Question

在视图控制器中，用户可以从照片库中选择图像，添加文本，然后在按下按钮后，应用程序应该创建一个PFObject并将其保存在后台。这是我的按钮操作代码方法：

-(IBAction)sendPressed:(id)sender
{


    NSLog(@"boton subir cadena pulsado");

    //Upload a new picture
    NSData *pictureData = UIImagePNGRepresentation(self.imageView.image);

    PFFile *file = [PFFile fileWithName:@"img" data:pictureData];
    [file saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {

        if (succeeded){
            NSLog(@"IMAGEN CARGADA");

            //Add the image to the object, and add the comments
            PFObject *imageObject = [PFObject objectWithClassName:@"cadenas"];
            [imageObject setObject:file forKey:@"image"];

            [imageObject setObject:self.commentTextField.text forKey:@"chain_name"];


            [imageObject saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {

                if (succeeded){
                    //Go back to the wall
                    [self.navigationController popViewControllerAnimated:YES];
                }
                else{
                    NSString *errorString = [[error userInfo] objectForKey:@"error"];
                    [self showErrorView:errorString];
                }
            }];
        }
        else{
            NSString *errorString = [[error userInfo] objectForKey:@"error"];
            [self showErrorView:errorString];
        }



    } progressBlock:^(int percentDone) {

    }];
}

一段时间后，调试器出现错误：Error: invalid type for key image, expected map, but got file (Code: 111, Version: 1.2.15)

我一直在Parse文档中搜索，但没有关于这个问题的线索。

Answer 1

您必须为列选择错误的类型。将其更改为文件类型。

            NSData *imageData = UIImagePNGRepresentation(YourImageView.image);

            PFFile *imageFile = [PFFile fileWithData:imageData];
            [userObject setObject:imageFile forKey:@"YOUR_KEY"];
            [userObject saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
                if(succeeded)
                {
                    NSLog(@"Object saved");
                }else
                {
                    NSLog(@"Error : %@",error);
                }
            }];

尝试在iOS应用中使用图像保存Parse对象

1 个答案: