如果直接指定cell.backgroundColor = = [UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:0.8];在ios7下改变cell高度时cell背景会闪
通过以下方法可避免此问题,将cell对背景色clear,cell的contentView的背景色置为半透明
cell.backgroundColor = [UIColor clearColor];
cell.contentView.backgroundColor = [UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:0.8];
UITableView cell 半透明效果,改变cell高度时背景不闪的解决方法
原文:http://www.cnblogs.com/yibinpan/p/4366484.html