android -java.io.IOException:销毁时取消

public class MyActivity extends AppCompatActivity {
    private MyAsyncTask asyncTask;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        asyncTask = new MyAsyncTask();
        asyncTask.execute();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (asyncTask != null && asyncTask.getStatus() == AsyncTask.Status.RUNNING) {
            asyncTask.cancel(true);
        }
    }

    private class MyAsyncTask extends AsyncTask<Void, Void, Void> {
        @Override
        protected Void doInBackground(Void... voids) {
            while (!isCancelled()) {
                try {
                    // 执行I/O操作
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    // 任务被取消
                    return null;
                } catch (Exception e) {
                    // 处理其他异常
                    e.printStackTrace();
                }
            }
            return null;
        }
    }
}

class MyViewModel : ViewModel() {
    private val job = SupervisorJob()
    private val scope = CoroutineScope(Dispatchers.Main + job)

    fun startTask() {
        scope.launch {
            try {
                // 执行I/O操作
                delay(1000)
            } catch (e: CancellationException) {
                // 任务被取消
            }
        }
    }

    override fun onCleared() {
        super.onCleared()
        job.cancel()
    }
}