IOS 判断设备 与 判断网络连接状态

01

//设备名称

02

return

[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

05

return

[UIDevice
currentDevice].model;

06

07

//系统版本型号,如iPhone
OS

08

return

[UIDevice
currentDevice].systemVersion;

09

10

//系统版本名称，如6.1.3

11

return

[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

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

}