Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Build a Playlist Browser with Objective-C Managing Playlist Data Creating UIImageViews

Andre Robinson
PLUS
Andre Robinson
Courses Plus Student 6,057 Points
Posted by Andre Robinson
Andre Robinson
Courses Plus Student 6,057 Points

Please help

I Think I'm having syntax error or I'm not assigning the properties right place help

Treehouse.h 
#import <Foundation/Foundation.h>

@interface Treehouse : NSObject

@property (strong, nonatomic) NSDictionary *friends;

@end
Treehouse.m 
#import "Treehouse.h"

@implementation Treehouse

- (instancetype)init
{
    self = [super init];
    if (self) {
        _friends = @{@"firstName": @"Susan",
                     @"lastName": @"Olson",
                     @"profilePicture": @"susan_profile.png"
                     };
    }
    return self;
}



@end
User.h 
#import <Foundation/Foundation.h>

@interface User : NSObject

@property (nonatomic, strong) NSString *firstName;
@property (nonatomic, strong) NSString *lastName;
@property (nonatomic, strong) NSString *profileImageName;
@property (nonatomic, strong) UIImage * profileImage;
@property (nonatomic, strong) UIImageView *userProfilePhoto;

@end
User.m 
#import "User.h"
#import "Treehouse.h"

@implementation User

- (instancetype)init
{
    self = [super init];
    if (self) {
        Treehouse *treehouse = [[Treehouse alloc] init];
        NSDictionary *friendsDict = treehouse.friends;

        _firstName = [friendsDict objectForKey:@"firstName"];
        _lastName = [friendsDict objectForKey:@"lastName"];

        //Enter your code below!
        NSString * profileImageName  = [friendsDictionary objectForKey:profilePicture];
        friendsProfilePicture = [UIImage imageNamed:profileImageName];
    return self;
    }
    return self;
}

@end

1 Answer

Martin Wildfeuer
PLUS
Martin Wildfeuer
Courses Plus Student 11,071 Points
Martin Wildfeuer
Martin Wildfeuer
Courses Plus Student 11,071 Points

Hey there!

What you are doing works, but you are not assigning the image nor the name to the properties defined in the header. I have added the corresponding task as comments to my answer.

#import "User.h"
#import "Treehouse.h"

@implementation User

- (instancetype)init
{
    self = [super init];
    if (self) {
        Treehouse *treehouse = [[Treehouse alloc] init];
        NSDictionary *friendsDict = treehouse.friends;

        _firstName = [friendsDict objectForKey:@"firstName"];
        _lastName = [friendsDict objectForKey:@"lastName"];

        // Let’s start by retrieving the image name as a string from the friendsDict
        // dictionary and storing that in the profileImageName property of the User
        // model. In User.m, use the key profilePicture to get the relevant information.
        _profileImageName = [friendsDict objectForKey:@"profilePicture"];

        // Now that we have the image name as a string, let’s create a UIImage instance
        // using the profileImageName property to retrieve an image. Store this UIImage
        // instance in the profileImage property of the User model.
        _profileImage = [UIImage imageNamed:_profileImageName];

        // For our final task, we need to display the image we just created and to do
        // that we’re going to use a UIImageView instance.
        _userProfilePhoto = [[UIImageView alloc] initWithImage:_profileImage];
    }
    return self;
}

@end

Hope that helps :)