UITableView实用技巧

1.去除多余的空白单元格，当UITableView的单元格较少，UITableView空白处会出现多余的单元格:
<pre><code>
self.tableView.tableFooterView=[[UIView alloc]initWithFrame:CGRectZero];</code></pre>
2.UITableViewCell设置选中状态时的视图:
<pre><code>UIImageView *checkView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 1, 27, 27)]; checkView.image = [UIImage imageNamed:@"FlyElephant"]; cell.accessoryView = checkView;</code></pre>
3.单元格选中无选中色:
<pre><code>cell.selectionStyle = UITableViewCellSelectionStyleNone;</code></pre>
4.设置分割线位置:
<pre><code>`-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
// Remove seperator inset
if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
[cell setSeparatorInset:UIEdgeInsetsZero];
}

// Prevent the cell from inheriting the Table View's margin settings
if ([cell respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]) {
    [cell setPreservesSuperviewLayoutMargins:NO];
}

// Explictly set your cell's layout margins
if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
    [cell setLayoutMargins:UIEdgeInsetsZero];
}

}`</code></pre>

5.UITableView中设置tableFooterView之后，最后一行的分割线会被隐藏，可以通过下面的方法设置:
<pre><code>- (void)layoutSubviews { [super layoutSubviews]; for (UIView *subview in self.contentView.superview.subviews) { NSString *subCls=NSStringFromClass(subview.class); if ([subCls hasSuffix:@"SeparatorView"]) { subview.hidden = NO; } } }</code></pre>