Question

出现了需要等待运算符的方法的错误，但我在哪里放置它们以及什么是await运算符和async和Task？：）

 public async void OnLocationChanged(Location location)
    {

        _currentLocation = location;
        if (_currentLocation == null)
        {
            _locationText.Text = "Unable to determine your location. Try again in a short while.";
        }
        else
        {
            _locationText.Text =  string.Format("{0:f6},{1:f6}", _currentLocation.Latitude, _currentLocation.Longitude);
            as

        }
    }

我想在上面的示例中获得特定帮助：）

Answer 1

从方法的签名中删除asycn关键字！

public void OnLocationChanged(Location location)

缺乏等待运营商？

1 个答案: