是否有办法限制装置,即Peit 3G和更高装置,而不是支持Pi 2G和下层装置。 我找不到一个不同的因素。 但是,我很相信,Pi 2G和下级能够运行3。
有一个。 这可能是艰难的。 http://developer.apple.com/library/ios/#documentation/General/Reference/InfoPlistKeyReference/Articles/iPhoneOSKeys.html%23/apple_ref/doc/uid/TP40009252-SW3” rel=“nofollow noreferer”RequiredDeviceCapabilities <具体指明了3G. 你可以尝试利用另一个关键,即3G的硬件特征,即Pimn t,但你有可能被 Apple果拒绝建造你。
由于Sam Ritchie也认为,使用时间制检查来检测硬件也是一个坏的想法,因为(1) 很可能引发拒绝,如果是,带旧装置的人能够购买这些器具,只能发现它赢得了拖车,他们会抱怨,这将导致 Apple果从销售中提取你的 app子。
在不使用 Apple果分解物的情况下这样做的唯一途径是将 iOS4或4。 4.0不上一代。 我认识到你想要的是目标3.1,但你要么允许所有装置,要么允许目标4.0。
One nice way to do this would be to check out the UIDevice-Extension project on github. It gives you the ability to detect what hardware you re running on.
我怀疑,解决这一问题的方法是审查你的意见,并列举你为什么不希望较早的电话用户能够上网。 一旦你缩小了该特征,你便可以很容易地检查该装置是否存在该具体特征。 为此,包括<代码> http://developer.apple.com/library/ios/#documentation/iphone/conceptual/iphoneosprogrammingguide/Build TimeConfiguration/BuildtimeConfiguration.html” rel=“nofollow” 你们发现,这是“降低所需装置能力”标题之下。 亲爱!
在你看来,增加一些最低的定位功能(即 Apple果可以拒绝这种功能),然后增加“gps”对你评估UIRequiredDeviceCap的关键。
但是,认为2G用户中实际仍在购买的器具比例目前似乎是微镜,不值得一提。 仅说明你描述的这些装置缺乏支持。
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