cell延迟显示，效果好像一个一个加上去的一样

一个定时器NSTimer 定时执行下面的代码

self.cellIndex=0;

self.timer= [NSTimerscheduledTimerWithTimeInterval:timeAftertarget:selfselector:@selector(addCell)userInfo:nilrepeats:YES];

#pragma mark ---动态添加cell---

- (void)addCell{

[self.dataArrayaddObject:self.dataArray1[self.cellIndex]];

NSIndexPath*indexPath = [NSIndexPathindexPathForRow:self.cellIndexinSection:0];

//插入

[self.tableViewinsertRowsAtIndexPaths:@[indexPath]withRowAnimation:UITableViewRowAnimationFade];

//滚动

[self.tableViewscrollToRowAtIndexPath:[NSIndexPathindexPathForRow:self.cellIndex

inSection:0]

atScrollPosition:UITableViewScrollPositionTop

animated:YES];

self.cellIndex++;

}