AFNetworking简单用法

GET请求

 1 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 2
 3 [manager GET:URL parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
 4
 5 }
 6  success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
 7
 8  NSLog(@"这里打印请求成功要做的事");
 9
10 }
11
12 failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull   error) {
13
14 NSLog(@"%@",error);  //这里打印错误信息
15
16 }];

POST 请求

 1 AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 2
 3
 4 NSMutableDictionary *parameters = @{@"":@"",@"":@""};
 5
 6 [manager POST:URL parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
 7
 8
 9 } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
10
11
12 } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
13
14 }];

下载

 1 //1.创建管理者对象
 2     AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 3     //2.确定请求的URL地址
 4     NSURL *url = [NSURL URLWithString:@""];
 5
 6     //3.创建请求对象
 7     NSURLRequest *request = [NSURLRequest requestWithURL:url];
 8
 9     //下载任务
10     NSURLSessionDownloadTask *task = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
11         //打印下下载进度
12         NSLog(@"%lf",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
13
14     } destination:^NSURL * _Nonnull(NSURL * _Nonnull targetPath, NSURLResponse * _Nonnull response) {
15         //下载地址
16         NSLog(@"默认下载地址:%@",targetPath);
17
18         //设置下载路径，通过沙盒获取缓存地址，最后返回NSURL对象
19         NSString *filePath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject];
20         return [NSURL URLWithString:filePath];
21
22
23     } completionHandler:^(NSURLResponse * _Nonnull response, NSURL * _Nullable filePath, NSError * _Nullable error) {
24
25         //下载完成调用的方法
26         NSLog(@"下载完成：");
27         NSLog(@"%@--%@",response,filePath);
28
29     }];
30
31     //开始启动任务
32     [task resume];

上传

第一种方法是通过工程中的文件进行上传

 1 //1.创建管理者对象
 2     AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 3
 4     //2.上传文件
 5     NSDictionary *dict = @{@"username":@"1234"};
 6
 7     NSString *urlString = @"22222";
 8     [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
 9         //上传文件参数
10         UIImage *iamge = [UIImage imageNamed:@"123.png"];
11         NSData *data = UIImagePNGRepresentation(iamge);
12         //这个就是参数
13         [formData appendPartWithFileData:data name:@"file" fileName:@"123.png" mimeType:@"image/png"];
14
15     } progress:^(NSProgress * _Nonnull uploadProgress) {
16
17         //打印下上传进度
18         NSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
19     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
20
21         //请求成功
22         NSLog(@"请求成功：%@",responseObject);
23
24     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
25
26         //请求失败
27         NSLog(@"请求失败：%@",error);
28     }];

第二种是通过URL来获取路径，进入沙盒或者系统相册等等

 1 //1.创建管理者对象
 2     AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
 3     //2.上传文件
 4     NSDictionary *dict = @{@"username":@"1234"};
 5
 6     NSString *urlString = @"22222";
 7     [manager POST:urlString parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
 8
 9         [formData appendPartWithFileURL:[NSURL fileURLWithPath:@"文件地址"] name:@"file" fileName:@"1234.png" mimeType:@"application/octet-stream" error:nil];
10     } progress:^(NSProgress * _Nonnull uploadProgress) {
11
12         //打印下上传进度
13         NSLog(@"%lf",1.0 *uploadProgress.completedUnitCount / uploadProgress.totalUnitCount);
14     } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
15
16         //请求成功
17         NSLog(@"请求成功：%@",responseObject);
18
19     } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
20
21         //请求失败
22         NSLog(@"请求失败：%@",error);
23     }];

监测当前网络状态（网络监听）

1 {
2     // 进行网络监测判断的BOOL值
3     BOOL isOpen;
4 }

 1 if (!isOpen) {
 2
 3     // 打开网络监测的方法
 4     [[AFNetworkReachabilityManager sharedManager] startMonitoring];
 5     isOpen = YES;
 6
 7 } else {
 8
 9     // 关闭网络监测
10     [[AFNetworkReachabilityManager sharedManager] stopMonitoring];
11     isOpen = NO;
12 }
13
14 // 接下来会判断是WiFi状态，还是3g或4g状态，还有网络不可用状态
15 [[AFNetworkReachabilityManager sharedManager] setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
16
17     switch (status) {
18         case AFNetworkReachabilityStatusUnknown:
19             NSLog(@"未知状态");
20             break;
21
22         case AFNetworkReachabilityStatusNotReachable:
23             NSLog(@"未连接状态");
24             break;
25
26         case AFNetworkReachabilityStatusReachableViaWWAN:
27             NSLog(@"手机流量网络");
28             break;
29
30         case AFNetworkReachabilityStatusReachableViaWiFi:
31             NSLog(@"WiFi状态");
32             break;
33
34         default:
35             break;
36     }
37 }];