iOSAFN

作者：佚名 IOS开发编辑：admin 更新时间：2022-07-23

AFN

NSURLConnection包装方法

// 1.创建AFN管理者
// AFHTTPRequestOperationManager内部包装了NSURLConnection
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

// 2.利用AFN管理者发送请求
NSDictionary *params = @{
                       @"username" : @"name",
                       @"pwd" : @"passWord"
                       };
[manager GET:@"http://12.2.226.186:32812/login" parameters:params success:^(AFHTTPRequestOperation *operation, id responSEObject) {
   NSLog(@"请求成功---%@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
   NSLog(@"请求失败---%@", error);
}];

POST

// 1.创建AFN管理者
// AFHTTPRequestOperationManager内部包装了NSURLConnection
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

// 2.利用AFN管理者发送请求
NSDictionary *params = @{
                       @"username" : @"name",
                       @"pwd" : @"password"
                       };
[manager POST:@"http://12.2.226.186:32812/login" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) {
  NSLog(@"请求成功---%@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
  NSLog(@"请求失败---%@", error);
}];

NSURLsession包装方法

GET

// 1.创建AFN管理者
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

// 2.利用AFN管理者发送请求
NSDictionary *params = @{
                       @"username" : @"name",
                       @"pwd" : @"password"
                       };

[manager GET:@"http://12.2.226.186:32812/login" parameters:params success:^(NSURLSessionDataTask *task, id responseObject) {
   NSLog(@"请求成功---%@", responseObject);
} failure:^(NSURLSessionDataTask *task, NSError *error) {
  NSLog(@"请求失败---%@", error);
}];

POST

// 1.创建AFN管理者
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

// 2.利用AFN管理者发送请求
NSDictionary *params = @{
                       @"username" : @"name",
                       @"pwd" : @"password"
                       };

[manager POST:@"http://12.2.226.186:32812/login" parameters:params success:^(NSURLSessionDataTask *task, id responseObject) {
  NSLog(@"请求成功---%@", responseObject);
} failure:^(NSURLSessionDataTask *task, NSError *error) {
  NSLog(@"请求失败---%@", error);
}];

文件下载

 // 1.创建AFN管理者
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    // 2.利用AFN管理者发送请求
     NSURLRequest *reuqest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://12.2.226.186:32812/resources/videos/minion_02.mp4"]];

    [[manager downloadTaskWithRequest:reuqest progress:nil  destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
        // targetPath: 已经下载好的文件路径
        NSLog(@"targetPath = %@", targetPath);
        NSString *path = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) firstObject];
        NSURL *documentsDirectoryPath = [NSURL fileURLWithPath:[path stringByAppendingPathComponent:response.suggestedFilename]];
        // 返回需要保存文件的目标路径
        return documentsDirectoryPath;
    } completionHandler:^(NSURLResponse *response, NSURL *filePath, NSError *error) {
        NSLog(@"filePath = %@", filePath);
    }] resume];

监听进度

/*
     要跟踪进度，需要使用 NSProgress，是在 iOS 7.0 推出的，专门用来跟踪进度的类！

     NSProgress只是一个对象！如何跟踪进度！-> KVO 对属性变化的监听！
     @property int64_t totalUnitCount;        总单位数
     @property int64_t completedUnitCount;    完成单位数
     */
    NSProgress *progress = nil;
    // 注册通知
    [progress addObserver:self forKeyPath:@"completedUnitCount" options:NSKeyValueObservingOptionNew context:nil];
    - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
    NSLog(@"%@", object);
    /**
     准确的获得进度
     localizedDescription               10%
     localizedAdditionalDescription     completed 32,768 of 318,829
     fractionCompleted                  0.102776(completedUnitCount/totalUnitCount)
     */
    if ([object isKindOfClass:[NSProgress class]]) {
        NSProgress *p = (NSProgress *)object;
        NSLog(@"%@, %@, %f", p.localizedDescription, p.localizedAdditionalDescription, p.fractionCompleted);

文件上传

// 1.创建AFN管理者
    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    // 2.利用AFN管理者发送请求
    [manager POST:@"http://12.2.226.186:32812/upload" parameters:@{@"username" : @"jx"} constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        NSData *data = [NSData dataWithContentsOfFile:@"/Users/Jx-Liu/Desktop/Snip20150811_1.png"];
        [formData appendPartWithFileData:data name:@"file" fileName:@"jx.png" mimeType:@"image/png"];
    } success:^(NSURLSessionDataTask *task, id responseObject) {
          NSLog(@"请求成功---%@", responseObject);
    } failure:^(NSURLSessionDataTask *task, NSError *error) {
        NSLog(@"请求失败---%@", error);
    }];
[formData appendPartWithFileURL:[NSURL fileURLWithPath:@"/Users/Jx-Liu/Desktop/Snip20150811_1.png"] name:@"file" fileName:@"jx.png" mimeType:@"image/png" error:nil];
[formData appendPartWithFileURL:[NSURL fileURLWithPath:@"/Users/Jx-Liu/Desktop/Snip20150811_1.png"] name:@"file" error:nil];

AFN解耦
- 自定义单利类基础Manager
- 优点: 替换框架只需要求改单利类即可
序列化
- AFN默认将服务器返回的数据当做JSON处理, 会自动解析
  - manager.responseSerializer = [AFJSONRequestSerializer serializer];
- 告诉AFN，以xml形式解析服务器返回的数据
  - manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
- 告诉AFN, 不处理服务器返回的数据, 原样返回
  - manager.responseSerializer = [AFHTTPResponseSerializer serializer];

网络状态检测

/ 1.创建网络监听对象
    AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];
    // 2.设置网络状态改变回调
    [manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
        /*
         AFNetworkReachabilityStatusUnknown          = -1,  // 未知
         AFNetworkReachabilityStatusNotReachable     = 0,   // 无连接
         AFNetworkReachabilityStatusReachableViaWWAN = 1,   // 3G 花钱
         AFNetworkReachabilityStatusReachableViaWiFi = 2,   // 局域网络,不花钱
         */
        switch (status) {
            case 0:
                NSLog(@"无连接");
                break;
            case 1:
                NSLog(@"3G 花钱");
                break;
            case 2:
                NSLog(@"局域网络,不花钱");
                break;
            default:
                NSLog(@"未知");
                break;
        }
    }];

    // 3.开始监听
    [manager startMonitoring];

苹果自带

    - (void)viewDidLoad {
    [super viewDidLoad];

    // 注册通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(getNetworkStatus) name:kReachabilityChangedNotification object:nil];

    // 开始监听网络
    self.reachability = [Reachability reachabilityForInternetConnection];
    [self.reachability startNotifier];
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [self.reachability stopNotifier];
}
- (void)getNetworkStatus{
    if ([Reachability reachabilityForLocalWiFi].currentReachabilityStatus != NotReachable) {
        NSLog(@"wifi");
    }else if ([Reachability reachabilityForInternetConnection].currentReachabilityStatus != NotReachable)
    {
        NSLog(@"手机自带网络");
    }else
    {
        NSLog(@"没有网络");
    }
}

CocoaPods安装失败

CocoaPods安装东西的时候它要找到Xcode的Developer文件夹, 如果找不到会报如下错误

解决方案

JX替换为你自己的用户名

sudo xcode-select --switch /Users/JX/applications/Xcode.app/Contents/Developer

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