Changing the Select on Up / Select on Down in Navigation via script

Question

I'm trying to find out how to change the Select on Up and the Select on Down under Navigation in the button script. I took a look at the script reference for UI.Selectable, but I couldn't find anything to change it, only to find other buttons. I suppose I could set the selected button manually in the script when the player presses up or down, but I would much rather find a way to change the navigation instead. The reason I need to do this is because the buttons are prefabs instantiated seperately based on an array, so the button above / below won't be necessarily be same (but they can be if need be), and when I tried to set the navigation in the prefabs(a long shot to be sure), they accepted the information and kept it, but still didn't navigate.

P.S I apologize for the run on sentences, it's a bad habit of mine.

Answer 1

Answer by Zelek · Jan 20, 2015 at 10:57 AM

Just ran into this same issue here. It looks like you just need to create a new Navigation struct and then assign it like so:

 Navigation customNav = new Navigation();
 customNav.mode = Navigation.Mode.Explicit;
 customNav.selectOnDown = someSpecificSelectable;
 _myObject.navigation = customNav;

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Answer 2

Answer by DigitalDesignDude · May 22, 2020 at 06:49 AM

Adding on to what Zelek shared to make it easier for those less experienced.

 using UnityEngine.UI;
 
 public GameObject MyButton1;
 public GameObject MyButton2;
 
 public GameObject ObjectToHaveNewNav;
 
 
 //Create a new navigation
 Navigation NewNav = new Navigation();
 NewNav.mode = Navigation.Mode.Explicit;
 
 //Set what you want to be selected on down, up, left or right;
 NewNav.selectOnUp = MyButton1.GetComponent<Button>();
 NewNav.selectOnDown = MyButton2.GetComponent<Button>();
 
 
 //Assign the new navigation to your desired button or ui Object
 ObjectToHaveNewNav.GetComponent<Button>().navigation = NewNav;

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Changing the Select on Up / Select on Down in Navigation via script

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