iOS 获取设备的各种信息

作者: Q以梦为马 | 来源:发表于2017-04-07 19:00 被阅读212次
    iOS 获取设备的各种信息

    一、目录结构:

    1. 获取屏幕宽度与高度
    2. 获取设备版本号
    3. 获取iPhone名称
    4. 获取app版本号
    5. 获取电池电量
    6. 获取当前系统名称
    7. 获取当前系统版本号
    8. 获取通用的唯一识别码UUID
    9. 获取当前设备IP
    10. 获取总内存大小
    11. 获取当前可用内存
    12. 获取精准电池电量
    13. 获取电池当前的状态(共有4种状态)
    14. 获取设备当前的语言

    二、具体内容

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

    提示:上面代码如果直接复制的话有些会报错,这是因为需要导入头文件,详细代码请点击 iOS 获取设备的各种信息

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