iOS开发——设备信息小结（未完待续...）

　　1.获取设备的信息

　 UIDevice *device = [[UIDevice alloc] init];

NSString *name = device.name;       //获取设备所有者的名称

NSString *model = device.name;      //获取设备的类别

NSString *type = device.localizedModel; //获取本地化版本

NSString *systemName = device.systemName;   //获取当前运行的系统

NSString *systemVersion = device.systemVersion;//获取当前系统的版本

NSLog(@"name:%@\nmodel:%@\ntype:%@\nsystemName:%@\nsystemVersion:%@\n",name,model,type,systemName,systemVersion);

　　2.获取设备的唯一标示符

　 NSString *identifier = [[[UIDevice currentDevice] identifierForVendor] UUIDString];

NSLog(@"identifier:%@",identifier);

　　3.创建一个uuid（一个随机的标示符）

　 NSString *uuid = [self createUUID];

NSLog(@"uuid:%@",uuid);

- (NSString*)createUUID {

NSString *id = [[NSUserDefaults standardUserDefaults] objectForKey:@"UUID"];    //获取标识为"UUID"的值

if(id == nil)

{

if([[[UIDevice currentDevice] systemVersion] floatValue] > 6.0)

{

//ios 6.0 之后可以使用的api

NSString *identifierNumber = [[NSUUID UUID] UUIDString];

[[NSUserDefaults standardUserDefaults] setObject:identifierNumber forKey:@"UUID"];

[[NSUserDefaults standardUserDefaults] synchronize];

}

else{

//ios6.0之前使用的api

CFUUIDRef uuid = CFUUIDCreate(NULL);

CFStringRef uuidString = CFUUIDCreateString(NULL, uuid);

NSString *identifierNumber = [NSString stringWithFormat:@"%@", uuidString];

[[NSUserDefaults standardUserDefaults] setObject:identifierNumber forKey:@"UUID"];

[[NSUserDefaults standardUserDefaults] synchronize];

CFRelease(uuidString);

CFRelease(uuid);

}

return [[NSUserDefaults standardUserDefaults] objectForKey:@"UUID"];

}

return id;

}

　　4.获取当前屏幕分辨率

　 CGRect rect = [[UIScreen mainScreen] bounds];

CGFloat scale = [[UIScreen mainScreen] scale];

CGFloat width = rect.size.width * scale;

CGFloat height = rect.size.height * scale;

NSLog(@"width:%.f   height:%.f  scale:%.f",width,height,scale);