iPhone-如何将NSStepper控件添加到Interface Builder？

Question

I have searched for over 4 hours on the net, but every answer I view seems to assume that the user knows how to add controls to Interface Builder.

How does one add extra controls to IB? (Please assume that I know nothing - which is not too far from the mark!)

From my research to date, it seems that extra controls have to be programmed, but I cannot believe that we all have to re-invent the wheel! Surely it's possible to download a set of controls?

Thanks.

Answer 1

Interface Builder comes with a wide variety of controls that are accessible from the Library window (Tools ▸ Library, or ⇧⌘L) under the Objects tab. If you type NSStepper in the search field at the bottom, it should filter out only the stepper controls. (You're correct, you shouldn't have to re-invent the wheel for basic controls.)

However, while "NSStepper" produces 2 results when editing a Mac NIB/XIB file in Interface builder, when the open IB document is for iPhone, I get no search results for "NSStepper", even for "step". It's possible that NSStepper (or an equivalent stepper for Cocoa Touch) doesn't exist for iPhone. I'm not an iPhone programmer, but my guess is that a logical alternative would be a UISlider or UIPickerView . (These are links to Apple's docs. Google either class name for find suitable tutorials — I know howtomakeiphoneapps.com has some examples.)

Answer 2

刚刚发生在这个老问题上...现在有一个适用于iOS 5的步进控件。