Highlight and selection of the current "middle" value in a vertical List

Question

Hi EW Team,
I want to implement a vertical list where it always display 3 values. I want to link the middle one to a property to store it, but I don't want to have to click on the value to select it: is it possible?
I tried to look at the documentation of the vertical list for my version but couldn't find something relevant for my case.
I would just have to slide touch on the vertical list until I have my value displayed in the middle and it would be it, plus if possible having a lighter shade of background to show it's the current one.

Thank you in advance, Best regards.

Answer 1

Hello,

please have a look into the example "BezierClock" and navigate to the class TimePicker. It shows exactly your use case:

Within the different OnLoadItem() slot methods you will find the key to get the centered item:

// Get the number of the item in the center of the list
var int32 itemCenter = ListHour.GetItemAtPosition( ListHour.Bounds.center );

This number can be used to assign it to your property.

Does this help?

Best regards,

Manfred.

Comments

Thank you, this helped a lot!

I have a question following this: I have a property that stores the current value, but when I leave and I reenter I want the value to start at a value x (example, for a list between -50 and 100, i would like to start at 7).

How could I do that?

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I found how to do this by overriding the method UpdateViewState in the owner class of the component, modifying the value there

thank you :)