Shuttle pop-up returns to the upper level

Pop up and return to the upper level ：

1. Navigator.of(context).pop(true); then .then return （future The way to do it .then）
   2.Navigator.of(context).popUntil((route) => route.settings.name == ‘HBAssessmentPage’);
   3. Level two pop Will make mistakes , Because the first one pop after context Vanished , Second not found context, So the reason for the error is that the second one cannot be found context, At this time, it can be transferred to different places context Return to the upper level