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

Posted by Jac Wynn
Jac Wynn
16,850 Points

Creating instance of UIImageView

How do I allocate and initialize the userProfilePhoto property to use the profileImage that was created?

This maybe be something simple but im confused!

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!
        _profileImageName = [friendsDict objectForKey:@"profilePicture"];
        _profileImage = [UIImage imageNamed:_profileImageName];

    }
    return self;
}
- (UIImageView *)

@end

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Jac,

As per the task it asks you to create a new instance of UIImageView using the initWithImage convenience constructor which accepts an instance of UIImage, so what we need to do is allocate a new instance of UIImageView and pass ourprofileImage` property to it like below.

_userProfilePhoto = [[UIImageView alloc] initWithImage:_profileImage];

Hope that helps.

Jac Wynn
Jac Wynn
16,850 Points

Thanks that worked out for me!