private void OnDragFinished()
{
var dragOffset = mPanel.clipOffset.x - panelStartOffset;
//拖动方向
mFinisedSvDragDir = dragOffset > 0 ? DragmoveDir.Left : dragOffset < 0 ? DragmoveDir.Right : DragmoveDir.None;
intFinishedSvDragDir = mFinisedSvDragDir == DragmoveDir.Left ? 1 : mFinisedSvDragDir == DragmoveDir.Right ? -1 : 0;
//Debug.LogError("Drag:" + mFinisedSvDragDir);
#region 跳转页下标,页位置计算
var pageNum = 0;
var goToNextPageDistance = pageColumnLimit * cellSize;
var offsetDistance = Mathf.Abs((int)(mPanel.clipOffset.x - panelStartOffset));
if (mMovement == UIScrollView.Movement.Horizontal)
{
pageNum = (offsetDistance / goToNextPageDistance) + 1;
pageNum = offsetDistance >= goToNextPageDistance + goToNextPageDistance / 2 ? pageNum - 1 : pageNum;
}
var dragDistance = Mathf.Abs(dragOffset);
int willGotoPageIndex;
if (dragDistance >= minDragMoveDistance)// 限制1：翻页的最短距离限制
{
if (mFinisedSvDragDir == DragmoveDir.Left)
{
willGotoPageIndex = curPageIndex + pageNum;
if (IsNeedFirstLastLimit && willGotoPageIndex >= pageTotalNum)//限制2：首尾翻页限制
{
Extensions.LogAttentionTip(string.Format("当前第{0}页，不支持左拖翻页到{1}", curPageIndex, willGotoPageIndex));
willGotoPageIndex = pageTotalNum - 1;
}
curPageIndex = willGotoPageIndex;
}
if (mFinisedSvDragDir == DragmoveDir.Right)
{
willGotoPageIndex = curPageIndex - pageNum;
if (IsNeedFirstLastLimit && willGotoPageIndex < 0) //限制2：首尾翻页限制
{
Extensions.LogAttentionTip(string.Format("当前第{0}页，不支持右拖翻页{1}", curPageIndex, willGotoPageIndex));
willGotoPageIndex = 0;
}
curPageIndex = willGotoPageIndex;
}
}
else
{
Extensions.LogAttentionTip(string.Format("拖动距离{0}太短，不足以翻页", dragDistance));
}
//Debug.LogError(curPageIndex);
var finalmoveTo = -1 * curPageIndex * pageColumnLimit * cellSize;
SpringPanel.Begin(mPanel.gameObject, new Vector3(finalmoveTo, 0, 0), 8f);
#endregion
//移动方向
mFinisedSvMoveDir = mPanel.transform.localPosition.x - finalmoveTo > 0 ? DragmoveDir.Left : mPanel.transform.localPosition.x - finalmoveTo < 0 ? DragmoveDir.Right : DragmoveDir.None;
intFinishedSvMoveDir = mFinisedSvMoveDir == DragmoveDir.Left ? 1 : mFinisedSvMoveDir == DragmoveDir.Right ? -1 : 0;
//Debug.LogError("Move:" + mFinisedSvMoveDir);
//Debug.LogError("Move int:" + intFinishedSvMoveDir);
//CheckMove();
}
/// <summary>
/// 检测并移动
/// </summary>
private void CheckCellMove()
{
int rowLimit = mMovement == UIScrollView.Movement.Vertical ? mPanelRowLimit + extraShowNum : mPanelRowLimit;
int lineLimit = mMovement == UIScrollView.Movement.Horizontal ? mPanelColumnLimit + extraShowNum : mPanelColumnLimit;
if (cellGoList.Count <= lineLimit)
{
return;
}
int curLastColIndex, curLastShowDateColIndex;
int cellIndex, moveColIndex, dataIndex = 0;
bool isCanMove = true;
float cellX = 0;
if (mMovement == UIScrollView.Movement.Horizontal)
{
curFirstColIndex = curFirstColIndex % lineLimit;
curLastColIndex = (curFirstColIndex + lineLimit - 1) % lineLimit;
curFirstShowDataColIndex = curFirstShowDataColIndex % mDataColumnLimit;
curLastShowDateColIndex = (curFirstShowDataColIndex + mPanelColumnLimit) % mDataColumnLimit;
int moveDir = mPanel.clipOffset.x - panelStartOffset > 0 ? 1 : mPanel.clipOffset.x - panelStartOffset < 0 ? -1 : 0;
DragmoveDir dragDir = moveDir == 1 ? DragmoveDir.Left : moveDir == -1 ? DragmoveDir.Right : DragmoveDir.None;
if (dragDir == DragmoveDir.None)
{
return;
}
//需要移动的列index
moveColIndex = dragDir == DragmoveDir.Left ? curFirstColIndex : dragDir == DragmoveDir.Right ? curLastColIndex : -1;
cellX = cellGoList[moveColIndex].transform.localPosition.x;
cellX = cellX - mPanel.clipOffset.x;
//左拖动 offset变大 cell右移 x增加
if (IsAllOutHoriPanel(cellX))
{
for (int hangIndex = 0; hangIndex < rowLimit; hangIndex++)
{
cellIndex = hangIndex * lineLimit + moveColIndex;
cellX = cellGoList[cellIndex].transform.localPosition.x + moveDir * lineLimit * cellSize;
if (dragDir == DragmoveDir.Left)
{
dataIndex = curLastShowDateColIndex + extraShowNum;
if (dataIndex >= mDataColumnLimit) //到尾限制
{
return;
}
}
else if (dragDir == DragmoveDir.Right)
{
dataIndex = curFirstShowDataColIndex - extraShowNum;
if (dataIndex < 0) //到头限制
{
return;
}
}
dataIndex = hangIndex * mDataColumnLimit + dataIndex;
onUpdateItem(cellGoList[cellIndex], dataIndex);
cellGoList[cellIndex].transform.SetLocalX(cellX);
}
if (dragDir == DragmoveDir.Left)
{
curFirstShowDataColIndex++;
curFirstColIndex++;
}
else if (dragDir == DragmoveDir.Right)
{
curFirstShowDataColIndex--;
curFirstColIndex = curLastColIndex;
}
}
}
if (mMovement == UIScrollView.Movement.Vertical)
{
//todo
}
}