Xamarin Forms Prism Navigation from TabbedPage behaves as PushModelAsync or the navigation bar disappears

FIX:

The reason for this is that ViewA’s parent is not a NavigationPage, the result is that the Navigation Service assumes you want modal Navigation. You simply need to add useModalNavigation: false, this will make the Navigation Service push ViewD correctly inside the Navigation Page.

原文地址:https://www.cnblogs.com/mschen/p/12146048.html