CODEWITHSUNDEEP
c#xamarin.iosxamarin
Jack
Jack

Reputation: 3670

How to use the NavigationController from a tabbed ViewController?

I have made an application for iOS in Xamarin Studio, the app uses primarily a Tabbar Controller to navigate views, but also a NavigationController.

How would I make the navigationController work with the tabController?

I've created a Github repository for those who want to help me solve the problem with the combination of total Tabs Controller and Navigation Controller.

See my advanced flowchart created in paint.

I wish that Xamarin Studio didn't crash so that I've could get some output on what I'm doing.

Upvotes: 2

Views: 105

Answers (1)

Pete
Pete

Reputation: 4746

There was several issues with getting the navigation properly working.

The Storyboard did not have any NavigationController, so this hindered some of the navigation attempts being made as Exceptions where being thrown on this being null.

Other issues included the Maps not being initialized for the Karta button, requiring the MapsServices.ProvideAPIKey to be called in the AppDelegate FinishedLaunching

There was a couple UITableViewSource being used where the NavigationController was being passed down to these implementations. I didn't like this approach, so adjusted so that the selected item would be raised via a custom event handler to the parent Controller for further processing, and navigation occuring from there, instead of in the UITableViewSource where it was originally attempted. Those were also null anyway before any corrections.

There was also a couple issues where UIViewController's were being initialized referencing a NIB instance, although the content of the view was generated from code causing some Exceptions as well.

The above changes solved the Navigation issues @Jack was experiencing, although there is still a fair amount of work for @Jack to progress with this to finish off his application, and the fixes applied focused only on the Navigation issues he was experiencing (apart from the maps fix).

Once your back online @Jack, let me know as hopefully this should cover things from a Navigation point as I tried this thoroughly and I will send over the project. This is far from complete though, however you don't get Navigation related issues now.

Upvotes: 2

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