转：http://blog.csdn.net/jinglijun/article/details/7292674
-(void)getIOSVersion
{
//#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 50000 //此方法和编译器相关
//quanju.iOSVersion=1;
//#endif
float version = [[[UIDevice currentDevice] systemVersion] floatValue];
if (version >= 5.0)
{
quanju.iOSVersion=1;//定义全局变量标记ios版本
}
}
-(void)getIOSModel
{
CGSize sizeToRequest; if([[[UIDevicecurrentDevice] model] rangeOfString:@"iPad"].location== 0) sizeToRequest = CGSizeMake(748, 110); else sizeToRequest = CGSizeMake(320, 48);
}
//下面是ios内其他相关信息的判断方法
获取进程信息和设备信息（包括设备类型，序列号，ios版本等）
[[NSProcessInfo processInfo] globallyUniqueString],
[[NSProcessInfo processInfo] hostName],
[[NSProcessInfo processInfo] operatingSystemName],
[[NSProcessInfo processInfo] operatingSystemVersionString],
[[NSProcessInfo processInfo] physicalMemory],
[[NSProcessInfo processInfo] processName]);
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[UIDevice currentDevice].uniqueIdentifier,
[UIDevice currentDevice].name,
[UIDevice currentDevice].systemName,
[UIDevice currentDevice].systemVersion,
[UIDevice currentDevice].model,
[UIDevice currentDevice].localizedModel,
[UIDevice currentDevice].batteryLevel
___________________________________________________
NSLog([[UIDevice currentDevice] name]); // Name of the phone as named by user
NSLog([[UIDevice currentDevice] uniqueIdentifier]); // A GUID like string
NSLog([[UIDevice currentDevice] systemName]); // "iPhone OS"
NSLog([[UIDevice currentDevice] systemVersion]); // "2.2.1"
NSLog([[UIDevice currentDevice] model]); // "iPhone" on both devices
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