manager: fix webui package manager

manager/app/src/main/java/me/weishu/kernelsu/ui/viewmodel/SuperUserViewModel.kt

@@ -18,6 +18,8 @@ import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
 import com.topjohnwu.superuser.Shell
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.withContext
 import kotlinx.parcelize.Parcelize
 import me.weishu.kernelsu.IKsuInterface
@@ -38,6 +40,9 @@ class SuperUserViewModel : ViewModel() {
         private const val TAG = "SuperUserViewModel"
         private val appsLock = Any()
         var apps by mutableStateOf<List<AppInfo>>(emptyList())
+
+        private val _isAppListLoaded = MutableStateFlow(false)
+        val isAppListLoaded = _isAppListLoaded.asStateFlow()
 
         @JvmStatic
         fun getAppIconDrawable(context: Context, packageName: String): Drawable? {
@@ -185,6 +190,7 @@ class SuperUserViewModel : ViewModel() {
 
             synchronized(appsLock) {
                 apps = newApps
+                _isAppListLoaded.value = true
             }
 
             val comparator = compareBy<AppInfo> {

manager/app/src/main/java/me/weishu/kernelsu/ui/webui/AppIconUtil.kt

@@ -24,7 +24,6 @@ object AppIconUtil {
             val drawable = getAppIconDrawable(context, packageName) ?: return null
             val raw = drawableToBitmap(drawable, sizePx)
             val icon = raw.scale(sizePx, sizePx)
-            if (raw != icon) raw.recycle()
             iconCache.put(packageName, icon)
             return icon
         } catch (_: Exception) {

manager/app/src/main/java/me/weishu/kernelsu/ui/webui/WebUIActivity.kt

@@ -10,25 +10,30 @@ import android.webkit.WebResourceResponse
 import android.webkit.WebView
 import android.webkit.WebViewClient
 import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
-import androidx.activity.viewModels
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.updateLayoutParams
 import androidx.lifecycle.lifecycleScope
 import androidx.webkit.WebViewAssetLoader
-import kotlinx.coroutines.launch
 import com.topjohnwu.superuser.Shell
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
 import me.weishu.kernelsu.ui.util.createRootShell
 import me.weishu.kernelsu.ui.viewmodel.SuperUserViewModel
+import top.yukonga.miuix.kmp.basic.InfiniteProgressIndicator
 import java.io.File
 
 @SuppressLint("SetJavaScriptEnabled")
 class WebUIActivity : ComponentActivity() {
     private lateinit var webviewInterface: WebViewInterface
 
     private var rootShell: Shell? = null
-    private val superUserViewModel: SuperUserViewModel by viewModels()
 
     override fun onCreate(savedInstanceState: Bundle?) {
 
@@ -40,10 +45,22 @@ class WebUIActivity : ComponentActivity() {
 
         super.onCreate(savedInstanceState)
 
+        setContent {
+            Box(
+                modifier = Modifier.fillMaxSize(),
+                contentAlignment = Alignment.Center
+            ) {
+                InfiniteProgressIndicator()
+            }
+        }
+
         lifecycleScope.launch {
-            superUserViewModel.fetchAppList()
+            SuperUserViewModel.isAppListLoaded.first { it }
+            setupWebView()
         }
+    }
 
+    private fun setupWebView() {
         val moduleId = intent.getStringExtra("id")!!
         val name = intent.getStringExtra("name")!!
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU) {