Android 不能有意地从一个活动的可组合功能转移到另一个活动

我有两个活动，它们有不同的导航功能，但如何导航到不属于该活动的功能.我不能使用意图导航，也不能使用导航导航，因为这些功能是不同活动的一部分.

我想从作为StartActivity一部分的函数移动到MainActivity，但我收到错误: @Composable调用只能从@Composable函数的上下文中进行

以下是我的主要活动:

@AndroidEntryPoint
class MainActivity : ComponentActivity() {
    private val startViewModel: StartViewModel by viewModels()
    private val viewModel: TabBarViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)
        setContent {
            val navController: NavHostController = rememberNavController()
            NavHost(
                navController = navController,
                startDestination = Screen.Introduction.route
            ) {
                composable(Screen.BottomNavigationScreen.route) {
                    BottomNavigationScreen()
                }


            }
        }
    }
}

另一项活动

@AndroidEntryPoint
class StartActivity : ComponentActivity() {
    private val viewModel: StartViewModel by viewModels()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        val startDestination = if (AppPreferences.hasSeenIntro) {
            val intent = Intent(this, MainActivity::class.java)
            startActivity(intent)
            return
        } else if (AppPreferences.hasDownloadedContent) {
            Screen.Introduction.route
        } else {
            Screen.SelectLanguage.route
        }

        setContent {
            val navController: NavHostController = rememberNavController()
            NavHost(
                navController = navController,
                startDestination = startDestination
            ) {
                composable(Screen.Start.route) {
                    Start(navController, viewModel)
                }
                composable(Screen.CheckWhere.route) {
                    CheckWheretoGo(navController)
                }
                composable(Screen.SelectLanguage.route) {
                    SelectLanguage(navController)
                }
                composable(Screen.Introduction.route) {
                    IntroductionScreen(navController)
                }

            }
        }
    }

现在在我的Introduction可组合函数中:

@Composable
Introduction(){
                IconButton(onClick = {
                    if (selectedPosition + 1 == items.size) {
                        val context = LocalContext.current
                        val intent = Intent(context, MainActivity::class.java)
                        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
}