Cell不用再自定义分割线,用系统方法解决自定义分割线

在控制器中

切记:不要设置下面语句

    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

//分割线inset
@property (nonatomic, assign) UIEdgeInsets insets;

//设置左右可以达到分割线不水平顶置
self.insets = UIEdgeInsetsMake(0, 0, 0, 0);


-(void)viewDidLayoutSubviews {
    if ([_tableView respondsToSelector:@selector(setSeparatorInset:)]) {
        [_tableView setSeparatorInset:self.insets];
    }
    if ([_tableView respondsToSelector:@selector(setLayoutMargins:)])  {
        [_tableView setLayoutMargins:self.insets];
    }
}

-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath*)indexPath{
    if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:self.insets];
    }
    if ([cell respondsToSelector:@selector(setSeparatorInset:)]){
        [cell setSeparatorInset:self.insets];
    }
}