我们是否应该取消Applicationclass中创建的applicationScope？

Question

我在我的 Android 应用程序 class 中创建了一个 applicationScope，用于应该比 viewModelScope 和 lifecycleScope 更有效的操作，如下所示：

class App : Application() {
    val applicationScope = CoroutineScope(...)

我们是否应该自动取消 applicationScope 以避免泄漏或其他原因？我问是因为我见过一些人们会打电话给

的项目

applicationScope.cancel()

当他们的主要 activity 将被销毁或当用户想要关闭应用程序时。这在某些情况下是否有必要？

Answer 1

无需取消应用程序级范围。当进程被杀死时，它将被拆除。 Source

class MyApplication : Application() {
  // No need to cancel this scope as it'll be torn down with the process
  val applicationScope = CoroutineScope(SupervisorJob() + otherConfig)
}

We don’t need to cancel this scope since we want it to remain active as long as the application process is alive, so we don’t hold a reference to the SupervisorJob. We can use this scope to run coroutines that need a longer lifetime than the calling scope might offer in our app.

我们是否应该取消Applicationclass中创建的applicationScope？

Should we cancel the applicationScope created in the Application class?

android

kotlin

kotlin-coroutines