SwiftUI Book for App UI Design
New SwiftUI book from Apress for App development
Author: admin
Thorough App Dev Cost Calculator
I got an email today from Taylor Moore at appdevelopmentcost.com talking about their calculator. I checked it out and really like it. It takes into consideration things that clients often don’t realize will affect the cost of development. Items like client availability, availability for information/questions, security and project management. As apps become more sophisticated, it’s Read more about Thorough App Dev Cost Calculator[…]
LinkedIn Learning Courses to Add to Your #SummerLearningList
Linkedin decided to put together a list of the fastest growing segment courses for their Summer Learning List. It’s a combination of tech, branding, personal growth and more! Check out #7 for a course from your favorite developer! 😉
How Much Does it Cost to Make An App in 2019? [Infographic]
Here’s a new article on cost of development. I tend to cost less (less overhead, etc.) but who knows… 🙂 Here’s some content and I recommend the article… Check out another app dev cost calculator here. How Much Does it Cost to Make An App in 2019? The common and straightforward way to estimate app Read more about How Much Does it Cost to Make An App in 2019? [Infographic][…]
5-Minute iOS Tips Video Series
Check out the playlist for the “5-Minute iOS Tips” I did for Accelebrate – there will be 4 in the series as of now. The related code files are here. In this video I show you how to use shorthand argument names in your Swift Higher Order Functions. Shorthand argument names help you make Read more about 5-Minute iOS Tips Video Series[…]
AWS for Developers: AWS AppSync with GraphQL (online course)
As mobile apps mature, users have grown to expect data to be available across devices—even offline—as well as real-time updates. AWS AppSync helps with both of these while also using GraphQL for the API. In this course, discover how to leverage AWS AppSync and GraphQL in your mobile app development workflow. Instructor Bear Cahill takes Read more about AWS for Developers: AWS AppSync with GraphQL (online course)[…]
Using AWS Amplify to Develop Apps with AppSync and More
Developing mobile apps is challenging enough without needing to learn and develop the back end on the server. Amazon Web Services (AWS) provides many of the services you need—but navigating AWS can be overwhelming. AWS Amplify brings the work to you, the developer, in the Amplify command-line interface (CLI), which uses intelligent defaults and does Read more about Using AWS Amplify to Develop Apps with AppSync and More[…]
Xcode 10 – How to Keep the Object Library Open
Like many others, when I upgraded to Xcode 10, I wasn’t a fan of the missing Object Library. Once I found it, I knew I’d learn that short cut really fast: ⇧⌘L But it was still annoying that it disappeared after the put something in Interface Builder. Then once, by accident, I was able Read more about Xcode 10 – How to Keep the Object Library Open[…]
Learning Swift Higher Order Functions (Online Course)
Master and harness the full power of Swift with Higher Order Functions. Take your iOS development to Black Belt level with this online course. Learning Swift Higher Order Functions @Lynda    @Linkedin Learning By taking the time to truly grasp higher-order functions, you’ll go from merely understanding the Swift language to mastering it. In this Read more about Learning Swift Higher Order Functions (Online Course)[…]
Migrating your iOS App to the AWS Cloud (online course)
Migrating your iOS App to the AWS Cloud More apps are requiring server-side storage and functionality, but custom web resources can be expensive to develop and maintain. Using Amazon Web Services (AWS) for migration can make the process easier without being expensive. In this course, explore the resources available and learn about each step involved Read more about Migrating your iOS App to the AWS Cloud (online course)[…]
Learning Amazon Web Services (AWS) for Developers (Online Course)
I recently developed this course for Linkedin Learning/Lynda.com to help people getting started with AWS. The idea is that there are many courses and certifications but many of them just cover a slice of AWS. This is meant to cover the topics in the AWS Associate-Developer certification. Not that you can pass the test after Read more about Learning Amazon Web Services (AWS) for Developers (Online Course)[…]
Building iOS Apps with AWS Mobile (Online Course)
Building iOS Apps with AWS Mobile Amazon Web Services (AWS) provides many services and features for developing server side functionality and resources. This can be particularly helpful and surprisingly easy for adding server side aspects to a mobile app. Using the Mobile Hub, AWS can be used to add user authentication (including Google, Facebook and Read more about Building iOS Apps with AWS Mobile (Online Course)[…]
AWS API Gateway with HTTP, Lambda, DynamoDB, and iOS (Online Course)
AWS API Gateway with HTTP, Lambda, DynamoDB, and iOS AWS can be used to create a variety of features on the server side. Many of those can work together and create an entire online set of storage and functionality with little-to-no code. Check out this course and see how Lambda (serverless functions) can be Read more about AWS API Gateway with HTTP, Lambda, DynamoDB, and iOS (Online Course)[…]
AWS Tutorial: Adding User Authentication to a Mobile App
Adding user authentication with Amazon Web Services (AWS) can be pretty easy. You’ll need an AWS account and not much more. The AWS Mobile Hub steps you through the process of creating a Project. Projects have Apps (e.g., iOS, Android, etc.). AWS Tutorial at Accelebrate.com For each app, you can add Backend Read more about AWS Tutorial: Adding User Authentication to a Mobile App[…]
UNT Tech Titans Timeline
As an alum of UNT, I was asked for some input on a recently article timeline. It was some basic questions about timing, business, advice, etc. It marks my 10 years as solo/freelance/entrepreneur. I’ve enjoyed much of the last 10 years, but also it’s been a lot of work. I was just thinking the other Read more about UNT Tech Titans Timeline[…]
Linkedin Learning: Business Tips featuring Bear Cahill
This is an excerpt from an interview I did at Linkedin Learning while there recording my online courses. I enjoyed the process and it’s great to see the outcome in these various complications. My part starts at 3:42 but I encourage you to watch all four of us and our thoughts on running Read more about Linkedin Learning: Business Tips featuring Bear Cahill[…]
iOS Development with Firebase (Online Course)
Firebase is popular software suite that enable mobile developers to quickly and easily add server-side functionality to apps: authentication, data storage, and more. This course explores some of the most useful services in the Firebase SDK for iOS app development. Instructor Bear Cahill starts by showing how to set up a project in the Firebase Read more about iOS Development with Firebase (Online Course)[…]
iOS Unit Testing with Xcode (Online Course)
Unit Testing for iOS Developers Unit testing is a useful method for verifying functionality—both before and after development—and can help you catch and fix bugs. Xcode can automatically add unit test support to your projects. In this course, explore the fundamentals of unit tests in Xcode and discover how to add unit tests to Read more about iOS Unit Testing with Xcode (Online Course)[…]
Wargames, Maths and Bears
When I went to record my first course with Lynda.com and Linkedin Learning, we did a “live action” interview. They asked a variety of different questions including how I got started, challenges along the way and how I overcame them. Sometimes I forget the early parts of the story: my first computer, inspirations and obstacles and Read more about Wargames, Maths and Bears[…]
iOS CoreBluetooth BLE Online Course
Adding Bluetooth LE functionality to your app can be intimidating. Dealing with hardware connections is always a bit of a mystery. CoreBluetooth really helps simplify the details and the heavy lifting. It boils down the connection and communication to something more familiar to most developers. The course: Â @Linkedin Learning However, there are still a lot Read more about iOS CoreBluetooth BLE Online Course[…]
iOS RESTful JSON API Development Online Course
My latest online course is released: iOS RESTful JSON API development including the Codable Protocol @Linkedin Learning Thanks to my producer Audrey Tsaima! One of my favorite things in Swift: Codable protocol – here’s a sample video: Decodable protocol: JSON to object from iOS App Development: RESTful Web Services by Bear Cahill
Featured on LinkedIn Career Clinic: Developer Insights
Bear is featured on the latest Linkedin Career Clinic: Developer Insights video. The video features a handful of content authors for Linkedin Learning on the topic of clean code practices. Being passionate about your work is always plus and hopefully a goal. Even though development is often as much math and science as anything else, Read more about Featured on LinkedIn Career Clinic: Developer Insights[…]
iOS Network Development Using URLSession and Alamofire Online Course Release
iOS Network Development Using URLSession and Alamofire with: Bear Cahill …is now available on LinkedIn Learning A sample video introducing Alamofire: Introduction to Alamofire from iOS Network Development Using URLSession and Alamofire by Bear Cahill Course Description: Networking is a common component of modern mobile apps, necessary for authenticating user accounts, fetching data, Read more about iOS Network Development Using URLSession and Alamofire Online Course Release[…]
Slide in Menu as an UIViewController Extension
We often need to add a slide in menu to a UIViewController. It’s no easy task in Interface Builder. Here’s how to make one in code… Slide in Menu as an UIViewController Extension First create a new file called MenuMgr.swift in your project. Declare the class… (link to the code at the bottom) Read more about Slide in Menu as an UIViewController Extension[…]
Android/Java – SharedPreferences from anywhere in your App
Coming from iOS, I’m used to having access to UserDefaults anywhere in my code for storing user settings and such. Android requires a context to access SharedPreferences – pain. SharedPreferences from anywhere in your App So I created a Constants class that takes a context, creates a singleton and then allows for various Read more about Android/Java – SharedPreferences from anywhere in your App[…]
iOS/Swift Validate Email and Password Format
Here’s a couple of quick functions I use in a few forms in different projects. They’re pretty common and can be found other places. I based these on various things I’ve found online. So, like most things, I can’t take 100% credit but we all learned things from somewhere. The first is an email validator. Read more about iOS/Swift Validate Email and Password Format[…]
UITextField Form with Previous/Next Keyboard Accessory Input View as Extension (iOS/Swift)
UPDATED: Now use a scrollview instead of moving the view around. See the bottom of this post. Here’s how to easily, quickly create a manager for a form of UITextFields including Previous/Next buttons on a toolbar above the keyboard. It uses an extension on the UIViewController so it’s non-intrusive. All you have to do is Read more about UITextField Form with Previous/Next Keyboard Accessory Input View as Extension (iOS/Swift)[…]
Display Alert Controller Popup from any UIViewController (iOS/Swift) Extension
Many apps use the UIAlertController to display information the user for them to acknowledge with an “OK” button. A UIViewController needs to present the alert controller to the user so I wrote an extension on UIViewController to handle this. This is just a simple alert to the user with an “OK” button that dismisses the Read more about Display Alert Controller Popup from any UIViewController (iOS/Swift) Extension[…]
Display a Loading/Waiting Activity Indicator (iOS/Swift)
Oftentimes, you need to display an activity indicator to the user when fetching or loading data. It’s best to keep this in one place for ease of use. Also, it’s best to make sure this is done on the main/UI thread. Loading Screen in Swift Here’s a way to do it Read more about Display a Loading/Waiting Activity Indicator (iOS/Swift)[…]
White Board Animation – Tell Your Story
Whiteboard Animations Are Like Fireworks by guest Rhett Hulcy Remember running your first lemonade stand? It was fun! It taught you about handling money, service with a smile, and to only use half the container of lemonade mix per pitcher instead of the whole thing! But what you didn’t learn was something that we as Read more about White Board Animation – Tell Your Story[…]
Stack Overflow Developer Survey Results 2017
The stack overflow Developer Survey results for 2017 proved fairly interesting, somewhat confirming, slight surprising and a semi-overwhelming. You can read the results yourself to decide what’s interesting. There’s a few things I felt noteworthy to me… FREEDOM! When I went solo I had a few intentions: no physical product, no physical location, no Read more about Stack Overflow Developer Survey Results 2017[…]
Setting up Parse SDK with Android
So now that Parse.com is gone, there’s still the option of using your own server w/ their open-source server code. You can find info on setting that up on their site linked above. But this post is about setting up your Android Studio project w/ the Parse SDK. If you don’t have it, Read more about Setting up Parse SDK with Android[…]
What to Expect From Apple’s September 7 Event – Video
Source: What to Expect From Apple’s September 7 Event We’re just a few days away from Apple’s annual fall event, where we expect to see the launch of the new iPhone 7 and iPhone 7 Plus, a second-generation Apple Watch with new bands, and refreshed Beats products. We may also see the debut of Apple’s rumored wireless “AirPods” earbuds, Read more about What to Expect From Apple’s September 7 Event – Video[…]
Swift: Handle Location and MapView Updates with Extension on UIViewController
As I mentioned in another extension post, I dig them…when they make sense. I tend to do simple map stuff a good bit and wanted to write an extension for it. Swift: Handle Location and MapView Updates with Extension on UIViewController What it does: Requests authorization for user location Centers the map on the user Read more about Swift: Handle Location and MapView Updates with Extension on UIViewController[…]
Watch Apple’s Two-Hour 2016 WWDC Keynote in 7 Minutes – Mac Rumors
It’s even less time if you watch it at 1.5 speed… Apple today unveiled new versions of iOS, watchOS, tvOS, and macOS, all of which are jam-packed with new features. iOS in particular was referred to as Apple’s biggest iOS update ever, with major improvements to Messages, Apple Music, Siri, and tons of other minor Read more about Watch Apple’s Two-Hour 2016 WWDC Keynote in 7 Minutes – Mac Rumors[…]
Swift: Compose Email (MFMailComposeViewController) as an Extension to UIViewController
UPDATED for Swift 4… I’m a fan of extensions – but hopefully only when it makes sense. I wanted to write an extension on UIViewController to allow me to send email from any subclass… Swift: Compose Email (MFMailComposeViewController) as an Extension to UIViewController Steps… Add a new file (⌘-N) and select Read more about Swift: Compose Email (MFMailComposeViewController) as an Extension to UIViewController[…]
App Development: Hire, Outsource or Freelance
There’s a not of pros and cons to the different approaches to getting an app developed. But first there’s apps and then there’s apps. App Development: Hire, Outsource or Freelance Does your “app” calculate tips? That’s pretty basic. But if you’re building “the next Facebook” it’s really more of a company you’re building. If you’re Read more about App Development: Hire, Outsource or Freelance[…]
Apple’s App Review Process Now Takes as Little as Two Days – Mac Rumors
Good news… Apple’s app review process has become significantly faster during the first five months of 2016, according to AppReviewTimes.com, a website that tracks average App Store review times for both the iOS and Mac App Store using data crowdsourced from developers on both platforms. Source: Apple’s App Review Process Now Takes as Little as Read more about Apple’s App Review Process Now Takes as Little as Two Days – Mac Rumors[…]
HelloTechPros.com Podcast Interview Posted
I did an interview recently with hellotechpros.com podcast. Their “Saturday” topic is on Entrepreneurship. From the site… If you’re painting a picture of a sunset and someone tells you to add a dolphin, does that person’s idea represent your vision? If not, Bear Cahill recommends that you thank them for the input and move on. Entrepreneurs have Read more about HelloTechPros.com Podcast Interview Posted[…]
New Client App: Race to Read – Learning to Read
A new client app is in the iOS App Store. Race to Read from Speech Pathology Apps helps kids learn to read in a fun way. They may not even realize they’re learning to read! Each child can pick their own car and it retains their progress for teachers and parents to review and modify. Each Read more about New Client App: Race to Read – Learning to Read[…]
App Development Cost – What Does it Cost?
The all important question everyone has to ask is: how much will it cost? App development cost varies based on several factors and can range widely. App Development Cost Of course the requirements of the app drive the app development cost. However, that’s not very clear since some requirements are easy/cheap and some are very Read more about App Development Cost – What Does it Cost?[…]
How Much Time and Money It Takes to Develop a Mobile App
Many mobile apps are so simple you might be tricked into thinking they took almost no time or effort to create. This infographic, outlining the mobile app development process, however, tells us that there’s a lot more to it.The graphic comes from app development company NineHertz. It says that it takes almost 18 weeks to Read more about How Much Time and Money It Takes to Develop a Mobile App[…]
Xcode 7 Invalid Bundle – iPad Multitasking Required Orientations
I started getting the Xcode 7 Invalid Bundle error: ERROR ITMS-90474: “Bundle Invalid. iPad Multitasking support requires there orientations:’UIInterfaceOrientationPortrait,UIIinterfaceOrientationPortraitUpsideDown,UIInterfaceOrientationLandscapeLeft,UIInterfaceOrientationLandscapeRight’. Found ‘UIInterfaceOrientationPortrait’ in bundle. Xcode 7 Invalid Bundle Fortunately the fix is easy: Select your project Select the General Tab Select your Target Check the box titled “Requires full screen” Done. More:Â xcode submit invalid bundle ipad Read more about Xcode 7 Invalid Bundle – iPad Multitasking Required Orientations[…]
iOS 9 Hidden Features: Settings Search, Selfie Folder, Home Sharing for Music, Go Back to App, and More – Mac Rumors
From MacRumors.com… There are quite a few major changes in iOS 9, like split-screen multitasking for the iPad, improvements to search and Siri, under-the-hood performance boosts, and revamped apps, but there are also dozens if not hundreds of lesser-known tweaks and refinements that make the iOS 9 experience better than ever before. Weve had a Read more about iOS 9 Hidden Features: Settings Search, Selfie Folder, Home Sharing for Music, Go Back to App, and More – Mac Rumors[…]
iOS 9.0 – Use HTTPS Exclusively for App Transport Security
Apple is “strongly” suggesting you use HTTPS only going forward with iOS 9 for App Transport Security. When Apple tends to make something a default (even if they allow exceptions) it usually means it will be required later. Hint: Change. App Transport Security App Transport Security (ATS) enforces best practices in the secure connections between an Read more about iOS 9.0 – Use HTTPS Exclusively for App Transport Security[…]
CloudKit – NSHipster
Perhaps you’ve heard of iCloud Drive before—iCloud Drive is where we can store our user’s data and files for easy access from other devices. CloudKit is the framework that helps us do this easily in the apps we create. CloudKit – NSHipster Source: CloudKit – NSHipster
Mac Rumors: ‘Hey Siri’ Event Roundup: iPhone 6s, iPad Pro, New Apple TV and More
There were several new big announcements at the apple ‘hey siri’ events. iPhone 6s with 3D touch, tvOS for the new Apple TV and the large iPad Pro were the highlights… Hey Siri Source: Mac Rumors: Apple Mac iOS Rumors and News You Care About Apple was on stage at the Bill Graham Civic Read more about Mac Rumors: ‘Hey Siri’ Event Roundup: iPhone 6s, iPad Pro, New Apple TV and More[…]
Mac Rumors: ‘iPhone 7’ Thickness Likely to Approach iPod Touch
KGI Securities analyst Ming-Chi Kuo has issued a new report that suggests next year’s “iPhone 7” could be Apple’s thinnest smartphone yet, with a thickness of somewhere between 6.0mm and 6.5mm, which Kuo mentions is a near similar measurement of the current iPod touch’s 6.1mm. As a comparison, the current model of the iPhone 6 Read more about Mac Rumors: ‘iPhone 7’ Thickness Likely to Approach iPod Touch[…]
Create A Subfolder in Yahoo Mail – iOS
I use email for everything and have lots of folders. But it’s was to figure out how to create a subfolder in Yahoo mail. I know, I know the first thing is to stop using Yahoo, but I’ve been using it since ’98 and my attempts to change have been painful… Create A Subfolder Read more about Create A Subfolder in Yahoo Mail – iOS[…]
iOS Icon Resolutions Creator Script
IÂ saw a script online somewhere (stackoverflow?) a while back that created some iOS icon resolutions. I updated it and found it very useful. iOS Icon Resolutions Create icon.sh in a directory and post the code below (don’t forget to chmod 777 the file). Then put the icon (1024×1024 png) in the same directory and run Read more about iOS Icon Resolutions Creator Script[…]