iOS 13 Online Shop Application, Build e-Market, for sale

Build a tab bar controller for the iOS online shop app, configure category and search tabs, set the tab bar as the entry point, and preview on the iPhone simulator.

Set up a collection view controller, embed it in a navigation controller, then design three 120×120 cells with 10-point margins and a centered image and a label using auto layout.

Create and wire a custom collection view cell and its controller for a category collection view, set the cell identifier, and connect it in the storyboard.

Create a Firebase project and link it to your iOS app, configure Firebase in the app delegate, and enable email/password authentication, Firestore and storage to store categories remotely.

Create a Swift file to manage Firebase collection references with an enum of collections (users, categories, items, basket), initialize Firestore, and return specific collection references to streamline access.

Organize the iOS online shop project by creating groups for helpers, main views, and custom cells, then implement a category model in Swift with id, name, and image for firepit.

Use constants to prevent typos when saving categories to Firestore in an iOS online shop app. Convert category objects to dictionaries for storage and retrieval in the Firestore database.

Fetch category data from Firebase, convert documents to category objects, and return via a completion handler, preparing categories for display in the collection view.

clean up the category collection view controller to load categories from firebase and display them in a single-section collection view using a reusable cell.

Learn to implement a category collection view cell that shows a category name and image by wiring outlets and populating from a category array.

Autoresize collection view cells in a category view controller by implementing flow layout delegate methods, calculating dynamic item sizes with padding and insets for a three-item-per-row grid.

Switch the storyboard collection view's estimated size from automatic to none, then run the app to ensure labels display correctly; next lecture covers importing missing images.

Import assets by downloading and dragging 29 files into the project, run the app to display images in cells, adjust label size and font, and open category pages for sale.

Display items under a category with a table view controller and a category-to-items segue, then design a cell with image, title, description, and price using auto layout.

Navigate from categories to the items view by implementing a segue, passing the selected category with prepare for segue, and configuring the items table view controller to receive it.

Create an item model to represent for-sale items with key properties. Include id, category id, name, description, price, and image links, plus a dictionary-based initializer.

Implement a function to convert an item into a dictionary and save it to Firestore, enabling item creation, storage, and preparation for shop owner management.

Design the add item view controller user interface in a storyboard for the iOS 13 online shop app, including title and price text fields, a description, and a save action.

Connect outlets and actions in add item view controller, wire up title, price, and description fields, implement category passing and keyboard dismissal, and add field validation helpers.

Wire category access via segues, create and populate an item, and save it to Firebase, with optional images, then navigate back to the category list.

Learn to add an image gallery to an item, selecting up to six images from camera or library, converting to ui images, and configuring permissions in info.plist.

Set up Firebase storage for the iOS 13 online shop app, configure test rules, and implement image upload and download with a Swift downloader, unique naming, and image links.

Upload images to firebase in two functions, handling image data and filenames, track upload progress with a completion callback, and collect download URLs for all images.

Upload item images to Firebase storage, save image links to items in Firestore, and verify multi-image support, with an activity indicator to indicate upload progress.

Implement a loading indicator to visualize item upload progress in the iOS 13 online shop app, including show, hide, and start/stop animations.

Demonstrate testing an error message for required fields, display a two-second auto-dismissal with an error indicator, and explore various activity indicators to enhance the iOS 13 online shop experience.

Learn to load items by category in an iOS 13 online shop app, clean the table view, set the category title, and fetch items from Firebase on view appear.

Implement a download items function in an iOS 13 online shop app to fetch items by category from Firebase Firestore and return them via a completion callback.

Load items from firebase by category into the item table view, populate a custom cell with name, description, price, and image, and refresh the table view.

Implement an image downloader that fetches multiple links asynchronously, converts data into a UIImage array, and returns results via a completion handler when all downloads finish.

Create a currency converter helper that formats prices using a number formatter, locale-aware currency style, and dynamic font sizing for display across the app.

Designs the item detail view for the iOS 13 online shop app, using a collection view for images, labels for name and price, and a description text view.

Wire up item view controller in an iOS 13 online shop app, connecting outlets for image, price, name, and description, and pass the item and its images to the view.

Detect user taps in the table view, deselect the row, instantiate the item view controller from the storyboard, pass the selected item, and present it through the navigation controller.

Resize the collection view cell to image size, add the image with zero constraints, set a reuse identifier, use blue guides, and enable horizontal scrolling for the image collection view.

Configure the item view controller to display the item name, price in currency, and description, and implement the collection view data source and delegate to prevent crashes and show images.

Create a download pictures function to fetch all image URLs for an item, update the item images, and reload the image collection view, showing a placeholder when no images exist.

Display item images in an iOS 13 online shop app by loading them into a collection view with a placeholder and handling missing images safely.

Configure the item collection view with zero margins and a fixed height, compute available width for non-square cells, disable estimated size, enable image paging, and show add to basket button.

Replace the default back with a custom back image and add a right basket button; wire actions to pop the navigation and add items to a per-user basket.

Create a Swift basket class for an iOS e-market app, modeling id, ownerId, and items as strings with dictionary initializers, and enable saving to Firebase and downloading by ownerId.

Update and manage the basket by adding or removing items, updating basket data in Firebase, targeting the basket document by id, and handling completion and errors.

Create and manage a shopping basket in an iOS 13 e-market app by creating a new basket for first-time users or updating an existing basket with item IDs in Firestore.

Implement an update basket flow triggered by add to basket, check user login, update the existing basket with new items, and show localized success or error messages.

Create a basket view with a table view of items in the basket, a checkout button at the bottom, and a footer displaying the total basket value.

Build a basket view controller with a table view, outlets, and a checkout button, connect the UI, and load basket items from Firebase to display and manage purchases.

Implement basket total display by adding helpers to compute total items and total price, format currency, update labels, refresh the basket, and enable the checkout button when items exist.

Update the checkout button status by enabling it only when the basket has items. Change the button background to pink when enabled and gray when disabled, while updating the label.

Enable deleting items from the basket by implementing table view editing, handling delete actions, removing the item by id, refreshing the table, and updating the cloud basket in firebase.

Manage the basket in an iOS 13 online shop app by removing items, refreshing the total, and disabling checkout when empty; navigate to an item view by row selection.