Tag: 2013

Please note, this blog entry is from a previous course. You might want to check out the current one.

Recreate the user-interface from last week’s assignment but rely entirely on the above-mentioned Core Data database to present it.

Copy the files for the second table-view controller from the previous project together with the image-view controller and the flicker cache class into the current project.

Change the table view controller to be a subclass of the core-data-table-view controller, and change the public property to be a Tag entity.

@interface FlickrPhotoTVC : CoreDataTableViewController
@property (nonatomic, strong) Tag *tag;

Continue reading “cs193p – Assignment #6 Task #2 Part #2”

Please note, this blog entry is from a previous course. You might want to check out the current one.

Recreate the user-interface from last week’s assignment but rely entirely on the above-mentioned Core Data database to present it.

Start by copying the content of story board for the iPhone of the previous SPoT project into the current project. Copy the class files for the first table-view controller of the first tab of the previous project together with the files for the network-activity indicator into the current project as well as the core-data-table-view controller from the demo of the lecture.

Define the table view controller as sub class of the ore-data-table-view controller:

@interface FlickrPhotoTagTVC : CoreDataTableViewController

Continue reading “cs193p – Assignment #6 Task #2 Part #1”

Please note, this blog entry is from a previous course. You might want to check out the current one.

Create a Core Data-managed object database model in Xcode suitable for storing any information you queried from Flickr in the last assignment that you feel you will need to perform the rest of the Required Tasks in this assignment. Take the time to give some thought to what Entities, Attributes and Relationships your database will need before you dive in.

Following the recommendations of the assignment create a new blank universal single-view project. Create a new data model. Start by adding two new Entities “Photo” and “Tag” to hold the photos and its tags. Add a many-to-many relationship between them, because a photo can have multiple tags and a tag can have multiple photos.

The first table view should show the name of the tag and the number of photos it is associated with. Create a new string attribute for the tag entity to hold the name. The number of photos will be derived using its relationship to the photo tags.
Continue reading “cs193p – Assignment #6 Task #1”

Please note, this blog entry is from a previous course. You might want to check out the current one.

Sort all tables alphabetically (and case insensitively) except the Recents table (which should still be sorted with the most recently viewed first). A good solution to this might involve some of the array sorting methods that use blocks.

… actually the code up to this task already does sorting, but now it will be implemented using blocks.

For the tags create a new property – to do not have to resort everything every time the table needs to display a row:

@property (nonatomic, strong) NSArray *tags;
...
- (void)updatePhotosByTag
{
    ...
    self.tags = [[photosByTag allKeys] sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
        return [obj1 compare:obj2 options:NSCaseInsensitiveSearch];
    }];
}

Continue reading “cs193p – Assignment #5 Task #6”