文丨清枫
AFNetworking开源库封装了原生的方法，由于NSURLConnection的弃用，AFNetworking的使用也有一些改变。
Get请求
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
[manager GET:URL parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
}
success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
NSLog(@"这里打印请求成功要做的事");
}
failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"%@",error); //这里打印错误信息
}];
Post请求
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
NSMutableDictionary *parameters = @{@"":@"",@"":@""};
[manager POST:URL parameters:parameters progress:^(NSProgress * _Nonnull uploadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
}];
Download请求
//创建NSURLSessionConfiguration
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
//创建管理者对象
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
//设置url
NSURL *URL = [NSURL URLWithString:@"http://example.com/download.zip"];
//创建请求对象
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
//下载任务
NSURLSessionDownloadTask *downloadTask = [manager downloadTaskWithRequest:request progress:^(NSProgress * _Nonnull downloadProgress) {
//打印下下载进度
NSLog(@"%lf",1.0 * downloadProgress.completedUnitCount / downloadProgress.totalUnitCount);
} destination:^NSURL *(NSURL *targetPath, NSURLResponse *response) {
//设置下载路径
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) {
//下载完成
NSLog(@"File downloaded to: %@", filePath);
}];
//启动任务
[downloadTask resume];
Upload请求
//创建NSURLSessionConfiguration
NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
//创建管理者对象
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:configuration];
//设置url
NSURL *URL = [NSURL URLWithString:@"http://example.com/upload"];
//创建请求对象
NSURLRequest *request = [NSURLRequest requestWithURL:URL];
//文件路径
NSURL *filePath = [NSURL fileURLWithPath:@"file://path/to/image.png"];
//上传任务
NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithRequest:request fromFile:filePath progress:nil completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
if (error) {
//错误
NSLog(@"Error: %@", error);
} else {
//成功
NSLog(@"Success: %@ %@", response, responseObject);
}
}];
//启动任务
[uploadTask resume];
网络状态
//1.创建网络监测者
AFNetworkReachabilityManager *manager = [AFNetworkReachabilityManager sharedManager];
[manager setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
//监测网络改变
switch (status) {
case AFNetworkReachabilityStatusUnknown:
NSLog(@"未知网络状态");
break;
case AFNetworkReachabilityStatusNotReachable:
NSLog(@"无网络");
break;
case AFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"蜂窝数据网");
break;
case AFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"WiFi网络");
break;
default:
break;
}
}] ;
}
