使用下面的代码片段避免不必要的填充问题UITableView在IOS 8和7。

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

    if ([tableView respondsToSelector:@selector(setSeparatorInset:)])
    {
        [tableView setSeparatorInset:UIEdgeInsetsZero];
    }

    if ([tableView respondsToSelector:@selector(setLayoutMargins:)])
    {
        [tableView setLayoutMargins:UIEdgeInsetsZero];
    }

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

大多数答案是显示分隔符插入和布局边距设置在各种方法(即viewDidLayoutSubviews, willDisplayCell等)的单元格和表视图，但我发现，只是把这些cellForRowAtIndexPath工作得很好。似乎是最干净的方法。

// kill insets for iOS 8
if ([[UIDevice currentDevice].systemVersion floatValue] >= 8) {
    cell.preservesSuperviewLayoutMargins = NO;
    [cell setLayoutMargins:UIEdgeInsetsZero];
}
// iOS 7 and later
if ([cell respondsToSelector:@selector(setSeparatorInset:)])
    [cell setSeparatorInset:UIEdgeInsetsZero];

使用下面的代码片段避免不必要的填充问题UITableView在IOS 8和7。

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

    if ([tableView respondsToSelector:@selector(setSeparatorInset:)])
    {
        [tableView setSeparatorInset:UIEdgeInsetsZero];
    }

    if ([tableView respondsToSelector:@selector(setLayoutMargins:)])
    {
        [tableView setLayoutMargins:UIEdgeInsetsZero];
    }

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

Arg ! !在你的Cell子类中做这些事情后:

- (UIEdgeInsets)layoutMargins
{
    return UIEdgeInsetsZero;
}

或者设置单元格。layoutmargin = UIEdgeInsetsZero;帮我修好了。

以一种比大多数人投票的答案更紧凑的方式……

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

    if ([cell respondsToSelector:@selector(setSeparatorInset:)] && [cell respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)] && [cell respondsToSelector:@selector(setLayoutMargins:)]) {
         [cell setSeparatorInset:UIEdgeInsetsZero];
         [cell setPreservesSuperviewLayoutMargins:NO];
         [cell setLayoutMargins:UIEdgeInsetsZero];
    }

}

在3楼看到答案后，我试图弄清楚设置TableView和TableViewCell之间的分隔符是什么关系，并做了一些测试。以下是我的结论:

we can consider that setting the cell's separator to zero has to move the separator in two steps: first step is to set cell's separatorinset to zero. second step is to set cell's marginlayout to zero. set the TableView's separatorinset and marginlayout can affect the Cell's separatorinset. However, from the test, I find that the TableView's separatorinset seem to be useless, TableView's marginlayout can actually affect cell's marginlayout. set Cell's PreservesSuperviewLayoutMargins = false, can cut off TableView's marginlayout effect on Cells. one of the solutions: func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { var cell = UITableViewCell() cell.preservesSuperviewLayoutMargins = false cell.separatorInset = UIEdgeInsetsZero cell.layoutMargins = UIEdgeInsetsZero return cell }