//初始化item
void InitItem(int index)
{
if (loadItems[index] == null)
{
loadItems[index] = CreateItem();
}
if (loadWindow.Content[index] >= 0 && loadWindow.Content[index] < mAdapter.GetCount())
{
mAdapter.InitItem(loadItems[index], mAdapter.GetItem(loadWindow.Content[index]));
}
}
public Java.Lang.Object GetItem(int position)
{
int numHeadersAndPlaceholders = HeadersCount * mNumColumns;
if (position < numHeadersAndPlaceholders)
{
if (position % mNumColumns == 0)
{
return(mHeaderViewInfos[position / mNumColumns].data);
}
return(null);
}
int adjPosition = position - numHeadersAndPlaceholders;
int adapterCount = 0;
if (mAdapter != null)
{
adapterCount = mAdapter.Count;
if (adjPosition < adapterCount)
{
return(mAdapter.GetItem(adjPosition));
}
}
throw new System.IndexOutOfRangeException(position.ToString());
}
Java.Lang.Object IAdapter.GetItem (int position)
{
// Header (negative positions will throw an ArrayIndexOutOfBoundsException)
int numHeadersAndPlaceholders = getHeadersCount() * _numColumns;
if (position < numHeadersAndPlaceholders) {
if (position % _numColumns == 0) {
return (Java.Lang.Object)_headerViewInfos.ElementAt(position / _numColumns).data;
}
return null;
}
// Adapter
int adjPosition = position - numHeadersAndPlaceholders;
int adapterCount = 0;
if (mAdapter != null) {
adapterCount = getAdapterAndPlaceHolderCount();
if (adjPosition < adapterCount) {
if (adjPosition < mAdapter.Count) {
return mAdapter.GetItem(adjPosition);
} else {
return null;
}
}
}
// Footer (off-limits positions will throw an IndexOutOfBoundsException)
int footerPosition = adjPosition - adapterCount;
if (footerPosition % _numColumns == 0) {
return (Java.Lang.Object)_footerViewInfos.ElementAt(footerPosition).data;
} else {
return null;
}
}
public Java.Lang.Object GetItem(int position)
{
// Header (negative positions will throw an ArrayIndexOutOfBoundsException)
int numHeaders = HeadersCount;
if (position < numHeaders)
{
return(mHeaderViewInfos[position].Data);
}
// Adapter
int adjPosition = position - numHeaders;
int adapterCount = 0;
if (mAdapter != null)
{
adapterCount = mAdapter.Count;
if (adjPosition < adapterCount)
{
return(mAdapter.GetItem(adjPosition));
}
}
// Footer (off-limits positions will throw an ArrayIndexOutOfBoundsException)
return(mFooterViewInfos[adjPosition - adapterCount].Data);
}
public Java.Lang.Object GetItem(int position)
{
// Header (negative positions will throw an ArrayIndexOutOfBoundsException)
int numHeadersAndPlaceholders = HeadersCount * mNumColumns;
if (position < numHeadersAndPlaceholders)
{
if (position % mNumColumns == 0)
{
return(mHeaderViewInfos[position / mNumColumns].data);
}
return(null);
}
// Adapter
if (position < numHeadersAndPlaceholders + mAdapter.Count)
{
int adjPosition = position - numHeadersAndPlaceholders;
int adapterCount = 0;
if (mAdapter != null)
{
adapterCount = mAdapter.Count;
if (adjPosition < adapterCount)
{
return(mAdapter.GetItem(adjPosition));
}
}
}
int lastRowItemCount = (mAdapter.Count % mNumColumns);
int emptyItemCount = ((lastRowItemCount == 0) ? 0 : mNumColumns - lastRowItemCount);
if (position < numHeadersAndPlaceholders + mAdapter.Count + emptyItemCount)
{
return(null);
}
// Footer
int numFootersAndPlaceholders = FootersCount * mNumColumns;
if (position < numHeadersAndPlaceholders + mAdapter.Count + emptyItemCount + numFootersAndPlaceholders)
{
if (position % mNumColumns == 0)
{
return(mFooterViewInfos[(position - numHeadersAndPlaceholders - mAdapter.Count - emptyItemCount) / mNumColumns].data);
}
}
throw new System.IndexOutOfRangeException(position.ToString());
}
public Object GetItem(int position)
{
// Header (negative positions will throw an ArrayIndexOutOfBoundsException)
int numHeadersAndPlaceholders = GetHeadersCount() * _numColumns;
if (position < numHeadersAndPlaceholders)
{
if (position % _numColumns == 0)
{
return(_headerViewInfos[position / _numColumns].Data);
}
return(null);
}
// Adapter
int adjPosition = position - numHeadersAndPlaceholders;
int adapterCount = 0;
if (_adapter != null)
{
adapterCount = GetAdapterAndPlaceHolderCount();
if (adjPosition < adapterCount)
{
if (adjPosition < _adapter.Count)
{
return(_adapter.GetItem(adjPosition));
}
return(null);
}
}
// Footer (off-limits positions will throw an IndexOutOfBoundsException)
int footerPosition = adjPosition - adapterCount;
if (footerPosition % _numColumns == 0)
{
return(_footerViewInfos[footerPosition].Data);
}
return(null);
}
public override Java.Lang.Object GetItem(int position)
{
return(mAdapter.GetItem(position));
}
public Object GetItem(int position)
{
return(mAdapter.GetItem(position));
}
public override Java.Lang.Object GetItem(int position)
{
Java.Lang.Object item = _wrappedAdapter.GetItem(position);
return(item);
}