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目錄:
1.獲取當前屏幕寬度、高度
2.獲取當前設備ip
3.獲取手機系統版本
4.獲取設備型號
5.獲取設備版本號
6.判斷當前的iPhone設備/系統版本
7.判斷是真機還是模擬器
8.獲取唯一設備標識 UUID

先了解iPhone相關尺寸:

Pasted Graphic.png

1.獲取當前屏幕寬度、高度

 CGFloat *UI_View_Width = [UIScreen mainScreen].bounds.size.width
 CGFloat *UI_View_Height = [UIScreen mainScreen].bounds.size.height

拿到尺寸我們可以做什么呢：

1.1 針對設備機型5以下由于屏幕寬度相對較，我們的產品大大讓我針對5以下將某些控件字段的字號單獨對待相對調小字號，解決展示不全問題

        if ([UIScreen mainScreen].bounds.size.width < 375.0) {
            orderNo.font = [UIFont systemFontOfSize:12];
        } else {
            orderNo.font = [UIFont systemFontOfSize:14];
        }

1.2 當一張展示圖需求是等比例的縮放，這時候也需要拿到當前屏幕的寬高去展示，

    UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, UI_View_Width, UI_View_Height)];
    scrollView.backgroundColor = QTXBackgroundColor;
    [self.view addSubview:scrollView];
    CGFloat height = 2920 * UI_View_Width / 750; // 我的原圖尺寸是750*2920
    scrollView.contentSize = CGSizeMake(0, height);
    
    UIImageView *imageview = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"consume"]];
    imageview.frame = CGRectMake(0, 0, UI_View_Width, height);
    [scrollView addSubview:imageview];

2.獲取當前設備ip

#import "QTXGetIPTool.h"
#import <ifaddrs.h>
#import <arpa/inet.h>

@implementation QTXGetIPTool

+ (NSString *)deviceIPAdress {
    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 表示獲取成功
        
        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);  
    NSLog(@"手機設備的IP是：%@", address);
    return address;  
}

3.獲取手機系統版本

+(NSString *)phoneVersion{
    return [[UIDevice currentDevice] systemVersion];
}

4.獲取設備型號

這個方法只能獲取到iPhone、iPad這種信息，無法獲取到是iPhone 4、iPhpone5這種具體的型號

+(NSString *)phoneModel{
    return [[UIDevice currentDevice] model];
}

5.獲取設備版本號

+ (NSString*)deviceVersion
{
    // 需要#import "sys/utsname.h"
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
    
    //iPhone
    if ([deviceString isEqualToString:@"iPhone1,1"])    return @"iPhone 1G";
    if ([deviceString isEqualToString:@"iPhone1,2"])    return @"iPhone 3G";
    if ([deviceString isEqualToString:@"iPhone2,1"])    return @"iPhone 3GS";
    if ([deviceString isEqualToString:@"iPhone3,1"])    return @"iPhone 4";
    if ([deviceString isEqualToString:@"iPhone3,2"])    return @"Verizon 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";
    if ([deviceString isEqualToString:@"iPhone5,3"])    return @"iPhone 5C";
    if ([deviceString isEqualToString:@"iPhone5,4"])    return @"iPhone 5C";
    if ([deviceString isEqualToString:@"iPhone6,1"])    return @"iPhone 5S";
    if ([deviceString isEqualToString:@"iPhone6,2"])    return @"iPhone 5S";
    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";
    
     //iPod 

　　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 5G"; return @"iPod Touch 5G";

　　//iPad
    if ([deviceString isEqualToString:@"iPad1,1"])      return @"iPad";
    if ([deviceString isEqualToString:@"iPad2,1"])      return @"iPad 2 (WiFi)";
    if ([deviceString isEqualToString:@"iPad2,2"])      return @"iPad 2 (GSM)";
    if ([deviceString isEqualToString:@"iPad2,3"])      return @"iPad 2 (CDMA)";
    if ([deviceString isEqualToString:@"iPad2,4"])      return @"iPad 2 (32nm)";
    if ([deviceString isEqualToString:@"iPad2,5"])      return @"iPad mini (WiFi)";
    if ([deviceString isEqualToString:@"iPad2,6"])      return @"iPad mini (GSM)";
    if ([deviceString isEqualToString:@"iPad2,7"])      return @"iPad mini (CDMA)";
    
    if ([deviceString isEqualToString:@"iPad3,1"])      return @"iPad 3(WiFi)";
    if ([deviceString isEqualToString:@"iPad3,2"])      return @"iPad 3(CDMA)";
    if ([deviceString isEqualToString:@"iPad3,3"])      return @"iPad 3(4G)";
    if ([deviceString isEqualToString:@"iPad3,4"])      return @"iPad 4 (WiFi)";
    if ([deviceString isEqualToString:@"iPad3,5"])      return @"iPad 4 (4G)";
    if ([deviceString isEqualToString:@"iPad3,6"])      return @"iPad 4 (CDMA)";
    
    if ([deviceString isEqualToString:@"iPad4,1"])      return @"iPad Air";
    if ([deviceString isEqualToString:@"iPad4,2"])      return @"iPad Air";
    if ([deviceString isEqualToString:@"iPad4,3"])      return @"iPad Air";
    if ([deviceString isEqualToString:@"iPad5,3"])      return @"iPad Air 2";
    if ([deviceString isEqualToString:@"iPad5,4"])      return @"iPad Air 2";
    if ([deviceString isEqualToString:@"i386"])         return @"Simulator";
    if ([deviceString isEqualToString:@"x86_64"])       return @"Simulator";
    
    if ([deviceString isEqualToString:@"iPad4,4"]||[deviceString isEqualToString:@"iPad4,5"]@"iPad4,5"]||[deviceString isEqualToString:@"iPad4,6"]) return @"iPad mini 2";
 　 if ([deviceString isEqualToString:@"iPad4,7"]||[deviceString isEqualToString:@"iPad4,8"]||[deviceString isEqualToString:@"iPad4,9"])  return @"iPad mini 3";
　　return deviceString;
}

6.判斷當前的iPhone設備/系統版本

//判斷是否為iPhone
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
//判斷是否為iPad
#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
//判斷是否為ipod
#define IS_IPOD ([[[UIDevice currentDevice] model] isEqualToString:@"iPod touch"])
// 判斷是否為 iPhone 5SE
#define iPhone5SE [[UIScreen mainScreen] bounds].size.width == 320.0f && [[UIScreen mainScreen] bounds].size.height == 568.0f
// 判斷是否為iPhone 6/6s
#define iPhone6_6s [[UIScreen mainScreen] bounds].size.width == 375.0f && [[UIScreen mainScreen] bounds].size.height == 667.0f
// 判斷是否為iPhone 6Plus/6sPlus
#define iPhone6Plus_6sPlus [[UIScreen mainScreen] bounds].size.width == 414.0f && [[UIScreen mainScreen] bounds].size.height == 736.0f
//獲取系統版本
#define IOS_SYSTEM_VERSION [[[UIDevice currentDevice] systemVersion] floatValue]
//判斷 iOS 8 或更高的系統版本
#define IOS_VERSION_8_OR_LATER (([[[UIDevice currentDevice] systemVersion] floatValue] >=8.0)? (YES):(NO))

7.判斷是真機還是模擬器

#if TARGET_OS_IPHONE
//iPhone Device
#endif
#if TARGET_IPHONE_SIMULATOR
//iPhone Simulator
#endif

8.獲取唯一設備標識 UUID

不要忘了打開Keychain Sharing, 即使卸載也不會更改 UUID

ZLGetUUID文件:

//  獲取設備唯一標識 UUID

#import <Foundation/Foundation.h>

@interface ZLGetUUID : NSObject

+(NSString *)getUUID;

@end

#import "ZLGetUUID.h"
#import "ZLKeyChainStore.h"

#define  KEY_USERNAME_PASSWORD @"com.company.app.usernamepassword"
#define  KEY_USERNAME @"com.company.app.username"
#define  KEY_PASSWORD @"com.company.app.password"

@implementation ZLGetUUID

+ (NSString *)getUUID {
    
    NSString * strUUID = (NSString *)[ZLKeyChainStore load:@"com.company.app.usernamepassword"];
    
    // 首次執行該方法時，uuid為空
    if ([strUUID isEqualToString:@""] || !strUUID)
    {
        //生成一個uuid的方法
        CFUUIDRef uuidRef = CFUUIDCreate(kCFAllocatorDefault);
        
        strUUID = (NSString *)CFBridgingRelease(CFUUIDCreateString (kCFAllocatorDefault,uuidRef));
        
        //將該uuid保存到keychain
        [ZLKeyChainStore save:KEY_USERNAME_PASSWORD data:strUUID];
        
    }
    return strUUID;
}

@end

ZLKeyChainStore文件:


#import <Foundation/Foundation.h>

@interface ZLKeyChainStore : NSObject

+ (void)save:(NSString *)service data:(id)data;
+ (id)load:(NSString *)service;
+ (void)deleteKeyData:(NSString *)service;

@end

#import "ZLKeyChainStore.h"

@implementation ZLKeyChainStore

+ (NSMutableDictionary *)getKeychainQuery:(NSString *)service {
    return [NSMutableDictionary dictionaryWithObjectsAndKeys:
            (id)kSecClassGenericPassword,(id)kSecClass,
            service, (id)kSecAttrService,
            service, (id)kSecAttrAccount,
            (id)kSecAttrAccessibleAfterFirstUnlock,(id)kSecAttrAccessible,
            nil];
}

+ (void)save:(NSString *)service data:(id)data {
    //Get search dictionary
    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];
    //Delete old item before add new item
    SecItemDelete((CFDictionaryRef)keychainQuery);
    //Add new object to search dictionary(Attention:the data format)
    [keychainQuery setObject:[NSKeyedArchiver archivedDataWithRootObject:data] forKey:(id)kSecValueData];
    //Add item to keychain with the search dictionary
    SecItemAdd((CFDictionaryRef)keychainQuery, NULL);
}


+ (id)load:(NSString *)service {
    id ret = nil;
    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];
    //Configure the search setting
    //Since in our simple case we are expecting only a single attribute to be returned (the password) we can set the attribute kSecReturnData to kCFBooleanTrue
    [keychainQuery setObject:(id)kCFBooleanTrue forKey:(id)kSecReturnData];
    [keychainQuery setObject:(id)kSecMatchLimitOne forKey:(id)kSecMatchLimit];
    CFDataRef keyData = NULL;
    if (SecItemCopyMatching((CFDictionaryRef)keychainQuery, (CFTypeRef *)&keyData) == noErr) {
        @try {
            ret = [NSKeyedUnarchiver unarchiveObjectWithData:(__bridge NSData *)keyData];
        } @catch (NSException *e) {
            NSLog(@"Unarchive of %@ failed: %@", service, e);
        } @finally {
        }
    }
    if (keyData)
        CFRelease(keyData);
    return ret;
}

+ (void)deleteKeyData:(NSString *)service {
    NSMutableDictionary *keychainQuery = [self getKeychainQuery:service];
    SecItemDelete((CFDictionaryRef)keychainQuery);
}

@end

舉個??,我們產品要求一個手機號就綁定兩個設備,那么我們就需要讀取這個設備唯一標識號,在登錄或者注冊接口里,作為一個參數傳給后臺,后臺去判斷.

#import "ZLGetUUID.h"
 
params[@"equipmentNumber"] = [ZLGetUUID getUUID];  // 唯一設備號

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獲取關于iPhone的相關信息

獲取關于iPhone的相關信息

1.獲取當前屏幕寬度、高度

2.獲取當前設備ip

3.獲取手機系統版本

4.獲取設備型號

5.獲取設備版本號

6.判斷當前的iPhone設備/系統版本

7.判斷是真機還是模擬器

8.獲取唯一設備標識 UUID

推薦閱讀更多精彩內容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美 国产 综合 欧美 视频

獲取關于iPhone的相關信息

1.獲取當前屏幕寬度、高度

2.獲取當前設備ip

3.獲取手機系統版本

4.獲取設備型號

5.獲取設備版本號

6.判斷當前的iPhone設備/系統版本

7.判斷是真機還是模擬器

8.獲取唯一設備標識 UUID

推薦閱讀更多精彩內容

三个男躁一个女,国精产品一区一手机的秘密,麦子交换系列最经典十句话,欧美国产综合欧美视频