Tab between input fields

Dude those code are broken, why? well you need to have just the input field, i made my own code which can switch between 2 ore more Inputs Fields.

Code (CSharp):

1.     public InputField loginNameField;
2.     public InputField loginPassField;
3.  
4.     private void Update()
5.     {
6.         if (Input.GetKeyDown(KeyCode.Tab))
7.         {
8.             if (loginNameField.isFocused)
9.             {
10.                 EventSystem.current.SetSelectedGameObject(loginPassField.gameObject, null);
11.                 loginPassField.OnPointerClick(new PointerEventData(EventSystem.current));
12.             }
13.  
14.             if(loginPassField.isFocused)
15.             {
16.                 EventSystem.current.SetSelectedGameObject(loginNameField.gameObject, null);
17.                 loginNameField.OnPointerClick(new PointerEventData(EventSystem.current));
18.             }
19.         }
20.     }

 

I made an implementation of this myself after needing more than the basic suggestions people have provided - I thought I'd share it here for anyone interested.

I found:

• Selectable.allSelectables[0] does NOT always provide the top-most selection
• Getting the next selectable for a complex layout isn't straight-forward

I've implemented:

• A simple sorting method that orders all active selectables based on their X and Y positioning (left-to-right followed by top-to-bottom)
• A simple, reliable way to navigate forward/backward; includes optional wrap-around to first/last, respectively
• Navigation with Tab, Enter and Numpad Enter
  (Enter is setup to only work from input fields, where it will also only select the next selection if it is an input field or button)
• If nothing is selected, the first selectable is selected (Enter is setup to only work if it is an input field or button)

NOTE: The sorting of selectables is done each time (as this is a simple implementation), you could do this elsewhere when UI elements are enabled/disabled instead.

Code (CSharp):

1. using System.Collections.Generic;
2. using UnityEngine;
3. using UnityEngine.EventSystems;
4. using UnityEngine.UI;
5.  
6. public class UIHotkeySelect : MonoBehaviour
7. {
8.     private List<Selectable> m_orderedSelectables;
9.  
10.     private void Awake()
11.     {
12.         m_orderedSelectables = new List<Selectable>();
13.     }
14.  
15.     private void Update()
16.     {
17.         if (Input.GetKeyDown(KeyCode.Tab))
18.         {
19.             HandleHotkeySelect(Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift), true, false); // Navigate backward when holding shift, else navigate forward.
20.         }
21.  
22.         if (Input.GetKeyDown(KeyCode.Return) || Input.GetKeyDown(KeyCode.KeypadEnter))
23.         {
24.             HandleHotkeySelect(false, false, true);
25.         }
26.     }
27.  
28.     private void HandleHotkeySelect(bool _isNavigateBackward, bool _isWrapAround, bool _isEnterSelect)
29.     {
30.         SortSelectables();
31.  
32.         GameObject selectedObject = EventSystem.current.currentSelectedGameObject;
33.         if (selectedObject != null && selectedObject.activeInHierarchy) // Ensure a selection exists and is not an inactive object.
34.         {
35.             Selectable currentSelection = selectedObject.GetComponent<Selectable>();
36.             if (currentSelection != null)
37.             {
38.                 if (_isEnterSelect)
39.                 {
40.                     if (currentSelection.GetComponent<InputField>() != null)
41.                     {
42.                         ApplyEnterSelect(FindNextSelectable(m_orderedSelectables.IndexOf(currentSelection), _isNavigateBackward, _isWrapAround));
43.                     }
44.                 }
45.                 else // Tab select.
46.                 {
47.                     Selectable nextSelection = FindNextSelectable(m_orderedSelectables.IndexOf(currentSelection), _isNavigateBackward, _isWrapAround);
48.                     if (nextSelection != null)
49.                     {
50.                         nextSelection.Select();
51.                     }
52.                 }
53.             }
54.             else
55.             {
56.                 SelectFirstSelectable(_isEnterSelect);
57.             }
58.         }
59.         else
60.         {
61.             SelectFirstSelectable(_isEnterSelect);
62.         }
63.     }
64.  
65.     ///<summary> Selects an input field or button, activating the button if one is found. </summary>
66.     private void ApplyEnterSelect(Selectable _selectionToApply)
67.     {
68.         if (_selectionToApply != null)
69.         {
70.             if (_selectionToApply.GetComponent<InputField>() != null)
71.             {
72.                 _selectionToApply.Select();
73.             }
74.             else
75.             {
76.                 Button selectedButton = _selectionToApply.GetComponent<Button>();
77.                 if (selectedButton != null)
78.                 {
79.                     _selectionToApply.Select();
80.                     selectedButton.OnPointerClick(new PointerEventData(EventSystem.current));
81.                 }
82.             }
83.         }
84.     }
85.  
86.     private void SelectFirstSelectable(bool _isEnterSelect)
87.     {
88.         if (m_orderedSelectables.Count > 0)
89.         {
90.             Selectable firstSelectable = m_orderedSelectables[0];
91.             if (_isEnterSelect)
92.             {
93.                 ApplyEnterSelect(firstSelectable);
94.             }
95.             else
96.             {
97.                 firstSelectable.Select();
98.             }
99.         }
100.     }
101.  
102.     private Selectable FindNextSelectable(int _currentSelectableIndex, bool _isNavigateBackward, bool _isWrapAround)
103.     {
104.         Selectable nextSelection = null;
105.  
106.         int totalSelectables = m_orderedSelectables.Count;
107.         if (totalSelectables > 1)
108.         {
109.             if (_isNavigateBackward)
110.             {
111.                 if (_currentSelectableIndex == 0)
112.                 {
113.                     nextSelection = (_isWrapAround) ? m_orderedSelectables[totalSelectables - 1] : null;
114.                 }
115.                 else
116.                 {
117.                     nextSelection = m_orderedSelectables[_currentSelectableIndex - 1];
118.                 }
119.             }
120.             else // Navigate forward.
121.             {
122.                 if (_currentSelectableIndex == (totalSelectables - 1))
123.                 {
124.                     nextSelection = (_isWrapAround) ? m_orderedSelectables[0] : null;
125.                 }
126.                 else
127.                 {
128.                     nextSelection = m_orderedSelectables[_currentSelectableIndex + 1];
129.                 }
130.             }
131.         }
132.  
133.         return (nextSelection);
134.     }
135.  
136.     private void SortSelectables()
137.     {
138.         List<Selectable> originalSelectables = Selectable.allSelectables;
139.         int totalSelectables = originalSelectables.Count;
140.         m_orderedSelectables = new List<Selectable>(totalSelectables);
141.         for (int index = 0; index < totalSelectables; ++index)
142.         {
143.             Selectable selectable = originalSelectables[index];
144.             m_orderedSelectables.Insert(FindSortedIndexForSelectable(index, selectable), selectable);
145.         }
146.     }
147.  
148.     ///<summary> Recursively finds the sorted index by positional order within m_orderedSelectables (positional order is determined from left-to-right followed by top-to-bottom). </summary>
149.     private int FindSortedIndexForSelectable(int _selectableIndex, Selectable _selectableToSort)
150.     {
151.         int sortedIndex = _selectableIndex;
152.         if (_selectableIndex > 0)
153.         {
154.             int previousIndex = _selectableIndex - 1;
155.             Vector3 previousSelectablePosition = m_orderedSelectables[previousIndex].transform.position;
156.             Vector3 selectablePositionToSort = _selectableToSort.transform.position;
157.  
158.             if (previousSelectablePosition.y == selectablePositionToSort.y)
159.             {
160.                 if (previousSelectablePosition.x > selectablePositionToSort.x)
161.                 {
162.                     // Previous selectable is in front, try the previous index:
163.                     sortedIndex = FindSortedIndexForSelectable(previousIndex, _selectableToSort);
164.                 }
165.             }
166.             else if (previousSelectablePosition.y < selectablePositionToSort.y)
167.             {
168.                 // Previous selectable is in front, try the previous index:
169.                 sortedIndex = FindSortedIndexForSelectable(previousIndex, _selectableToSort);
170.             }
171.         }
172.  
173.         return (sortedIndex);
174.     }
175. }
176.  

 

Excellent job!!

 

Thanks Kzaarka. I will see how that functionality suits me too .

It is mind-boggling how tab and shift-tab is not the default form of navigation, like it is everywhere else.
"I really want arrow keys to navigate, it's not like I use them to move cursors in input boxes", said no one, ever.

 

Hi,

Thanks for sharing your script!

I'm using a modified version of this script and found that it doesn't work for items in an ILayoutGroup, since their reported X and Y coords are the same. For that reason, you might want to add an extra clause in FindSortedIndexForSelectable to compare GetSiblingOrder of the previous and current items in case their coords were the same, as that would fix this edge case.

 

Thanks a bunch ConflictedDev, this works great, very nice work!

 

Thanks ConflictedDev, that works great.

For those using his script, you may want to refactor so that SortSelectables() is not getting called everytime a hotkey is pressed. It's a little expensive. You could instead do it in Start() and then again whenever you add/remove UI elements.

Here's my iteration of the script. I have:

• Moved SortSelectables() to Start() and made it public
• Removed 'Enter' functionality because I didn't need it. Sorry
• Turned off 'wrap-around' by default. Simply change argument to HandleHotkeySelect().
• Added a couple comments.
• Tried to structure code a bit differently to make it easier to understand.
• Re-formatted the way I like it. Sorry again

Code (CSharp):

1. using System.Collections.Generic;
2. using UnityEngine;
3. using UnityEngine.EventSystems;
4. using UnityEngine.UI;
5.  
6. public class UITabNavigator : MonoBehaviour
7. {
8.     private void Awake()
9.     {
10.         this._orderedSelectables = new List<Selectable>();
11.     }
12.  
13.     private void Start()
14.     {
15.         this.SortSelectables();
16.     }
17.  
18.     private void Update()
19.     {
20.         if (Input.GetKeyDown(KeyCode.Tab))
21.         {
22.             // Navigate backward when holding shift, else navigate forward.
23.             this.HandleHotkeySelect(Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift), false);
24.         }
25.     }
26.  
27.     /// <summary>
28.     /// Iterates through all selectables in scene and orders them based on their position.
29.     /// </summary>
30.     public void SortSelectables()
31.     {
32.         List<Selectable> originalSelectables = Selectable.allSelectables;
33.         int totalSelectables = originalSelectables.Count;
34.         this._orderedSelectables = new List<Selectable>(totalSelectables);
35.         for (int index = 0; index < totalSelectables; ++index)
36.         {
37.             Selectable selectable = originalSelectables[index];
38.             this._orderedSelectables.Insert(
39.                 this.FindSortedIndexForSelectable(index, selectable), selectable);
40.         }
41.     }
42.  
43.     private void HandleHotkeySelect(bool isNavigateBackward, bool isWrapAround)
44.     {
45.         GameObject selectedObject = EventSystem.current.currentSelectedGameObject;
46.         if (selectedObject != null && selectedObject.activeInHierarchy) // Ensure a selection exists and is not an inactive object.
47.         {
48.             Selectable currentSelection = selectedObject.GetComponent<Selectable>();
49.             if (currentSelection != null)
50.             {
51.                 Selectable nextSelection = this.FindNextSelectable(
52.                     this._orderedSelectables.IndexOf(currentSelection), isNavigateBackward, isWrapAround);
53.                 if (nextSelection != null)
54.                 {
55.                     nextSelection.Select();
56.                 }
57.             }
58.             else
59.             {
60.                 this.SelectFirstSelectable();
61.             }
62.         }
63.         else
64.         {
65.             this.SelectFirstSelectable();
66.         }
67.     }
68.  
69.     private void SelectFirstSelectable()
70.     {
71.         if (this._orderedSelectables != null && this._orderedSelectables.Count > 0)
72.         {
73.             Selectable firstSelectable = this._orderedSelectables[0];
74.             firstSelectable.Select();
75.         }
76.     }
77.  
78.     /// <summary>
79.     /// Looks at ordered selectable list to find the selectable we are trying to navigate to and returns it.
80.     /// </summary>
81.     private Selectable FindNextSelectable(int currentSelectableIndex, bool isNavigateBackward, bool isWrapAround)
82.     {
83.         Selectable nextSelection = null;
84.  
85.         int totalSelectables = this._orderedSelectables.Count;
86.         if (totalSelectables > 1)
87.         {
88.             if (isNavigateBackward)
89.             {
90.                 if (currentSelectableIndex == 0)
91.                 {
92.                     nextSelection = (isWrapAround) ? this._orderedSelectables[totalSelectables - 1] : null;
93.                 }
94.                 else
95.                 {
96.                     nextSelection = this._orderedSelectables[currentSelectableIndex - 1];
97.                 }
98.             }
99.             else // Navigate forward.
100.             {
101.                 if (currentSelectableIndex == (totalSelectables - 1))
102.                 {
103.                     nextSelection = (isWrapAround) ? this._orderedSelectables[0] : null;
104.                 }
105.                 else
106.                 {
107.                     nextSelection = this._orderedSelectables[currentSelectableIndex + 1];
108.                 }
109.             }
110.         }
111.  
112.         return nextSelection;
113.     }
114.  
115.     /// <summary>
116.     /// Recursively finds the sorted index by positional order within _orderedSelectables (positional order is determined from left-to-right followed by top-to-bottom).
117.     /// </summary>
118.     private int FindSortedIndexForSelectable(int selectableIndex, Selectable selectableToSort)
119.     {
120.         int sortedIndex = selectableIndex;
121.         if (selectableIndex > 0)
122.         {
123.             int previousIndex = selectableIndex - 1;
124.             Vector3 previousSelectablePosition = this._orderedSelectables[previousIndex].transform.position;
125.             Vector3 selectablePositionToSort = selectableToSort.transform.position;
126.  
127.             if ((previousSelectablePosition.y < selectablePositionToSort.y)
128.                 || (previousSelectablePosition.y == selectablePositionToSort.y
129.                     && previousSelectablePosition.x > selectablePositionToSort.x))
130.             {
131.                 // Previous selectable is in front, try the previous index:
132.                 sortedIndex = this.FindSortedIndexForSelectable(previousIndex, selectableToSort);
133.             }
134.         }
135.  
136.         return sortedIndex;
137.     }
138.  
139.     private List<Selectable> _orderedSelectables = null;
140. }

 

Urgh... tab should be basic functionality. I also wanted the two most recent UITabNavigators classes to ignore selectables that were on canvas groups that were not interactable. So I had to modify...

Code (CSharp):

1.  
2.         /// <summary>
3.         /// Iterates through all selectables in scene and orders them based on their position.
4.         /// </summary>
5.         public void SortSelectables()
6.         {
7.             var originalSelectables = Selectable.allSelectables;
8.             var totalSelectables = originalSelectables.Count;
9.             _orderedSelectables = new List<Selectable>(totalSelectables);
10.             var sortIndex = 0;
11.             for (var index = 0; index < totalSelectables; ++index)
12.             {
13.                 var selectable = originalSelectables[index];
14.                
15.                 if (!selectable.IsInteractable()) continue;
16.                
17.                 _orderedSelectables.Insert(
18.                     FindSortedIndexForSelectable(sortIndex, selectable), selectable);
19.                 sortIndex++;
20.             }
21.         }
22.  

But, after I did this, they work fabulously! I can suddenly navigate through my form, and was even pleasantly surprised when I was able to tab through the form, past the submit button to my back button, press space bar, and it went back to the previous form. Where I was able to hit tab, get the first element, and tab through to the button to navigate back to my other form.... all with tab and space. Phew.... this was bugging me all evening. Thanks folks.

 

This is probably necro'ing, but.... if anyone is curious, you would initiate the Move Next code when the user enters the letter. (It's obvious to me, but, since it wasn't obvious to Zealous, I'm stating it here.)
Unity's EventSystem raises an event on editing the InputField. This allows you to check, validate, etc., the input text in the field. Since Zealous is doing a single character entry per field, it makes sense to just put in the OnValueChanged hook to move to the next field. (See code for when the user presses tab above for actual code.)

 

Also...
Unity still hasn't fixed this as of 2018.1...
But, on a plus side, you can do Photogrammetry like a champ in unity! (Just... hope that you don't need an UI in unity!!! or, other bug fixes...)

 

What a wonderful, neat piece of code.
Thanks for sharing, it works seamlessly!
Cheers,

 

I'm using this version, which I modified (from kryzodoze's rev), that uses a list where you set references to Selectables, rather than dynamically try to fetch all Selectables and work out an order based on positioning

Features:
- Explict control over tabbing order.
- Can provide guarantee of existence of selectables (can be wired up statically from Unity or set explicitly from code).
- Can nest Selectable game objects under KeyboardSelectableGroup and disabling the tree of game objects works as expected (disables that keyboard selectable group).

Not Features:
- Does not dynamically detect UI, all references must be set explicitly (either through the Unity editor or code).
- Having more than 1 keyboard selectable group doesn't work with this snippet (but this could be rewritten to have a group of groups that controls the UI and uses the concatenation of all selectables from groups within the group).

Code (CSharp):

1.  
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.EventSystems;
5. using UnityEngine.UI;
6.  
7. public class KeyboardSelectableGroup : MonoBehaviour
8. {
9.     public List<Selectable> selectables = new List<Selectable>();
10.  
11.     private void Update()
12.     {
13.         if (Input.GetKeyDown(KeyCode.Tab))
14.         {
15.             // Navigate backward when holding shift, else navigate forward.
16.             this.HandleHotkeySelect(Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift), true);
17.         }
18.         if (Input.GetKeyDown(KeyCode.Escape) || Input.GetKeyDown(KeyCode.Return))
19.         {
20.             EventSystem.current.SetSelectedGameObject(null, null);
21.         }
22.     }
23.  
24.     private void HandleHotkeySelect(bool isNavigateBackward, bool isWrapAround)
25.     {
26.         GameObject selectedObject = EventSystem.current.currentSelectedGameObject;
27.         if (selectedObject != null && selectedObject.activeInHierarchy) // Ensure a selection exists and is not an inactive object.
28.         {
29.             Selectable currentSelection = selectedObject.GetComponent<Selectable>();
30.             if (currentSelection != null)
31.             {
32.                 Selectable nextSelection = this.FindNextSelectable(
33.                     selectables.IndexOf(currentSelection), isNavigateBackward, isWrapAround);
34.                 if (nextSelection != null)
35.                 {
36.                     nextSelection.Select();
37.                 }
38.             }
39.             else
40.             {
41.                 this.SelectFirstSelectable();
42.             }
43.         }
44.         else
45.         {
46.             this.SelectFirstSelectable();
47.         }
48.     }
49.  
50.     private void SelectFirstSelectable()
51.     {
52.         if (selectables != null && selectables.Count > 0)
53.         {
54.             Selectable firstSelectable = selectables[0];
55.             firstSelectable.Select();
56.         }
57.     }
58.  
59.     /// <summary>
60.     /// Looks at ordered selectable list to find the selectable we are trying to navigate to and returns it.
61.     /// </summary>
62.     private Selectable FindNextSelectable(int currentSelectableIndex, bool isNavigateBackward, bool isWrapAround)
63.     {
64.         Selectable nextSelection = null;
65.  
66.         int totalSelectables = selectables.Count;
67.         if (totalSelectables > 1)
68.         {
69.             if (isNavigateBackward)
70.             {
71.                 if (currentSelectableIndex == 0)
72.                 {
73.                     nextSelection = (isWrapAround) ? selectables[totalSelectables - 1] : null;
74.                 }
75.                 else
76.                 {
77.                     nextSelection = selectables[currentSelectableIndex - 1];
78.                 }
79.             }
80.             else // Navigate forward.
81.             {
82.                 if (currentSelectableIndex == (totalSelectables - 1))
83.                 {
84.                     nextSelection = (isWrapAround) ? selectables[0] : null;
85.                 }
86.                 else
87.                 {
88.                     nextSelection = selectables[currentSelectableIndex + 1];
89.                 }
90.             }
91.         }
92.  
93.         return nextSelection;
94.     }
95.  
96. }

 

Works great, thank you

 

Amazing!! Works like charm!!

 

While this is a very simple thing to implement by ourselves, I can't think a reason Unity doesn't have it. Is there some technical issue or they just don't want to do that? Even the new Input System has nothing about that.

 

Thx ! working well !

 

Thanks jlt for the final touch on the script, and the rest of you guys. This works great for tabbing between input fields, I only have 11 max input fields on the screen at any time, but you can set the order and go in reverse. Saved me hours of doing it manually for sure...

 

Thank you for the script. It works wonders!

Also, could you *pretty please* modify it so it accepts multiple groups?

 

Fantastic! Thank you a lot! Easy to Set and Full Working

 

This gave me a null error when I got to the end of the available selectable objects. I had to add:

if (system.currentSelectedObject.GetComponent<Selectable>().FindSelectableOnDown() == null) return;

after the KeyCode.Tab line to prevent the null error.

 

Thanks for this mate. It worked an absolute treat

 

THE SIMPLEST SOLUTION until Unity wake up

Code (CSharp):

1. using UnityEngine.EventSystems;
2.  
3. ...
4. void Update()
5.     {
6.         if (Input.GetKeyDown(KeyCode.Tab))
7.         {
8.             GameObject c = EventSystem.current.currentSelectedGameObject;
9.             if (c == null) { return; }
10.          
11.             Selectable s = c.GetComponent<Selectable>();
12.             if (s == null) { return; }
13.  
14.             Selectable jump = Input.GetKey(KeyCode.LeftShift)
15.                 ? s.FindSelectableOnUp() : s.FindSelectableOnDown();
16.             if (jump != null) { jump.Select(); }
17.         }
18.     }

 

Based on @Fattie script but using the new input system + also handles left / right selectable.
Should be fairly easy to understand the basic idea

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.EventSystems;
3. using UnityEngine.InputSystem;
4. using UnityEngine.UI;
5.  
6. public class TabSelectHelper : MonoBehaviour
7. {
8.     void Update() {
9.         if (Keyboard.current.tabKey.wasPressedThisFrame) {
10.             GameObject c = EventSystem.current.currentSelectedGameObject;
11.             if (c == null) return;
12.  
13.             Selectable s = c.GetComponent<Selectable>();
14.             if (s == null) return;
15.  
16.             Selectable jump = Keyboard.current.shiftKey.isPressed ? s.FindSelectableOnUp() : s.FindSelectableOnDown();
17.            
18.             // try similar direction
19.             if (!jump) {
20.                 jump = Keyboard.current.shiftKey.isPressed ? s.FindSelectableOnLeft() : s.FindSelectableOnRight();
21.                 if (!jump) return;
22.             }
23.  
24.             jump.Select();
25.         }
26.     }
27. }
28.  

 

I liked @Fattie 's version but wanted a default selected option for my login screen.

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.UI;
3. using UnityEngine.EventSystems;
4.  
5. public class TabNav : MonoBehaviour {
6.     public GameObject d = null; // default selected
7.  
8.     private void Start() {
9.         EventSystem.current.SetSelectedGameObject( d );
10.     }
11.  
12.     private void Update() {
13.         if (Input.GetKeyDown( KeyCode.Tab )) {
14.             GameObject c = EventSystem.current.currentSelectedGameObject;
15.             if (c == null) { return; }
16.  
17.             Selectable s = c.GetComponent<Selectable>();
18.             if (s == null) { return; }
19.  
20.             Selectable jump = Input.GetKey( KeyCode.LeftShift ) ? s.FindSelectableOnUp() : s.FindSelectableOnDown();
21.             if (jump != null) { jump.Select(); }
22.         }
23.     }
24. }
25.  

 

Anyone who wants to use a script like this with multiline input fields will find that the tab overwrites / gets written into multiline fields. To prevent this, you can add a validation function to prevent tab characters in those input fields.

Code (CSharp):

1. private void Start()
2. {
3.     InputField field = GetComponent<InputField>();
4.     if(field != null)
5.     {
6.         field.onValidateInput += NoTabValidation;
7.     }
8. }
9.  
10. private char NoTabValidation(string input, int charIndex, char newChar)
11. {
12.       if(newChar == '\t')
13.       {
14.          return '\0';
15.       }
16.       return newChar;
17. }

 

Perfect for me: valid for InputFields, Buttons, Toggles... together

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class mbFormTabOrder : MonoBehaviour
{

[SerializeField]
private Selectable[] gascFieldsNext; // InputFields, Buttons, Toggles

private int giIdCur;

//=======================

void Start() {
giIdCur = 0;
vSetPos( giIdCur );
}

//=======================
void Update() {
if (Input.GetKeyUp( KeyCode.Return ) || Input.GetKeyUp( KeyCode.Tab )) {
giIdCur = ( giIdCur + 1 ) % gascFieldsNext.Length;
vSetPos( giIdCur );
}
}

//=======================
private void vSetPos( int i_Id ) {
gascFieldsNext[ i_Id ].Select();
}
}

 

Added logic to make shift-tab work too

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.EventSystems;
3. using UnityEngine.UI;
4.  
5. public class TabNavigation : MonoBehaviour
6. {
7.     void Update()
8.     {
9.         if (Input.GetKeyDown(KeyCode.Tab))
10.         {
11.             EventSystem system = EventSystem.current;
12.             GameObject curObj = system.currentSelectedGameObject;
13.             GameObject nextObj = null;
14.             if (!curObj)
15.             {
16.                 nextObj = system.firstSelectedGameObject;
17.             }
18.             else
19.             {
20.                 Selectable curSelect = curObj.GetComponent<Selectable>();
21.                 Selectable nextSelect =
22.                     Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)
23.                         ? curSelect.FindSelectableOnUp()
24.                         : curSelect.FindSelectableOnDown();
25.                 if (nextSelect)
26.                 {
27.                     nextObj = nextSelect.gameObject;
28.                 }
29.             }
30.             if (nextObj)
31.             {
32.                 system.SetSelectedGameObject(nextObj, new BaseEventData(system));
33.             }
34.         }
35.     }
36. }
37.  

 

How can you modify this to work top to bottom first and then left to right?

 

Code (CSharp):

1. using TMPro;
2. using UnityEngine.UI;
3. using System.Collections;
4. using System.Collections.Generic;
5. using UnityEngine;
6. using UnityEngine.InputSystem;
7.  
8. //used so we can easily selcet the next text box when enter or tab is pressed
9. public class InputFieldGroup : MonoBehaviour
10. {
11.     [SerializeField] private List<TMP_InputField> _inputFields;
12.  
13.     private int _prevSelectedIdx = 0;
14.     private bool _preventSelection = false;
15.  
16.     private void Start()
17.     {
18.         for (int i = 0; i < _inputFields.Count; i++)
19.         {
20.             var field = _inputFields[i];
21.             var tempIdx = i; //needed or all teh lambdas get the same value by reference for some dum S*** reason
22.             field.onSelect.AddListener((data) =>
23.            {
24.                _preventSelection = false;
25.                _prevSelectedIdx = tempIdx;
26.            });
27.  
28.             field.onDeselect.AddListener((data) =>
29.                 {
30.                     if (!AreAnySelected())
31.                         _preventSelection = true;
32.                 });
33.         }
34.     }
35.  
36.  
37.     void Update()
38.     {
39.         if (Keyboard.current.tabKey.wasPressedThisFrame || Keyboard.current.enterKey.wasPressedThisFrame)
40.         {
41.             if (!_preventSelection) //so it works with multiple input field groups on screen at once
42.             {
43.                 SelectNextInputField();
44.  
45.             }
46.         }
47.     }
48.  
49.     private void SelectNextInputField()
50.     {
51.         var next = _inputFields[(_prevSelectedIdx + 1) % _inputFields.Count];
52.         next.Select();
53.         next.ActivateInputField();
54.     }
55.  
56.     private bool AreAnySelected()
57.     {
58.         for (int i = 0; i < _inputFields.Count; i++)
59.         {
60.             if (_inputFields[i].isFocused) return true;
61.         }
62.         return false;
63.     }
64.  
65. }
66.  

 

I get that this is an old post, but if anyone is looking for a simplified solution, here it is:

Code (CSharp):

1.         if (Input.GetKeyDown(KeyCode.Tab)) {
2.             if (emailInputField.isFocused) {
3.                 usernameInputField.ActivateInputField();
4.                 usernameInputField.Select();
5.             } else if (usernameInputField.isFocused) {
6.                 passwordInputField.ActivateInputField();
7.                 passwordInputField.Select();
8.             } else if (passwordInputField.isFocused) {
9.                 emailInputField.ActivateInputField();
10.                 emailInputField.Select();
11.             }
12.         }

 

This was extremely helpful to me.

 

Was trying to solve this too. But wanted something more generic. Drag your UI elements into the List in the inspector and wala!

Code (CSharp):

1. using System.Collections.Generic;
2. using UnityEngine;
3. using UnityEngine.EventSystems;
4. using UnityEngine.UI;
5.  
6. public class TabToNextGUIElement : MonoBehaviour
7. {
8.     public List<Selectable> elements;   // add UI elements in inspector in desired tabbing order
9.     int index;
10.  
11.     void Start()
12.     {
13.         index = -1;           // always leave at -1 initially
14.         //elements[0].Select(); // uncomment to have focus on first element in the list
15.     }
16.  
17.     void Update()
18.     {
19.         if (Input.GetKeyDown(KeyCode.Tab))
20.         {
21.             for (int i = 0; i < elements.Count; i ++)
22.             {
23.                 if (elements[i].gameObject.Equals(EventSystem.current.currentSelectedGameObject))
24.                 {
25.                     index = i;
26.                     break;
27.                 }
28.             }
29.  
30.             if (Input.GetKey(KeyCode.LeftShift))
31.             {
32.                 index = index > 0 ? --index : index = elements.Count - 1;
33.             }
34.             else
35.             {
36.                 index = index < elements.Count - 1 ? ++index : 0;
37.             }
38.             elements[index].Select();
39.         }
40.     }
41. }
42.  

 

super easy + useful, thx .

 

TY, yeah - that's the cleanest most refined version we have come up with.

"workarounds for batshit unity problems" is like a whole industry :/

 

This is my version that doesn't use the Update loop so it only starts waiting for input when the player clicks on the input field. Just put this on your Container for input fields, plop in the order of tab navigation and you're good to go. Works great when your tab orders are a little bit whack. You can just use StopAllCoroutines or StopCoroutine(WaitForInput) but I go the longer way so it's further customizable, perhaps you would also want to check for more inputs.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using TMPro;
4. using UnityEngine;
5. using UnityEngine.EventSystems;
6.  
7. public class InputFieldTabNavigation : MonoBehaviour
8. {
9.     [SerializeField] private List<TMP_InputField> _inputFields;
10.     private int _index;
11.     private Coroutine _waitForInputRoutine;
12.  
13.     private void Start()
14.     {
15.         foreach (var inputField in _inputFields)
16.         {
17.             inputField.onSelect.AddListener((string text)=>{
18.                 StartWaitForInput();
19.             });
20.         }
21.     }
22.  
23.     public void StartWaitForInput()
24.     {
25.         if (_waitForInputRoutine != null) StopCoroutine(_waitForInputRoutine);
26.         _waitForInputRoutine = StartCoroutine(WaitForInput());
27.     }
28.  
29.     public void StopWaitForInput()
30.     {
31.         if (_waitForInputRoutine != null) StopCoroutine(_waitForInputRoutine);
32.     }
33.  
34.     private IEnumerator WaitForInput()
35.     {
36.         yield return null;
37.         while (true)
38.         {
39.             bool isAnySelected = _inputFields.Exists((inputField) => { return inputField.gameObject.Equals(EventSystem.current.currentSelectedGameObject); });
40.             if (!isAnySelected)
41.             {
42.                 yield break;
43.             }
44.  
45.             if (Input.GetKeyDown(KeyCode.Tab))
46.             {
47.                 for (var i = 0; i < _inputFields.Count; i++)
48.                 {
49.                     if (_inputFields[i].gameObject.Equals(EventSystem.current.currentSelectedGameObject))
50.                     {
51.                         _index = i;
52.                         break;
53.                     }
54.  
55.                 }
56.                 if (Input.GetKey(KeyCode.LeftShift))
57.                 {
58.                     _index = _index > 0 ? _index - 1 : _inputFields.Count - 1;
59.                 }
60.                 else
61.                 {
62.                     _index = (_index + 1) % _inputFields.Count;
63.                 }
64.  
65.                 _inputFields[_index].ActivateInputField();
66.                 _inputFields[_index].Select();
67.  
68.             }
69.  
70.             yield return null;
71.         }
72.     }
73. }
74.  

 

My problem: when I press TAB it inserts a tab character, which I don't want.
My solution: throw an error whenever it tries to add a tab character

It's a bit unorthodox, but it works!

Code (CSharp):

1.         inputField.onValidateInput += (txt, index, chr) =>
2.         {
3.             if (chr == '\t')
4.             {
5.                 throw new System.ArgumentException("Tab character not allowed");
6.             }
7.             return chr;
8.         };

This would go in your

Start()

or

Awake()

EDIT: Nvm, i just did more research and you're supposed to

return '\0';

 

This should be standard with Unity TMP Pro. Spent two days looking for a working solution, thanks from the future.