region-management | 易学教程

Prism 7 throws and exception when working with nested views

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问题 I posted similar question few months ago Working with nested views using Prism with IsNavigationTarget which can return false, I'm still not sure what is the proper way to do it. Imagine you have a view A, in this view A you have declared a region A, then you injected a view B into this region A. Similarly, in View B you have registered region B, and then you injected a view C into this region B. As it shown on the following picture: In the ViewModelA for ViewA, I have a method SetUpSubViews(

Working with nested views using Prism with IsNavigationTarget which can return false

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来源： https://stackoverflow.com/questions/62164991/working-with-nested-views-using-prism-with-isnavigationtarget-which-can-return-f

Working with nested views using Prism with IsNavigationTarget which can return false

阅读更多关于 Working with nested views using Prism with IsNavigationTarget which can return false

来源： https://stackoverflow.com/questions/62164991/working-with-nested-views-using-prism-with-isnavigationtarget-which-can-return-f

didEnterRegion works in foreground but not background or other VCs

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If the app is running and the CLLocationManagerDelegate class is the foreground (i.e. visible) then the didEnterRegions triggers and I get both the NSLog as well as the AlertView. However, I get nothing when the app is in the background or, essentially, if the screen is showing anything but the delegate class. I have set "App registers for location updates" under "Required background modes" in the plist although I'm not sure that's even necessary. Here's what I think is the relevant code although I may be wrong (and will gladly add more). I should note that everything in viewDidLoad is wrapped

didEnterRegion works in foreground but not background or other VCs

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问题 If the app is running and the CLLocationManagerDelegate class is the foreground (i.e. visible) then the didEnterRegions triggers and I get both the NSLog as well as the AlertView. However, I get nothing when the app is in the background or, essentially, if the screen is showing anything but the delegate class. I have set "App registers for location updates" under "Required background modes" in the plist although I'm not sure that's even necessary. Here's what I think is the relevant code