AFNetworking 一般用法

2018-02-22 20:14:23来源:cnblogs.com作者:东方🐺人点击

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AFNetworking是一个用于iOS、macOS、watchOS和tvOS的功能强大的网络库。它构建在基础URL加载系统之上,扩展了强大的高级网络抽象,并将其构建为Cocoa。它有一个模块化的架构,设计良好,具有强大功能的api

使用 CocoaPods 引入

pod 'AFNetworking', '~> 3.0'
  • 创建一个下载任务
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];NSURL *URL = [NSURL URLWithString:@"http://example.com/download.zip"];NSURLRequest *request = [NSURLRequest requestWithURL:URL];NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:nil destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {    NSURL *documentsDirectoryURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:nil];    return [documentsDirectoryURL URLByAppendingPathComponent:[response suggestedFilename]];} completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {    NSLog(@"File downloaded to: %@", filePath);}];[downloadTask resume];
  • 创建一个上传任务
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];NSURLRequest *request = [NSURLRequest requestWithURL:URL];NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {    if (error) {        NSLog(@"Error: %@", error);    } else {        NSLog(@"Success: %@ %@", response, responseObject);    }}];[uploadTask resume];
  • 创建一个上传任务并获取当前上传进度
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:@"http://example.com/upload" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {        [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"file://path/to/image.jpg"] name:@"file" fileName:@"filename.jpg" mimeType:@"image/jpeg" error:nil];    } error:nil];AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];NSURLSessionUploadTask *uploadTask;uploadTask = [manager              uploadTaskWithStreamedRequest:request              progress:^(NSProgress * _Nonnull uploadProgress) {                  // This is not called back on the main queue.                  // You are responsible for dispatching to the main queue for UI updates                  dispatch_async(dispatch_get_main_queue(), ^{                      //Update the progress view                      [progressView setProgress:uploadProgress.fractionCompleted];                  });              }              completionHandler:^(NSURLResponse * _Nonnull response, id  _Nullable responseObject, NSError * _Nullable error) {                  if (error) {                      NSLog(@"Error: %@", error);                  } else {                      NSLog(@"%@ %@", response, responseObject);                  }              }];[uploadTask resume];
  • 创建一个数据任务
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];NSURL *URL = [NSURL URLWithString:@"http://httpbin.org/get"];NSURLRequest *request = [NSURLRequest requestWithURL:URL];NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:request completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {    if (error) {        NSLog(@"Error: %@", error);    } else {        NSLog(@"%@ %@", response, responseObject);    }}];[dataTask resume];
  • 正常数据请求
NSString *URLString = @"http://example.com";NSDictionary *parameters = @{@"foo": @"bar", @"baz": @[@1, @2, @3]};[[AFHTTPRequestSerializer serializer] requestWithMethod:@"GET" URLString:URLString parameters:parameters error:nil];/** GET http://example.com?foo=bar&baz[]=1&baz[]=2&baz[]=3 */[[AFHTTPRequestSerializer serializer] requestWithMethod:@"POST" URLString:URLString parameters:parameters error:nil];/**POST http://example.com/Content-Type: application/x-www-form-urlencodedfoo=bar&baz[]=1&baz[]=2&baz[]=3*/
  • 监测网络状态
[[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {    NSLog(@"Reachability: %@", AFStringFromNetworkReachabilityStatus(status));}];[[AFNetworkReachabilityManager sharedManager] startMonitoring];
  • SSL证书无效
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];manager.securityPolicy.allowInvalidCertificates = YES; // not recommended for production

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