An in-app status bar for Xamarin.iOS and MvvmCross

For an iPad app for our customer Smart Enterprise Solutions we wanted to display multiple messages to the user. These messages were mainly feedback from a business logic layer that communicated with a backend. The messages should be visible inside the app. Some messages needed to be confirmed by the user while others needed to disappear after a defined timespan.

This final status bar looks like this:

StatusBar

The code is available at https://github.com/lothrop/StatusBar.iOS.

The status bar view is called StatusView. To use StatusView, use auto-layouts to snap it to the left, right and bottom of your screen. StatusView is backed by the ViewModel MessageViewModel. MessageViewModel contains an ObservableCollection<IMessageItem>. You can insert items at any point in the collection, remove items or move items within the collection.

For a usage example, take a look at the MainViewController.cs file.

A big thanks to Smart Enterprise Solutions for letting me publish the code.