feature: graceful shizuku binder handling

app/build.gradle

@@ -35,6 +35,7 @@ android {
     }
     buildFeatures {
         compose true
+        aidl true
     }
     composeOptions {
         kotlinCompilerExtensionVersion = "1.4.0"

app/src/main/java/dev/bluehouse/enablevolte/HomeActivity.kt

@@ -11,6 +11,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
 import androidx.compose.material.icons.filled.Home
+import androidx.compose.material.icons.filled.Refresh
 import androidx.compose.material.icons.filled.Settings
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
@@ -93,6 +94,14 @@ fun PixelIMSApp() {
         })
     }
 
+    fun generateInitialNavBuilder(): (NavGraphBuilder.() -> Unit) {
+        return {
+            composable("home", "Home") {
+                Home(navController)
+            }
+        }
+    }
+
     fun generateNavBuilder(): (NavGraphBuilder.() -> Unit) {
         return {
             composable("home", "Home") {
@@ -114,14 +123,16 @@ fun PixelIMSApp() {
         }
     }
 
-    OnLifecycleEvent { _, event ->
-        if (event == Lifecycle.Event.ON_CREATE) {
-            try {
-                if (checkShizukuPermission(0)) {
+    fun loadApplication() {
+        val shizukuStatus = checkShizukuPermission(0)
+        try {
+            when (shizukuStatus) {
+                ShizukuStatus.GRANTED -> {
                     Log.d(dev.bluehouse.enablevolte.pages.TAG, "Shizuku granted")
                     subscriptions = carrierModer.subscriptions
                     navBuilder = generateNavBuilder()
-                } else {
+                }
+                ShizukuStatus.NOT_GRANTED -> {
                     Shizuku.addRequestPermissionResultListener { _, grantResult ->
                         if (grantResult == PackageManager.PERMISSION_GRANTED) {
                             Log.d(dev.bluehouse.enablevolte.pages.TAG, "Shizuku granted")
@@ -130,8 +141,18 @@ fun PixelIMSApp() {
                         }
                     }
                 }
-            } catch (_: IllegalStateException) {
+                else -> {
+                    subscriptions = listOf()
+                    navBuilder = generateInitialNavBuilder()
+                }
             }
+        } catch (_: IllegalStateException) {
+        }
+    }
+
+    OnLifecycleEvent { _, event ->
+        if (event == Lifecycle.Event.ON_CREATE) {
+            loadApplication()
         }
     }
     Scaffold(
@@ -145,7 +166,17 @@ fun PixelIMSApp() {
                         IconButton(onClick = { navController.popBackStack() }, colors = IconButtonDefaults.filledIconButtonColors(contentColor = MaterialTheme.colorScheme.onPrimary)) {
                             Icon(
                                 imageVector = Icons.Filled.ArrowBack,
-                                contentDescription = "Localized description",
+                                contentDescription = "Go back",
+                            )
+                        }
+                    }
+                },
+                actions = {
+                    if (currentBackStackEntry?.destination?.route == "home") {
+                        IconButton(onClick = { loadApplication() }, colors = IconButtonDefaults.filledIconButtonColors(contentColor = MaterialTheme.colorScheme.onPrimary)) {
+                            Icon(
+                                imageVector = Icons.Filled.Refresh,
+                                contentDescription = "Refresh contents",
                             )
                         }
                     }

app/src/main/java/dev/bluehouse/enablevolte/Utils.kt

@@ -14,14 +14,21 @@ import com.github.kittinunf.fuel.json.responseJson
 import com.github.kittinunf.result.Result
 import rikka.shizuku.Shizuku
 
-fun checkShizukuPermission(code: Int): Boolean {
-    return if (Shizuku.checkSelfPermission() == PackageManager.PERMISSION_GRANTED) {
-        true
-    } else if (Shizuku.shouldShowRequestPermissionRationale()) {
-        false
+enum class ShizukuStatus {
+    GRANTED, NOT_GRANTED, STOPPED
+}
+fun checkShizukuPermission(code: Int): ShizukuStatus {
+    return if (Shizuku.getBinder() != null) {
+        if (Shizuku.checkSelfPermission() == PackageManager.PERMISSION_GRANTED) {
+            ShizukuStatus.GRANTED
+        } else {
+            if (!Shizuku.shouldShowRequestPermissionRationale()) {
+                Shizuku.requestPermission(0)
+            }
+            ShizukuStatus.NOT_GRANTED
+        }
     } else {
-        Shizuku.requestPermission(code)
-        false
+        ShizukuStatus.STOPPED
     }
 }
 

app/src/main/java/dev/bluehouse/enablevolte/pages/Config.kt

@@ -27,6 +27,7 @@ import dev.bluehouse.enablevolte.HeaderText
 import dev.bluehouse.enablevolte.InfiniteLoadingDialog
 import dev.bluehouse.enablevolte.KeyValueEditView
 import dev.bluehouse.enablevolte.R
+import dev.bluehouse.enablevolte.ShizukuStatus
 import dev.bluehouse.enablevolte.SubscriptionModer
 import dev.bluehouse.enablevolte.UserAgentPropertyView
 import dev.bluehouse.enablevolte.ValueType
@@ -106,7 +107,7 @@ fun Config(navController: NavController, subId: Int) {
     }
 
     LaunchedEffect(true) {
-        if (checkShizukuPermission(0)) {
+        if (checkShizukuPermission(0) == ShizukuStatus.GRANTED) {
             if (carrierModer.deviceSupportsIMS && subId >= 0) {
                 configurable = try {
                     withContext(Dispatchers.Default) {

app/src/main/java/dev/bluehouse/enablevolte/pages/Home.kt

@@ -27,6 +27,7 @@ import dev.bluehouse.enablevolte.CarrierModer
 import dev.bluehouse.enablevolte.ClickablePropertyView
 import dev.bluehouse.enablevolte.HeaderText
 import dev.bluehouse.enablevolte.R
+import dev.bluehouse.enablevolte.ShizukuStatus
 import dev.bluehouse.enablevolte.StringPropertyView
 import dev.bluehouse.enablevolte.SubscriptionModer
 import dev.bluehouse.enablevolte.checkShizukuPermission
@@ -62,19 +63,26 @@ fun Home(navController: NavController) {
     }
 
     LaunchedEffect(Unit) {
-        shizukuEnabled = try {
-            if (checkShizukuPermission(0)) {
-                loadFlags()
-            } else {
-                Shizuku.addRequestPermissionResultListener { _, grantResult ->
-                    if (grantResult == PackageManager.PERMISSION_GRANTED) {
-                        loadFlags()
+        try {
+            when (checkShizukuPermission(0)) {
+                ShizukuStatus.GRANTED -> {
+                    shizukuEnabled = true
+                    loadFlags()
+                }
+                ShizukuStatus.NOT_GRANTED -> {
+                    shizukuEnabled = true
+                    Shizuku.addRequestPermissionResultListener { _, grantResult ->
+                        if (grantResult == PackageManager.PERMISSION_GRANTED) {
+                            loadFlags()
+                        }
                     }
                 }
+                else -> {
+                    shizukuEnabled = false
+                }
             }
-            true
         } catch (e: IllegalStateException) {
-            false
+            shizukuEnabled = false
         }
         getLatestAppVersion {
             Log.d(TAG, "Fetched version $it")

build.gradle

@@ -4,7 +4,7 @@ buildscript {
     }
 }// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    id 'com.android.application' version '7.4.1' apply false
-    id 'com.android.library' version '7.4.1' apply false
+    id 'com.android.application' version '8.2.2' apply false
+    id 'com.android.library' version '8.2.2' apply false
     id 'org.jetbrains.kotlin.android' version '1.8.0' apply false
 }

gradle.properties

@@ -20,4 +20,6 @@ kotlin.code.style=official
 # Enables namespacing of each library's R class so that its R class includes only the
 # resources declared in the library itself and none from the library's dependencies,
 # thereby reducing the size of the R class for that library
-android.nonTransitiveRClass=true
+android.nonTransitiveRClass=true
+android.defaults.buildfeatures.buildconfig=true
+android.nonFinalResIds=false

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Mon Feb 06 01:14:51 KST 2023
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME