Speed up UI launch time

Author: DRSchlaubi

client/build.gradle.kts

@@ -75,7 +75,6 @@ compose.desktop {
             packageName = "GTA Killer"
 
             windows {
-                console = true
                 menuGroup = "GTA Killer"
                 upgradeUuid = "8193b8f9-1355-4d0f-9c6f-6619d0f18604"
             }

client/src/main/kotlin/Launcher.kt

@@ -1,15 +1,48 @@
 package dev.schlaubi.mastermind
 
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
 import androidx.compose.ui.window.singleWindowApplication
 import dev.schlaubi.mastermind.core.registerKeyBoardListener
+import dev.schlaubi.mastermind.theme.AppTheme
 import dev.schlaubi.mastermind.ui.GTAKiller
 import dev.schlaubi.mastermind.windows_helper.WindowsAPI
 
 fun main() {
-    WindowsAPI.registerKeyboardHook()
-    registerKeyBoardListener()
-
     singleWindowApplication(title = "GTA Killer") {
+        var loading by remember { mutableStateOf(true) }
+        if (loading) {
+            SideEffect {
+                WindowsAPI.registerKeyboardHook()
+                registerKeyBoardListener()
+            }
+
+            AppTheme {
+                Scaffold {
+                    Column(
+                        verticalArrangement = Arrangement.Center,
+                        horizontalAlignment = Alignment.CenterHorizontally,
+                        modifier = Modifier.fillMaxSize()
+                    ) {
+                        CircularProgressIndicator()
+                        Text(
+                            "Launching App ...",
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSurface
+                        )
+                    }
+                }
+            }
+        }
+
         GTAKiller()
     }
 }