public static void setListViewHeightBasedOnChildren(ListView listView)
{
IListAdapter listAdapter = listView.Adapter;
if (listAdapter == null)
{
// pre-condition
return;
}
int totalHeight = 0;
int desiredWidth = View.MeasureSpec.MakeMeasureSpec(listView.Width, View.MeasureSpec.AT_MOST);
for (int i = 0; i < listAdapter.GetCount(); i++)
{
View listItem = listAdapter.GetView(i, null, listView);
listItem.Measure(1000, 0);
totalHeight += listItem.MeasuredHeight;
}
ViewGroup.LayoutParams parameters = listView.GetLayoutParams();
parameters.Height = totalHeight + (listView.DividerHeight * (listAdapter.GetCount() - 1)) + 10;
listView.SetLayoutParams(parameters);
listView.RequestLayout();
}
private void LateUpdate()
{
if (mAdapter != null && ItemPre != null)
{
//适配器数据数量与界面网格数量的差值
int itemCountDiff = mAdapter.GetCount() - itemPointList.Count;
//如果数据个数有变化需要更新界面
if (itemCountDiff != 0)
{
OnItemCountChange(itemCountDiff);
AdjustItemsPosition();
}
//界面实际位置与最后一个位置的差值
int diffPosition = GetCurrentItemId() - currentPosition;
if (diffPosition != 0)
{
OnPositionChange(diffPosition);
currentPosition = GetCurrentItemId();
AdjustItemsPosition();
}
UpdateAllItem();
}
}
