OnActivityResult在xamarin中不起作用

Question

im试图用蓝牙连接编写应用程序，当我收到有关打开蓝牙的请求时，我必须选择是或否，当我这样做时，它应该显示像吐司的小消息，但它不显示，我试图进行功能内部烘烤，如果仍然无法正常工作，请帮助

        BluetoothAdapter bluetoothAdapter = BluetoothAdapter.DefaultAdapter;

        if (bluetoothAdapter == null)
        {
            Toast.MakeText(Application.Context, "xxx ", ToastLength.Short).Show();
        }

        if (!bluetoothAdapter.IsEnabled)
        {
            Intent wlaczbt = new Intent(BluetoothAdapter.ActionRequestEnable);
            StartActivityForResult(wlaczbt, REQUEST_ENABLE_BT);
            //OnActivityResult(REQUEST_ENABLE_BT, Result.Ok, wlaczbt);
        }
        else
        {
            Toast.MakeText(Application.Context, "xxx ", ToastLength.Short).Show();
        }

OnActivity：

public void OnActivityResult(int requestCode,int resultCode,Intent data)
{
    base.OnActivityResult(requestCode, Result.Ok , data);
    Toast.MakeText(Application.Context, "xx ", ToastLength.Short).Show();
    if (requestCode == REQUEST_ENABLE_BT)
    {
        if(resultCode.Equals(Result.Ok))
        {
            Toast.MakeText(Application.Context, "xx ",ToastLength.Short).Show();
        }
        else
        {
            Toast.MakeText(Application.Context, "xx ", ToastLength.Short).Show();
        }
    }
}

Answer 1

我编写了一个有关它正常工作的演示。这是运行GIF。