UIPickerView 与新的 UITableViewController
您认为让用户从包含未知但数量较少 (5-20) 的项目的列表中选择项目的更好方法是什么？
我应该在当前屏幕上使用 UIPickerView，还是应该推送新的 UITableViewController 并使用复选标记来指示所选项目（做出选择时自动弹出控制器）？
IMO 第二种选择更好，因为：
（1）您可以同时看到更多选项。
(2) 选择一个项目可以更快——只需触摸屏幕，很多情况下不需要滚动。
(3) UIPickerViews 倾向于（至少对我来说）滚动超过我想要的，这会导致令人沮丧的来回运动:-)
但我仍然看到更多 UIPickerView 的实现。
What do you think is a better method for letting a user choose an item from a list with an unknown but rather small (5-20) number of items?
Should I use a UIPickerView on the current screen, or should I push a new UITableViewController and use a Checkmark to indicate the selected item (popping the controller back automatically when a selection is made)?
IMO the second alternative is better because:
(1) You get a glance of more options at the same time.
(2) Picking an item can be faster - just touching the screen, no need to scroll in many cases.
(3) UIPickerViews tend (at least for me) to scroll more than I want, which causes a frustrating back-and-forth movement :-)
But still I see many more implementations of UIPickerView.
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表有一个缺陷：正如您所说，您需要将视图控制器推送到屏幕上。因此，您正在引导用户离开其当前的数据集。因此，除了带有选项的列表之外，用户看不到任何内容。
所以，我想说，如果屏幕上有不止一组数据（例如，在表单中），选择器是一个更好的解决方案。让用户多次从表单导航可能会非常混乱。
如果您有大量选项并且仅呈现一次（或两次），那么 TableViewController 是一个更好的解决方案。
Table has one flaw: as you said, you need to PUSH the view controller onto the screen. So, you are navigating a user away from its current set of data. As a result, user cannot see anything except the list with options.
So, I would say picker is a better solution if you have more than one set of data on the screen (eg. in a form). Making user to navigate from the form more than once could be very confusing.
TableViewController is a better solution if you have a large set of options and if you are presenting it only once (or twice).
这确实取决于数据。如果它真的可以全部容纳在一个屏幕上或者如果您要添加搜索框，我同意该表格可以是一个更好的解决方案。我对不同的数据使用这两种方法。一些非常连续的东西，比如以 5 分钟为增量的持续时间，似乎使用拾取器效果更好，特别是如果它可以使用多个轮子。我也使用表格作为多选，并按照您的建议使用复选标记。
It really depends on the data. If it really can all fit on one screen or if you are adding a search box, I agree that the table can be a better solution. I use both methods for different data. Something that is very sequential, like a time duration with increments of 5 minutes, seems to do better with a picker, especially if it could use multiple wheels. I use tables as multi-selects as well, with check-marks as you suggest.