您可以将您的流程与生命周期回调绑定。您可以创建可组合的实用程序来处理生命周期事件。

@Composable
fun OnLifecycleEvent(onEvent: (owner: LifecycleOwner, event:Lifecycle.Event) -> Unit) {
    val eventHandler = rememberUpdatedState(onEvent)
    val lifecycleOwner = rememberUpdatedState(LocalLifecycleOwner.current)

    DisposableEffect(lifecycleOwner.value) {
        val lifecycle = lifecycleOwner.value.lifecycle
        val observer = LifecycleEventObserver { owner, event ->
            eventHandler.value(owner, event)
        }

        lifecycle.addObserver(observer)
        onDispose {
            lifecycle.removeObserver(observer)
        }
    }
}

如果您希望在应用进入前台时启动日志流，请按以下方式使用：

@Composable
fun MyApp(viewModel: LoginViewModel) {

...
    OnLifecycleEvent { owner, event ->
        when (event) {
            Lifecycle.Event.ON_RESUME -> { viewModel.performLogin(ctx) }
            else -> { ... }
       }
    }
}

我实际上使用this question and its answer作为源代码

您可以使用的另一种方法如下
让我们一步一步来：）
第一步：ViewModel必须实现DefaultLifecycleObserver接口

@HiltViewModel
class LoginViewModel @Inject constructor(
    private val savedStateHandle: SavedStateHandle
) : ViewModel(), DefaultLifecycleObserver {
}

通过这种方式，您可以访问以下方法：

public interface DefaultLifecycleObserver extends FullLifecycleObserver {

    /**
     * Notifies that {@code ON_CREATE} event occurred.
     * <p>
     * This method will be called after the {@link LifecycleOwner}'s {@code onCreate}
     * method returns.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onCreate(@NonNull LifecycleOwner owner) {
    }

    /**
     * Notifies that {@code ON_START} event occurred.
     * <p>
     * This method will be called after the {@link LifecycleOwner}'s {@code onStart} method returns.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onStart(@NonNull LifecycleOwner owner) {
    }

    /**
     * Notifies that {@code ON_RESUME} event occurred.
     * <p>
     * This method will be called after the {@link LifecycleOwner}'s {@code onResume}
     * method returns.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onResume(@NonNull LifecycleOwner owner) {
    }

    /**
     * Notifies that {@code ON_PAUSE} event occurred.
     * <p>
     * This method will be called before the {@link LifecycleOwner}'s {@code onPause} method
     * is called.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onPause(@NonNull LifecycleOwner owner) {
    }

    /**
     * Notifies that {@code ON_STOP} event occurred.
     * <p>
     * This method will be called before the {@link LifecycleOwner}'s {@code onStop} method
     * is called.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onStop(@NonNull LifecycleOwner owner) {
    }

    /**
     * Notifies that {@code ON_DESTROY} event occurred.
     * <p>
     * This method will be called before the {@link LifecycleOwner}'s {@code onDestroy} method
     * is called.
     *
     * @param owner the component, whose state was changed
     */
    @Override
    default void onDestroy(@NonNull LifecycleOwner owner) {
    }
}

第二步：在您的Composable中，调用我发送给附件的方法，如下所示。
创建如下扩展函数：

@Composable
fun <LO : LifecycleObserver> LO.ObserveLifecycle(lifecycle: Lifecycle) {
  DisposableEffect(lifecycle) {
    lifecycle.addObserver(this@ObserveLifecycle)
    onDispose {
      lifecycle.removeObserver(this@ObserveLifecycle)
    }
  }
}

在可组合函数中调用它，如下所示

@Composable
fun LoginScreen(viewModel: LoginViewModel) {
    viewModel.observeLifecycle(LocalLifecycleOwner.current.lifecycle)
}

口渴步骤：在ViewModel中实现您的逻辑，如果您要转到另一个页面，请通知Composable by Event

LoginViewModel.kt
 override fun onResume(owner: LifecycleOwner) {
        super.onResume(owner)
 }