当我昨天遇到同样的问题时，我关注了这个帖子。我遵循的步骤

For Xcode 5.1, I had to do some cleanup of iPhone storyboard like missing reuseIdentifiers of Table cells, provide story board id for every controller, remove unused scenes. Copy MainStoryboard_iPhone.storyboard to MainStoryboard_iPad.storyboard. Using vi editor - changed targetRuntime="iOS.CocoaTouch" to targetRuntime="iOS.CocoaTouch.iPad" Change the code in the MainStoryboard_iPad.storyboard from: <simulatedScreenMetrics key="destination" type="retina4"/> to <simulatedScreenMetrics key="destination"/> Open the project in Xcode. Changed the Deployment devices to Universal - Chose the option of NOT copying the iPhone Storyboard. Xcode will default the Deployment Target to 7.1, took care of the deprecated functions. To fix the misplaced view error in iPad Storyboard - Changed the Frame Layout for Controllers giving errors.

就是这样。谢谢你的帮助。

最简单和最可靠的方法是从你的iPad故事板复制粘贴。

创建一个新的故事板，并将其命名为MainStoryboard_ipad。 通过在你的项目的目标属性的Summary页上将Devices属性设置为Universal，使你的应用程序成为Universal应用程序。 打开你的iPhone故事板，选择全部并复制 打开你的iPad故事板并粘贴。

你将不得不调整大小，但这可能比重新创建整个故事板更快。

对于 Xcode10

复制Main.storyboard 然后将文件重新命名为Main_iPad。storyboard和main_iphone。storyboard 在.plist中设置适当的名称

4.只需选择适当的.storyboard进行配置

我找到了一种解决方案:

Duplicate your iPhone-Storyboard and rename it MainStoryboard_iPad.storyboard Close Xcode and then open this file any text editor. Search for targetRuntime="iOS.CocoaTouch"and change it to targetRuntime="iOS.CocoaTouch.iPad" Change the code in the MainStoryboard_iPad.storyboard from: <simulatedScreenMetrics key="destination" type="retina4"/> to <simulatedScreenMetrics key="destination"/> Now save everything and reopen Xcode. The iPad-Storyboard has the same contents as the iPhone-file but everyting could be disarranged.

这节省了我很多时间，希望这对你们有帮助

我只是改变了(另外从@tharkay的答案):

 <device id="ipad9_7" orientation="landscape">

效果很好!

我在XCode 8.3.3中使用了这个

There is a really simple solution for Xcode versions that support size classes (Tested in Xcode 7 which is the current version at the time of writing). Check the "use size classes" checkbox on a storyboard file (File Inspector), confirm that dialog that appears. Then uncheck that same checkbox - Xcode will ask you if you want to use this storyboard with an iPhone or iPad, and convert the screens in it appropriately. No need to directly edit the storyboard file. For both iPad and iPhone, just copy the same storyboard and configure one for iPad and one for iPhone using the described method.

在有人建议使用大小类之前——虽然很好，但对于重度定制的UI，比如游戏等，它们不太方便