IOS 判断设备 与 判断网络连接状态

一、判断设备

01//设备名称

02return [UIDevice currentDevice].name;

03 

04//设备型号，只可得到是何设备，无法得到是第几代设备

05return [UIDevice currentDevice].model;

06 

07//系统版本型号,如iPhone OS

08return [UIDevice currentDevice].systemVersion;

09 

10//系统版本名称，如6.1.3

11return [UIDevice currentDevice].systemName;

01//判断是否为iPhone

02#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

03 

04//判断是否为iPad

05#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)

06 

07//判断是否为ipod

08#define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])

09 

10//判断是否为iPhone5

11#define IS_IPHONE_5_SCREEN [[UIScreen mainScreen] bounds].size.height >= 568.0f && [[UIScreen mainScreen] bounds].size.height < 1024.0f

二、判断网络连接状态

1、导入SystemConfiguration.framework,并#import<SystemConfiguration/SCNetworkReachability.h>

2、判断设备是否联网

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print?

01+ (BOOL)connectedToNetwork{

02     

03    //创建零地址，0.0.0.0的地址表示查询本机的网络连接状态

04     

05    struct sockaddr_storage zeroAddress;

06     

07    bzero(&zeroAddress, sizeof(zeroAddress));

08    zeroAddress.ss_len = sizeof(zeroAddress);

09    zeroAddress.ss_family = AF_INET;

10     

11    // Recover reachability flags

12    SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);

13    SCNetworkReachabilityFlags flags;

14     

15    //获得连接的标志

16    BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);

17    CFRelease(defaultRouteReachability);

18     

19    //如果不能获取连接标志，则不能连接网络，直接返回

20    if (!didRetrieveFlags)

21    {

22        return NO;

23    }

24    //根据获得的连接标志进行判断

25 

26    BOOL isReachable = flags & kSCNetworkFlagsReachable;

27    BOOL needsConnection = flags & kSCNetworkFlagsConnectionRequired;

28    return (isReachable&&!needsConnection) ? YES : NO;

29}