private float Fill(FlexibleView.Recycler recycler, LayoutState layoutState, bool stopOnFocusable, bool immediate)
{
float start = layoutState.Available;
if (layoutState.ScrollingOffset != LayoutState.SCROLLING_OFFSET_NaN)
{
// TODO ugly bug fix. should not happen
if (layoutState.Available < 0)
{
layoutState.ScrollingOffset += layoutState.Available;
}
if (immediate == true)
{
RecycleByLayoutState(recycler, layoutState, true);
}
}
float remainingSpace = layoutState.Available + layoutState.Extra;
LayoutChunkResult layoutChunkResult = mLayoutChunkResult;
while ((remainingSpace > 0) && layoutState.HasMore(ItemCount))
{
layoutChunkResult.ResetInternal();
LayoutChunk(recycler, layoutState, layoutChunkResult);
if (layoutChunkResult.Finished)
{
break;
}
layoutState.Offset += layoutChunkResult.Consumed * layoutState.LayoutDirection;
// Consume the available space if:
// layoutChunk did not request to be ignored
// OR we are laying out scrap children
// OR we are not doing pre-layout
if (!layoutChunkResult.IgnoreConsumed)
{
layoutState.Available -= layoutChunkResult.Consumed;
// we keep a separate remaining space because mAvailable is important for recycling
remainingSpace -= layoutChunkResult.Consumed;
}
if (layoutState.ScrollingOffset != LayoutState.SCROLLING_OFFSET_NaN)
{
layoutState.ScrollingOffset += layoutChunkResult.Consumed;
if (layoutState.Available < 0)
{
layoutState.ScrollingOffset += layoutState.Available;
}
if (immediate == true)
{
RecycleByLayoutState(recycler, layoutState, true);
}
}
if (stopOnFocusable && layoutChunkResult.Focusable)
{
break;
}
}
if (immediate == false)
{
RecycleByLayoutState(recycler, layoutState, false);
}
return(start - layoutState.Available);
}
