uggs uk sale online UWP fix listview grouped header height problem
When UWP comes into play with Xamarin Forms, you notice that several default control settings are often not resulting in a pleasing UI.
One that caught my eye recently was the way the height is set in a grouped lisview header.
So assume following setup, you define a listview and enable grouping. With that you would like to control what is being shown in the header, so you define your own GroupHeader Template. Inside the template, you only need a small display area, so for demo purpose we will only enable a Label control, but are setting it height to a fix amount of 25!Well this is odd! Somehow the height of our headers is larger than what we defined looks like UWP has some default rendering that overrides what we have set.
So after some digging through the source code of Xamarin forms, I not found any special setting that could trigger this. In other words it not something Xamarin does to the UWP rendering of the listview.
This meant I needed to go look at the default template settings of the UWP control itself. What I found was that the listview control has a special header template style defined that uses a specific value for the minimum height for the ListViewHeaderItemMinHeight!
It set to 44 this explains our weird look and feel on UWP.
The definition for this style can be found here this in mind it actually very easy to fix this in our app. All we need to do is provide a better minimum height value for the given style key.