Xcode4.2生成app支持旧版iOS设备

概述先说一下armv6 与 armv7的区别: What is ARMv7? It's a new CPU architecture of iPhone. Make some apps run faster. What does ARMv7 to do with me? Here is a post by most_Unique found on iPhoneCake. Most apps today

先说一下armv6 与 armv7的区别:

What is ARMv7?
It's a new cpu architecture of iPhone. Make some apps run faster.

What does ARMv7 to do with me?
Here is a post by most_Unique found on iPhoneCake.

Most apps today use FAT binary which cracked on ARMv7 device will not work on ARMv6 device.

Armv7的机器有：iPhone4,iPhone4s,iPad,iPad2,iPhone 3GS,iPod 3G Armv6的机器有：iPhone 2G,iPhone3G,iPod 1G,iPod2G

那么要在老机器上跑,比如iphone3G,就必须支持armv6

Xcode 4.2的Architectures设置默认只有armv7

解决方法：将Architectures设置为armv6 armv7，如图：

修改前：

修改后：

这样设置后生成的ipa安装包就可以支持旧版iOS设备了。

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