上传图片流到服务器(AFN方法) (多张图片)(图片流)

 

上传图片流到服务器(AFN方法) (多张图片)(图片流)

第一步//获取图片

  

    UIAlertController *actionSheet = [UIAlertController alertControllerWithTitle:@"添加照片" message:nil preferredStyle:UIAlertControllerStyleActionSheet];

    

    UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {

        [actionSheet dismissViewControllerAnimated:YES completion:^{

            

            

            

        }];

    }];

    

    

    UIAlertAction *PhotoAlbum = [UIAlertAction actionWithTitle:@"从相册获取" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

       

        [self reloadImagesFromLibrary];

        

        

    }];

    

    UIAlertAction *camera = [UIAlertAction actionWithTitle:@"从摄像头获取" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {

       

        UIImagePickerController *picker = [[UIImagePickerController alloc] init];

        

        if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {

            

            picker.sourceType = UIImagePickerControllerSourceTypeCamera;

            

            NSArray *temp_MediaTypes = [UIImagePickerController availableMediaTypesForSourceType:picker.sourceType];

            

            picker.mediaTypes = temp_MediaTypes;

            

            picker.delegate = self;

            

            picker.allowsEditing = YES;

            

        }

        

        

        [self presentViewController:picker animated:YES completion:^{

            

        }];

        

        

    }];

    

    [actionSheet addAction:PhotoAlbum];

    [actionSheet addAction:camera];

    [actionSheet addAction:cancel];

    

    

   [self presentViewController:actionSheet animated:YES completion:^{

       

   }];

//这个是调用摄像头的回调方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{

    

    [self dismissViewControllerAnimated:YES completion:nil];

    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];

    

    [self.frontIDCard setImage:[image imageWithRenderingMode:1] forState:UIControlStateNormal];

    //因为要上传多张照片所以放到一个数组里 (要注意控制图片的尺寸和质量)

    [self.postImageArr addObject:[self image:image byScalingToSize:CGSizeMake(400, 800)]];

   

}

//这个是选取拍摄的照片的方法

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker{

    

    [picker dismissViewControllerAnimated:YES completion:^{

        

    }];

}

//更改图片大小

- (UIImage *)image:(UIImage*)image byScalingToSize:(CGSize)targetSize {

    UIImage *sourceImage = image;

    UIImage *newImage = nil;

    

    UIGraphicsBeginImageContext(targetSize);

    

    CGRect thumbnailRect = CGRectZero;

    thumbnailRect.origin = CGPointZero;

    thumbnailRect.size.width  = targetSize.width;

    thumbnailRect.size.height = targetSize.height;

    

    [sourceImage drawInRect:thumbnailRect];

    

    newImage = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    

    return newImage ;

}

//传图片流

- (void)postImages {

    

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    manager.responseSerializer = [AFHTTPResponseSerializer serializer];

    

  

    [manager POST:Period parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData)

     {

         // 上传 多张图片

         for(NSInteger i = 0; i < self.postImageArr.count; i++) {

        

             

             NSData * imageData = UIImageJPEGRepresentation([self.postImageArr objectAtIndex: i], 0.5);

             // 上传的参数名

             

             NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

             formatter.dateFormat = @"yyyyMMddHHmmss";

             NSString *str = [formatter stringFromDate:[NSDate date]];

             NSString *fileName = [NSString stringWithFormat:@"%@.jpg", str];

             [formData appendPartWithFileData:imageData name:str fileName:fileName mimeType:@"image/jpeg"];

         }

     }

          success:^(AFHTTPRequestOperation *operation, id responseObject)

     {

         

         NSString *result = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

         NSLog(@"完成 %@", result);

     }

          failure:^(AFHTTPRequestOperation *operation, NSError *error)

     {

         NSLog(@"错误 %@", error.localizedDescription);

     }];

   

    

 }