Ios Screencasts

#iOS Screencasts

30 Results

Protocol Oriented Dependency Injection

8 minutes

Tight coupling between view controllers in your application can lead to difficult maintenance as you add and remove features. This video will explore how using Protocols can make our Dependency Injection more loosely coupled. This improves the flexibility of the code and makes our application easier to change.

Finding and Fixing Memory Issues

7 minutes

Incorrectly managing memory in our applications can result in hard to find bugs and possible crashes. In this video, we will explore the Memory Graph debugging tool in Xcode and how you can use it to find and fix strong reference cycles in closures.

Using Container Views to Manage Complex Layouts

7 minutes

When you have a complex view controller view, sometimes it is helpful to break up the view into manageable chunks. In this video we will show how you can use container views to simplify the construction of certain layouts. After this video you will know when and how to use these container views in your applications.

Create a Welcome Message on Initial Launch

8 minutes

Performing tasks when an application is first launched is a common practice to give users important information about the application. In this video, we will discuss one technique for implementing first launch logic, as well as how to quickly test this code.

Dynamic Stack Views

9 minutes

UIStackViews are a relatively new addition to UIKit, appearing with iOS 9. They are quite useful because they eliminate the need for many Auto Layout constraints in common screen designs, making them easier to modify and maintain.

Dispatch Groups

4 minutes

We demonstrate using Dispatch Groups to rendezvous multiple simultaneous asynchronous tasks so that you can process all of their results at once, after the last one finishes.

Drawing Custom Controls

6 minutes

Sometimes your app design calls for a control design that isn't provided in UIKit. In this video, we draw one from scratch!

Optional Return Values vs. Throwing

8 minutes

This video Illustrates the differences between using optional return values or throwing errors for functions that can fail. The implementations are discussed and the pros and cons of each approach are discussed.

Touch ID and Face ID

6 minutes

Implementing Touch ID and Face ID using Apple's Local Authentication framework helps prevent unauthorized access to user's data. We will use the simulator to exercise different authentication scenarios. While the passcode on an iOS device helps prevent unauthorized access, Touch ID and Face ID let the user have a more secure complex pass code, while still making the device convenient to use.

Generational Analysis with the Allocations Instrument

9 minutes

Generational Analysis with the Allocations Instrument can be used to track down memory growth issues. We're going to be tracking down a memory management issue that caught us here at Big Nerd Ranch by surprise, and we'll show you what we did to solve it.

Automating Breakpoint Actions

7 minutes

While we all love Caveman Debugging, professional developers know their tools inside and out. In this screencast, debugging expert Mark Dalrymple will build on his previous screencast and show you some advanced debugging techniques in Xcode.

Creating App Icons for iOS

7 minutes

App Icons are the nice, neat little wrapper for your app. They’re usually the first thing that users see before using your app, and they’re a constant reminder to your users of your app and your brand. In this screencast, we will show you how to design an app icon that shows off your brand, and fits in nicely with other app icons on the Home Screen.

Display Step Count Using HealthKit

11 minutes

HealthKit provides iPhone users with a rich set of activity and health data that is available for applications to use. In this video, we will cover the basics of getting access to HealthKit and visualizing a users daily step count. After this video you will be able to query HealthKit data to provide your users with unique and interesting ways to see their activity and general health.

Writing Data to HealthKit

8 minutes

HealthKit provides a rich data store on iOS for tracking many types of data related to a users health. In this video, we will see how an application can write data to this store. After this video you can apply the same technique to allow users to save data from your application into HealthKit.

How Design Evolves within Apple's HIG: Adding a Popover with Photo Upload

8 minutes

Want to know how truly great designers work with the Apple HIG? Let’s watch along as we solve a challenging design issue and use the HIG to guide our decisions.

Handling Async Results

5 minutes

Throwing errors and completion handlers have pros and cons, and can’t be used in all situations. Here we examine some strategies for writing elegant async error-handling code with closures and associated-value enumerations.

Importing Models into CoreML

9 minutes

Apple released Core ML framework at WWDC 2017, which allowed developers to integrate machine learning into their iOS applications. In this screencast, we’ll show you how to import Keras image classification models into CoreML

Swift Assertions

9 minutes

In this screencast, we’ll learn how to use Swift’s assertion function to code defensively. By the end of this video, you’ll be able to use the assertion functions to help you write stronger, more robust code.

Xcode Inline Documentation

10 minutes

In this screencast, you'll earn how to document your Swift code using Xcode’s Markup support, and Jazzy to create an informative API.

Asynchronous Unit Testing

8 minutes

In this screencast, we’re going to look at writing unit tests for asynchronous behaviors in an app.

Adopting Configuration Settings Files in Xcode

11 minutes

In this screencast, we will explore how to use Xcode’s Configuration Settings Files - or xcconfig files - and improve our ability to tame the complexity of managing project settings.

Xcode Configurations vs. Schemes

10 minutes

Targets and configurations and schemes; Oh my! Confused by these Xcode concepts? Curious how using multiple build configurations coupled with schemes can avoid the multiple-target mess? If you’re wondering what this all means and how it can make your developer life better, this video is for you.

Using Generics in Swift

10 minutes

Generics allows for easy code reuse helping you write less code with fewer mistakes. In this video, we’ll learn how and when to use generics in your Swift apps by illustrating examples of problems that generics helps solve and we’ll build a simple, generic data structure.

Asynchronous UI testing

7 minutes

Xcode UI tests are asynchronous in that they simulate end user interaction with your application. In this screencast, learn how to write tests that exercise your app at the user interface level, handling asynchronous behaviors that take varying amounts of time.

Creating an App Widget

10 minutes

Mobile devices are all about convenience. Users want to get the information they need from your app quickly and easily. Apple has added the Today view with widgets for just this reason. Widgets provide app users with a way of quickly accessing important features and content of your apps without having to open each app one by one. In this screencast, we'll go over how to create a widget for your app.

Unit Testing: What, Why, and How

11 minutes

Whether you’ve never written a unit test, or are just looking for a way to add unit tests to some existing troublesome code, this video will walk you through the fundamentals of unit testing on iOS with realistic example code to help you learn how to write valuable and effective tests.

Keyboard Avoidance

9 minutes

Trouble getting layouts to fit the keyboard? In this screencast, we'll show you how to handle your layouts changing due to the keyboard. After this series, you will have several different tools for avoiding the keyboard.

Swift Attributes

5 minutes

You've seen these things in your code. @IBAction. @escaping. @objc. @autoclosure. But what are they? How do they differ from other Swift language features? If you want to understand what is going on under the hood, to know the implications of your code, follow along with Mark Dalrymple in this dive into Swift Attributes.

IBInspectable and IBDesignable

5 minutes

In this screencast, you will learn how to use @IBDesignable and @IBInspectable to configure your custom views using the storyboard.

Setting Up StackViews Inside ScrollViews

4 minutes

In this screencast, we’ll show you how to set up a StackView inside a ScrollView, this will help you to create views that have to show list of related data without use table views or collection views.

#iOS Screencasts

30 Results

Protocol Oriented Dependency Injection

8 minutes

Finding and Fixing Memory Issues

7 minutes

Using Container Views to Manage Complex Layouts

7 minutes

Create a Welcome Message on Initial Launch

8 minutes

Dynamic Stack Views

9 minutes

Dispatch Groups

4 minutes

We demonstrate using Dispatch Groups to rendezvous multiple simultaneous asynchronous tasks so that you can process all of their results at once, after the last one finishes.

Drawing Custom Controls

6 minutes

Sometimes your app design calls for a control design that isn't provided in UIKit. In this video, we draw one from scratch!

Optional Return Values vs. Throwing

8 minutes

Touch ID and Face ID

6 minutes

Generational Analysis with the Allocations Instrument

9 minutes

Automating Breakpoint Actions

7 minutes

Creating App Icons for iOS

7 minutes

Display Step Count Using HealthKit

11 minutes

Writing Data to HealthKit

8 minutes

How Design Evolves within Apple's HIG: Adding a Popover with Photo Upload

8 minutes

Want to know how truly great designers work with the Apple HIG? Let’s watch along as we solve a challenging design issue and use the HIG to guide our decisions.

Handling Async Results

5 minutes

Importing Models into CoreML

9 minutes

Swift Assertions

9 minutes

Xcode Inline Documentation

10 minutes

In this screencast, you'll earn how to document your Swift code using Xcode’s Markup support, and Jazzy to create an informative API.

Asynchronous Unit Testing

8 minutes

In this screencast, we’re going to look at writing unit tests for asynchronous behaviors in an app.

Adopting Configuration Settings Files in Xcode

11 minutes

In this screencast, we will explore how to use Xcode’s Configuration Settings Files - or xcconfig files - and improve our ability to tame the complexity of managing project settings.

Xcode Configurations vs. Schemes

10 minutes

Using Generics in Swift

10 minutes

Asynchronous UI testing

7 minutes

Creating an App Widget

10 minutes

Unit Testing: What, Why, and How

11 minutes

Keyboard Avoidance

9 minutes

Swift Attributes

5 minutes

IBInspectable and IBDesignable

5 minutes

In this screencast, you will learn how to use @IBDesignable and @IBInspectable to configure your custom views using the storyboard.

Setting Up StackViews Inside ScrollViews

4 minutes