Intermediate Mobile App Development (Swift 3, iPhone iOS10)

Design the user interface for a single JSON app, implementing a searchable table view, customizable background colors, a transparent table, and bold white text to demonstrate basic UI design.

Json, or javascript object notation, is a lightweight data interchange format easy for humans to read and machines to parse, using key-value structures and validation before adding to your app.

Learn to read JSON from the bundle, obtain the data, and print it to verify contents. Then convert the data to an object for later use.

Learn to deserialize json from data using json serialization within a do catch syntax, try it, and use the fragment option to access the top level object and dictionary values.

Extract the top-level object from JSON, access the friends key, cast to dictionaries, and use the resulting data to populate a table view.

Set up the table view, connect outlets, and implement the data source to display json contents in table cells by mapping dictionary keys such as name and detail.

design a core data enabled user interface by building a simple table view in storyboard, wiring the data source and delegate, and implementing a save action.

Add UIAlertController to collect user input by presenting an alert with a configured text field for the user to type their name, including a placeholder and a save action.

Register user input from a text field, save it to a model array, and display names in a table view by wiring the data source and reloading the table.

Modify UIAlertController to take two text fields for name and year of birth, wire up inputs, and populate a simple model in Swift 3 for iOS 10.

Set up a Core Data model by creating an entity called people, with attributes such as name and year stored as strings, treated as a database table.

Learn how to save an NSManagedObject to Core Data by creating a managed object context, defining a people entity, inserting an object, setting values, and persisting with a save.

Fetch all objects from core data using a fetch request on app launch, using a managed context and the app delegate, and display the results in a table.

Demonstrates displaying an NSManagedObject detail using value for key, casting to string, and safely accessing the name key to populate table text with data persisted across launches.

Edit an existing NSManagedObject by updating a single key with setValue(forKey:), handle errors with do-catch, and refresh the table view by fetching data.

Access the managed context to delete objects, save the context, and refresh the table; understand deleting from the data model and its relationships to design most apps.

Install CocoaPods and streamline library integration for your Swift projects by running pod install, replacing manual copy-and-drag with a simple dependency workflow.

Learn how to use CocoaPods to add a library by running pod init, editing the Podfile, and running pod install, then open the workspace in Xcode.

Learn how to use a third-party library with cocoapods in an iOS app, including setting up the workspace, importing the library, wiring image filtering, and implementing delegates.

Discover how to find and integrate a third-party library using CocoaPods, add it with a Podfile, run pod install, and manage dependencies to complete the integration.

Create a basic UI for a CALayer app sample by configuring a view, setting its size to 50 by 15, changing the background color, and centering it on screen.

Explore how CALayer defines a backing store for image-based content, manages visuals, and exposes properties such as background color, border, and shadow, including cg color versus ui color usage.

Learn to add a border to any view by configuring its layer, including setting the border color with cgColor and applying it to labels or views.

Learn how to add rounded corners to a view or layer by setting the corner radius, and make a circle by setting it to half the view's width or height.

Learn how to add a shadow to a layer, set its offset (width and height), choose a dark grey color, and adjust opacity for a subtle shadow effect.

Learn how to add an image to a layer by hiding existing content in a view, supply the image asset, run the app, and address layout issues.

Learn how to use the maskToBounds property to bound layer corners, compare with clipsToBounds, and understand how masking affects shadows and edge drawing.

Add a layer as a sublayer inside the view, set its frame to 80 by 80, background color red, and corner radius about 40, and mask it to another layer.

Create a gradient layer and apply it to a view, defining gradient colors as CGColor stops, and arrange multiple colors with adjustable spacing for smooth black-to-red transitions.

Learn a one line code trick to flip a layer's content, adjust the bottom radius to the top, and use opacity and hiding options to control visibility.

Learn how to use the layer's contents gravity to control image positioning and center images within bounds for proper display, distinguishing small from large image behavior.

Design a multi-screen UI by duplicating four controllers, color-labeling them blue, red, and orange, and enabling 3d touch to switch between three screens with zoom and rearrange features.

Explore creating app shortcut items inside info.plist with key-value arrays, including title, subtitle, icon type, and user info, plus the delegate approach for shortcuts.

Create shortcut items inside the app delegate for blue, red, and orange screens, initializing localized titles, subtitles, and an icon, then test in the simulator.

Intercept home screen quick action shortcut item selections in app launch and perform actions using a switch over the shortcut type, handling blue, red, and orange cases with a default.

Discover how to present different screens from a shortcut item by configuring storyboards and view controllers, assigning storyboard IDs, and managing routes with 3D touch and debugging with print statements.

Create and apply a custom, single-color icon for a shortcut item by using a template image in your bundle or asset catalog, then verify the Facebook icon appears.

Discover how to check whether a device has 3d touch capability before taking action, using a simple availability check and running code only when it is available.

Design the ui for the graphics app by configuring a custom drawing view, subclassing a ui view, and overriding the draw method to perform custom drawing in a storyboard-connected component.

Create a graphics context, set the stroke color, move to a start point, draw a line to an end point, and stroke the path to render the 2d line.

Discover a simpler method to create a cgcolor from a ui color using color creation functions and a reference approach.

Learn to draw paths by refactoring code into a dedicated function, configuring the graphics context, setting stroke color, and drawing a triangular path with move-to and line-to commands.

Learn to draw a rectangle path by moving to starting points, copying coordinates, adjusting stroke color, and closing the path to complete the shape.

Draw a rectangle using AddRect by defining an origin point (x, y) and its width and height, then stroke the brown rectangle in the context.

learn to fill a path with color in a graphics context by setting the color and filling the path, using a rectangle example and distinguishing fill from stroke.

Learn how to fill a rectangle with color and apply stroke and border colors in Swift 3, using context fill and stroke operations to create bold, colored graphics.

Learn to draw a circle by defining a canvas, creating a rectangle, drawing an ellipse inside it, stroking the path, and filling the shape with color to render a circle.

Learn to draw ellipses by adjusting parameters to shape loops and achieve a globe-like form, exploring different positions and proportions.

Draw a circle with a shadow by configuring the graphics context, setting a shadow offset, and saving and restoring state for accurate shading.

Learn to draw an image using Phong draw, starting from point 0,0. Plot each dot to form the image.

Draw the image inside a 200 by 200 rectangle starting at (10, 10) to ensure it fits the space without distortion, illustrating rectangle-based image rendering.

Learn to redraw a view by calling setNeedsDisplay when a button is pressed, cycling through drawings via a tracker and a switch case that renders circles, rectangles, or images.

Design a basic user interface for a gesture recognizer app in a single storyboard view, with an image, a feedback label, outlets, and an orange background.

Learn to add a tap gesture recognizer to a view or image, configure target and action, enable user interaction, and customize tap counts for live or test mode.

Add a long press gesture recogniser in Swift 3 for iOS 10, detect a five-second press, print the image, and tune finger movement thresholds to trigger the action.

Add and customize a swipe gesture recognizer in a Swift 3 iOS app, set the direction to left, implement the swipe action to reset a counter, and test the interaction.

Add a pinch gesture recognizer to a view, use the transform to scale the view, and reset the scale back to 1 to prevent it from continuing to grow.

Add a pan gesture recognizer to track user movement, translate the view's position by the gesture's translation, and reset translation to keep the object movable without drift.

Learn how to add a tap recognizer from the object library in storyboard, configure its properties, and connect it to an action to handle a double tap.

Learn to design a Touch ID-secured iOS UI that prompts for the ID, reveals secret information, and uses status labels, color cues, and a close action.

Explore using the local authentication framework to check if a device supports Touch ID, preflight biometrics policy, and handle errors with code-based cases such as not enrolled or no passcode.

Demonstrate a successful Touch ID on the device and display an error on a label by connecting the device, enrolling a finger, and testing success and failure.

Evaluate biometric authentication policies using Touch ID in a Swift 3 iOS app, handle success or error outcomes, and securely reveal information after confirming user identity.

Learn how to implement a successful authentication flow and unwind segue to access a secret page, handle biometric and password fallback, and manage storyboard transitions in Swift 3 for iOS.

Implement a fallback password flow by creating a check password function, presenting a password alert with a text field, and authenticating input to grant access via password or touch ID.

Design the app user interface by laying out an internet image and four 70x70 buttons (play, stop, pause, resume) with constraints, a black background, and outlets in Xcode.

Learn to use URLSession and download task objects, including background downloads with a background session configuration, and track progress via delegate methods while downloading data to a temp file.

Demonstrates implementing a download with progress feedback, converting downloaded data to an image, and displaying it in the UI, while moving temporary data to permanent storage.

Learn how to use the download completed with error delegate method for download tasks, handle error descriptions, and trigger UI updates like showing a fallback image when needed.

Add a bottom progress bar to monitor downloads, adjust height and track color, bind progress to a model with animated updates, and dispatch updates on the main thread.

Master how to stop, pause, and resume a download task, including canceling, suspending, and resuming downloads, and track progress to completion.

Configure app transport security in the info.plist to enable loading from http links by adding the App Transport Security Settings key and Allow Arbitrary Loads option.