Messages

1

NGUI 3 Support / Re: scrollView: best practice to indicate whether scrollView at top/bottom now?

« on: October 16, 2014, 08:06:00 PM »

Thanks very much for your reply .

2

NGUI 3 Support / scrollView: best practice to indicate whether scrollView at top/bottom now?

« on: October 16, 2014, 03:38:16 AM »

Hi, everyone.
I have to made a upScrollable/downScrollable indicator sprite.
Each time scrollView dragged or gameObjects added/removed, below is desired:

bool upScrollable = ?
bool bottomScrollable = ?
upScrollableSprite.enabled = upScrollable
bottomScrollableSprite.enabled = bottomScrollable

The quesion is how to get upScrollable/bottomScrollable ?

I tried two ways, both have defects:
1. use UIScrollBar
bool upScrollable = scrollBar.value > threshold
but threshold may varies for gameObjects count.

2. calculate with scroll.panel/ scroll.bounds.size.y / scroll.panel.GetViewSize() things.
It works, but too complex.

   public void setGameObjects(IEnumerable<GameObject> gameObjects) {
      scroll.ResetPosition();
      // clear existed
      // set new
      grid.Reposition();
      scroll.ResetPosition();

      yWhenTop = scroll.panel.clipOffset.y;
      StartCoroutine("delayedUpdateButtonVisibility");
   }

   // scroll.bounds.size seems won't update until next frame
   IEnumerator delayedUpdateButtonVisibility() {
      yield return new WaitForEndOfFrame();
      updateButtonVisibility();
   }

   float yWhenTop;
   public void updateButtonVisibility() {
      Debug.Log("updateButtonVisibility()");
      if (scroll.bounds.size.y <= scroll.panel.GetViewSize().y) { // contents less than one screen
         buttonPrev.gameObject.SetActive(false);
         buttonNext.gameObject.SetActive(false);
      } else {
         float yWhenBottom = yWhenTop - (scroll.bounds.size.y - scroll.panel.GetViewSize().y);
         buttonPrev.gameObject.SetActive(scroll.panel.clipOffset.y < yWhenTop);
         buttonNext.gameObject.SetActive(scroll.panel.clipOffset.y > yWhenBottom);
      }
   }

So what would the best practice be to indicate whether scrollView at top/bottom now?

3

NGUI 3 Support / Re: UIButton inspector onClick not support function with basic type param?

« on: July 03, 2014, 03:19:52 AM »

Thanks for your answer.
Anticipate the coming of that feature

4

NGUI 3 Support / UIButton inspector onClick not support function with basic type param?

« on: July 01, 2014, 09:40:18 PM »

Suppose I have a Controller class to sort a datalist:

1. public enum SortType {t1,t2...t20}
2. public Class Controller {
3.     public void sort(SortType t);
4. }
5.  

then I have 20 buttons to call sort.
It would be convenient by using UIButton inspector to set callback function and param,
but when I select sort method, the appeared arg0 turn to type of Object.

So what would be the best practice to use UIButon for this case?

I know I could attach a script for each button, but it still need extra code:

1. class SortButton : Monobehavior {
2.     public SortType type;
3.     public Controller controller;
4.     void OnClick() {controller.sort(type)}
5. }
6.