manager: hide root-related features if kernelsu version null (#71)

Related PR:
tiann#2483

Also attempting to address this:
tiann#2483 (comment)

Co-authored-by: rsuntk <rsuntk@yukiprjkt.my.id>
Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>
Signed-off-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com>

manager/app/src/main/java/zako/zako/zako/Natives.kt

@@ -91,6 +91,14 @@ object Natives {
         return version < MINIMAL_SUPPORTED_KERNEL
     }
     
+    fun isKsuValid(pkgName: String?): Boolean {
+    	if (becomeManager(pkgName)) {
+    		return true
+    	} else {
+    		return false
+    	}
+    }
+
     @Immutable
     @Parcelize
     @Keep

manager/app/src/main/java/zako/zako/zako/ui/screen/Home.kt

@@ -283,14 +283,18 @@ private fun TopBar(
             }
 
             var showDropdown by remember { mutableStateOf(false) }
+            if (Natives.isKsuValid(ksuApp.packageName)) {
                 IconButton(onClick = { showDropdown = true }) {
                     Icon(Icons.Filled.Refresh, stringResource(R.string.reboot))
-                DropdownMenu(expanded = showDropdown, onDismissRequest = { showDropdown = false }
+                    DropdownMenu(
+                        expanded = showDropdown,
+                        onDismissRequest = { showDropdown = false }
                     ) {
 
                         RebootDropdownItem(id = R.string.reboot)
 
-                    val pm = LocalContext.current.getSystemService(Context.POWER_SERVICE) as PowerManager?
+                        val pm =
+                            LocalContext.current.getSystemService(Context.POWER_SERVICE) as PowerManager?
                         @Suppress("DEPRECATION")
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && pm?.isRebootingUserspaceSupported == true) {
                             RebootDropdownItem(id = R.string.reboot_userspace, reason = "userspace")
@@ -301,12 +305,14 @@ private fun TopBar(
                         RebootDropdownItem(id = R.string.reboot_edl, reason = "edl")
                     }
                 }
+            }
         },
         windowInsets = WindowInsets.safeDrawing.only(WindowInsetsSides.Top + WindowInsetsSides.Horizontal),
         scrollBehavior = scrollBehavior
     )
 }
 
+
 @Composable
 private fun StatusCard(
     kernelVersion: KernelVersion,

manager/app/src/main/java/zako/zako/zako/ui/screen/MoreSettings.kt

@@ -40,6 +40,7 @@ import zako.zako.zako.ui.theme.*
 import zako.zako.zako.ui.util.*
 import androidx.core.content.edit
 import zako.zako.zako.R
+import zako.zako.zako.*
 
 
 fun saveCardConfig(context: Context) {
@@ -175,6 +176,7 @@ fun MoreSettingsScreen(navigator: DestinationsNavigator) {
     )
 
     var showThemeColorDialog by remember { mutableStateOf(false) }
+    val ksuIsValid = Natives.isKsuValid(ksuApp.packageName)
 
     // 图片选择器
     val pickImageLauncher = rememberLauncherForActivityResult(
@@ -208,6 +210,7 @@ fun MoreSettingsScreen(navigator: DestinationsNavigator) {
                 .padding(top = 12.dp)
         ) {
             // SELinux 开关
+            if (ksuIsValid) {
                 SwitchItem(
                     icon = Icons.Filled.Security,
                     title = stringResource(R.string.selinux),
@@ -221,6 +224,7 @@ fun MoreSettingsScreen(navigator: DestinationsNavigator) {
                         if (result.isSuccess) selinuxEnabled = enabled
                     }
                 }
+            }
 
             var isExpanded by remember { mutableStateOf(false) }
 

manager/app/src/main/java/zako/zako/zako/ui/screen/Settings.kt

@@ -49,6 +49,7 @@ import kotlinx.coroutines.withContext
 import zako.zako.zako.BuildConfig
 import zako.zako.zako.Natives
 import zako.zako.zako.R
+import zako.zako.zako.*
 import zako.zako.zako.ui.component.*
 import zako.zako.zako.ui.theme.*
 import zako.zako.zako.ui.util.LocalSnackbarHost
@@ -68,6 +69,7 @@ fun SettingScreen(navigator: DestinationsNavigator) {
     // region 界面基础设置
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior(rememberTopAppBarState())
     val snackBarHost = LocalSnackbarHost.current
+    val ksuIsValid = Natives.isKsuValid(ksuApp.packageName)
     // endregion
 
     Scaffold(
@@ -115,6 +117,7 @@ fun SettingScreen(navigator: DestinationsNavigator) {
             // region 配置项列表
             // 配置文件模板入口
             val profileTemplate = stringResource(id = R.string.settings_profile_template)
+            if (ksuIsValid) {
             ListItem(
                 leadingContent = { Icon(Icons.Filled.Fence, profileTemplate) },
                 headlineContent = { Text(profileTemplate) },
@@ -123,10 +126,13 @@ fun SettingScreen(navigator: DestinationsNavigator) {
                     navigator.navigate(AppProfileTemplateScreenDestination)
                 }
             )
+            }
             // 卸载模块开关
             var umountChecked by rememberSaveable {
                 mutableStateOf(Natives.isDefaultUmountModules())
             }
+            
+            if (ksuIsValid) {
 		    SwitchItem(
 		        icon = Icons.Filled.FolderDelete,
 		        title = stringResource(id = R.string.settings_umount_modules_default),
@@ -137,7 +143,9 @@ fun SettingScreen(navigator: DestinationsNavigator) {
 		            umountChecked = it
 		        }
 		    }
+            }
             // SU 禁用开关（仅在兼容版本显示）
+            if (ksuIsValid) {
                 if (Natives.version >= Natives.MINIMAL_SUPPORTED_SU_COMPAT) {
                     var isSuDisabled by rememberSaveable {
                         mutableStateOf(!Natives.isSuEnabled())
@@ -154,6 +162,7 @@ fun SettingScreen(navigator: DestinationsNavigator) {
                         }
                     }
                 }
+            }
 
             val prefs = context.getSharedPreferences("settings", Context.MODE_PRIVATE)
 
@@ -179,6 +188,7 @@ fun SettingScreen(navigator: DestinationsNavigator) {
                     prefs.getBoolean("enable_web_debugging", false)
                 )
             }
+            if (Natives.isKsuValid(ksuApp.packageName)) {
                 SwitchItem(
                     icon = Icons.Filled.DeveloperMode,
                     title = stringResource(id = R.string.enable_web_debugging),
@@ -188,6 +198,7 @@ fun SettingScreen(navigator: DestinationsNavigator) {
                     prefs.edit { putBoolean("enable_web_debugging", it) }
                     enableWebDebugging = it
                 }
+            }
             // 更多设置
             val newButtonTitle = stringResource(id = R.string.more_settings)
             ListItem(