android - Unity: Best way to make interface in Unity

Question

For my Android game I need to make a pop up interface window, which should appear when a level is complete. What is the best way to do so?

UPDATE 2: It works! The final version I used:

Scripts

Hierarchy

The only thing left is setting Dialog game object active, when the win condition is true. It is done in my GameManager script. Thus, in each scene I have to manually drag Dialog object onto GameManager script's Dialog variable, so that it can alter Dialog object. I've tried to Get (find) the Dialog object in GameManager's Start() method, but it can't be done, because Dialog object is inactive by default. Is there a way to find and link an inactive game object though scripting?

question from:https://stackoverflow.com/questions/66051429/unity-best-way-to-make-interface-in-unity

Answer 1

As discussed in the comments, since the thing which you want to achieve is to create a reusable dialog with buttons which will trigger different functions from other classes which are part of the current Scene, the way you can achieve this is by using UnityAction. Let's say you have a Dialog script with a function OnButtonClickedAction :

public class Dialog : MonoBehaviour {

public static UnityAction OnButtonClickedAction;

    public void OnButtonClicked(){
        if (OnButtonClickedAction != null){
            OnButtonClickedAction.Invoke();
        }
    }
}

And in your Scene's where you want to show this dialog you should have a class which subscribes for those actions:

public class Script : MonoBehaviour {

    private void OnEnable() {
        Dialog.OnButtonClickedAction += CodeToRunOnButtonClick;
    }

    private void OnDisable(){
        Dialog.OnButtonClickedAction += CodeToRunOnButtonClick;
    }

    private void CodeToRunOnButtonClick(){
        // code
    }
}

And by doing this, your Dialog is reusable between different Scene's.

There is another way using Singleton pattern, by calling a function from a GameObject which doesn't get destroyed during changing Scene's. Let's say you have a GameManager class which doesn't get destroyed so you can call something like that from your Dialog script.

public class Dialog : MonoBehaviour {

    public void OnButtonClicked(){
        GameManager.Instance.CodeToRunOnButtonClick();
    }
}

I prefer the first version, but it's up to you.

Here is the hierarchy inside Unity Editor:

As you can see there is a Dialog object inside the Scene which has the Dialog script attached to it and on Button's onClick event, Dialog's OnButtonClicked method is assigned.

And by adding Script object to every scene where you want to show this Dialog/WinPopUp you can listen for that action like this:

If you have more than one button, you can easily extend the UnityAction to support adding let's say an id to every Button (buttonId) and pass it like that: