Display a loading logo while the rest of the execution is working

Hello,

I would like to display a loading logo when the user click on a button (in my project : a image with a text as children component) while an 3D object is imported but for the moment the loading appears at the same time that the object appears, i don't know why because I display the image before the importation :

Code (CSharp):

1.  
2.     public void OnPointerClick(PointerEventData pointerEventData)
3.     {
4.         GameObject.Find(name).GetComponentInChildren<Image>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
5.         GameObject.Find(name).GetComponentInChildren<Text>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
6.        
7.         //importation of the object corresponding to the button clicked
8.         ImportFile importFile = GameObject.FindObjectOfType(typeof(ImportFile)) as ImportFile;
9.  
10.         // displays the loading logo
11.         importFile.loading.SetActive(true);
12.  
13.         Debug.Log(name + " lxd archive clicked!");
14.  
15.        ....
16.  
17.         importFile.ImportObject(name);
18.  
19.         GameObject.Find(name).GetComponentInChildren<Image>().color = Color.white;
20.         GameObject.Find(name).GetComponentInChildren<Text>().color = Color.black;
21.  
22.     }

Do you have any idea about how can I display the logo before the execution of the function " ImportObject()" ?

Thank you in advance ! ^-^

 

Without a pause, your code just keeps going. You should call a coroutine from your OnPointerClick and after turning on importFile, call a yield to wait or just a yield null to pause a frame. This will set it active, then pause and let it render before continuing on with the rest of your code.

 

Thank you for your response, I tried to modify my code like this :

Code (CSharp):

1. public void OnPointerClick(PointerEventData pointerEventData)
2.     {
3.         importFile = GameObject.FindObjectOfType(typeof(ImportFile)) as ImportFile;
4.  
5.         StartCoroutine(selectedEffects(name));      
6.  
7.         importFile.ImportObject(name);
8.  
9.     }
10.  
11.     IEnumerator selectedEffects(string name)
12.     {
13.         GameObject.Find(name).GetComponentInChildren<Image>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
14.         GameObject.Find(name).GetComponentInChildren<Text>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
15.  
16.         importFile.loading.SetActive(true);
17.  
18.         Debug.Log(name + " lxd archive clicked!");
19.  
20.         DisplayMenu displayMenu = GameObject.FindObjectOfType(typeof(DisplayMenu)) as DisplayMenu;
21.         displayMenu.ShowHideExamplesList();
22.  
23.         yield return new WaitForSeconds(3.0f);
24.  
25.     }

But it changes nothing unluckily... Maybe I misunderstood your advice or tutorials on coroutines...

 

When the wait call happens, the code returns to the original method and still doesn't render your importFile.Loading before calling the next line of code.

Try putting importFile.ImportObject(name); right after the yield within the coroutine. See if that helps.

 

So I modified my code again :

Code (CSharp):

1. public void OnPointerClick(PointerEventData pointerEventData)
2.     {
3.         importFile = GameObject.FindObjectOfType(typeof(ImportFile)) as ImportFile;
4.  
5.         StartCoroutine(selectedEffects(name));      
6.  
7.     }
8.  
9.     IEnumerator selectedEffects(string name)
10.     {
11.         GameObject.Find(name).GetComponentInChildren<Image>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
12.         GameObject.Find(name).GetComponentInChildren<Text>().color = new Color(0.8f, 0.4f, 0.1f, 1f);
13.  
14.         importFile.loading.SetActive(true);
15.  
16.         Debug.Log(name + " lxd archive clicked!");
17.  
18.         DisplayMenu displayMenu = GameObject.FindObjectOfType(typeof(DisplayMenu)) as DisplayMenu;
19.         displayMenu.ShowHideExamplesList();
20.  
21.         yield return new WaitForSeconds(2.0f);
22.  
23.         importFile.ImportObject(name);
24.  
25.     }

And now the logo is displayed but ImportObject is not executed anymore...

 

After the yield finishes, ImportObject will execute. Unless you are interrupting the coroutine in some way.

In which case, look for errors. Add Debug.Log statements in your code to see what is executing. I don't know what your ImportObject code looks like, but add those Debug.Log statements and see where it is executing to.