iPhone和iPad：通用应用程序，我的用户需要哪个操作系统版本？
[英]IPhone & IPad: Universal App, Which OS version do my users need?
问题描述
I have a universal app for ipad and iphone. 
我有一个适用于iPad和iPhone的通用应用程序。 What I'm trying to determine is what OS version do my users need to have in order for my app to work? 我想确定的是我的用户需要的操作系统版本才能使我的应用程序正常工作？
In Xcode, in the top left hand corner I see: "Device - 4.0 | Release | MyAppName" 在Xcode的左上角，我看到：“Device - 4.0 | Release | MyAppName”
Does this mean they need to have ios 4.0? 这是否意味着他们需要安装ios 4.0？ Also, the weird thing is that my ipad is running ios version 3.2.2 but for some reason it works when I build&run the program on the device... 另外，奇怪的是我的ipad正在运行ios版本3.2.2，但出于某种原因，它在我在设备上构建和运行程序时有效...
Can anyone help me out on how this all works? 谁能帮我解决所有问题？ Thanks in advance 提前致谢
1 个解决方案
解决方案1
2 已采纳 2010-10-30 05:46:17
No, this doen't restrict the minimum OS. 不，这不限制最低操作系统。 In the build settings, you should set the base SDK as high as possibile (otherwise the newest devices may not be able to run it), but set the iOS deployment target to as low as possibile (the lowest for an universal app is 3.0 - but check if all your classes that you are using are available in 3.0), because this tells the min. 在构建设置中， 您应该将基本SDK设置为尽可能高 （否则最新设备可能无法运行它），但将iOS部署目标设置为尽可能低 （通用应用程序的最低值为3.0） -但是检查你所使用的所有课程是否都在3.0中可用，因为这告诉了min。 iOS it can run on. 它可以在iOS上运行。
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