feat: Add installer selection and Root support

This commit adds the ability to select the installation method. It also
includes:

- Added root support using the `pm` command. - Integrated the Shizuku
installer. - Added a new Settings UI for choosing an installer.

README.md

@@ -53,7 +53,7 @@ APK output: `app/build/outputs/apk/debug/app-debug.apk`.
 You can fully tailor the appearance:
 
 - App name: edit `app/src/main/res/values/strings.xml` — ensure the UI uses `@string/app_name`.
-- Icons: swap `app/src/main/res/drawable/ic_rounded_shiggy.xml` and `ic_discord_shiggy.xml` with your vector or PNG.
+- Icons: swap `app/src/main/res/drawable/ic_rounded_shiggy.xml` and `app/src/main/res/drawable/ic_discord_aliucord.xml` with your vector or PNG.
 - Colors: use `colors.xml` to apply a new palette.
 - Glyph sizing: vector drawables support `<group android:scaleX="" android:scaleY="" android:translateX="" android:translateY="">`. To center an element after scaling, compute translation as:
 

app/build.gradle.kts

@@ -9,6 +9,7 @@ plugins {
     alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.parcelize)
     alias(libs.plugins.kotlin.serialization)
+    alias(libs.plugins.hiddenApi.refine)
 }
 
 val isRelease = System.getenv("RELEASE")?.toBoolean() ?: false
@@ -186,12 +187,16 @@ dependencies {
     implementation(libs.binaryResources)
     implementation(libs.diff)
     implementation(libs.microg)
+    implementation(libs.bundles.shizuku)
     implementation(libs.smali)
     implementation(libs.baksmali)
     implementation(libs.compose.pipette)
     implementation(libs.compose.shimmer)
     implementation(libs.zip)
 
+    compileOnly(libs.hiddenApi.stub)
+    implementation(libs.hiddenApi.refine)
+    implementation(libs.hiddenApi.bypass)
     coreLibraryDesugaring(libs.desugaring)
 }
 

app/src/main/AndroidManifest.xml

@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8" ?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools">
-    xmlns:tools="http://schemas.android.com/tools">
 
   <uses-permission android:name="android.permission.INTERNET" />
   <uses-permission android:name="android.permission.WAKE_LOCK" />
@@ -14,45 +13,48 @@
   <uses-permission android:name="android.permission.UPDATE_PACKAGES_WITHOUT_USER_ACTION" />
   <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
 
-  <uses-permission
+  <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" tools:ignore="ScopedStorage" />
-      android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+  <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" tools:ignore="QueryAllPackagesPermission" />
-      tools:ignore="ScopedStorage" />
-  <uses-permission
-      android:name="android.permission.QUERY_ALL_PACKAGES"
-      tools:ignore="QueryAllPackagesPermission" />
 
   <application
     android:name="com.aliucord.manager.ManagerApplication"
     android:icon="@mipmap/ic_launcher"
-
     android:label="@string/app_name"
     android:largeHeap="true"
     android:requestLegacyExternalStorage="true"
     android:roundIcon="@mipmap/ic_launcher_round"
     android:supportsRtl="true"
-      android:theme="@style/Theme.AppCompat.NoActionBar">
+    android:theme="@style/Theme.AppCompat.NoActionBar"
+  >
 
-    <receiver
+    <receiver android:name="com.aliucord.manager.installers.pm.PMIntentReceiver" android:exported="false" />
-        android:name="com.aliucord.manager.installers.pm.PMIntentReceiver"
-        android:exported="false" />
 
     <provider
       android:name="androidx.core.content.FileProvider"
       android:authorities="${applicationId}.provider"
       android:exported="false"
-        android:grantUriPermissions="true">
+      android:grantUriPermissions="true"
-      <meta-data
+    >
-          android:name="android.support.FILE_PROVIDER_PATHS"
+      <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths" />
-          android:resource="@xml/provider_paths" />
     </provider>
 
+    <provider
+      android:name="rikka.shizuku.ShizukuProvider"
+      android:authorities="${applicationId}.shizuku"
+      android:enabled="true"
+      android:exported="true"
+      android:multiprocess="false"
+      android:permission="android.permission.INTERACT_ACROSS_USERS_FULL"
+    />
+
     <activity
       android:name="com.aliucord.manager.MainActivity"
       android:exported="true"
       android:launchMode="singleTask"
       android:screenOrientation="portrait"
       android:theme="@style/Theme.AliucordManager.SplashScreen"
-        tools:ignore="DiscouragedApi,LockedOrientationActivity">
+      tools:ignore="DiscouragedApi,LockedOrientationActivity"
+    >
       <intent-filter>
         <action android:name="android.intent.action.MAIN" />
 

app/src/main/kotlin/com/aliucord/manager/ManagerApplication.kt

@@ -20,6 +20,8 @@ import com.aliucord.manager.ui.screens.patchopts.PatchOptionsModel
 import com.aliucord.manager.ui.screens.plugins.PluginsModel
 import com.aliucord.manager.ui.screens.settings.SettingsModel
 import com.aliucord.manager.ui.widgets.updater.UpdaterViewModel
+import com.aliucord.manager.installers.root.RootInstaller
+import com.aliucord.manager.installers.shizuku.ShizukuInstaller
 import kotlinx.coroutines.Dispatchers
 import org.koin.android.ext.koin.androidContext
 import org.koin.core.context.startKoin
@@ -54,11 +56,11 @@ class ManagerApplication : Application() {
 
             // UI Models
             modules(module {
-                factoryOf(::HomeModel)
+                factory { HomeModel(get<Application>(), get<AliucordGithubService>(), get<AliucordMavenService>(), get<ShiggyGithubService>(), get<RNATrackerService>(), get<kotlinx.serialization.json.Json>(), get<com.aliucord.manager.manager.PreferencesManager>()) }
                 factoryOf(::PluginsModel)
                 factoryOf(::AboutModel)
                 factoryOf(::PatchingScreenModel)
-                factoryOf(::SettingsModel)
+                factory { SettingsModel(get<Application>(), get<PathManager>(), get<PreferencesManager>(), get<InstallerManager>()) }
                 factoryOf(::PatchOptionsModel)
                 factoryOf(::IconOptionsModel)
                 factoryOf(::LogScreenModel)
@@ -80,7 +82,9 @@ class ManagerApplication : Application() {
 
             // Installers
             modules(module {
-                singleOf(::PMInstaller)
+                single { PMInstaller(get()) }
+                single { RootInstaller() }
+                singleOf(::ShizukuInstaller)
             })
         }
 

app/src/main/kotlin/com/aliucord/manager/installers/Installer.kt

@@ -11,7 +11,7 @@ interface Installer {
      * @param apks All APKs (including any splits) to merge into a single install.
      * @param silent If this is an update, then the update will occur without user interaction.
      */
-    fun install(apks: List<File>, silent: Boolean = true)
+    suspend fun install(apks: List<File>, silent: Boolean = true)
 
     /**
      * Starts an installation and waits for it to finish with a result. A toast will be shown for all result states.

app/src/main/kotlin/com/aliucord/manager/installers/InstallerError.kt

@@ -0,0 +1,7 @@
+package com.aliucord.manager.installers
+
+import android.os.Parcelable
+
+interface InstallerError : Parcelable {
+    val message: String
+}

app/src/main/kotlin/com/aliucord/manager/installers/pm/PMInstaller.kt

@@ -1,17 +1,11 @@
 package com.aliucord.manager.installers.pm
 
 import android.app.Application
-import android.app.PendingIntent
+import android.content.pm.PackageInstaller
-import android.content.Intent
+import android.content.pm.PackageManager
-import android.content.pm.*
-import android.content.pm.PackageInstaller.SessionParams
-import android.os.Build
-import android.os.Process
 import android.util.Log
-import androidx.core.content.ContextCompat
-import com.aliucord.manager.installers.Installer
-import com.aliucord.manager.util.isMiui
 import dev.shiggy.manager.BuildConfig
+import com.aliucord.manager.installers.Installer
 import kotlinx.coroutines.suspendCancellableCoroutine
 import java.io.File
 import kotlin.coroutines.resume
@@ -32,70 +26,64 @@ class PMInstaller(
         }
     }
 
-    override fun install(apks: List<File>, silent: Boolean) {
+    override suspend fun install(apks: List<File>, silent: Boolean) {
-        startInstall(createInstallSession(silent), apks, false)
+        val sessionId = createInstallSession(silent)
+
+        PMUtils.startInstall(
+            context = context,
+            session = _packageInstaller.openSession(sessionId),
+            sessionId = sessionId,
+            apks = apks,
+            relay = false,
+        )
     }
 
     override suspend fun waitInstall(apks: List<File>, silent: Boolean) = suspendCancellableCoroutine { continuation ->
         // Create a new install session
         val sessionId = createInstallSession(silent)
 
-        // This will receive parsed data forwarded by PMIntentReceiver
+        // Create and register a result receiver
-        val relayReceiver = PMResultReceiver(
+        val relayReceiver = PMUtils.registerRelayReceiver(
+            context = context,
             sessionId = sessionId,
             isUninstall = false,
-            onResult = { continuation.resume(it) },
+            onResult = continuation::resume,
         )
 
-        ContextCompat.registerReceiver(
+        // Unregister PMResultReceiver when this coroutine finishes or errors
-            /* context = */ context,
+        // Explicitly cancel the install session if it did not finish.
-            /* receiver = */ relayReceiver,
+        continuation.invokeOnCancellation {
-            /* filter = */ PMResultReceiver.intentFilter,
-            /* flags = */ ContextCompat.RECEIVER_NOT_EXPORTED,
-        )
-
-        // Unregister PMResultReceiver when this coroutine finishes or error occurs
-        // Additionally, cancel the install session entirely
-        continuation.invokeOnCancellation { error ->
             context.unregisterReceiver(relayReceiver)
-            context.packageManager.packageInstaller.abandonSession(sessionId)
+            _packageInstaller.abandonSession(sessionId)
         }
 
-        startInstall(sessionId, apks, relay = true)
+        PMUtils.startInstall(
+            context = context,
+            session = _packageInstaller.openSession(sessionId),
+            sessionId = sessionId,
+            apks = apks,
+            relay = true,
+        )
     }
 
     override suspend fun waitUninstall(packageName: String) = suspendCancellableCoroutine { continuation ->
-        val callbackIntent = Intent(context, PMIntentReceiver::class.java)
+        // Create and register a result receiver
-            .putExtra(PMIntentReceiver.EXTRA_SESSION_ID, -1)
+        val relayReceiver = PMUtils.registerRelayReceiver(
-            .putExtra(PMIntentReceiver.EXTRA_RELAY_ENABLED, true)
+            context = context,
-
-        val pendingIntent = PendingIntent.getBroadcast(
-            /* context = */ context,
-            /* requestCode = */ 0,
-            /* intent = */ callbackIntent,
-            /* flags = */ PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
-        )
-
-        // This will receive parsed data forwarded by PMIntentReceiver
-        val relayReceiver = PMResultReceiver(
             sessionId = -1,
             isUninstall = true,
-            onResult = { continuation.resume(it) },
+            onResult = continuation::resume,
         )
 
-        ContextCompat.registerReceiver(
+        // Unregister PMResultReceiver when this coroutine finishes or errors
-            /* context = */ context,
+        continuation.invokeOnCancellation {
-            /* receiver = */ relayReceiver,
-            /* filter = */ PMResultReceiver.intentFilter,
-            /* flags = */ ContextCompat.RECEIVER_NOT_EXPORTED,
-        )
-
-        // Unregister PMResultReceiver when this coroutine is cancelled early
-        continuation.invokeOnCancellation { error ->
             context.unregisterReceiver(relayReceiver)
         }
 
-        _packageInstaller.uninstall(packageName, pendingIntent.intentSender)
+        _packageInstaller.uninstall(
+            /* packageName = */ packageName,
+            /* statusReceiver = */ PMUtils.createUninstallRelayingIntent(context).intentSender,
+        )
     }
 
     /**
@@ -104,56 +92,6 @@ class PMInstaller(
      * @return The open install session id.
      */
     private fun createInstallSession(silent: Boolean): Int {
-        val params = SessionParams(SessionParams.MODE_FULL_INSTALL).apply {
+        return _packageInstaller.createSession(PMUtils.createInstallSessionParams(silent = silent))
-            setInstallLocation(PackageInfo.INSTALL_LOCATION_AUTO)
-
-            if (Build.VERSION.SDK_INT >= 24) setOriginatingUid(Process.myUid())
-            if (Build.VERSION.SDK_INT >= 26) setInstallReason(PackageManager.INSTALL_REASON_USER)
-
-            if (Build.VERSION.SDK_INT >= 31) {
-                setInstallScenario(PackageManager.INSTALL_SCENARIO_FAST)
-
-                // Allegedly MIUI is not happy with silent installs
-                if (silent && !isMiui()) {
-                    setRequireUserAction(SessionParams.USER_ACTION_NOT_REQUIRED)
-                }
-            }
-
-            if (Build.VERSION.SDK_INT >= 34) setPackageSource(PackageInstaller.PACKAGE_SOURCE_OTHER)
-        }
-
-        return context.packageManager.packageInstaller.createSession(params)
-    }
-
-    /**
-     * Start a [PackageInstaller] session for installation.
-     * @param apks The apks to install
-     * @param relay Whether to use the [PMResultReceiver] flow.
-     * @return The [PendingIntent] that was registered to the [PackageInstaller.Session]
-     */
-    private fun startInstall(sessionId: Int, apks: List<File>, relay: Boolean) {
-        val callbackIntent = Intent(context, PMIntentReceiver::class.java)
-            .putExtra(PMIntentReceiver.EXTRA_SESSION_ID, sessionId)
-            .putExtra(PMIntentReceiver.EXTRA_RELAY_ENABLED, relay)
-
-        val pendingIntent = PendingIntent.getBroadcast(
-            /* context = */ context,
-            /* requestCode = */ 0,
-            /* intent = */ callbackIntent,
-            /* flags = */ PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
-        )
-
-        _packageInstaller.openSession(sessionId).use { session ->
-            val bufferSize = 1 * 1024 * 1024 // 1MiB
-
-            for (apk in apks) {
-                session.openWrite(apk.name, 0, apk.length()).use { outStream ->
-                    apk.inputStream().use { it.copyTo(outStream, bufferSize) }
-                    session.fsync(outStream)
-                }
-            }
-
-            session.commit(pendingIntent.intentSender)
-        }
     }
 }

app/src/main/kotlin/com/aliucord/manager/installers/pm/PMUtils.kt

@@ -0,0 +1,143 @@
+package com.aliucord.manager.installers.pm
+
+import android.annotation.SuppressLint
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInstaller
+import android.content.pm.PackageInstaller.SessionParams
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Process
+import androidx.core.content.ContextCompat
+import com.aliucord.manager.installers.InstallerResult
+import com.aliucord.manager.util.isMiui
+import java.io.File
+
+/**
+ * Shared functionality between all types of installers that directly interface with the [PackageInstaller] API.
+ */
+object PMUtils {
+    /**
+     * Creates install sessions params for [PackageInstaller].
+     * @param silent If this is an update, then the update will occur without user interaction.
+     */
+    @Suppress("DEPRECATION")
+    fun createInstallSessionParams(silent: Boolean): SessionParams {
+        return SessionParams(SessionParams.MODE_FULL_INSTALL).apply {
+            if (Build.VERSION.SDK_INT >= 24) setOriginatingUid(Process.myUid())
+            if (Build.VERSION.SDK_INT >= 26) setInstallReason(PackageManager.INSTALL_REASON_USER)
+            if (Build.VERSION.SDK_INT >= 30) setAutoRevokePermissionsMode(false)
+
+            if (Build.VERSION.SDK_INT >= 31) {
+                setInstallScenario(PackageManager.INSTALL_SCENARIO_FAST)
+
+                // Allegedly MIUI is not happy with silent installs
+                if (silent && !isMiui()) {
+                    setRequireUserAction(SessionParams.USER_ACTION_NOT_REQUIRED)
+                }
+            }
+
+            if (Build.VERSION.SDK_INT >= 34) setPackageSource(PackageInstaller.PACKAGE_SOURCE_OTHER)
+        }
+    }
+
+    /**
+     * Registers a [PMResultReceiver] to receive results relayed by [PMIntentReceiver], to return the state
+     * back to the application.
+     *
+     * @param context Android context.
+     * @param sessionId The [PackageInstaller] install session ID to filter for.
+     * @param isUninstall Whether this operation is an uninstallation.
+     * @param onResult A callback lambda providing the parsed installation result.
+     * @return The receiver that was registered. This should be unregistered manually, such as
+     * upon the cancellation of the registering coroutine.
+     */
+    fun registerRelayReceiver(
+        context: Context,
+        sessionId: Int,
+        isUninstall: Boolean,
+        onResult: (InstallerResult) -> Unit,
+    ): PMResultReceiver {
+        // This will receive parsed data forwarded by PMIntentReceiver
+        val relayReceiver = PMResultReceiver(
+            sessionId = sessionId,
+            isUninstall = isUninstall,
+            onResult = onResult,
+        )
+
+        ContextCompat.registerReceiver(
+            /* context = */ context,
+            /* receiver = */ relayReceiver,
+            /* filter = */ PMResultReceiver.intentFilter,
+            /* flags = */ ContextCompat.RECEIVER_NOT_EXPORTED,
+        )
+
+        return relayReceiver
+    }
+
+    // TODO: Install progress?
+    //       PackageInstaller.Session#setStagingProgress
+    //       PackageInstaller.SessionCallback#onProgressChanged(int, float)
+
+    /**
+     * Start a [PackageInstaller] session for installation.
+     * @param context Android context
+     * @param session A newly opened install session to be written to. Ones binded through Shizuku also work.
+     * @param sessionId The install session ID of [session].
+     * @param apks The apks to install
+     * @param relay Whether to use the [PMResultReceiver] flow.
+     */
+    fun startInstall(
+        context: Context,
+        session: PackageInstaller.Session,
+        sessionId: Int,
+        apks: List<File>,
+        relay: Boolean,
+    ) {
+        val callbackIntent = Intent(context, PMIntentReceiver::class.java)
+            .putExtra(PMIntentReceiver.EXTRA_SESSION_ID, sessionId)
+            .putExtra(PMIntentReceiver.EXTRA_RELAY_ENABLED, relay)
+
+        val pendingIntent = PendingIntent.getBroadcast(
+            /* context = */ context,
+            /* requestCode = */ 0,
+            /* intent = */ callbackIntent,
+            /* flags = */ PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
+        )
+
+        session.use { session ->
+            val bufferSize = 1 * 1024 * 1024 // 1MiB
+
+            for (apk in apks) {
+                session.openWrite(apk.name, 0, apk.length()).use { outStream ->
+                    apk.inputStream().use { it.copyTo(outStream, bufferSize) }
+                    session.fsync(outStream)
+                }
+            }
+
+            @SuppressLint("RequestInstallPackagesPolicy")
+            session.commit(pendingIntent.intentSender)
+        }
+    }
+
+    /**
+     * Creates an uninstallation callback [PendingIntent] that will forward events
+     * to the relaying [PMIntentReceiver]. These events can be captured by registering [PMResultReceiver]
+     * through [registerRelayReceiver].
+     */
+    fun createUninstallRelayingIntent(context: Context): PendingIntent {
+        // FIXME: Conflicting pending intents when multiple simultaneous uninstalls are happening.
+        //        The extras will end up being merged into one pending intent, with only the newest one working.
+        val callbackIntent = Intent(context, PMIntentReceiver::class.java)
+            .putExtra(PMIntentReceiver.EXTRA_SESSION_ID, -1)
+            .putExtra(PMIntentReceiver.EXTRA_RELAY_ENABLED, true)
+
+        return PendingIntent.getBroadcast(
+            /* context = */ context,
+            /* requestCode = */ 0,
+            /* intent = */ callbackIntent,
+            /* flags = */ PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
+        )
+    }
+}

app/src/main/kotlin/com/aliucord/manager/installers/root/RootInstaller.kt

@@ -0,0 +1,75 @@
+package com.aliucord.manager.installers.root
+
+import com.aliucord.manager.installers.Installer
+import com.aliucord.manager.installers.InstallerResult
+import com.aliucord.manager.installers.InstallerResult.Error
+import java.io.File
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+import kotlinx.coroutines.runBlocking
+
+class RootInstaller : Installer {
+    override suspend fun install(apks: List<File>, silent: Boolean) {
+        waitInstall(apks, silent)
+    }
+
+    override suspend fun waitInstall(apks: List<File>, silent: Boolean): InstallerResult {
+        // Create install session
+        val installCommand = StringBuilder("pm install-create")
+        if (silent) {
+            installCommand.append(" -r --user 0")
+        }
+        val output = execute(installCommand.toString())
+        val sessionId = output.substringAfter("Success: created install session [").substringBefore("]").toIntOrNull()
+        if (sessionId == null) {
+            println("RootInstaller: install-create failed: $output")
+            return PMInstallerError("Failed to create install session: $output")
+        }
+
+        // Write each APK to the session
+        for (apk in apks) {
+            val writeCmd = "pm install-write -S ${apk.length()} $sessionId ${apk.name} - < \"${apk.absolutePath}\""
+            val writeOutput = execute(writeCmd)
+            if (!writeOutput.contains("Success")) {
+                println("RootInstaller: install-write failed: $writeOutput")
+                execute("pm install-abandon $sessionId")
+                return PMInstallerError("Failed to write APK: $writeOutput")
+            }
+        }
+
+        // Commit the session
+        val commitOutput = execute("pm install-commit $sessionId")
+        if (!commitOutput.contains("Success")) {
+            println("RootInstaller: install-commit failed: $commitOutput")
+            return PMInstallerError("Failed to commit install session: $commitOutput")
+        }
+
+        return InstallerResult.Success
+    }
+
+    override suspend fun waitUninstall(packageName: String): InstallerResult {
+        val output = execute("pm uninstall $packageName")
+        if (!output.contains("Success")) {
+            println("RootInstaller: uninstall failed: $output")
+            return PMInstallerError("Failed to uninstall: $output")
+        }
+        return InstallerResult.Success
+    }
+
+    private fun execute(command: String): String {
+        return try {
+            val process = ProcessBuilder("su", "-c", command).start()
+            val output = process.inputStream.bufferedReader().readText()
+            process.waitFor()
+            output
+        } catch (e: Exception) {
+            println("RootInstaller: Exception during command execution: ${e.message}")
+            e.toString()
+        }
+    }
+}
+
+@Parcelize
+data class PMInstallerError(private val reason: String) : Error(), Parcelable {
+    override fun getDebugReason(): String = reason
+}

app/src/main/kotlin/com/aliucord/manager/installers/shizuku/ShizukuInstaller.kt

@@ -0,0 +1,278 @@
+package com.aliucord.manager.installers.shizuku
+
+import android.content.Context
+import android.content.pm.*
+import android.content.pm.PackageInstaller.SessionParams
+import android.content.pm.PackageInstallerHidden.SessionParamsHidden
+import android.os.Build
+import com.aliucord.manager.installers.Installer
+import com.aliucord.manager.installers.InstallerResult
+import com.aliucord.manager.installers.pm.PMUtils
+import com.aliucord.manager.util.showToast
+import dev.rikka.tools.refine.Refine
+import dev.shiggy.manager.R
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlinx.coroutines.sync.Mutex
+import org.lsposed.hiddenapibypass.HiddenApiBypass
+import rikka.shizuku.*
+import java.io.File
+import java.util.concurrent.atomic.AtomicBoolean
+import kotlin.coroutines.resume
+import kotlin.random.Random
+
+// Based on https://github.com/Tobi823/ffupdater/blob/9830452fe1cb3b77b28175833c68118a63d5ca69/ffupdater/src/main/java/de/marmaro/krt/ffupdater/installer/impl/ShizukuInstaller.kt
+
+class ShizukuInstaller(private val context: Context) : Installer {
+    private var shizukuPermissionLock = Mutex()
+    private val shizukuAvailable: StateFlow<Boolean?>
+        field = MutableStateFlow(null)
+
+    // Listeners
+    private val onBinderReceived = Shizuku.OnBinderReceivedListener {
+        shizukuAvailable.value = true
+    }
+    private val onBinderDead = Shizuku.OnBinderDeadListener {
+        shizukuAvailable.value = false
+
+        if (shizukuPermissionLock.isLocked)
+            shizukuPermissionLock.unlock()
+    }
+
+    init {
+        Shizuku.addBinderReceivedListenerSticky(onBinderReceived)
+        Shizuku.addBinderDeadListener(onBinderDead)
+    }
+
+    fun stop() {
+        Shizuku.removeBinderReceivedListener(onBinderReceived)
+        Shizuku.removeBinderDeadListener(onBinderDead)
+    }
+
+    /**
+     * Determines whether Shizuku is available and the binder has been retrieved.
+     */
+    fun shizukuAvailable(): Boolean = when (shizukuAvailable.value) {
+        true -> true
+        false -> false
+        null -> {
+            Shizuku.pingBinder().also { shizukuAvailable.value = it }
+        }
+    }
+
+    /**
+     * Checks whether Shizuku permissions have been granted to this app.
+     */
+    fun checkPermissions(): Boolean {
+        if (!shizukuAvailable()) return false
+
+        // Old shizuku does not have permission checks
+        if (Shizuku.isPreV11()) return true
+
+        return Shizuku.checkSelfPermission() == PackageManager.PERMISSION_GRANTED
+    }
+
+    /**
+     * Requests and waits for Shizuku permissions if they have not already been granted.
+     */
+    suspend fun requestPermissions(): Boolean {
+        if (!shizukuAvailable()) return false
+
+        // Lock and check if the previous holder already obtained permissions
+        shizukuPermissionLock.lock()
+        try {
+            if (checkPermissions()) {
+                shizukuPermissionLock.unlock()
+                return true
+            }
+        } catch (_: Exception) {
+            shizukuPermissionLock.unlock()
+        }
+
+        return suspendCancellableCoroutine { continuation ->
+            val currentRequestCode = Random.nextInt()
+            val onPermissionRequestResult = Shizuku.OnRequestPermissionResultListener { requestCode, grantResult ->
+                if (requestCode != currentRequestCode)
+                    return@OnRequestPermissionResultListener
+
+                if (grantResult == PackageManager.PERMISSION_DENIED)
+                    context.showToast(R.string.permissions_shizuku_denied)
+
+                continuation.resume(grantResult == PackageManager.PERMISSION_GRANTED)
+            }
+
+            continuation.invokeOnCancellation {
+                Shizuku.removeRequestPermissionResultListener(onPermissionRequestResult)
+                shizukuPermissionLock.unlock()
+            }
+
+            Shizuku.addRequestPermissionResultListener(onPermissionRequestResult)
+            Shizuku.requestPermission(currentRequestCode)
+        }
+    }
+
+    /**
+     * Gets the Shizuku binder for [IPackageInstaller].
+     */
+    private fun getPackageInstallerBinder(): IPackageInstaller {
+        val iPackageManager = IPackageManager.Stub.asInterface(
+            ShizukuBinderWrapper(SystemServiceHelper.getSystemService("package"))
+        )
+        val iPackageInstaller = IPackageInstaller.Stub.asInterface(
+            ShizukuBinderWrapper(iPackageManager.packageInstaller.asBinder())
+        )
+
+        return iPackageInstaller
+    }
+
+    /**
+     * Gets a binded [PackageInstaller] service wrapper through Shizuku.
+     */
+    private fun getPackageInstaller(): PackageInstaller {
+        val iPackageInstaller = getPackageInstallerBinder()
+
+        val hiddenPackageInstaller = if (Build.VERSION.SDK_INT >= 31) {
+            PackageInstallerHidden(
+                /* installer = */ iPackageInstaller,
+                /* installerPackageName = */ PLAY_PACKAGE_NAME,
+                /* installerAttributionTag = */ null,
+                /* userId = */ 0,
+            )
+        } else if (Build.VERSION.SDK_INT >= 26) {
+            PackageInstallerHidden(
+                /* installer = */ iPackageInstaller,
+                /* installerPackageName = */ PLAY_PACKAGE_NAME,
+                /* userId = */ 0,
+            )
+        } else {
+            PackageInstallerHidden(
+                /* context = */ context,
+                /* pm = */ context.packageManager,
+                /* installer = */ iPackageInstaller,
+                /* installerPackageName = */ PLAY_PACKAGE_NAME,
+                /* userId = */ 0,
+            )
+        }
+        return Refine.unsafeCast(hiddenPackageInstaller)
+    }
+
+    /**
+     * Opens and binds a [PackageInstaller.Session] wrapper through Shizuku.
+     */
+    private fun openSession(sessionId: Int): PackageInstaller.Session {
+        val iPackageInstaller = getPackageInstallerBinder()
+        val iSession = IPackageInstallerSession.Stub.asInterface(
+            ShizukuBinderWrapper(iPackageInstaller.openSession(sessionId).asBinder())
+        )
+        return Refine.unsafeCast(PackageInstallerHidden.SessionHidden(iSession))
+    }
+
+    /**
+     * Creates the [PackageInstaller] session params to be used with Shizuku installs.
+     */
+    private fun createSessionParams(): SessionParams {
+        // Required to change hidden SessionParams flags
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P && !hiddenApiDisabled.getAndSet(true))
+            HiddenApiBypass.addHiddenApiExemptions("Landroid/content", "Landroid/os")
+
+        val params = PMUtils.createInstallSessionParams(silent = true)
+
+        // Add INSTALL_REPLACE_EXISTING flag to session params
+        val paramsHidden = Refine.unsafeCast<SessionParamsHidden>(params)
+        paramsHidden.installFlags = paramsHidden.installFlags or PackageManagerHidden.INSTALL_REPLACE_EXISTING
+
+        return params
+    }
+
+    override suspend fun install(apks: List<File>, silent: Boolean) {
+        if (!requestPermissions())
+            throw IllegalStateException("Shizuku is not available!")
+
+        // Construct install session and create it
+        val params = createSessionParams()
+        val packageInstaller = getPackageInstaller()
+        val sessionId = packageInstaller.createSession(params)
+
+        PMUtils.startInstall(
+            context = context,
+            session = openSession(sessionId),
+            sessionId = sessionId,
+            apks = apks,
+            relay = false,
+        )
+    }
+
+    override suspend fun waitInstall(apks: List<File>, silent: Boolean): InstallerResult {
+        if (!requestPermissions())
+            throw IllegalStateException("Shizuku is not available!")
+
+        return suspendCancellableCoroutine { continuation ->
+            // Construct install session and create it
+            val params = createSessionParams()
+            val packageInstaller = getPackageInstaller()
+            val sessionId = packageInstaller.createSession(params)
+
+            // Create and register a result receiver
+            val relayReceiver = PMUtils.registerRelayReceiver(
+                context = context,
+                sessionId = sessionId,
+                isUninstall = false,
+                onResult = continuation::resume,
+            )
+
+            // Unregister PMResultReceiver when this coroutine finishes or errors
+            // Explicitly cancel the install session if it did not finish.
+            continuation.invokeOnCancellation {
+                context.unregisterReceiver(relayReceiver)
+                packageInstaller.abandonSession(sessionId)
+            }
+
+            PMUtils.startInstall(
+                context = context,
+                session = openSession(sessionId),
+                sessionId = sessionId,
+                apks = apks,
+                relay = true,
+            )
+        }
+    }
+
+    override suspend fun waitUninstall(packageName: String): InstallerResult {
+        if (!requestPermissions())
+            throw IllegalStateException("Shizuku is not available!")
+
+        return suspendCancellableCoroutine { continuation ->
+            val packageInstaller = getPackageInstaller()
+
+            // Create and register a result receiver
+            val relayReceiver = PMUtils.registerRelayReceiver(
+                context = context,
+                sessionId = -1,
+                isUninstall = true,
+                onResult = continuation::resume,
+            )
+
+            // Unregister PMResultReceiver when this coroutine finishes or errors
+            continuation.invokeOnCancellation {
+                context.unregisterReceiver(relayReceiver)
+            }
+
+            packageInstaller.uninstall(
+                /* packageName = */ packageName,
+                /* statusReceiver = */ PMUtils.createUninstallRelayingIntent(context).intentSender,
+            )
+        }
+    }
+
+    private companion object {
+        // We spoof Google Play Store to prevent unnecessary checks
+        const val PLAY_PACKAGE_NAME = "com.android.vending"
+
+        /**
+         * Whether the hidden API exemptions have already been added for
+         * use in modifying hidden install session flags.
+         */
+        var hiddenApiDisabled = AtomicBoolean(false)
+    }
+}

app/src/main/kotlin/com/aliucord/manager/installers/shizuku/ShizukuInstallerError.kt

@@ -0,0 +1,14 @@
+package com.aliucord.manager.installers.shizuku
+
+import android.content.Context
+import android.os.Parcelable
+import com.aliucord.manager.installers.InstallerResult
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class ShizukuInstallerError(
+    private val reason: String
+) : InstallerResult.Error(), Parcelable {
+    override fun getDebugReason(): String = reason
+    override fun getLocalizedReason(context: Context): String? = null
+}

app/src/main/kotlin/com/aliucord/manager/installers/shizuku/ShizukuIntentReceiver.kt

@@ -0,0 +1,50 @@
+package com.aliucord.manager.installers.shizuku
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageInstaller
+import android.os.Bundle
+import android.util.Log
+import com.aliucord.manager.installers.shizuku.ShizukuInstallerError
+import com.aliucord.manager.installers.InstallerResult
+import dev.shiggy.manager.BuildConfig
+
+class ShizukuIntentReceiver : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        val extras = intent.extras ?: return
+        val status = extras.getInt(PackageInstaller.EXTRA_STATUS)
+        val message = extras.getString(PackageInstaller.EXTRA_STATUS_MESSAGE) ?: "Unknown"
+        val sessionId = extras.getInt(EXTRA_SESSION_ID)
+
+        if (BuildConfig.DEBUG) {
+            Log.d(
+                BuildConfig.TAG,
+                "Received install result for session $sessionId: " +
+                        "status=$status, message=$message"
+            )
+        }
+
+        val result = when (status) {
+            PackageInstaller.STATUS_SUCCESS -> InstallerResult.Success
+            else -> ShizukuInstallerError("status=$status, message=$message")
+        }
+
+        if (extras.getBoolean(EXTRA_RELAY_ENABLED)) {
+            val resultIntent = Intent(context, ShizukuResultReceiver::class.java).apply {
+                putExtras(Bundle().apply {
+                    putInt(EXTRA_SESSION_ID, sessionId)
+                    putParcelable(EXTRA_RESULT, result)
+                })
+            }
+
+            context.sendBroadcast(resultIntent)
+        }
+    }
+
+    companion object {
+        const val EXTRA_SESSION_ID = "com.aliucord.manager.intent.extra.SESSION_ID"
+        const val EXTRA_RELAY_ENABLED = "com.aliucord.manager.intent.extra.RELAY_ENABLED"
+        const val EXTRA_RESULT = "com.aliucord.manager.intent.extra.RESULT"
+    }
+}

app/src/main/kotlin/com/aliucord/manager/installers/shizuku/ShizukuResultReceiver.kt

@@ -0,0 +1,29 @@
+package com.aliucord.manager.installers.shizuku
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import android.content.IntentFilter
+import com.aliucord.manager.installers.InstallerResult
+
+class ShizukuResultReceiver(
+    private val sessionId: Int,
+    private val isUninstall: Boolean,
+    private val onResult: (InstallerResult) -> Unit
+) : BroadcastReceiver() {
+    override fun onReceive(context: Context, intent: Intent) {
+        val extras = intent.extras ?: return
+        val receivedSessionId = extras.getInt(ShizukuIntentReceiver.EXTRA_SESSION_ID)
+
+        if (receivedSessionId == sessionId) {
+            val result = extras.getParcelable<InstallerResult>(ShizukuIntentReceiver.EXTRA_RESULT)
+            if (result != null) {
+                onResult(result)
+            }
+        }
+    }
+
+    companion object {
+        val intentFilter = IntentFilter("com.aliucord.manager.INSTALL_RESULT")
+    }
+}

app/src/main/kotlin/com/aliucord/manager/manager/InstallerManager.kt

@@ -2,8 +2,11 @@ package com.aliucord.manager.manager
 
 import com.aliucord.manager.installers.Installer
 import com.aliucord.manager.installers.pm.PMInstaller
-import org.koin.core.annotation.KoinInternalApi
+import com.aliucord.manager.installers.root.RootInstaller
+import com.aliucord.manager.installers.shizuku.ShizukuInstaller
 import org.koin.core.component.KoinComponent
+import org.koin.core.component.get
+import rikka.shizuku.Shizuku
 import kotlin.reflect.KClass
 
 /**
@@ -15,15 +18,44 @@ class InstallerManager(
     fun getActiveInstaller(): Installer =
         getInstaller(prefs.installer)
 
-    @OptIn(KoinInternalApi::class)
+    fun getInstaller(type: InstallerSetting): Installer = when (type) {
-    fun getInstaller(type: InstallerSetting): Installer =
+        InstallerSetting.PM -> get<PMInstaller>()
-        getKoin().scopeRegistry.rootScope.get(clazz = type.installerClass)
+        InstallerSetting.ROOT -> get<RootInstaller>()
+        InstallerSetting.Shizuku -> get<ShizukuInstaller>()
+    }
+
+    fun getAvailableInstallers(): List<InstallerSetting> {
+        val installers = mutableListOf(InstallerSetting.PM)
+        try {
+            if (Shizuku.pingBinder()) {
+                installers.add(InstallerSetting.Shizuku)
+            }
+        } catch (e: Exception) {
+            // Shizuku not available
+        }
+        try {
+            val process = ProcessBuilder("su", "-c", "echo").start()
+            process.waitFor()
+            if (process.exitValue() == 0) {
+                installers.add(InstallerSetting.ROOT)
+            }
+        } catch (e: Exception) {
+            // Root not available
+        }
+        return installers
+    }
 }
 
 enum class InstallerSetting(
-    // @StringRes
-    // private val localizedName: Int,
     val installerClass: KClass<out Installer>,
 ) {
     PM(PMInstaller::class),
+    ROOT(RootInstaller::class),
+    Shizuku(ShizukuInstaller::class),
+}
+
+fun InstallerSetting.toDisplayName(): String = when (this) {
+    InstallerSetting.PM -> "Package Manager"
+    InstallerSetting.ROOT -> "Root"
+    InstallerSetting.Shizuku -> "Shizuku"
 }

app/src/main/kotlin/com/aliucord/manager/manager/PreferencesManager.kt

@@ -14,4 +14,5 @@ class PreferencesManager(preferences: SharedPreferences) : BasePreferenceManager
     var keepPatchedApks by booleanPreference("keep_patched_apks", false)
     var showNetworkWarning by booleanPreference("show_network_warning", true)
     var showPlayProtectWarning by booleanPreference("show_play_protect_warning", true)
+    var rootPopupShown by booleanPreference("root_popup_shown", false)
 }

app/src/main/kotlin/com/aliucord/manager/patcher/steps/install/InstallStep.kt

@@ -53,6 +53,10 @@ open class InstallStep(private val options: PatchOptions) : Step(), KoinComponen
         // Wait until app resumed
         ProcessLifecycleOwner.get().lifecycle.withResumed {}
 
+        // Retrieve configured installer
+        container.log("Retrieving configured installer ${prefs.installer}")
+        val installer = installers.getActiveInstaller()
+
         // Show [PlayProtectDialog] and wait until it gets dismissed
         if (prefs.showPlayProtectWarning
             && !prefs.devMode
@@ -67,7 +71,7 @@ open class InstallStep(private val options: PatchOptions) : Step(), KoinComponen
         }
 
         container.log("Installing ${apks.joinToString(", ") { it.name }}, silent: ${!prefs.devMode}")
-        val result = installers.getActiveInstaller().waitInstall(
+        val result = installer.waitInstall(
             apks = apks,
             silent = !prefs.devMode,
         )

app/src/main/kotlin/com/aliucord/manager/ui/previews/screens/home/HomeScreenLoadedPreview.kt

@@ -35,6 +35,7 @@ private fun HomeScreenLoadedPreview(
                 onOpenApp = {},
                 onOpenAppInfo = {},
                 onOpenPlugins = {},
+                onUninstall = {},
             )
         }
     }

app/src/main/kotlin/com/aliucord/manager/ui/screens/home/HomeModel.kt

@@ -39,11 +39,15 @@ class HomeModel(
     private val maven: AliucordMavenService,
     private val wtGithub: ShiggyGithubService,
     private val rnaTracker: RNATrackerService,
-    private val json: Json,
+    private val json: kotlinx.serialization.json.Json,
+    private val preferences: com.aliucord.manager.manager.PreferencesManager,
 ) : ScreenModel {
     var installsState by mutableStateOf<InstallsState>(InstallsState.Fetching)
         private set
 
+    var showRootDetectedDialog by mutableStateOf(false)
+    var rootDetected by mutableStateOf(false)
+
     private val refreshingLock = Mutex()
     private var remoteDataJson: BuildInfo? = null
     private var trackerIndexJson: RNATrackerIndex? = null
@@ -52,6 +56,7 @@ class HomeModel(
 
     init {
         refresh()
+        checkAndSetRootInstaller()
     }
 
     fun refresh(delay: Boolean = false) = screenModelScope.launchIO {
@@ -82,6 +87,14 @@ class HomeModel(
         }
     }
 
+    fun uninstallApp(packageName: String) {
+        val uninstallIntent = Intent(Intent.ACTION_DELETE).apply {
+            data = "package:$packageName".toUri()
+            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+        }
+        application.startActivity(uninstallIntent)
+    }
+
     fun openApp(packageName: String) {
         val launchIntent = application.packageManager
             .getLaunchIntentForPackage(packageName)
@@ -223,6 +236,33 @@ class HomeModel(
         }
     }
 
+    private fun isRootAvailable(): Boolean {
+        return try {
+            val process = ProcessBuilder("su", "-c", "echo rooted").start()
+            val output = process.inputStream.bufferedReader().readText().trim()
+            process.waitFor()
+            output == "rooted"
+        } catch (e: Exception) {
+            false
+        }
+    }
+
+    private fun checkAndSetRootInstaller() {
+        if (isRootAvailable() && !rootDetected) {
+            rootDetected = true
+            // Only show dialog and auto-switch if the popup hasn't been shown before
+            if (!preferences.rootPopupShown) {
+                showRootDetectedDialog = true
+                preferences.rootPopupShown = true
+                // Switch installer to ROOT only the first time
+                if (preferences.installer != com.aliucord.manager.manager.InstallerSetting.ROOT) {
+                    preferences.installer = com.aliucord.manager.manager.InstallerSetting.ROOT
+                }
+            }
+
+        }
+    }
+
     /**
      * Obtains all installed packages on the device that are an Aliucord installation.
      */

app/src/main/kotlin/com/aliucord/manager/ui/screens/home/HomeScreen.kt

@@ -49,6 +49,12 @@ class HomeScreen : Screen, Parcelable {
         val scope = rememberCoroutineScope()
         val model = koinScreenModel<HomeModel>()
 
+        if (model.showRootDetectedDialog) {
+            com.aliucord.manager.ui.screens.settings.components.RootDetectedDialog(
+                onDismissRequest = { model.showRootDetectedDialog = false }
+            )
+        }
+
         // Refresh installations list when the screen changes or activity resumes
         LifecycleResumeEffect(Unit) {
             model.refresh(delay = true)
@@ -73,6 +79,7 @@ class HomeScreen : Screen, Parcelable {
                     onOpenApp = model::openApp,
                     onOpenAppInfo = model::openAppInfo,
                     onOpenPlugins = { navigator.push(PluginsScreen()) }, // TODO: install-specific plugins
+                    onUninstall = model::uninstallApp,
                 )
 
                 InstallsState.Fetching -> HomeScreenLoadingContent(padding = padding)
@@ -123,6 +130,7 @@ fun HomeScreenLoadedContent(
     onOpenApp: (packageName: String) -> Unit,
     onOpenAppInfo: (packageName: String) -> Unit,
     onOpenPlugins: (packageName: String) -> Unit,
+    onUninstall: (packageName: String) -> Unit,
 ) {
     LazyColumn(
         verticalArrangement = Arrangement.spacedBy(10.dp),
@@ -156,6 +164,7 @@ fun HomeScreenLoadedContent(
                 onOpenApp = { onOpenApp(item.packageName) },
                 onOpenInfo = { onOpenAppInfo(item.packageName) },
                 onOpenPlugins = { onOpenPlugins(item.packageName) },
+                onUninstall = { onUninstall(item.packageName) },
                 modifier = Modifier.fillMaxWidth()
             )
         }

app/src/main/kotlin/com/aliucord/manager/ui/screens/home/components/InstalledItemCard.kt

@@ -27,6 +27,7 @@ fun InstalledItemCard(
     onOpenApp: () -> Unit,
     onOpenInfo: () -> Unit,
     onOpenPlugins: () -> Unit,
+    onUninstall: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
     ElevatedCard(
@@ -123,6 +124,13 @@ fun InstalledItemCard(
                     text = stringResource(R.string.action_launch),
                     onClick = onOpenApp,
                 )
+                SegmentedButton(
+                    icon = painterResource(R.drawable.ic_delete_forever),
+                    text = stringResource(R.string.action_uninstall), // Assuming R.string.action_uninstall exists or will be added
+                    iconColor = MaterialTheme.colorScheme.error,
+                    textColor = MaterialTheme.colorScheme.error,
+                    onClick = onUninstall,
+                )
             }
         }
     }

app/src/main/kotlin/com/aliucord/manager/ui/screens/settings/SettingsModel.kt

@@ -1,11 +1,13 @@
 package com.aliucord.manager.ui.screens.settings
 
 import android.app.Application
+import android.net.Uri
 import androidx.compose.runtime.*
 import cafe.adriel.voyager.core.model.ScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
 import com.aliucord.manager.manager.PathManager
 import com.aliucord.manager.manager.PreferencesManager
+import com.aliucord.manager.manager.InstallerManager
 import com.aliucord.manager.ui.theme.Theme
 import com.aliucord.manager.util.*
 import dev.shiggy.manager.BuildConfig
@@ -15,15 +17,19 @@ class SettingsModel(
     private val application: Application,
     private val paths: PathManager,
     val preferences: PreferencesManager,
+    private val installerManager: InstallerManager,
 ) : ScreenModel {
     val installInfo = InstallInfo
 
+
     var patchedApkExists by mutableStateOf(paths.patchedApk().exists())
         private set
 
     var showThemeDialog by mutableStateOf(false)
         private set
 
+    val availableInstallers = installerManager.getAvailableInstallers()
+
     fun showThemeDialog() {
         showThemeDialog = true
     }
@@ -36,6 +42,10 @@ class SettingsModel(
         preferences.theme = theme
     }
 
+    fun setInstaller(installer: com.aliucord.manager.manager.InstallerSetting) {
+        preferences.installer = installer
+    }
+
     fun setKeepPatchedApks(value: Boolean) {
         preferences.keepPatchedApks = value
     }
@@ -54,35 +64,37 @@ class SettingsModel(
         application.showToast(R.string.action_copied)
     }
 
-    fun shareApk() {
+    fun shareApk(uriToShare: android.net.Uri? = null) {
-        // TODO(Shiggy): Implement this
+        val fileUri = uriToShare ?: run {
+            val file = paths.patchedApk()
+            if (!file.exists()) {
                 application.showToast(R.string.settings_export_apk_not_implemented)
-        // val file = paths.patchingWorkingDir().resolve("patched.apk")
+                return
-        // val fileUri = FileProvider.getUriForFile(
+            }
-        //     /* context = */ application,
+            try {
-        //     /* authority = */ "${BuildConfig.APPLICATION_ID}.provider",
+                androidx.core.content.FileProvider.getUriForFile(
-        //     /* file = */ file,
+                    application,
-        //     /* displayName = */ "Aliucord.apk",
+                    "${BuildConfig.APPLICATION_ID}.provider",
-        // )
+                    file
-        //
+                )
-        // val intent = Intent(Intent.ACTION_SEND)
+            } catch (t: Throwable) {
-        //     .setType("application/vnd.android.package-archive")
+                application.showToast(R.string.status_failed)
-        //     .putExtra(Intent.EXTRA_STREAM, fileUri)
+                return
-        //     .addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+            }
-        //     .let {
+        }
-        //         Intent.createChooser(
+
-        //             /* target = */ it,
+        val intent = android.content.Intent(android.content.Intent.ACTION_SEND)
-        //             /* title = */ application.getString(R.string.log_action_export_apk),
+            .setType("application/vnd.android.package-archive")
-        //         )
+            .putExtra(android.content.Intent.EXTRA_STREAM, fileUri)
-        //     }
+            .addFlags(android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION)
-        //     .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            .addFlags(android.content.Intent.FLAG_ACTIVITY_NEW_TASK)
-        //
+
-        // try {
+        try {
-        //     application.startActivity(intent)
+            application.startActivity(intent)
-        // } catch (t: Throwable) {
+        } catch (t: Throwable) {
-        //     Log.w(BuildConfig.TAG, "Failed to share APK", t)
+            android.util.Log.w(BuildConfig.TAG, "Failed to share APK", t)
-        //     application.showToast(R.string.status_failed)
+            application.showToast(R.string.status_failed)
-        // }
+        }
     }
 
     companion object {

app/src/main/kotlin/com/aliucord/manager/ui/screens/settings/SettingsScreen.kt

@@ -20,13 +20,22 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import cafe.adriel.voyager.core.screen.Screen
 import cafe.adriel.voyager.koin.koinScreenModel
+import com.aliucord.manager.manager.InstallerManager
 import com.aliucord.manager.ui.components.BackButton
 import com.aliucord.manager.ui.components.MainActionButton
 import com.aliucord.manager.ui.components.settings.*
 import com.aliucord.manager.ui.screens.settings.components.ThemeDialog
+import com.aliucord.manager.ui.screens.settings.components.InstallerDialog
+import com.aliucord.manager.ui.screens.settings.components.ShizukuInfoDialog
+import com.aliucord.manager.manager.InstallerSetting
+import com.aliucord.manager.manager.toDisplayName
 import dev.shiggy.manager.R
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
+import android.content.pm.PackageManager
+import rikka.shizuku.Shizuku
+import androidx.compose.ui.platform.LocalContext
+
 
 @Parcelize
 class SettingsScreen : Screen, Parcelable {
@@ -38,6 +47,7 @@ class SettingsScreen : Screen, Parcelable {
         val model = koinScreenModel<SettingsModel>()
         var clearedCache by rememberSaveable { mutableStateOf(false) }
 
+
         Scaffold(
             topBar = {
                 TopAppBar(
@@ -70,10 +80,24 @@ class SettingsScreen : Screen, Parcelable {
                     secondaryText = { Text(stringResource(R.string.setting_theme_desc)) }
                 ) {
                     FilledTonalButton(onClick = model::showThemeDialog) {
+                        Icon(
+                            painter = painterResource(
+                                when (preferences.theme) {
+                                    com.aliucord.manager.ui.theme.Theme.Dark -> R.drawable.ic_night
+                                    com.aliucord.manager.ui.theme.Theme.Light -> R.drawable.ic_light
+                                    com.aliucord.manager.ui.theme.Theme.System -> R.drawable.ic_sync
+                                }
+                            ),
+                            contentDescription = null,
+                            modifier = Modifier
+                                .padding(end = 4.dp)
+                                .size(18.dp),
+                        )
                         Text(preferences.theme.toDisplayName())
                     }
                 }
 
+
                 // Material You theming on Android 12+
                 if (Build.VERSION.SDK_INT >= 31) {
                     SettingsSwitch(
@@ -87,6 +111,85 @@ class SettingsScreen : Screen, Parcelable {
 
                 SettingsHeader(stringResource(R.string.settings_header_advanced))
 
+                var showInstallerDialog by remember { mutableStateOf(false) }
+                var showShizukuInfoDialog by remember { mutableStateOf(false) }
+                var shouldRequestShizuku by remember { mutableStateOf(false) }
+                val context = LocalContext.current
+
+                if (shouldRequestShizuku) {
+                    LaunchedEffect(shouldRequestShizuku) {
+                        val SHIZUKU_REQUEST_CODE = 1001
+                        try {
+                            rikka.shizuku.Shizuku.requestPermission(SHIZUKU_REQUEST_CODE)
+                            kotlinx.coroutines.delay(800)
+                            if (rikka.shizuku.Shizuku.checkSelfPermission() != 0) {
+                                showShizukuInfoDialog = true
+                            }
+                        } catch (_: Exception) {
+                            showShizukuInfoDialog = true
+                        }
+                        shouldRequestShizuku = false
+                    }
+                }
+
+                if (showInstallerDialog) {
+                    InstallerDialog(
+                        currentInstaller = preferences.installer,
+                        onDismissRequest = { showInstallerDialog = false },
+                        onConfirm = { installer ->
+                            model.setInstaller(installer)
+                            if (installer == InstallerSetting.Shizuku) {
+                                shouldRequestShizuku = true
+                            }
+                        }
+                    )
+                }
+                if (showShizukuInfoDialog) {
+                    ShizukuInfoDialog(onDismissRequest = { showShizukuInfoDialog = false })
+                }
+
+                SettingsItem(
+                    modifier = Modifier.clickable { showInstallerDialog = true },
+                    icon = { Icon(painterResource(R.drawable.ic_tools), null) },
+                    text = { Text(stringResource(R.string.setting_installer)) },
+                    secondaryText = { Text(stringResource(R.string.setting_installer_desc)) }
+                ) {
+                    FilledTonalButton(onClick = { showInstallerDialog = true }) {
+                        Icon(
+                            painter = painterResource(
+                                when (preferences.installer) {
+                                    InstallerSetting.PM -> R.drawable.ic_app_shortcut
+                                    InstallerSetting.ROOT -> R.drawable.ic_code
+                                    InstallerSetting.Shizuku -> R.drawable.ic_tools
+                                }
+                            ),
+                            contentDescription = null,
+                            modifier = Modifier
+                                .padding(end = 4.dp)
+                                .size(18.dp),
+                        )
+                        Text(preferences.installer.toDisplayName())
+                    }
+                }
+
+                MainActionButton(
+                    text = stringResource(R.string.settings_clear_cache),
+                    icon = painterResource(R.drawable.ic_delete_forever),
+                    enabled = !clearedCache,
+                    colors = IconButtonDefaults.filledTonalIconButtonColors(
+                        containerColor = MaterialTheme.colorScheme.error,
+                    ),
+                    onClick = {
+                        clearedCache = true
+                        model.clearCache()
+                    },
+                    modifier = Modifier
+                        .padding(horizontal = 18.dp, vertical = 10.dp)
+                        .fillMaxWidth()
+                )
+
+                SettingsHeader("Development")
+
                 SettingsSwitch(
                     label = stringResource(R.string.setting_developer_options),
                     secondaryLabel = stringResource(R.string.setting_developer_options_desc),
@@ -116,22 +219,6 @@ class SettingsScreen : Screen, Parcelable {
                     )
                 }
 
-                MainActionButton(
-                    text = stringResource(R.string.settings_clear_cache),
-                    icon = painterResource(R.drawable.ic_delete_forever),
-                    enabled = !clearedCache,
-                    colors = IconButtonDefaults.filledTonalIconButtonColors(
-                        containerColor = MaterialTheme.colorScheme.error,
-                    ),
-                    onClick = {
-                        clearedCache = true
-                        model.clearCache()
-                    },
-                    modifier = Modifier
-                        .padding(horizontal = 18.dp, vertical = 10.dp)
-                        .fillMaxWidth()
-                )
-
                 SettingsHeader(stringResource(R.string.settings_header_info))
 
                 Row(

app/src/main/kotlin/com/aliucord/manager/ui/screens/settings/components/InstallerDialog.kt

@@ -0,0 +1,97 @@
+package com.aliucord.manager.ui.screens.settings.components
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.aliucord.manager.manager.InstallerSetting
+import com.aliucord.manager.manager.toDisplayName
+import dev.shiggy.manager.R
+
+@Composable
+fun InstallerDialog(
+    currentInstaller: InstallerSetting,
+    onDismissRequest: () -> Unit,
+    onConfirm: (InstallerSetting) -> Unit,
+) {
+    var selectedInstaller by rememberSaveable { mutableStateOf(currentInstaller) }
+
+    AlertDialog(
+        onDismissRequest = onDismissRequest,
+        icon = {
+            Icon(
+                painter = painterResource(R.drawable.ic_tools),
+                contentDescription = stringResource(R.string.setting_installer),
+                modifier = Modifier.size(32.dp),
+            )
+        },
+        title = { Text(stringResource(R.string.setting_installer)) },
+        text = {
+            Column {
+                for (installer in InstallerSetting.values()) key(installer) {
+                    val interactionSource = remember(::MutableInteractionSource)
+
+                    Row(
+                        verticalAlignment = Alignment.CenterVertically,
+                        modifier = Modifier
+                            .clickable(
+                                indication = null,
+                                interactionSource = interactionSource,
+                                onClick = { selectedInstaller = installer },
+                            )
+                            .clip(MaterialTheme.shapes.medium)
+                            .padding(horizontal = 6.dp, vertical = 8.dp),
+                    ) {
+                        // Optionally, you can add a unique icon for each installer type
+                        Icon(
+                            painter = painterResource(
+                                when (installer) {
+                                    InstallerSetting.PM -> R.drawable.ic_android
+                                    InstallerSetting.ROOT -> R.drawable.ic_code
+                                    InstallerSetting.Shizuku -> R.drawable.ic_tools
+                                }
+                            ),
+                            contentDescription = null,
+                            modifier = Modifier
+                                .padding(end = 14.dp)
+                                .size(26.dp),
+                        )
+
+                        Text(
+                            text = installer.toDisplayName(),
+                            style = MaterialTheme.typography.labelLarge
+                                .copy(fontSize = 14.sp)
+                        )
+
+                        Spacer(Modifier.weight(1f, true))
+
+                        RadioButton(
+                            selected = installer == selectedInstaller,
+                            onClick = { selectedInstaller = installer },
+                            interactionSource = interactionSource,
+                        )
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            Button(
+                onClick = {
+                    onConfirm(selectedInstaller)
+                    onDismissRequest()
+                },
+            ) {
+                Text(stringResource(R.string.action_apply))
+            }
+        },
+    )
+}

app/src/main/kotlin/com/aliucord/manager/ui/screens/settings/components/RootDetectedDialog.kt

@@ -0,0 +1,63 @@
+package com.aliucord.manager.ui.screens.settings.components
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.dp
+import dev.shiggy.manager.R
+
+@Composable
+fun RootDetectedDialog(
+    onDismissRequest: () -> Unit
+) {
+    AlertDialog(
+        onDismissRequest = onDismissRequest,
+        icon = {
+            Icon(
+                painter = painterResource(R.drawable.ic_code),
+                contentDescription = "Root",
+                modifier = Modifier
+                    .size(48.dp)
+                    .padding(bottom = 8.dp),
+                tint = MaterialTheme.colorScheme.primary
+            )
+        },
+        title = {
+            Text(
+                "Root Access Detected",
+                style = MaterialTheme.typography.titleLarge,
+                modifier = Modifier.padding(bottom = 4.dp)
+            )
+        },
+        text = {
+            Column(
+                modifier = Modifier.padding(top = 4.dp, bottom = 4.dp)
+            ) {
+                Text(
+                    "Root permissions were found on your device.",
+                    style = MaterialTheme.typography.bodyMedium,
+                    modifier = Modifier.padding(bottom = 12.dp)
+                )
+                Text(
+                    "The installer has been automatically switched to Root for the best compatibility and performance.",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.8f)
+                )
+            }
+        },
+        confirmButton = {
+            Button(
+                onClick = onDismissRequest,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(48.dp)
+            ) {
+                Text("Okay", style = MaterialTheme.typography.titleMedium)
+            }
+        },
+        dismissButton = {}
+    )
+}

app/src/main/kotlin/com/aliucord/manager/ui/screens/settings/components/ShizukuInfoDialog.kt

@@ -0,0 +1,95 @@
+package com.aliucord.manager.ui.screens.settings.components
+
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.dp
+import dev.shiggy.manager.R
+
+@Composable
+fun ShizukuInfoDialog(
+    onDismissRequest: () -> Unit
+) {
+    val context = androidx.compose.ui.platform.LocalContext.current
+    AlertDialog(
+        onDismissRequest = onDismissRequest,
+        icon = {
+            Icon(
+                painter = painterResource(R.drawable.ic_tools),
+                contentDescription = "Shizuku",
+                modifier = Modifier
+                    .size(48.dp)
+                    .padding(bottom = 8.dp),
+                tint = MaterialTheme.colorScheme.primary
+            )
+        },
+        title = {
+            Text(
+                "Shizuku Permission Required",
+                style = MaterialTheme.typography.titleLarge,
+                modifier = Modifier.padding(bottom = 4.dp)
+            )
+        },
+        text = {
+            Column(
+                modifier = Modifier.padding(top = 4.dp, bottom = 4.dp)
+            ) {
+                Text(
+                    "To use Shizuku, you must manually grant permission:",
+                    style = MaterialTheme.typography.bodyMedium,
+                    modifier = Modifier.padding(bottom = 12.dp)
+                )
+                Text(
+                    "1. Open the Shizuku app\n" +
+                    "2. Grant permissions in the Shizuku app\n" +
+                    "3. Relaunch Shiggy Manager to apply changes\n\n",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.8f)
+                )
+            }
+        },
+        confirmButton = {
+            Column {
+                Button(
+                    onClick = {
+                        val intent = android.content.Intent().apply {
+                            setClassName(
+                                "moe.shizuku.manager.authorization.RequestPermissionActivity",
+                                "moe.shizuku.privileged.api"
+                            )
+                            addFlags(android.content.Intent.FLAG_ACTIVITY_NEW_TASK)
+                        }
+                        try {
+                            context.startActivity(intent)
+                        } catch (_: Exception) {
+                            val fallback = context.packageManager.getLaunchIntentForPackage("moe.shizuku.privileged.api")
+                            if (fallback != null) {
+                                context.startActivity(fallback)
+                            }
+                        }
+                        onDismissRequest()
+                    },
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .height(48.dp)
+                ) {
+                    Text("Open Shizuku App")
+                }
+                Spacer(modifier = Modifier.height(8.dp))
+                Button(
+                    onClick = onDismissRequest,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .height(48.dp)
+                ) {
+                    Text("Okay")
+                }
+            }
+        },
+        dismissButton = {}
+    )
+}

app/src/main/kotlin/com/aliucord/manager/ui/widgets/updater/UpdaterViewModel.kt

@@ -9,7 +9,6 @@ import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import com.aliucord.manager.installers.InstallerResult
 import com.aliucord.manager.manager.InstallerManager
-import com.aliucord.manager.manager.InstallerSetting
 import com.aliucord.manager.manager.download.IDownloadManager
 import com.aliucord.manager.manager.download.KtorDownloadManager
 import com.aliucord.manager.network.services.AliucordGithubService
@@ -91,7 +90,7 @@ class UpdaterViewModel(
 
             downloadProgress.value = null
 
-            val installer = installers.getInstaller(InstallerSetting.PM)
+            val installer = installers.getActiveInstaller()
             val installResult = installer.waitInstall(
                 apks = listOf(apkFile),
                 silent = true,

app/src/main/res/drawable/ic_android.xml

@@ -0,0 +1,12 @@
+<vector
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  android:width="24dp"
+  android:height="24dp"
+  android:viewportWidth="960"
+  android:viewportHeight="960"
+>
+  <path
+    android:fillColor="#FF3DDB85"
+    android:pathData="M40,720q9,-107 65.5,-197T256,380l-74,-128q-6,-9 -3,-19t13,-15q8,-5 18,-2t16,12l74,128q86,-36 180,-36t180,36l74,-128q6,-9 16,-12t18,2q10,5 13,15t-3,19l-74,128q94,53 150.5,143T920,720L40,720ZM280,610q21,0 35.5,-14.5T330,560q0,-21 -14.5,-35.5T280,510q-21,0 -35.5,14.5T230,560q0,21 14.5,35.5T280,610ZM680,610q21,0 35.5,-14.5T730,560q0,-21 -14.5,-35.5T680,510q-21,0 -35.5,14.5T630,560q0,21 14.5,35.5T680,610Z"
+  />
+</vector>

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

@@ -2,7 +2,7 @@
   <string name="app_name">Shiggy Manager</string>
   <string name="app_description">A Discord mod built with simplicity and a seamless experience in mind.</string>
 
-  <string name="aliucord" translatable="false">ShiggyCord</string>
+  <string name="aliucord" translatable="false">Aliucord</string>
   <string name="discord" translatable="false">Discord</string>
   <string name="github" translatable="false">GitHub</string>
   <string name="support_server">Support Server</string>
@@ -53,6 +53,8 @@
   <string name="setting_theme_desc">The theme to apply to this app</string>
   <string name="setting_dynamic_color">Dynamic color</string>
   <string name="setting_dynamic_color_desc">Enables Material You theming on Android 12+</string>
+  <string name="setting_installer">Installer</string>
+  <string name="setting_installer_desc">The method to use for installing Shiggy</string>
   <string name="setting_developer_options">Developer options</string>
   <string name="setting_developer_options_desc">Don\'t enable this unless you know what it does! (yes, really)</string>
   <string name="setting_keep_patched_apks">Keep patched APKs</string>
@@ -255,7 +257,8 @@
   <string name="log_section_error">Error Stacktrace</string>
   <string name="log_section_log">Installation Log</string>
   <string name="log_action_export">Export log</string>
-  <string name="log_action_export_apk">Export APK</string>
+  <string name="log_action_export_apk">Export Patched APK</string>
+  <string name="settings_share_custom_apk">Share Custom APK</string>
   <string name="log_action_share">Share log</string>
 
   <string name="logs_title">Logs</string>
@@ -283,6 +286,8 @@
   <string name="custom_component_picker_title">Custom Component</string>
   <string name="custom_component_picker_desc">A custom local version for a patching component (%s) has been found. Would you like to use it?</string>
 
+  <string name="permissions_shizuku_denied">Failed to obtain Shizuku permissions</string>
+
   <string name="fun_fact_prefix">Fun Fact: %s</string>
   <string name="fun_fact_1">ShiggyCord on first release was meant to be custom Kettu build!</string>
   <string name="fun_fact_2">The refreshed UI inside the settings was made from developer boredom</string>

gradle/libs.versions.toml

@@ -1,4 +1,5 @@
 [versions]
+shizuku = "13.1.5"
 accompanist = "0.37.3"
 agp = "8.11.0"
 androidx-activity = "1.10.1"
@@ -15,6 +16,9 @@ compose-material3 = "1.3.2"
 compose-pipette = "1.0.1"
 desugaring = "2.1.5"
 diff = "4.16"
+hiddenApi-bypass = "6.1"
+hiddenApi-refine = "4.4.0"
+hiddenApi-stub = "4.4.0"
 koin = "4.1.0"
 kotlin = "2.2.0"
 kotlinx-immutable = "0.4.0"
@@ -27,6 +31,13 @@ voyager = "1.1.0-beta03"
 zip = "2.3.0"
 
 [libraries]
+# Shizuku + Utils
+shizuku-api = { module = "dev.rikka.shizuku:api", version.ref = "shizuku" }
+shizuku-provider = { module = "dev.rikka.shizuku:provider", version.ref = "shizuku" }
+hiddenApi-bypass = { module = "org.lsposed.hiddenapibypass:hiddenapibypass", version.ref = "hiddenApi-bypass" }
+hiddenApi-refine = { module = "dev.rikka.tools.refine:runtime", version.ref = "hiddenApi-refine" }
+hiddenApi-stub = { module = "dev.rikka.hidden:stub", version.ref = "hiddenApi-stub" }
+
 # Accompanist
 accompanist-permissions = { module = "com.google.accompanist:accompanist-permissions", version.ref = "accompanist" }
 accompanist-systemUiController = { module = "com.google.accompanist:accompanist-systemuicontroller", version = "0.36.0" }
@@ -131,6 +142,10 @@ voyager = [
     "voyager-navigator",
     "voyager-transitions",
 ]
+shizuku = [
+    "shizuku-api",
+    "shizuku-provider",
+]
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
@@ -138,3 +153,4 @@ compose-compiler = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "
 kotlin-android = { id = "org.jetbrains.kotlin.android", version.ref = "kotlin" }
 kotlin-parcelize = { id = "org.jetbrains.kotlin.plugin.parcelize", version.ref = "kotlin" }
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
+hiddenApi-refine = { id = "dev.rikka.tools.refine", version = "4.3.0" }

settings.gradle.kts

@@ -6,6 +6,7 @@ pluginManagement {
     repositories {
         google()
         mavenCentral()
+        maven { url = uri("https://maven.rikka.app/releases") }
     }
 }
 
@@ -17,6 +18,10 @@ dependencyResolutionManagement {
             name = "aliucord"
             url = uri("https://maven.aliucord.com/snapshots")
         }
+        maven {
+            name = "jitpack"
+            url = uri("https://jitpack.io")
+        }
     }
 }