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I have in my hierarchy tab a Canvas. Inside the canvas I have an Input Field that holds a placeholder and a text.

I read the documentations and didn't find how to hide the Input field.

I want that if a if statement is true, then it will show the input field. Else you won't see it.

How can I implement it?

EDIT

I thought about an idea to test: If I press the O key on the keyboard it disappears, and if I press again it appears; and so on.

This is what I tried:

bool shown = true;
// Use this for initialization
void Start () {

}

// Update is called once per frame
void Update () {
    GameObject inputField = GameObject.Find("InputField");
    if (Input.GetKeyDown (KeyCode.O)) {
        shown = !shown;
        inputField.SetActive (shown);
    }
}

I play the scene and when I press the O key I get

NullReferenceException: Object reference not set to an instance of an object

If I double-click on the console message it highlights me the if (Input.GetKeyDown (KeyCode.O)) { line.

Something not good does the SetActive(bool) method, I suppose.

share|improve this question
    
The canvas tag is for HTML5 only, please don't use it for unity – Bálint Sep 29 '16 at 18:03
up vote 2 down vote accepted

You can reference the InputField as a GameObject and call the SetActive(false) method on it to turn it off. You can then use your if statement, to turn the same GameObject on.

Edit:

public class SomeClass : MonoBehaviour {
    public GameObject inputField;

    void SomeMethod(){
        if(someCondition)
            inputField.SetActive(false);
    }
}

Set the GameObject in the inspector by drag drop, or use GameObject.Find in awake to set inputField

share|improve this answer
1  
Maybe add some code to show how it's done. – Lasse Sep 29 '16 at 15:53
    
I've added a small example. If you're still not clear, I'd be glad to help you out with any other questions you may have – Shraa1 Sep 29 '16 at 18:09
    
It doesn't work, don't know why... I thought about an idea to prove: If I press the O key on the keyboard it disappears, and if I press again it appears; and so on. – Pichi Wuana Oct 3 '16 at 10:18
    
See my edit, thanks! – Pichi Wuana Oct 3 '16 at 10:25
1  
It worked! Thanks! – Pichi Wuana Oct 9 '16 at 12:59
up vote 2 down vote

You can create a public GameObject variable and then disable/enable it accordingly:

public GameObject field; //  On Editor drag the inputfield GameObject here 
...

...
if (*condition*) {
    field.SetActive(true);
} else {
    field.SetActive(false);
}

For the second question you made: Change the GameObject inputField = GameObject.Find("InputField");It should not be on the update. See this solution:

bool shown = true;
GameObject inputField;
// Use this for initialization
void Start () {
    inputField  = GameObject.Find("InputField");
}

// Update is called once per frame
void Update () {
    if (Input.GetKeyDown (KeyCode.O)) {
        shown = !shown;
        inputField.SetActive (shown);
    }
}

You can also use ,as I said in the first place, a public GameObject. Then on the unity editor you can drag the InputField GameObject to the Variable.

share|improve this answer
    
You can also navigate the Transform hierarchy to locate the relevant object (for staticly-built UIs this is not recommended). – Draco18s Sep 29 '16 at 18:17
    
See my edit, thanks! – Pichi Wuana Oct 3 '16 at 10:25
    
Very simple! You have to change the: GameObject inputField = GameObject.Find("InputField"); from the Update to the Start. See the answer – Trigueiro Oct 3 '16 at 19:07

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