How Do I Enable and Disable Text In Unity Ui? - unity3d

Hi I am trying to make some popup instructions I want to disable the text when the person presses a key how might I do that?

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI; // Namespace for Unity's UI system
public class EnableAndDisableText : MonoBehaviour {
[SerializeField] Text text; // Text that you want to disable
private void Update() // Called every frame
{
if (Input.GetKeyDown(KeyCode.E)) // If the 'E' key is pressed,
{
text.enabled = false; // Disable text
}
}
}

Maybe text.SetActive(false); could work?
or Destroy(text);?
I see the question is 3 months old but I hope this still helps;

Related

I'm trying to figure out how to change from one static variable to another in the inspector

new game dev here. I'm not sure if this is a stupid question but I will ask it anyway. I'm trying to figure out how to change from one variable to another in the inspector. I have a few static variables in an empty game object called currencyMaster. Sorry if my question is hard to understand.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
public class currencyDisplay : MonoBehaviour
{
private TextMeshProUGUI textMecH;
void Start()
{
textMecH = GetComponent<TextMeshProUGUI>();
}
// Update is called once per frame
void Update()
{
//i want to change moneyPlus since all the variables are in
//currencyMaster
textMecH.text = currencyMaster.moneyPlus.ToString("0.0");
}
}
By default, Unity only serializes public fields. In order to expose a private variable to the inspector, you need to mark it with the attribute SerializeField.
[SerializeField] private TextMeshProUGUI textMecH;

what reference should I put inside Button void OnClick() in unity

When I start to play , it can't jump to the next scene .It also pumps out many error ,one error repeats many times , Coroutine couldn't be started because the the game object 'FadeOut' is inactive!It made me confused since the rawimage is all black and must be inactive before the function onclick.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class ToLoading : MonoBehaviour
{
public Button toLoad;
public RawImage fadeOut;
public Text loading;
// Start is called before the first frame update
void Start() //need to SetActive(false); ? if I set it false already in unity
{
}
// Update is called once per frame
void Update()
{
ButtonClicked();
}
public void ButtonClicked() //
{
fadeOut.gameObject.SetActive(true);
loading.gameObject.SetActive(true);
StartCoroutine(ToNextScene());
}
//going to do: fade out> 2 secoonds > to next scene
private IEnumerator ToNextScene()
{
yield return new WaitForSeconds(2);
SceneManager.LoadScene("SceneForMovingAround");
}
}
My question is : Should I put this script ToLoading to the fadeout rawimage ,or create an empty gameobject then put the script to it .Also , how to solve the problem -fade out error.And last , will it a problem about the code of scene part ?all of your help is appreciated, thanks!
Your ButtonClicked() method is executed every frame, which causes the unwanted behaviour your describe.
Remove the entire Update() method with its body from your file and run your game again.
Add gameObject.SetActive(false); to your ButtonClicked() method to deactivate the button upon clicking.
If you have attached the ButtonClicked() method to the OnClick() event in the inspector as you show in your screenshot then it should work as you would expect.

Have slider value set both by script and in UI using slider handle

So I have a UI Slider on my Canvas. I am also changing the value of the slider (and therefore position of the handle) from a script. But now the slider cant be move in the UI on runtime anymore. Once I remove the line in my code, it works again. Is there any way to change the value both from the script and in the UI via mouse at runtime, i.e. stop unity from blocking it in the UI when changing it in the script?
#Immersive was absolutely right. The value was changed within Update() on every frame. Changed it so it only is changed when necessary.
Thanks a lot.
using UnityEngine;
using UnityEngine.UI;
public class SliderExample : MonoBehaviour
{
public Slider slider;
public Text displaySliderValue;
private float sliderValue;
private void Update()
{
displaySliderValue.text = sliderValue.ToString();
sliderValue = slider.value;
}
}

SyncVar not changing Bool on button press Unity 3d

This is my first networking project. I tried to follow some tutorials and this is what I'm running into: I'm trying to simply change a boolean when a button is clicked. The button is in one scene and the text object down here is in another scene. So i'm running the same network manager in two separate scenes. I realize this isn't conventional but it has to be this way for my project. All I'm looking for right now is for it to change the text, once I understand how that happened, I'm sure I can figure out the rest.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Networking;
public class textChanger : NetworkBehaviour
{
Text text;
[SyncVar]
bool change = false;
// Use this for initialization
void Start ()
{
text = gameObject.GetComponent<Text>();
}
// Update is called once per frame
void Update ()
{
if(change)
{
text.text = "it worked";
}
}
[Command]
public void CmdChangeText()
{
change = true;
}
}
If I set "change" to true with a keypress, the code operates exactly as it should, the text changes. But it's not working when i click the button from the other scene. I'm using Networking Hud and the two scenes are in fact connected. But the variable is not updating.
In the first picture, the "Text" gameObject is running the "Text Changer" script. And in the second picture, the button has the generic "Game Object" object running it too. You can see it referenced in the buttons onClick area that's calling the "CmdChangeText" method on the "Text Changer" script.
So in my head, everything looks like it should be working, but it's not. Can someone help?
From the Unity Documentation:
These variables will have their values sychronized from the server to clients
So if you try to set in on a client it won't work. It only can be done using a [Command] like you already did.
You should also check your console output. As far as I know In order to be able to call a Command method, the holding NetworkIdentity has to be set to LocalPlayerAuthority. I always had to put a special class for all commands on the Player object itself in order to make it work.
I know this is maybe not an answer but atleast a workaround:
Instead of waiting for the [SyncVar] you could just directly set the value using a [ClientRpc]:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Networking;
public class textChanger : NetworkBehaviour {
Text text;
private bool change = false;
// Use this for initialization
void Start () {
text = gameObject.GetComponent<Text>();
}
// Update is called once per frame
void Update () {
if(change)
{
text.text = "it worked";
}
}
[Command]
public void CmdChangeText()
{
// sets the value on the server
change = true;
RpcChangeText();
}
// This is executed on ALL clients
// SyncVar is no longer needed
[ClientRpc]
private void RpcChangeText()
{
change = true;
}
}

Cannot call IVirtualButtonEventHandler Vuforia 5.0.10

Im using Unity 4.7.0 and Vuforia 5.0.10, i cannot call the IVirtualButtonEventHandler.
using UnityEngine;
using System.Collections;
public class VBEventHandler : MonoBehaviour, IVirtualButtonEventHandler
{
}
I just came across this, hope you're still using Unity & Vuforia. You need to add using Vuforia to make the call.
using UnityEngine;
using System.Collections;
using Vuforia;
Register the Virtual Button:
To add a virtual button to an image target, add the VirtualButton element and its attributes to the ImageTarget element in the .xml file.
XML Attributes:
Name - a unique name for the button
Rectangle - defined by the four corners of the rectangle in the
target's coordinate space
Enabled - a boolean indicating whether the button should be enabled
by default
Sensitivity - HIGH, MEDIUM, LOW sensitivity to occlusion
After Registering Virtual Button Code is simple then:
using UnityEngine;
using System.Collections;
using Vuforia;
public class Custom_VirtualButton : MonoBehaviour, IVirtualButtonEventHandler
{
// Use this for initialization
void Start () {
// here it finds any VirtualButton Attached to the ImageTarget and register it's event handler and in the
//OnButtonPressed and OnButtonReleased methods you can handle different buttons Click state
//via "vb.VirtualButtonName" variable and do some really awesome stuff with it.
VirtualButtonBehaviour[] vbs = GetComponentsInChildren<VirtualButtonBehaviour>();
foreach (VirtualButtonBehaviour item in vbs)
{
item.RegisterEventHandler(this);
}
}
// Update is called once per frame
void Update () {
}
#region VirtualButton
public void OnButtonPressed(VirtualButtonAbstractBehaviour vb)
{
Debug.Log("Helllllloooooooooo");
}
public void OnButtonReleased(VirtualButtonAbstractBehaviour vb)
{
Debug.Log("Goooooodbyeeee");
}
#endregion //VirtualButton
}