//UICollectionView will discard any visible items and then redisplay them
public virtual void ReloadData()
{
StopAllCoroutines();
x = 0;
y = 0;
#if SPAWN_POOL
if (usePool && _spawnPool != null)
{
foreach (var child in _childList)
{
_spawnPool.Despawn(child.transform, _spawnPool.transform);
}
}
else
{
foreach (var child in _childList)
{
GameObject.Destroy(child);
}
}
#else
foreach (var child in _childList)
{
child.transform.parent = null;
GameObject.Destroy(child);
}
#endif
_childList.Clear();
if (Source != null)
{
int itemCount = Source.GetItemsCount(this, 0);
if (itemCount > 0)
{
IndexPath[] indexPaths = new IndexPath[itemCount];
for (int i = 0; i < indexPaths.Length; ++i)
{
indexPaths[i] = new IndexPath()
{
Index = i, Row = i
};
}
Busy = true;
Progress = 0.0f;
InsertItems(indexPaths);
}
}
}
public virtual GameObject DequeueReusableCell(string reuseIdentifier, IndexPath indexPath)
{
if (reuseIdentifier != null)
{
this.Template = Templates[reuseIdentifier];
}
//Debug.Log( "DequeueReusableCell " + reuseIdentifier + "," + indexPath );
GameObject parent = Grid != null ? Grid.gameObject : this.gameObject;
GameObject cell = null;
#if !MVX_DBG
//if (_childList.Count > indexPath.Index && _childList[indexPath.Index] != null)
//{
// cell = _childList[indexPath.Index] as GameObject;
//}
#endif
if (cell == null)
{
#if SPAWN_POOL
if (usePool && _spawnPool != null)
{
cell = _spawnPool.Spawn(this.Template.name).gameObject;
}
else
#endif
cell = GameObject.Instantiate(this.Template) as GameObject;
_childList.Add(cell);
if (cell != null && parent != null)
{
Transform t = cell.transform;
t.parent = parent.transform;
t.localPosition = Vector3.zero;
t.localRotation = Quaternion.identity;
t.localScale = Vector3.one;
}
}
return(cell);
}
public virtual void DeleteItems(IndexPath[] indexPaths)
{
if (Busy)
{
string errorMessage = "Async loading not finished yet";
if (Debug.isDebugBuild)
{
throw new InvalidOperationException(errorMessage);
}
else
{
Mvx.Error(errorMessage);
return;
}
}
for (int i = 0; i < indexPaths.Length; ++i)
{
if (AllowSelection)
{
if (_childList[indexPaths[i].Index] != null)
{
UIEventListener.Get(_childList[indexPaths[i].Index]).onClick -= ItemSelected;
}
}
#if SPAWN_POOL
if ( usePool && _spawnPool != null )
_spawnPool.Despawn(_childList[indexPaths[i].Index].transform, _spawnPool.transform);
else
#endif
_childList[indexPaths[i].Index].transform.parent = null;
GameObject.Destroy(_childList[indexPaths[i].Index]);
_childList.RemoveRange(indexPaths[i].Index, 1);
}
if ( Grid != null )
{
Grid.Reposition();
}
}
public virtual void ItemSelected(UICollectionView collectionView, IndexPath indexPath)
{
// nothing to do in this base class
}
public virtual void SelectItem(IndexPath indexPath, bool animated, Vector2 scrollPosition)
{
throw new NotImplementedException();
}
public virtual void MoveItem(IndexPath indexPath, IndexPath newIndexPath)
{
throw new NotImplementedException();
}
public virtual GameObject GetCell(UICollectionView collectionView, IndexPath indexPath)
{
return(new GameObject());
}
public virtual void SelectItem(IndexPath indexPath, bool animated, Vector2 scrollPosition)
{
throw new NotImplementedException();
}
protected abstract object GetItemAt(IndexPath indexPath);
protected virtual GameObject GetOrCreateCellFor(UICollectionView collectionView, IndexPath indexPath,
object item)
{
return (GameObject)collectionView.DequeueReusableCell(DefaultCellIdentifier, indexPath);
}
public virtual void DeleteItems(IndexPath[] indexPaths)
{
_collectionView.DeleteItems(indexPaths);
}
public virtual void InsertItems(IndexPath[] indexPaths)
{
if ( !_collectionView.Busy )
{
_collectionView.Progress = 0.0f;
_collectionView.InsertItems(indexPaths);
}
}
public override GameObject GetCell(UICollectionView collectionView, IndexPath indexPath)
{
if ( collectionView == null ) return null;
var item = GetItemAt(indexPath);
var cell = GetOrCreateCellFor(collectionView, indexPath, item);
var bindable = cell.GetComponent(typeof(IMvxDataConsumer)) as IMvxDataConsumer;
if (bindable != null)
{
bindable.DataContext = item;
}
return cell;
}
protected override object GetItemAt(IndexPath indexPath)
{
if (ItemsSource == null)
return null;
#if MVX_DBG
UnityEngine.Debug.LogError("MvxCollection view getting element!!!:" + indexPath.Index + ":" + indexPath.Row);
UnityEngine.Debug.LogError("Item source type:"+ItemsSource);
#endif
return ItemsSource.ElementAt(indexPath.Row);
}
private void CollectionChangedOnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
//Debug.Log( "OnCollectionChanged " + e.Action );
switch (e.Action)
{
case NotifyCollectionChangedAction.Reset:
Mvx.TaggedTrace(GetType().Name, "CollectionChangedOnCollectionChanged(Reset)");
ReloadData();
break;
case NotifyCollectionChangedAction.Add:
{
Mvx.TaggedTrace(GetType().Name, "CollectionChangedOnCollectionChanged(Add)");
int startingIndex = e.NewStartingIndex;
int count = e.NewItems.Count;
IndexPath[] indexPaths = new IndexPath[count];
for (int i = 0, k = startingIndex; i < count; ++i, ++k)
{
indexPaths[i] = new IndexPath() { Index = k, Row = k };
}
InsertItems(indexPaths);
break;
}
case NotifyCollectionChangedAction.Remove:
{
Mvx.TaggedTrace(GetType().Name, "CollectionChangedOnCollectionChanged(Remove)");
int startingIndex = e.OldStartingIndex;
int count = e.OldItems.Count;
IndexPath[] indexPaths = new IndexPath[count];
for (int i = 0, k = startingIndex; i < count; ++i, ++k)
{
indexPaths[i] = new IndexPath() { Index = k, Row = k };
}
DeleteItems(indexPaths);
break;
}
case NotifyCollectionChangedAction.Replace:
{
throw new NotSupportedException("Replace is not supported");
//int startingIndex = e.NewStartingIndex;
//int count = e.NewItems.Count;
//for (int i = 0, k = startingIndex; i < count; ++i, ++k)
//{
// GameObject.Destroy(_childList[k]);
// var cell = GetOrCreateCellFor(_collectionView, "", e.NewItems[i]);
// _childList[k] = cell;
//}
//RenameCell(startingIndex, startingIndex + count);
//Reposition();
//break;
}
case NotifyCollectionChangedAction.Move:
{
throw new NotSupportedException("Move is not supported");
//int newStartingIndex = e.NewStartingIndex;
//int oldStartingIndex = e.OldStartingIndex;
//int count = e.OldItems.Count;
//var children = _childList.GetRange(oldStartingIndex, count);
//_childList.RemoveRange(oldStartingIndex, count);
//_childList.InsertRange(newStartingIndex, children);
//RenameCell(Math.Min(oldStartingIndex, newStartingIndex), Math.Max(oldStartingIndex, newStartingIndex) + count);
//Reposition();
//break;
}
}
}
public virtual void MoveItem(IndexPath indexPath, IndexPath newIndexPath)
{
throw new NotImplementedException();
}
public virtual GameObject CellForItem(IndexPath indexPath)
{
return _childList.ElementAt(indexPath.Index) as GameObject;
}
public override void ItemSelected(UICollectionView collectionView, IndexPath indexPath)
{
var item = GetItemAt(indexPath);
var command = SelectionChangedCommand;
if (command != null)
command.Execute(item);
SelectedItem = item;
}
public virtual void DeselectItem(IndexPath indexPath, bool animated)
{
throw new NotImplementedException();
}
//UICollectionView will discard any visible items and then redisplay them
public virtual void ReloadData()
{
StopAllCoroutines();
x = 0;
y = 0;
#if SPAWN_POOL
if ( usePool && _spawnPool != null )
{
foreach (var child in _childList)
{
_spawnPool.Despawn(child.transform, _spawnPool.transform);
}
}
else
{
foreach (var child in _childList)
{
GameObject.Destroy(child);
}
}
#else
foreach (var child in _childList)
{
child.transform.parent = null;
GameObject.Destroy(child);
}
#endif
_childList.Clear();
if (Source != null)
{
int itemCount = Source.GetItemsCount(this, 0);
if (itemCount > 0)
{
IndexPath[] indexPaths = new IndexPath[itemCount];
for (int i = 0; i < indexPaths.Length; ++i)
{
indexPaths[i] = new IndexPath() { Index = i, Row = i };
}
Busy = true;
Progress = 0.0f;
InsertItems(indexPaths);
}
}
}
public virtual void ItemSelected(UICollectionView collectionView, IndexPath indexPath)
{
// nothing to do in this base class
}
public void InsertItems(IndexPath[] indexPaths)
{
var iter = GetInsertItemsEnumerator(indexPaths);
if ( AsyncLoad )
{
StartCoroutine(iter);
}
else
{
while ( iter.MoveNext() ) ;
}
}
//If the specified elements are visible, the UICollectionView will discard and then redisplay them.
public virtual void ReloadItems(IndexPath[] indexPaths)
{
throw new NotImplementedException();
}
public virtual GameObject DequeueReusableCell(string reuseIdentifier, IndexPath indexPath)
{
if (reuseIdentifier != null)
{
this.Template = Templates[reuseIdentifier];
}
//Debug.Log( "DequeueReusableCell " + reuseIdentifier + "," + indexPath );
GameObject parent = Grid != null ? Grid.gameObject : this.gameObject;
GameObject cell = null;
#if !MVX_DBG
//if (_childList.Count > indexPath.Index && _childList[indexPath.Index] != null)
//{
// cell = _childList[indexPath.Index] as GameObject;
//}
#endif
if (cell == null)
{
#if SPAWN_POOL
if ( usePool && _spawnPool != null )
cell = _spawnPool.Spawn(this.Template.name).gameObject;
else
#endif
cell = GameObject.Instantiate(this.Template) as GameObject;
_childList.Add(cell);
if (cell != null && parent != null)
{
Transform t = cell.transform;
t.parent = parent.transform;
t.localPosition = Vector3.zero;
t.localRotation = Quaternion.identity;
t.localScale = Vector3.one;
}
}
return cell;
}
public virtual GameObject CellForItem(IndexPath indexPath)
{
return(_childList.ElementAt(indexPath.Index) as GameObject);
}
protected virtual IEnumerator GetInsertItemsEnumerator(IndexPath[] indexPaths)
{
for (int i = 0; i < indexPaths.Length; ++i)
{
// Debug.Log( string.Format("{0}%{1}={2},{0}/{1}={3}", i, AsyncPageSize, i % AsyncPageSize, i / AsyncPageSize ));
if (!AsyncPaging || (AsyncPaging && ( i % AsyncPageSize == 0 && i / AsyncPageSize > 0 )) )
{
// yield return new ContinueAfterSeconds(1f);
// yield return new WaitForEndOfFrame();
// yield return new WaitForSeconds(1f);
yield return null; //Wait one Frame
}
GameObject cell = Source.GetCell(this, indexPaths[i]);
if (cell != null)
{
Reposition(cell);
cell.name = string.Format("{0:000}", indexPaths[i].Index);
Progress = (float)i / (float)(indexPaths.Length - 1);
if (Progressed != null)
{
Progressed(this, new MvxValueEventArgs<GameObject>(cell));
}
if (AllowSelection)
{
UIEventListener.Get(cell).onClick += ItemSelected;
}
}
}
Progress = 1f;
Busy = false;
if (Completed != null)
{
Completed(this, EventArgs.Empty);
}
}
public virtual void DeselectItem(IndexPath indexPath, bool animated)
{
throw new NotImplementedException();
}
public virtual GameObject GetCell(UICollectionView collectionView, IndexPath indexPath)
{
return new GameObject();
}