“Would you agree to fly in a brand-new plane that has never been tested? For many of us, the answer would be an emphatic no.… Read More »12 Best Beta Test Management Software For 2021 by CX Lead
Sometimes you want to open your app from another app. Or maybe the user taps on a URL on their device and you want it… Read More »Opening an iOS app via URL
New SwiftUI book from Apress for App development
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… Read More »Thorough App Dev Cost Calculator
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… Read More »LinkedIn Learning Courses to Add to Your #SummerLearningList
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… Read More »How Much Does it Cost to Make An App in 2019? [Infographic]
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… Read More »5-Minute iOS Tips Video Series
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… Read More »AWS for Developers: AWS AppSync with GraphQL (online course)
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… Read More »Using AWS Amplify to Develop Apps with AppSync and More
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… Read More »Xcode 10 – How to Keep the Object Library Open
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… Read More »Learning Swift Higher Order Functions (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… Read More »Migrating your iOS App to the AWS Cloud (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… Read More »Learning Amazon Web Services (AWS) for Developers (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… Read More »Building iOS Apps with AWS Mobile (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… Read More »AWS API Gateway with HTTP, Lambda, DynamoDB, and iOS (Online Course)
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… Read More »AWS Tutorial: Adding User Authentication to a Mobile App
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,… Read More »UNT Tech Titans Timeline
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… Read More »Linkedin Learning: Business Tips featuring Bear Cahill
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… Read More »iOS Development with Firebase (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… Read More »iOS Unit Testing with Xcode (Online Course)
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… Read More »Wargames, Maths and Bears
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… Read More »iOS CoreBluetooth BLE 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! … Read More »iOS RESTful JSON API Development Online Course
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… Read More »Featured on LinkedIn Career Clinic: Developer Insights
iOS Network Development Using URLSession and Alamofire with: Bear Cahill …is now available on LinkedIn Learning A sample video introducing Alamofire: Introduction to Alamofire… Read More »iOS Network Development Using URLSession and Alamofire Online Course Release
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… Read More »Slide in Menu as an UIViewController Extension
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… Read More »Android/Java – SharedPreferences from anywhere in your App
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… Read More »iOS/Swift Validate Email and Password Format
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… Read More »UITextField Form with Previous/Next Keyboard Accessory Input View as Extension (iOS/Swift)
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… Read More »Display Alert Controller Popup from any UIViewController (iOS/Swift) Extension
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… Read More »Display a Loading/Waiting Activity Indicator (iOS/Swift)
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… Read More »White Board Animation – Tell Your Story
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… Read More »Stack Overflow Developer Survey Results 2017
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… Read More »Setting up Parse SDK with Android
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… Read More »What to Expect From Apple’s September 7 Event – Video
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… Read More »Swift: Handle Location and MapView Updates with Extension on UIViewController
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… Read More »Watch Apple’s Two-Hour 2016 WWDC Keynote in 7 Minutes – Mac Rumors
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… Read More »Swift: Compose Email (MFMailComposeViewController) as an Extension to UIViewController
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… Read More »App Development: Hire, Outsource or Freelance
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… Read More »Apple’s App Review Process Now Takes as Little as Two Days – Mac Rumors
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… Read More »HelloTechPros.com Podcast Interview Posted
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.… Read More »New Client App: Race to Read – Learning to Read
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… Read More »App Development Cost – What Does it Cost?
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… Read More »How Much Time and Money It Takes to Develop a Mobile App
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… Read More »Xcode 7 Invalid Bundle – iPad Multitasking Required Orientations
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… Read More »iOS 9 Hidden Features: Settings Search, Selfie Folder, Home Sharing for Music, Go Back to App, and More – Mac Rumors
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… Read More »iOS 9.0 – Use HTTPS Exclusively for App Transport Security
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… Read More »CloudKit – NSHipster
There were several new big announcements at the apple ‘hey siri’ events. iPhone 6s with 3D touch, tvOS for the new Apple TV and… Read More »Mac Rumors: ‘Hey Siri’ Event Roundup: iPhone 6s, iPad Pro, New Apple TV and More
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… Read More »Mac Rumors: ‘iPhone 7’ Thickness Likely to Approach iPod Touch