一、目录结构:
获取屏幕宽度与高度
获取设备版本号
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
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/// 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
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+ (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
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/// 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
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/// 获取app版本号 + (NSString *)getAPPVerion { return [[[NSBundle mainBundle] infoDictionary] objectForKey:@ "CFBundleShortVersionString" ];
} |
5. 获取电池电量
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/// 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
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/// 当前系统名称 + (NSString *)getSystemName { return [UIDevice currentDevice].systemName;
} |
7. 获取当前系统版本号
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/// 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
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/// 通用唯一识别码UUID + (NSString *)getUUID { return [[UIDevice currentDevice] identifierForVendor].UUIDString;
} |
9. 获取当前设备IP
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// 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
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/// 获取总内存大小 + (long long)getTotalMemorySize { return [NSProcessInfo processInfo].physicalMemory;
} |
11. 获取当前可用内存
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/// 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
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/// 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)
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/// 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
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/// 获取当前语言 + (NSString *)getDeviceLanguage { NSArray *languageArray = [NSLocale preferredLanguages];
return [languageArray objectAtIndex:0];
} |