iOS - (多图上传已封装)

Posted 2020-08-27

 

我封装的使用AFNetworking上传多图的一个方法。带进度条回调，希望对你用帮助，我app中亲测可用，不知道你的服务器是如何接收数据的： 声明： /** *  上传带图片的内容，允许多张图片上传（URL）POST * *  @param url                 网络请求地址 *  @param images              要上传的图片数组（注意数组内容需是图片） *  @param parameter           图片数组对应的参数 *  @param parameters          其他参数字典 *  @param ratio               图片的压缩比例（0.0~1.0之间） *  @param succeedBlock        成功的回调 *  @param failedBlock         失败的回调 *  @param uploadProgressBlock 上传进度的回调 */ +(void)startMultiPartUploadTaskWithURL:(NSString *)url                            imagesArray:(NSArray *)images                      parameterOfimages:(NSString *)parameter                         parametersDict:(NSDictionary *)parameters                       compressionRatio:(float)ratio                           succeedBlock:(void(^)(id operation, id responseObject))succeedBlock                            failedBlock:(void(^)(id operation, NSError *error))failedBlock                    uploadProgressBlock:(void(^)(float uploadPercent,long long totalBytesWritten,long long totalBytesExpectedToWrite))uploadProgressBlock; 实现： +(void)startMultiPartUploadTaskWithURL:(NSString *)url                            imagesArray:(NSArray *)images                      parameterOfimages:(NSString *)parameter                         parametersDict:(NSDictionary *)parameters                       compressionRatio:(float)ratio                           succeedBlock:(void (^)(id, id))succeedBlock                            failedBlock:(void (^)(id, NSError *))failedBlock                    uploadProgressBlock:(void (^)(float, long long, long long))uploadProgressBlock{          if (images.count == 0) {         NSLog(@"上传内容没有包含图片");         return;     }     for (int i = 0; i < images.count; i++) {         if (![images isKindOfClass:[UIImage class]]) {             NSLog(@"images中第%d个元素不是UIImage对象",i+1);             return;         }     }          AFHTTPRequestOperation *operation = [[self sharedOperation].operationManager POST:url parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {                  int i = 0;         //根据当前系统时间生成图片名称         NSDate *date = [NSDate date];         NSDateFormatter *formatter = [[NSDateFormatter alloc]init];         [formatter setDateFormat:@"yyyy年MM月dd日"];         NSString *dateString = [formatter stringFromDate:date];                  for (UIImage *image in images) {             NSString *fileName = [NSString stringWithFormat:@"%@%d.png",dateString,i];             NSData *imageData;             if (ratio > 0.0f && ratio < 1.0f) {                  imageData = UIImageJPEGRepresentation(image, ratio);             }else{                 imageData = UIImageJPEGRepresentation(image, 1.0f);             }                         [formData appendPartWithFileData:imageData name:parameter fileName:fileName mimeType:@"image/jpg/png/jpeg"];         }                   } success:^(AFHTTPRequestOperation *operation, id responseObject) {         succeedBlock(operation,responseObject);              } failure:^(AFHTTPRequestOperation *operation, NSError *error) {         NSLog(@"%@",error);         failedBlock(operation,error);              }];          [operation setUploadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite) {         CGFloat percent = totalBytesWritten * 1.0 / totalBytesExpectedToWrite;         uploadProgressBlock(percent,totalBytesWritten,totalBytesExpectedToWrite);     }];      }