Question

我在检索附加到currentUser的图像时遇到问题。这是我用来保存信息解析的代码。

-(IBAction)saveButtonAction:(id)sender {

PFUser *currentUserSave = [PFUser currentUser];

userBioString = userBio.text;
genderFieldString = genderField.text;
ageFieldString = ageField.text;

profilePictureData = UIImageJPEGRepresentation(profilePicture.image, .05f);
PFFile *userProfilePictureFileContainer = [PFFile fileWithData:profilePictureData];

currentUserSave[@"userBioParse"] = userBioString;
currentUserSave[@"userGenderParse"] = genderFieldString;
currentUserSave[@"ageFieldParse"] = ageFieldString;
[currentUserSave setObject:userProfilePictureFileContainer forKey:@"userPictureParse"];
userImageData = UIImageJPEGRepresentation(profilePicture.image, 0.5);
userProfileImageFile = [PFFile fileWithData:userImageData];
[currentUserSave setObject:userProfileImageFile forKey:@"userPictureParse"];



[[PFUser currentUser] saveInBackground];

基本上现在我正在尝试回调信息以加载用户个人资料。继续我到目前为止（不多）。

PFQuery *queryUser = [PFUser query];
[queryUser whereKey:@"username" equalTo:[[PFUser currentUser]username]];
[queryUser getFirstObjectInBackgroundWithBlock:^(PFObject *object, NSError *error){


    PFFile *theImage = [object objectForKey:[PFUser currentUser][@"userPictrueParse"]];
    NSData *imageData = [theImage getData];
    UIImage *profileImage = [UIImage imageWithData:imageData];

    if (profileImage == nil) {
        profilePicture.image = [UIImage imageNamed:@"765-default-avatar.png"];
    } else {
        profilePicture.image = profileImage;
    }

}];

Answer 1

您可以使用ParseImageView代替ImageView，并通过以下代码设置图像 -

try{
    ParseFile image = ParseUser.getCurrentUser().getParseFile("picture");
    if (image != null) {

        parseImgView.setParseFile(image);
        parseImgView.loadInBackground();
    }
}catch(Exception e)
{
    e.printStackTrace();
}

Answer 2

将图像文件上传到Parse可能存在问题，因此您还必须保存您的parse-image-file“userProfilePictureFileContainer”。因此，请按照以下代码更改您的方法 -

-(IBAction)saveButtonAction:(id)sender {

    PFUser *currentUserSave = [PFUser currentUser];

    userBioString = userBio.text;
    genderFieldString = genderField.text;
    ageFieldString = ageField.text;

    profilePictureData = UIImageJPEGRepresentation(profilePicture.image, .05f);
    PFFile *userProfilePictureFileContainer = [PFFile fileWithData:profilePictureData];

    [userProfilePictureFileContainer saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error)
    {
        if (!error) {
            //IMAGE SAVED NOW SET TO USER

        currentUserSave[@"userBioParse"] = userBioString;
        currentUserSave[@"userGenderParse"] = genderFieldString;
        currentUserSave[@"ageFieldParse"] = ageFieldString;
        [currentUserSave setObject:userProfilePictureFileContainer forKey:@"userPictureParse"];
        userImageData = UIImageJPEGRepresentation(profilePicture.image, 0.5);
        userProfileImageFile = [PFFile fileWithData:userImageData];
        [currentUserSave setObject:userProfileImageFile forKey:@"userPictureParse"];

        [[PFUser currentUser] saveInBackground];
        }
        else
        {
        // ERROR OCCURED
        }
    }];
}

Answer 3

对于任何有相同问题的人，我必须做的就是解决问题是将我的profilePicture类从UIImageView切换到PFImageView。完成后，我可以使用此代码从解析中调用文件。

PFUser *currentuser = [PFUser currentUser];
PFFile *pictureFile = [currentuser objectForKey:@"userPictureParse"];
profilePicture.file = pictureFile;
[profilePicture loadInBackground];

超级超级简单。谢谢你的帮助。

检索附加到currentUser / Parse的照片

3 个答案: