Changing UI Button color C# -Solved-

Unity Engine
1

Hi,
i have tried to change UI buttons color unsuccesfully with scripting also is it possible to change Normal Color, pressed Color.

Can anyone help? Trying to do it with C#

2

i have tried like this:

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class RaceAndAttributeController : MonoBehaviour {
    public Color color;

    void Start ()
    {
        color = new Color (0.2f, 0.3f, 0.4f, 0.5f);
        GetComponent<Button> ().colors = color;
    }

but it gives error:Assets/Scripts/RaceAndAttributeController.cs(13,41): error CS0029: Cannot implicitly convert type UnityEngine.Color' to UnityEngine.UI.ColorBlock’

1 Like
3

the error tells you that “colors” is of type ColorBlock while your color is not.
You cannot simply assign a different data type to another variable. The data inside needs to match - or you have to cast it on your own.
ColorBlock probably contains several variables of type Color.
Add another DOT behind GetComponent().colors to see what’s “inside”.

1 Like
4

ok thx for advice i got bit further now. I still get error:
NullReferenceException: Object reference not set to an instance of an object
RaceAndAttributeController.Start () (at Assets/Scripts/RaceAndAttributeController.cs:10)

why it says nullreference exeption even color has value = RGBA(0.135, 0.167, 0.266, 1.000)

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class RaceAndAttributeController : MonoBehaviour {
    public Color color;

    void Start ()
    {
        color = GetComponent<Button> ().colors.normalColor;
        print (color);
    }
5

Here is the answer but its in java. Can anyone help to translate to C#

    var colors = GetComponent<Button> ().colors;
    colors.normalColor = Color.red;
    GetComponent<Button> ().colors = colors;
6

Ok i figured out this.

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class RaceAndAttributeController : MonoBehaviour {
    public Color color;
    public ColorBlock colorBlockHuman;
    public GameObject humanButton;

    private Button tempButton;

    void Start ()
    {
        tempButton = humanButton.GetComponent<Button> ();
        colorBlockHuman = tempButton.colors;
        colorBlockHuman.normalColor = new Color (0.5f, 0.5f, 0.5f, 1.0f);
        tempButton.colors = colorBlockHuman;

    }