/// <summary>
/// Called internally in <see cref="SRIA{TParams, TItemViewsHolder}.Init()"/> and every time the scrollview's size changes.
/// This makes sure the content and viewport have valid values. It can also be overridden to initialize custom data
/// </summary>
public virtual void InitIfNeeded(ISRIA sria)
{
// Commented: null-coalescing operator doesn't work with unity's Object
//content = content ?? scrollRect.content;
if (!scrollRect)
{
scrollRect = sria.AsMonoBehaviour.GetComponent <ScrollRect>();
}
if (!scrollRect)
{
throw new UnityException("Can't find ScrollRect component!");
}
if (!viewport)
{
viewport = scrollRect.transform as RectTransform;
}
if (!content)
{
content = scrollRect.content;
}
if (!Snapper)
{
Snapper = scrollRect.GetComponent <Snapper8>();
}
}
internal void InitWithAdapter(ISRIA adapterImpl)
{
if (_AdapterImpl != null && !allowReinitializationWithOtherAdapter)
{
return;
}
_AdapterImpl = adapterImpl;
Button b;
transform.GetComponentAtPath("ComputeNowButton", out b);
b.onClick.RemoveAllListeners();
b.onClick.AddListener(() => Call("ComputeVisibilityForCurrentPosition", true, true, false));
transform.GetComponentAtPath("ComputeNowButton_PlusDelta", out b);
b.onClick.RemoveAllListeners();
b.onClick.AddListener(() => Call("ComputeVisibilityForCurrentPosition", true, true, false, .1f));
transform.GetComponentAtPath("ComputeNowButton_MinusDelta", out b);
b.onClick.RemoveAllListeners();
b.onClick.AddListener(() => Call("ComputeVisibilityForCurrentPosition", true, true, false, -.1f));
transform.GetComponentAtPath("CorrectNowButton", out b);
b.onClick.RemoveAllListeners();
b.onClick.AddListener(() => Call("CorrectPositionsOfVisibleItems", true));
}
/// <inheritdoc/>
public override void InitIfNeeded(ISRIA sria)
{
base.InitIfNeeded(sria);
_PrefabSize = -1f; // so the prefab's size will be recalculated
_DefaultItemSize = ItemPrefabSize;
}
/// <inheritdoc/>
public override void InitIfNeeded(ISRIA sria)
{
base.InitIfNeeded(sria);
if (Data == null) // this will only be null at init. When scrollview's size changes, the data should remain the same
{
Data = new LazyList <TData>(NewModelCreator, 0);
}
}
public void Init(
ISRIA adapter,
bool addGravityCommand = true,
bool addItemEdgeFreezeCommand = true,
bool addContentEdgeFreezeCommand = true,
bool addServerDelaySetting = true,
bool addOneItemAddRemovePanel = true
)
{
Init(new ISRIA[] { adapter }, addGravityCommand, addItemEdgeFreezeCommand, addContentEdgeFreezeCommand, addServerDelaySetting, addOneItemAddRemovePanel);
}
/// <inheritdoc/>
public override void InitIfNeeded(ISRIA sria)
{
base.InitIfNeeded(sria);
if (!cellPrefab)
{
throw new UnityException("SRIA: " + typeof(GridParams) + ": the prefab was not set. Please set it through inspector or in code");
}
if (numCellsPerGroup < 1)
{
throw new UnityException("SRIA: numCellsPerGroup = " + numCellsPerGroup);
}
_DefaultItemSize = scrollRect.horizontal ? cellPrefab.rect.width : cellPrefab.rect.height;
// Hotfix 12.10.2017 14:45: There's a bug in Unity on some versions: creating a new GameObject at runtime and adding it a RectTransform cannot be done in Awake() or OnEnabled().
// See: https://issuetracker.unity3d.com/issues/error-when-creating-a-recttransform-component-in-an-awake-call-of-an-instantiated-monobehaviour
// The bug was initially found in a project where the initial count is 0 (when Start() is called), then the scrollview is disabled, set a non-zero count, then enabled back,
// and in OnEnable() the user called ResetItems(), which triggered the lazy-instantiation of the group prefab - since it's created in the first GetGroupPrefab() call.
// Solved it by creating the prefab here, because InitIfNeeded(ISRIA) is called at Init time (in MonoBehaviour.Start())
CreateCellGroupPrefab();
}
