Display module status

app/src/main/java/com/topjohnwu/magisk/core/model/module/LocalModule.kt

@@ -138,6 +138,8 @@ data class LocalModule(
 
         private val PERSIST get() = "${Const.MAGISKTMP}/mirror/persist/magisk"
 
+        fun loaded() = RootUtils.fs.getFile(Const.MAGISK_PATH).exists()
+
         suspend fun installed() = withContext(Dispatchers.IO) {
             RootUtils.fs.getFile(Const.MAGISK_PATH)
                 .listFiles()

app/src/main/java/com/topjohnwu/magisk/ui/MainActivity.kt

@@ -20,6 +20,7 @@ import com.topjohnwu.magisk.core.Config
 import com.topjohnwu.magisk.core.Const
 import com.topjohnwu.magisk.core.Info
 import com.topjohnwu.magisk.core.isRunningAsStub
+import com.topjohnwu.magisk.core.model.module.LocalModule
 import com.topjohnwu.magisk.databinding.ActivityMainMd2Binding
 import com.topjohnwu.magisk.ktx.startAnimations
 import com.topjohnwu.magisk.ui.home.HomeFragmentDirections
@@ -84,7 +85,7 @@ class MainActivity : BaseMainActivity<ActivityMainMd2Binding>() {
         }
         binding.mainNavigation.menu.apply {
             findItem(R.id.superuserFragment)?.isEnabled = Utils.showSuperUser()
-            findItem(R.id.modulesFragment)?.isEnabled = Info.env.isActive
+            findItem(R.id.modulesFragment)?.isEnabled = Info.env.isActive && LocalModule.loaded()
         }
 
         val section =

app/src/main/java/com/topjohnwu/magisk/ui/module/ModuleViewModel.kt

@@ -37,7 +37,7 @@ class ModuleViewModel : BaseViewModel() {
     val data get() = uri
 
     init {
-        if (Info.env.isActive) {
+        if (Info.env.isActive && LocalModule.loaded()) {
             items.insertItem(InstallModule)
                 .insertList(itemsInstalled)
         }

app/src/main/res/layout/fragment_module_md2.xml

@@ -33,7 +33,6 @@
             tools:listitem="@layout/item_module_md2" />
 
         <LinearLayout
-            goneUnless="@{viewModel.loading}"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
@@ -41,6 +40,7 @@
             android:orientation="vertical">
 
             <TextView
+                goneUnless="@{viewModel.loading}"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:text="@string/loading"
@@ -49,8 +49,16 @@
 
             <ProgressBar
                 style="@style/WidgetFoundation.ProgressBar.Indeterminate"
+                goneUnless="@{viewModel.loading}"
                 android:layout_marginTop="@dimen/l1" />
 
+            <TextView
+                gone="@{viewModel.loading || viewModel.items.size() != 1 }"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/module_empty"
+                android:textAppearance="@style/AppearanceFoundation.Title"
+                android:textStyle="bold" />
         </LinearLayout>
 
     </FrameLayout>

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

@@ -111,6 +111,7 @@
     <string name="suspend_text_riru">Module suspended because %1$s is enabled</string>
     <string name="suspend_text_zygisk">Module suspended because %1$s is not enabled</string>
     <string name="zygisk_module_unloaded">Zygisk module not loaded due to incompatibility</string>
+    <string name="module_empty">No module installed</string>
 
     <!--Settings-->
     <string name="settings_dark_mode_title">Theme Mode</string>