UItableivew 分割线 从边框顶端开始

共两步：

第一步：

if ([self.meZanNewstableview respondsToSelector:@selector(setSeparatorInset:)]) {

[self.meZanNewstableview setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];

}

if ([self.meZanNewstableview respondsToSelector:@selector(setLayoutMargins:)]) {

[self.meZanNewstableview setLayoutMargins:UIEdgeInsetsMake(0,0,0,0)];

}

第二步：

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath

{

if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {

[cell setSeparatorInset:UIEdgeInsetsZero];

}

if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {

[cell setLayoutMargins:UIEdgeInsetsZero];

}

}