfo.label()
                         }
 
                         // Check for base APK, first check if the app is already installed
@@ -417,15 +448,17 @@ class PatcherViewModel(
                             // If the app is not installed, check if the output file is a base apk
                             if (currentPackageInfo.splitNames.isNotEmpty()) {
                                 // Exit if there is no base APK package
-                                packageInstallerStatus = PackageInstaller.STATUS_FAILURE_INVALID
+                                packageInstallerStatus =
+                                    AndroidPackageInstaller.STATUS_FAILURE_INVALID
                                 return@launch
                             }
                         }
 
                         val inputVersion = input.selectedApp.version
-                            ?: inputFile?.let(pm::getPackageInfo)?.versionName
+                            ?: withContext(Dispatchers.IO) { inputFile?.let(pm::getPackageInfo)?.versionName }
                             ?: throw Exception("Failed to determine input APK version")
 
+                        needsRootUninstall = true
                         // Install as root
                         rootInstaller.install(
                             outputFile,
@@ -436,7 +469,7 @@ class PatcherViewModel(
                         )
 
                         installedAppRepository.addOrUpdate(
-                            packageInfo.packageName,
+                            currentPackageInfo.packageName,
                             packageName,
                             inputVersion,
                             InstallType.MOUNT,
@@ -448,21 +481,20 @@ class PatcherViewModel(
                         installedPackageName = packageName
 
                         app.toast(app.getString(R.string.install_app_success))
-                    } catch (e: Exception) {
-                        Log.e(tag, "Failed to install as root", e)
-                        app.toast(app.getString(R.string.install_app_fail, e.simpleMessage()))
-                        try {
-                            rootInstaller.uninstall(packageName)
-                        } catch (_: Exception) {
-                        }
+                        needsRootUninstall = false
                     }
                 }
             }
-        } catch (e: Exception) {
-            Log.e(tag, "Failed to install", e)
-            app.toast(app.getString(R.string.install_app_fail, e.simpleMessage()))
         } finally {
-            if (!pmInstallStarted) isInstalling = false
+            isInstalling = false
+            if (needsRootUninstall) {
+                try {
+                    withContext(NonCancellable) {
+                        rootInstaller.uninstall(packageName)
+                    }
+                } catch (_: Exception) {
+                }
+            }
         }
     }
 
@@ -473,12 +505,27 @@ class PatcherViewModel(
 
     override fun reinstall() {
         viewModelScope.launch {
-            uiSafe(app, R.string.reinstall_app_fail, "Failed to reinstall") {
-                pm.getPackageInfo(outputFile)?.packageName?.let { pm.uninstallPackage(it) }
-                    ?: throw Exception("Failed to load application info")
-
-                pm.installApp(listOf(outputFile))
+            try {
                 isInstalling = true
+                uiSafe(app, R.string.reinstall_app_fail, "Failed to reinstall") {
+                    val pkgName = withContext(Dispatchers.IO) {
+                        pm.getPackageInfo(outputFile)?.packageName
+                            ?: throw Exception("Failed to load application info")
+                    }
+
+                    when (val result = pm.uninstallPackage(pkgName)) {
+                        is Session.State.Failed<UninstallFailure> -> {
+                            result.failure.message?.let(logger::trace)
+                            packageInstallerStatus = result.failure.asCode()
+                            return@launch
+                        }
+
+                        Session.State.Succeeded -> {}
+                    }
+                    startInstallation(outputFile, pkgName)
+                }
+            } finally {
+                isInstalling = false
             }
         }
     }

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

@@ -1,18 +1,13 @@
 package app.revanced.manager.ui.viewmodel
 
 import android.app.Application
-import android.content.BroadcastReceiver
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.content.pm.PackageInstaller
+import android.net.Uri
 import androidx.annotation.StringRes
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableLongStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
-import androidx.core.content.ContextCompat
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import app.revanced.manager.R
@@ -21,8 +16,6 @@ import app.revanced.manager.data.platform.NetworkInfo
 import app.revanced.manager.network.api.ReVancedAPI
 import app.revanced.manager.network.dto.ReVancedAsset
 import app.revanced.manager.network.service.HttpService
-import app.revanced.manager.service.InstallService
-import app.revanced.manager.util.PM
 import app.revanced.manager.util.toast
 import app.revanced.manager.util.uiSafe
 import io.ktor.client.plugins.onDownload
@@ -31,7 +24,14 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import org.koin.core.component.KoinComponent
+import org.koin.core.component.get
 import org.koin.core.component.inject
+import ru.solrudev.ackpine.installer.InstallFailure
+import ru.solrudev.ackpine.installer.PackageInstaller
+import ru.solrudev.ackpine.installer.createSession
+import ru.solrudev.ackpine.session.Session
+import ru.solrudev.ackpine.session.await
+import ru.solrudev.ackpine.session.parameters.Confirmation
 
 class UpdateViewModel(
     private val downloadOnScreenEntry: Boolean
@@ -39,10 +39,11 @@ class UpdateViewModel(
     private val app: Application by inject()
     private val reVancedAPI: ReVancedAPI by inject()
     private val http: HttpService by inject()
-    private val pm: PM by inject()
     private val networkInfo: NetworkInfo by inject()
     private val fs: Filesystem by inject()
+    private val ackpineInstaller: PackageInstaller = get()
 
+    // TODO: save state to handle process death.
     var downloadedSize by mutableLongStateOf(0L)
         private set
     var totalSize by mutableLongStateOf(0L)
@@ -62,14 +63,17 @@ class UpdateViewModel(
         private set
 
     private val location = fs.tempDir.resolve("updater.apk")
-    private val job = viewModelScope.launch {
-        uiSafe(app, R.string.download_manager_failed, "Failed to download ReVanced Manager") {
-            releaseInfo = reVancedAPI.getAppUpdate() ?: throw Exception("No update available")
 
-            if (downloadOnScreenEntry) {
-                downloadUpdate()
-            } else {
-                state = State.CAN_DOWNLOAD
+    init {
+        viewModelScope.launch {
+            uiSafe(app, R.string.download_manager_failed, "Failed to download ReVanced Manager") {
+                releaseInfo = reVancedAPI.getAppUpdate() ?: throw Exception("No update available")
+
+                if (downloadOnScreenEntry) {
+                    downloadUpdate()
+                } else {
+                    state = State.CAN_DOWNLOAD
+                }
             }
         }
     }
@@ -98,50 +102,36 @@ class UpdateViewModel(
 
     fun installUpdate() = viewModelScope.launch {
         state = State.INSTALLING
+        val result = withContext(Dispatchers.IO) {
+            ackpineInstaller.createSession(Uri.fromFile(location)) {
+                confirmation = Confirmation.IMMEDIATE
+            }.await()
+        }
 
-        pm.installApp(listOf(location))
-    }
-
-    private val installBroadcastReceiver = object : BroadcastReceiver() {
-        override fun onReceive(context: Context?, intent: Intent?) {
-            intent?.let {
-                val pmStatus = intent.getIntExtra(InstallService.EXTRA_INSTALL_STATUS, -999)
-                val extra =
-                    intent.getStringExtra(InstallService.EXTRA_INSTALL_STATUS_MESSAGE)!!
-
-                when(pmStatus) {
-                    PackageInstaller.STATUS_SUCCESS -> {
-                        app.toast(app.getString(R.string.install_app_success))
-                        state = State.SUCCESS
-                    }
-                    PackageInstaller.STATUS_FAILURE_ABORTED -> {
-                        state = State.CAN_INSTALL
-                    }
-                    else -> {
-                        app.toast(app.getString(R.string.install_app_fail, extra))
-                        installError = extra
-                        state = State.FAILED
-                    }
+        when (result) {
+            is Session.State.Failed<InstallFailure> -> when (val failure = result.failure) {
+                is InstallFailure.Aborted -> state = State.CAN_INSTALL
+                else -> {
+                    val msg = failure.message.orEmpty()
+                    app.toast(app.getString(R.string.install_app_fail, msg))
+                    installError = msg
+                    state = State.FAILED
                 }
             }
+
+            Session.State.Succeeded -> {
+                app.toast(app.getString(R.string.install_app_success))
+                state = State.SUCCESS
+            }
         }
     }
 
-    init {
-        ContextCompat.registerReceiver(app, installBroadcastReceiver, IntentFilter().apply {
-            addAction(InstallService.APP_INSTALL_ACTION)
-        }, ContextCompat.RECEIVER_NOT_EXPORTED)
-    }
-
     override fun onCleared() {
         super.onCleared()
-        app.unregisterReceiver(installBroadcastReceiver)
-
-        job.cancel()
         location.delete()
     }
 
-    enum class State(@StringRes val title: Int) {
+    enum class State(@param:StringRes val title: Int) {
         CAN_DOWNLOAD(R.string.update_available),
         DOWNLOADING(R.string.downloading_manager_update),
         CAN_INSTALL(R.string.ready_to_install_update),

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

@@ -0,0 +1,30 @@
+package app.revanced.manager.util
+
+import android.annotation.SuppressLint
+import android.content.pm.PackageInstaller
+import ru.solrudev.ackpine.installer.InstallFailure
+import ru.solrudev.ackpine.uninstaller.UninstallFailure
+
+/**
+ * Converts an Ackpine installation failure into a PM status code
+ */
+fun InstallFailure.asCode() = when (this) {
+    is InstallFailure.Aborted -> PackageInstaller.STATUS_FAILURE_ABORTED
+    is InstallFailure.Blocked -> PackageInstaller.STATUS_FAILURE_BLOCKED
+    is InstallFailure.Conflict -> PackageInstaller.STATUS_FAILURE_CONFLICT
+    is InstallFailure.Incompatible -> PackageInstaller.STATUS_FAILURE_INCOMPATIBLE
+    is InstallFailure.Invalid -> PackageInstaller.STATUS_FAILURE_INVALID
+    is InstallFailure.Storage -> PackageInstaller.STATUS_FAILURE_STORAGE
+    is InstallFailure.Timeout -> @SuppressLint("InlinedApi") PackageInstaller.STATUS_FAILURE_TIMEOUT
+    else -> PackageInstaller.STATUS_FAILURE
+}
+
+/**
+ * Converts an Ackpine uninstallation failure into a PM status code
+ */
+fun UninstallFailure.asCode() = when (this) {
+    is UninstallFailure.Aborted -> PackageInstaller.STATUS_FAILURE_ABORTED
+    is UninstallFailure.Blocked -> PackageInstaller.STATUS_FAILURE_BLOCKED
+    is UninstallFailure.Conflict -> PackageInstaller.STATUS_FAILURE_CONFLICT
+    else -> PackageInstaller.STATUS_FAILURE
+}

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

@@ -2,11 +2,8 @@ package app.revanced.manager.util
 
 import android.annotation.SuppressLint
 import android.app.Application
-import android.app.PendingIntent
-import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageInfo
-import android.content.pm.PackageInstaller
 import android.content.pm.PackageManager
 import android.content.pm.PackageManager.PackageInfoFlags
 import android.content.pm.PackageManager.NameNotFoundException
@@ -16,8 +13,6 @@ import android.os.Build
 import android.os.Parcelable
 import androidx.compose.runtime.Immutable
 import app.revanced.manager.domain.repository.PatchBundleRepository
-import app.revanced.manager.service.InstallService
-import app.revanced.manager.service.UninstallService
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.async
@@ -25,10 +20,13 @@ import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.withContext
 import kotlinx.parcelize.Parcelize
+import ru.solrudev.ackpine.session.await
+import ru.solrudev.ackpine.session.parameters.Confirmation
+import ru.solrudev.ackpine.uninstaller.PackageUninstaller
+import ru.solrudev.ackpine.uninstaller.createSession
+import ru.solrudev.ackpine.uninstaller.parameters.UninstallParametersDsl
 import java.io.File
 
-private const val byteArraySize = 1024 * 1024 // Because 1,048,576 is not readable
-
 @Immutable
 @Parcelize
 data class AppInfo(
@@ -40,7 +38,8 @@ data class AppInfo(
 @SuppressLint("QueryPermissionsNeeded")
 class PM(
     private val app: Application,
-    patchBundleRepository: PatchBundleRepository
+    patchBundleRepository: PatchBundleRepository,
+    private val uninstaller: PackageUninstaller
 ) {
     private val scope = CoroutineScope(Dispatchers.IO)
 
@@ -145,17 +144,11 @@ class PM(
         false
     )
 
-    suspend fun installApp(apks: List<File>) = withContext(Dispatchers.IO) {
-        val packageInstaller = app.packageManager.packageInstaller
-        packageInstaller.openSession(packageInstaller.createSession(sessionParams)).use { session ->
-            apks.forEach { apk -> session.writeApk(apk) }
-            session.commit(app.installIntentSender)
-        }
-    }
-
-    fun uninstallPackage(pkg: String) {
-        val packageInstaller = app.packageManager.packageInstaller
-        packageInstaller.uninstall(pkg, app.uninstallIntentSender)
+    suspend fun uninstallPackage(pkg: String, config: UninstallParametersDsl.() -> Unit = {}) = withContext(Dispatchers.IO) {
+        uninstaller.createSession(pkg) {
+            confirmation = Confirmation.IMMEDIATE
+            config()
+        }.await()
     }
 
     fun launch(pkg: String) = app.packageManager.getLaunchIntentForPackage(pkg)?.let {
@@ -164,44 +157,4 @@ class PM(
     }
 
     fun canInstallPackages() = app.packageManager.canRequestPackageInstalls()
-
-    private fun PackageInstaller.Session.writeApk(apk: File) {
-        apk.inputStream().use { inputStream ->
-            openWrite(apk.name, 0, apk.length()).use { outputStream ->
-                inputStream.copyTo(outputStream, byteArraySize)
-                fsync(outputStream)
-            }
-        }
-    }
-
-    private val intentFlags
-        get() = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
-            PendingIntent.FLAG_MUTABLE
-        else
-            0
-
-    private val sessionParams
-        get() = PackageInstaller.SessionParams(
-            PackageInstaller.SessionParams.MODE_FULL_INSTALL
-        ).apply {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
-                setRequestUpdateOwnership(true)
-            setInstallReason(PackageManager.INSTALL_REASON_USER)
-        }
-
-    private val Context.installIntentSender
-        get() = PendingIntent.getService(
-            this,
-            0,
-            Intent(this, InstallService::class.java),
-            intentFlags
-        ).intentSender
-
-    private val Context.uninstallIntentSender
-        get() = PendingIntent.getService(
-            this,
-            0,
-            Intent(this, UninstallService::class.java),
-            intentFlags
-        ).intentSender
 }

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

@@ -33,6 +33,7 @@ import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
 import app.revanced.manager.R
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
@@ -82,6 +83,8 @@ fun Context.toast(string: String, duration: Int = Toast.LENGTH_SHORT) {
 inline fun uiSafe(context: Context, @StringRes toastMsg: Int, logMsg: String, block: () -> Unit) {
     try {
         block()
+    } catch (e: CancellationException) {
+        throw e
     } catch (error: Exception) {
         // You can only toast on the main thread.
         GlobalScope.launch(Dispatchers.Main) {

gradle/libs.versions.toml

@@ -37,6 +37,7 @@ kotlin-process = "1.5.1"
 hidden-api-stub = "4.3.3"
 binary-compatibility-validator = "0.17.0"
 semver-parser = "3.0.0"
+ackpine = "0.18.5"
 
 [libraries]
 # AndroidX Core
@@ -133,6 +134,10 @@ compose-icons-fontawesome = { group = "com.github.BenjaminHalko.compose-icons",
 # Semantic versioning parser
 semver-parser = { module = "io.github.z4kn4fein:semver", version.ref = "semver-parser" }
 
+# Ackpine
+ackpine-core = { module = "ru.solrudev.ackpine:ackpine-core", version.ref = "ackpine" }
+ackpine-ktx = { module = "ru.solrudev.ackpine:ackpine-ktx", version.ref = "ackpine" }
+
 [plugins]
 android-application = { id = "com.android.application", version.ref = "android-gradle-plugin" }
 android-library = { id = "com.android.library", version.ref = "android-gradle-plugin" }