Cambiar la pantalla de login de despues de iniciar sesion

app/src/main/java/com/example/saludapp/ui/LoginScreen.kt

@@ -11,7 +11,7 @@ import com.example.saludapp.data.DatabaseHelper
 import kotlinx.coroutines.launch
 
 @Composable
-fun LoginScreen(onLoginSuccess: () -> Unit, onNavigateToRegister: () -> Unit) {
+fun LoginScreen(onLoginSuccess: (String) -> Unit, onNavigateToRegister: () -> Unit) {
     var email by remember { mutableStateOf("") }
     var password by remember { mutableStateOf("") }
     var isLoading by remember { mutableStateOf(false) }
@@ -73,10 +73,10 @@ fun LoginScreen(onLoginSuccess: () -> Unit, onNavigateToRegister: () -> Unit) {
                     scope.launch {
                         isLoading = true
                         errorMessage = null
-                        val success = DatabaseHelper.validateLogin(email, password)
+                        val userName = DatabaseHelper.validateLogin(email, password)
                         isLoading = false
-                        if (success) {
-                            onLoginSuccess()
+                        if (userName != null) {
+                            onLoginSuccess(userName)
                         } else {
                             errorMessage = "Usuario o contraseña incorrectos"
                         }