Ios 解析图像保存问题

我不太熟悉一般的编码，已经基于apple和解析代码构建了一个照片区应用程序

尽管多次尝试调整代码，但我无法将图像保存到我的分析仪表板。你能告诉我哪里出了问题吗

我使用的代码如下：

- (IBAction)showImagePickerForPhotoPicker:(id)sender
{
NSLog(@"Code shows image picker for album in APLViewController.m");
[self showImagePickerForSourceType:UIImagePickerControllerSourceTypePhotoLibrary];

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
UIImage *originalImage, *editedImage, *imageToUse;

// Handle a still image picked from a photo album
if (CFStringCompare ((CFStringRef) mediaType, kUTTypeImage, 0)
    == kCFCompareEqualTo) {

    editedImage = (UIImage *) [info objectForKey:
                               UIImagePickerControllerEditedImage];
    originalImage = (UIImage *) [info objectForKey:
                                 UIImagePickerControllerOriginalImage];

    if (editedImage) {
        imageToUse = editedImage;
    } else {
        imageToUse = originalImage;

    }
    UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
    NSLog(@"Code reached parse save code");
    NSData *imageData = UIImagePNGRepresentation (originalImage);
    PFFile *imageFile = [PFFile fileWithName:@"image.png" data:imageData];

    PFObject *userPhoto = [PFObject objectWithClassName:@"UserPhoto"];
    userPhoto[@"imageName"] = @"My trip to Hawaii!";
    userPhoto[@"imageFile"] = imageFile;
    [userPhoto saveInBackground];
    NSLog(@"code reaches addobject to captured images array");
    [self.capturedImages addObject:image];

    UIGraphicsBeginImageContext(CGSizeMake(640, 960));
    [image drawInRect: CGRectMake(0, 0, 640, 960)];

---

谢谢

我认为保存过程需要在imagePicker之外。应该是这样的。并应在一切都已完成时运行，以拾取图像

        PFUser *profile = [PFUser currentUser];
        NSData *imageData = UIImageJPEGRepresentation(profileImage.image, 0.8);
        NSString *filename = [NSString stringWithFormat:@"%@", profile.username];
        PFFile *imageFile = [PFFile fileWithName:filename data:imageData];
       [profile setObject:imageFile forKey:@"profileimageFile"];
       [profile saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
            if (!error) {
                // Show success message
            }
            else {
                // Show error message
            }       
        }];

要保存配置文件图像，您需要首先选择要保存图像的位置。在这种情况下，是在当前用户。然后将拾取的图像转换为NSData文件。然后，您需要为该数据文件命名。然后从中创建一个PFFile。然后保存该文件以进行分析

将图像恢复到原来的状态是一样的，但是是向后的：

PFFile *userImageFile = [PFUser currentUser][@"profileImageFile"];
[userImageFile getDataInBackgroundWithBlock:^(NSData *imageData, NSError *error) {
    if (!error) {
        UIImage *image = [UIImage imageWithData:imageData];
    }        
}];

---

我认为保存过程需要在imagePicker之外。应该是这样的。并应在一切都已完成时运行，以拾取图像

        PFUser *profile = [PFUser currentUser];
        NSData *imageData = UIImageJPEGRepresentation(profileImage.image, 0.8);
        NSString *filename = [NSString stringWithFormat:@"%@", profile.username];
        PFFile *imageFile = [PFFile fileWithName:filename data:imageData];
       [profile setObject:imageFile forKey:@"profileimageFile"];
       [profile saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
            if (!error) {
                // Show success message
            }
            else {
                // Show error message
            }       
        }];

要保存配置文件图像，您需要首先选择要保存图像的位置。在这种情况下，是在当前用户。然后将拾取的图像转换为NSData文件。然后，您需要为该数据文件命名。然后从中创建一个PFFile。然后保存该文件以进行分析

将图像恢复到原来的状态是一样的，但是是向后的：

PFFile *userImageFile = [PFUser currentUser][@"profileImageFile"];
[userImageFile getDataInBackgroundWithBlock:^(NSData *imageData, NSError *error) {
    if (!error) {
        UIImage *image = [UIImage imageWithData:imageData];
    }        
}];