void ClearOldBuilder()
{
if (_viewBuilder != null)
{
_viewBuilder.OnRequireUpdateUI = null;
_viewBuilder.scrollViewPosition = _scrollView.ScrollPosition;
_viewBuilder.filterString = _filterString;
_viewBuilder.OnPrepareToHide();
}
_viewBuilder = null;
}
void SetupNewBuilder(ViewBuilder builder)
{
// Prevent input filter callback while we set its value
_isPreparingView = true;
_viewBuilder = builder;
_viewBuilder.OnRequireUpdateUI = OnUpdateView;
_viewBuilder.OnPrepareToShow();
// Update title
bool hasTitle = !string.IsNullOrEmpty(_viewBuilder.title);
_title.gameObject.SetActive(hasTitle);
if (hasTitle)
{
_title.text = _viewBuilder.title;
}
// Update filter string
_filterString = _viewBuilder.filterString;
_inputFilter.input = _filterString;
_filterGroup.SetActive(!hasTitle);
// Update buttons
_backButton.SetActive(_viewBuilder.level > 0);
_actionButton.SetActive(_viewBuilder.actionButtonCallback != null);
AssetConfig.SpriteInfo spriteInfo = _config.GetSpriteInfo(_viewBuilder.actionButtonIcon);
if (spriteInfo != null)
{
UnityEngine.UI.Image buttonImage = _actionButton.GetComponentInChildren <UnityEngine.UI.Image>();
buttonImage.sprite = spriteInfo.sprite;
buttonImage.color = spriteInfo.color;
}
// Rebuild the whole tree
_viewBuilder.Rebuild();
// Update scroll view
if (!_viewBuilder.saveScrollViewPosition)
{
_scrollView.MoveViewToTop();
}
else
{
_scrollView.ScrollPosition = _viewBuilder.scrollViewPosition;
}
_isPreparingView = false;
}
public void Show(ViewBuilder builder)
{
if (builder == null)
{
throw new System.Exception("View Builder is null");
}
base.Show();
if (!_isInitialized)
{
_isInitialized = true;
_scrollView.AddCellTemplates(_config.cellTemplates);
_scrollView.SetDelegate(this);
}
ClearOldBuilder();
SetupNewBuilder(builder);
}