一、目录结构:
获取屏幕宽度与高度
获取iPhone名称
获取app版本号
获取电池电量
获取当前系统名称
获取当前系统版本号
获取通用的唯一识别码UUID
获取当前设备IP
获取总内存大小
获取当前可用内存
获取精准电池电量
获取电池当前的状态(共有4种状态)
获取设备当前的语言
二、具体内容
1. 获取屏幕宽度与高度
1 2 3 4 5 6 7 8/// 屏幕宽度
+ (CGFloat)getDeviceScreenWidth {
return
[UIScreen mainScreen].bounds.size.width;
}
/// 屏幕高度
+ (CGFloat)getDeviceScreenHeight {
return
[UIScreen mainScreen].bounds.size.height;
}
[UIScreen mainScreen].bounds.size.width用的很普遍,一般来说定义成宏更好,然后根据屏幕宽高进行尺寸的适配。
2. 获取设备版本号
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60+ (NSString *)getDeviceName {
// 需要#import "sys/utsname.h"
struct utsname systemInfo;
uname(&systemInfo);
NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
if
([deviceString isEqualToString:@
"iPhone3,1"
])
return
@
"iPhone 4"
;
if
([deviceString isEqualToString:@
"iPhone3,2"
])
return
@
"iPhone 4"
;
if
([deviceString isEqualToString:@
"iPhone3,3"
])
return
@
"iPhone 4"
;
if
([deviceString isEqualToString:@
"iPhone4,1"
])
return
@
"iPhone 4S"
;
if
([deviceString isEqualToString:@
"iPhone5,1"
])
return
@
"iPhone 5"
;
if
([deviceString isEqualToString:@
"iPhone5,2"
])
return
@
"iPhone 5 (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPhone5,3"
])
return
@
"iPhone 5c (GSM)"
;
if
([deviceString isEqualToString:@
"iPhone5,4"
])
return
@
"iPhone 5c (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPhone6,1"
])
return
@
"iPhone 5s (GSM)"
;
if
([deviceString isEqualToString:@
"iPhone6,2"
])
return
@
"iPhone 5s (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPhone7,1"
])
return
@
"iPhone 6 Plus"
;
if
([deviceString isEqualToString:@
"iPhone7,2"
])
return
@
"iPhone 6"
;
if
([deviceString isEqualToString:@
"iPhone8,1"
])
return
@
"iPhone 6s"
;
if
([deviceString isEqualToString:@
"iPhone8,2"
])
return
@
"iPhone 6s Plus"
;
if
([deviceString isEqualToString:@
"iPhone8,4"
])
return
@
"iPhone SE"
;
if
([deviceString isEqualToString:@
"iPod1,1"
])
return
@
"iPod Touch 1G"
;
if
([deviceString isEqualToString:@
"iPod2,1"
])
return
@
"iPod Touch 2G"
;
if
([deviceString isEqualToString:@
"iPod3,1"
])
return
@
"iPod Touch 3G"
;
if
([deviceString isEqualToString:@
"iPod4,1"
])
return
@
"iPod Touch 4G"
;
if
([deviceString isEqualToString:@
"iPod5,1"
])
return
@
"iPod Touch (5 Gen)"
;
if
([deviceString isEqualToString:@
"iPad1,1"
])
return
@
"iPad"
;
if
([deviceString isEqualToString:@
"iPad1,2"
])
return
@
"iPad 3G"
;
if
([deviceString isEqualToString:@
"iPad2,1"
])
return
@
"iPad 2 (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad2,2"
])
return
@
"iPad 2"
;
if
([deviceString isEqualToString:@
"iPad2,3"
])
return
@
"iPad 2 (CDMA)"
;
if
([deviceString isEqualToString:@
"iPad2,4"
])
return
@
"iPad 2"
;
if
([deviceString isEqualToString:@
"iPad2,5"
])
return
@
"iPad Mini (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad2,6"
])
return
@
"iPad Mini"
;
if
([deviceString isEqualToString:@
"iPad2,7"
])
return
@
"iPad Mini (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPad3,1"
])
return
@
"iPad 3 (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad3,2"
])
return
@
"iPad 3 (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPad3,3"
])
return
@
"iPad 3"
;
if
([deviceString isEqualToString:@
"iPad3,4"
])
return
@
"iPad 4 (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad3,5"
])
return
@
"iPad 4"
;
if
([deviceString isEqualToString:@
"iPad3,6"
])
return
@
"iPad 4 (GSM+CDMA)"
;
if
([deviceString isEqualToString:@
"iPad4,1"
])
return
@
"iPad Air (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad4,2"
])
return
@
"iPad Air (Cellular)"
;
if
([deviceString isEqualToString:@
"iPad4,4"
])
return
@
"iPad Mini 2 (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad4,5"
])
return
@
"iPad Mini 2 (Cellular)"
;
if
([deviceString isEqualToString:@
"iPad4,6"
])
return
@
"iPad Mini 2"
;
if
([deviceString isEqualToString:@
"iPad4,7"
])
return
@
"iPad Mini 3"
;
if
([deviceString isEqualToString:@
"iPad4,8"
])
return
@
"iPad Mini 3"
;
if
([deviceString isEqualToString:@
"iPad4,9"
])
return
@
"iPad Mini 3"
;
if
([deviceString isEqualToString:@
"iPad5,1"
])
return
@
"iPad Mini 4 (WiFi)"
;
if
([deviceString isEqualToString:@
"iPad5,2"
])
return
@
"iPad Mini 4 (LTE)"
;
if
([deviceString isEqualToString:@
"iPad5,3"
])
return
@
"iPad Air 2"
;
if
([deviceString isEqualToString:@
"iPad5,4"
])
return
@
"iPad Air 2"
;
if
([deviceString isEqualToString:@
"iPad6,3"
])
return
@
"iPad Pro 9.7"
;
if
([deviceString isEqualToString:@
"iPad6,4"
])
return
@
"iPad Pro 9.7"
;
if
([deviceString isEqualToString:@
"iPad6,7"
])
return
@
"iPad Pro 12.9"
;
if
([deviceString isEqualToString:@
"iPad6,8"
])
return
@
"iPad Pro 12.9"
;
if
([deviceString isEqualToString:@
"i386"
])
return
@
"Simulator"
;
if
([deviceString isEqualToString:@
"x86_64"
])
return
@
"Simulator"
;
return
deviceString;
}
3. 获取iPhone名称
1 2 3 4/// 获取iPhone名称
+ (NSString *)getiPhoneName {
return
[UIDevice currentDevice].name;
}
获取的是你 iPhone 的名字。
4. 获取app版本号
1 2 3 4/// 获取app版本号
+ (NSString *)getAPPVerion {
return
[[[NSBundle mainBundle] infoDictionary] objectForKey:@
"CFBundleShortVersionString"
];
}
5. 获取电池电量
1 2 3 4/// 获取电池电量
+ (CGFloat)getBatteryLevel {
return
[UIDevice currentDevice].batteryLevel;
}
这个方法获取电池电量不是很精确,下边会介绍一个获取精确电池电量的。
6. 获取当前系统名称
1 2 3 4/// 当前系统名称
+ (NSString *)getSystemName {
return
[UIDevice currentDevice].systemName;
}
7. 获取当前系统版本号
1 2 3 4/// 当前系统版本号
+ (NSString *)getSystemVersion {
return
[UIDevice currentDevice].systemVersion;
}
8. 获取通用的唯一识别码UUID
1 2 3 4/// 通用唯一识别码UUID
+ (NSString *)getUUID {
return
[[UIDevice currentDevice] identifierForVendor].UUIDString;
}
9. 获取当前设备IP
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23// 获取当前设备IP
+ (NSString *)getDeviceIPAdress {
NSString *address = @
"an error occurred when obtaining ip address"
;
struct ifaddrs *interfaces = NULL;
struct ifaddrs *temp_addr = NULL;
int success = 0;
success = getifaddrs(&interfaces);
if
(success == 0) {
// 0 表示获取成功
temp_addr = interfaces;
while
(temp_addr != NULL) {
if
( temp_addr->ifa_addr->sa_family == AF_INET) {
// Check if interface is en0 which is the wifi connection on the iPhone
if
([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@
"en0"
]) {
// Get NSString from C String
address = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];
}
}
temp_addr = temp_addr->ifa_next;
}
}
freeifaddrs(interfaces);
return
address;
}
10. 获取总内存大小
1 2 3 4/// 获取总内存大小
+ (long long)getTotalMemorySize {
return
[NSProcessInfo processInfo].physicalMemory;
}
11. 获取当前可用内存
1 2 3 4 5 6 7 8 9 10 11/// 获取当前可用内存
+ (long long)getAvailableMemorySize {
vm_statistics_data_t vmStats;
mach_msg_type_number_t infoCount = HOST_VM_INFO_COUNT;
kern_return_t kernReturn = host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vmStats, &infoCount);
if
(kernReturn != KERN_SUCCESS)
{
return
NSNotFound;
}
return
((vm_page_size * vmStats.free_count + vm_page_size * vmStats.inactive_count));
}
12. 获取精准电池电量
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25/// 获取精准电池电量
+ (CGFloat)getCurrentBatteryLevel {
UIApplication *app = [UIApplication sharedApplication];
if
(app.applicationState == UIApplicationStateActive||app.applicationState==UIApplicationStateInactive) {
Ivar ivar= class_getInstanceVariable([app class],
"_statusBar"
);
id status = object_getIvar(app, ivar);
for
(id aview
in
[status subviews]) {
int batteryLevel = 0;
for
(id bview
in
[aview subviews]) {
if
([NSStringFromClass([bview class]) caseInsensitiveCompare:@
"UIStatusBarBatteryItemView"
] == NSOrderedSame&&[[[UIDevice currentDevice] systemVersion] floatValue] >=6.0) {
Ivar ivar= class_getInstanceVariable([bview class],
"_capacity"
);
if
(ivar) {
batteryLevel = ((int (*)(id, Ivar))object_getIvar)(bview, ivar);
if
(batteryLevel > 0 && batteryLevel <= 100) {
return
batteryLevel;
}
else
{
return
0;
}
}
}
}
}
}
return
0;
}
上面这个方法是通过 runtime 获取电池电量控件类私有变量的值,较为精确。
13. 获取电池当前的状态(共有4种状态)
1 2 3 4 5 6 7 8 9 10 11 12 13 14/// 获取电池当前的状态,共有4种状态
+ (NSString *) getBatteryState {
UIDevice *device = [UIDevice currentDevice];
if
(device.batteryState == UIDeviceBatteryStateUnknown) {
return
@
"UnKnow"
;
}
else
if
(device.batteryState == UIDeviceBatteryStateUnplugged){
return
@
"Unplugged"
;
}
else
if
(device.batteryState == UIDeviceBatteryStateCharging){
return
@
"Charging"
;
}
else
if
(device.batteryState == UIDeviceBatteryStateFull){
return
@
"Full"
;
}
return
nil;
}
14. 获取设备当前的语言
1 2 3 4 5/// 获取当前语言
+ (NSString *)getDeviceLanguage {
NSArray *languageArray = [NSLocale preferredLanguages];
return
[languageArray objectAtIndex:0];
}