ios - UITableViewCell 高度在每次旋转变化时增加 2 个像素

标签 ios ios4 uitableview

我有一个 UIViewController 和一个 UITableView socket ，我正在填充单元格(设置为 ivar socket )，这些单元格在与 TableView Controller 相同的 nib 文件中定义。当我使用旋转功能时，每次我旋转到新的方向时，第一个单元格都会增长 2 个像素。

这是控制台的输出。我在类的每个方法中都调用了一个 METHOD_LOG 调用，这样我就可以查看代码是否运行到了意想不到的地方，但它似乎并没有...

2011-06-08 10:10:42.050 MyApp[10927:207] METHOD_LOG: viewDidLoad /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.054 MyApp[10927:207] METHOD_LOG: viewWillAppear: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.054 MyApp[10927:207] METHOD_LOG: shouldAutorotateToInterfaceOrientation: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.056 MyApp[10927:207] METHOD_LOG: numberOfSectionsInTableView: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.056 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.056 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.057 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.057 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.058 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.058 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.059 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.059 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.060 MyApp[10927:207] item name cell height: 44.000000
2011-06-08 10:10:42.060 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.060 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.061 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.061 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.062 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.062 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.062 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.063 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.063 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.064 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.064 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.065 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.065 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.065 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.066 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.066 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.067 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.067 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.068 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.068 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.068 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.069 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.069 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.070 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.070 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.071 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.071 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.071 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.072 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.072 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.073 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.073 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.074 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.074 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.074 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.075 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.075 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.076 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.076 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.077 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.077 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.077 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.078 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.078 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.079 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.079 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.080 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.080 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.080 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.081 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.081 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.082 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.082 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.082 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.083 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.083 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.084 MyApp[10927:207] METHOD_LOG: tableView:cellForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.085 MyApp[10927:207] METHOD_LOG: tableView:cellForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.086 MyApp[10927:207] METHOD_LOG: tableView:cellForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.087 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.088 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:42.088 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.619 MyApp[10927:207] METHOD_LOG: shouldAutorotateToInterfaceOrientation: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.622 MyApp[10927:207] METHOD_LOG: numberOfSectionsInTableView: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.623 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.623 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.624 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.624 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.625 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.625 MyApp[10927:207] METHOD_LOG: tableView:titleForHeaderInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.625 MyApp[10927:207] METHOD_LOG: tableView:numberOfRowsInSection: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.626 MyApp[10927:207] METHOD_LOG: tableView:heightForRowAtIndexPath: /Users/me/path/to/the/source/code/ItemDetailViewController.m
2011-06-08 10:10:49.626 MyApp[10927:207] item name cell height: 46.000000

如您所见，加载 View 后，唯一被调用的方法是 shouldAutorotateToInterfaceOrientation 和 TableView 委托(delegate)方法。第一次看到单元格高度时，它是 Interface Builder 中定义的默认值，但第二次，它不知何故大了两个像素。这些方法中没有任何代码会修改任何对象的边界或框架。

任何人对可能发生的事情或如何诊断问题有任何想法？我想过设置一个 KVO，但我认为我无法用它来获取单元格的框架。

编辑:这是返回特定索引路径处行的高度的代码:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    METHOD_LOG;

    int idx = [indexPath section];

    if (idx == SECTION_ITEM)
    {
        NSLog(@"item name cell height: %f", itemNameCell.frame.size.height);
        return itemNameCell.frame.size.height;
    }
    else if (idx == SECTION_DESCRIPTION)
    {
        return itemDescriptionCell.frame.size.height;
    }
    ...
    ... other section identifiers here, you get the idea
    ...

    return 44.0;
}

编辑 2:这是创建和返回单元格的代码:

- (UITableViewCell *)tableView:(UITableView *)tv cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    METHOD_LOG;

    UITableViewCell *cell;

    int idx = [indexPath section];

    if (idx == SECTION_ITEM)
    {
        cell = itemNameCell;
        UILabel *label = (UILabel *)[cell viewWithTag:1];
        label.text = [[jobItem jItemRef] blankIfNULL];
    }
    else if (idx == SECTION_DESCRIPTION)
    {
        cell = itemDescriptionCell;
        UITextView *textView = (UITextView *)[cell viewWithTag:1];
        textView.text = [[jobItem jItemDesc] blankIfNULL];
    }
    ...
    ... again, you get the idea
    ...

    return cell;
}

最佳答案

尝试在第一次需要时将 itemNameCell 的高度保存到您的方法中的静态 CGFloat，然后从那时起就使用它。我猜这只是 UI 中的一些自动调整大小，随着您的旋转而叠加。

这假定您不会想要以编程方式更改单元格的高度(因为您是在 IB 中设置它)。

关于ios - UITableViewCell 高度在每次旋转变化时增加 2 个像素，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/6280509/

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