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這篇文章主要介紹了怎么使用IOS實(shí)現(xiàn)WIFI傳輸,具有一定借鑒價(jià)值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
業(yè)務(wù)場(chǎng)景上存在需要將手機(jī)里的文件、圖片傳遞給其他的設(shè)備,
不僅僅局限于傳書(shū)、資料啥的都有可能傳遞
最base的方法:設(shè)備之間加個(gè)云,設(shè)備上傳資料到云,云同步資料到各個(gè)設(shè)備,適用于多設(shè)備之間,這個(gè)沒(méi)講的必要
如果是兩設(shè)備之間,忽略服務(wù)器,怎么搞?聯(lián)想到圖書(shū)App中的WiFi傳書(shū),貌似沒(méi)云端概念的,怎么做到的?
pod "GCDWebServer", "~> 3.0"
override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) if let filepath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first as NSString? { let path = filepath.appendingPathComponent("transfer") if !FileManager.default.fileExists(atPath: path) { do { try FileManager.default.createDirectory(atPath: path, withIntermediateDirectories: false, attributes: nil) } catch { print(error) } } webServer = GCDWebUploader(uploadDirectory: path) webServer?.delegate = self webServer?.allowHiddenItems = true webServer?.allowedFileExtensions = ["doc", "docx", "xls", "xlsx", "txt", "pdf", "jpeg", "jpg"] webServer?.title = "善齋工具" webServer?.prologue = "歡飲使用善齋工具的WIFI管理平臺(tái)" webServer?.epilogue = "善齋書(shū)屋制作" if webServer?.start() == true, let address = IPHelper.deviceIPAdress(), address.count > 0, let port = webServer?.port { ipLb.text = "1.確保設(shè)備在同一局域網(wǎng) \n2.上傳時(shí)勿關(guān)閉該頁(yè)面 \n3.請(qǐng)網(wǎng)頁(yè)中輸入該地址 \nhttp://\(address):\(port)/" } else { ipLb.text = "GCDWebServer not running!" } } }
#import <ifaddrs.h> #import <arpa/inet.h> #import <net/if.h> @implementation IPHelper + (NSString *)deviceIPAdress { NSString *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); return address; } #define IOS_CELLULAR @"pdp_ip0" #define IOS_WIFI @"en0" #define IOS_VPN @"utun0" #define IP_ADDR_IPv4 @"ipv4" #define IP_ADDR_IPv6 @"ipv6" #pragma mark - 獲取設(shè)備當(dāng)前網(wǎng)絡(luò)IP地址 + (NSString *)getIPAddress:(BOOL)preferIPv4 { NSArray *searchArray = preferIPv4 ? @[ IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6 ] : @[ IOS_VPN @"/" IP_ADDR_IPv6, IOS_VPN @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4 ] ; NSDictionary *addresses = [self getIPAddresses]; NSLog(@"addresses: %@", addresses); __block NSString *address; [searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop) { address = addresses[key]; //篩選出IP地址格式 if([self isValidatIP:address]) *stop = YES; } ]; return address ? address : @"0.0.0.0"; } + (BOOL)isValidatIP:(NSString *)ipAddress { if (ipAddress.length == 0) { return NO; } NSString *urlRegEx = @"^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\." "([01]?\\d\\d?|2[0-4]\\d|25[0-5])$"; NSError *error; NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:urlRegEx options:0 error:&error]; if (regex != nil) { NSTextCheckingResult *firstMatch=[regex firstMatchInString:ipAddress options:0 range:NSMakeRange(0, [ipAddress length])]; if (firstMatch) { NSRange resultRange = [firstMatch rangeAtIndex:0]; NSString *result=[ipAddress substringWithRange:resultRange]; //輸出結(jié)果 NSLog(@"%@",result); return YES; } } return NO; } + (NSDictionary *)getIPAddresses { NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8]; // retrieve the current interfaces - returns 0 on success struct ifaddrs *interfaces; if(!getifaddrs(&interfaces)) { // Loop through linked list of interfaces struct ifaddrs *interface; for(interface=interfaces; interface; interface=interface->ifa_next) { if(!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) { continue; // deeply nested code harder to read } const struct sockaddr_in *addr = (const struct sockaddr_in*)interface->ifa_addr; char addrBuf[ MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN) ]; if(addr && (addr->sin_family==AF_INET || addr->sin_family==AF_INET6)) { NSString *name = [NSString stringWithUTF8String:interface->ifa_name]; NSString *type; if(addr->sin_family == AF_INET) { if(inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) { type = IP_ADDR_IPv4; } } else { const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6*)interface->ifa_addr; if(inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) { type = IP_ADDR_IPv6; } } if(type) { NSString *key = [NSString stringWithFormat:@"%@/%@", name, type]; addresses[key] = [NSString stringWithUTF8String:addrBuf]; } } } // Free memory freeifaddrs(interfaces); } return [addresses count] ? addresses : nil; }
let address = IPHelper.deviceIPAdress() let port = webServer?.port http://\(address):\(port)/
確保設(shè)備在同一局域網(wǎng)
上傳時(shí)勿關(guān)閉該頁(yè)面
局域網(wǎng)中,設(shè)備作為server,其他設(shè)備作為client,簡(jiǎn)單的HTTP方式上傳文件到server,初始配置的路徑即為server接收后存放文件的路徑
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