一些有用的device信息，可能有些是私有API

雨点打透心脏的1/2处 2022-03-26 08:40 140阅读 0赞

原文地址：http://hi.baidu.com/marktian/item/e0f555ee0e08b2225a2d64e0

1. 手机号码：  
这个也是undocument api

NSString\* phoneNumber = CTSettingCopyMyPhoneNumber();

2. 总磁盘大小：

NSDictionary \*fattributes = \[\[NSFileManager defaultManager\] attributesOfFileSystemForPath:NSHomeDirectory() error:nil\];  
\[fattributes objectForKey:NSFileSystemSize\];  
  
剩余空间：

\[fattributes objectForKey:NSFileSystemFreeSize\];

3. 内存大小：

size\_t size = sizeof(int);  
int results;  
int mib\[2\] = \{CTL\_HW, HW\_PHYSMEM\};

sysctl(mib, 2, &results, &size, NULL, 0);

![dfb9e62ac65c10382b9c1a63b2119313b27e899f.jpg][] NetworkStatus netstatus = \[reachable currentReachabilityStatus\];  
switch (netstatus)  
\{  
case NotReachable:  
// 没有网络连接  
reachableStatus = NSLocalizedString(@"No Network", "");  
break;  
case ReachableViaWWAN:  
// 使用3G网络  
reachableStatus = @"GPRS/3G";  
break;  
case ReachableViaWiFi:  
// 使用WiFi网络  
reachableStatus = @"WIFI";  
break;  
\}  
这个可知网络类型。

![03c3155c10385343822d53809313b07ec880889f.jpg][]cpu和总线频率：  
int result;  
mib\[0\] = CTL\_HW;  
mib\[1\] = HW\_CPU\_FREQ;  
length = sizeof(result);  
if (sysctl(mib, 2, &result, &length, NULL, 0) < 0)  
\{  
perror("getting cpu frequency");  
\}  
printf("CPU Frequency = %u hz\\n", result);  
  
int result2;  
mib\[0\] = CTL\_HW;  
mib\[1\] = HW\_BUS\_FREQ;  
length = sizeof(result2);  
if (sysctl(mib, 2, &result2, &length, NULL, 0) < 0)  
\{  
perror("getting bus frequency");  
\}

printf("Bus Frequency = %u hz\\n", result);

![e7e969a1cd11728b9af55883c8fcc3cec1fd2ca5.jpg][]得到4种内存信息：  
  
mach\_msg\_type\_number\_t count = HOST\_VM\_INFO\_COUNT;  
vm\_statistics\_data\_t vmstat;  
if (host\_statistics(mach\_host\_self(), HOST\_VM\_INFO, (host\_info\_t)&vmstat, &count) != KERN\_SUCCESS)  
\{  
NSLog(@"Failed to get VM statistics.");  
\[\_dic setObject:@"Failed to get VM statistics." forKey:KTTMemorySize\_Wire\];  
\}  
else  
\{  
float total = vmstat.wire\_count + vmstat.active\_count + vmstat.inactive\_count + vmstat.free\_count;  
float wired = vmstat.wire\_count / total \* 100;  
float active = vmstat.active\_count / total \* 100;  
float inactive = vmstat.inactive\_count / total \* 100;  
float free = vmstat.free\_count / total \* 100;  
// NSString \*str = \[NSString stringWithFormat:@"%d %d %d %d %.2f %.2f %.2f %.2f %.0f %.0f"  
// , vmstat.wire\_count, vmstat.active\_count, vmstat.inactive\_count, vmstat.free\_count  
// , wired, active, inactive, free  
// , total, total \* pageSize  
// \];

[dfb9e62ac65c10382b9c1a63b2119313b27e899f.jpg]: /images/20220326/f3975b74f7b14c87becfaf0acc9c190e.png
[03c3155c10385343822d53809313b07ec880889f.jpg]: /images/20220326/b93b887ff8cd4ffcaf66ce5e55f87307.png
[e7e969a1cd11728b9af55883c8fcc3cec1fd2ca5.jpg]: /images/20220326/9e3b055acf8a4a8394c469d568b807ae.png