iOS开发之----去除tableViewCell分割线的左边间隙，将分割线填满

-(void)viewDidLayoutSubviews
{
    if ([self.tableView respondsToSelector:@selector(setSeparatorInset:)])
    {
        [self.tableView setSeparatorInset:UIEdgeInsetsMake(0,0,0,0)];
    }
    
    if ([self.tableView respondsToSelector:@selector(setLayoutMargins:)])
    {
        [self.tableView setLayoutMargins:UIEdgeInsetsMake(0,0,0,0)];
    }
}

-(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];
    }
}

1、在- (void)viewDidLoad方法中调用

    [self setUpCellSeparatorInset];

2、在当前控制器中，实现以下两个方法：

// 设置cell的分割线左边间距为0

- (void)setUpCellSeparatorInset

{

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

        [self.tableView setSeparatorInset:UIEdgeInsetsZero];

    }

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

        [self.tableView setLayoutMargins:UIEdgeInsetsZero];

    }

}

- (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];

    }

}