Showing posts with label iPhone. Show all posts
Showing posts with label iPhone. Show all posts

Thursday, August 6, 2015

iOS9 Day-by-Day :: Day 2 :: UI Testing

Automated User Interface Testing is a valuable tool when developing any software application. It can detect problems with your app quickly, and a successful test suite run can provide you with confidence before a release. On the iOS platform, this is currently done using UIAutomation, with tests written in JavaScript. This involves opening up a separate app, Instruments, and creating and running scripts. The workflow is painfully slow and takes a long time to get used to.


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iOS9 Day-by-Day :: Day 5 :: Xcode Code Coverage Tools

Code coverage is a tool that helps you to measure the value of your unit tests. High levels of code coverage give you confidence in your tests and indicate that your application has been more thoroughly tested. You could have thousands of tests, but if they only test one of your many functions, then your unit test suite isn't that valuable at all! There's no ideal code coverage percentage that you should aim for. This will vary drastically depending your project. If your projects has a lot of visual components that you can't test, then the target figure will be a lot lower than if you're putting together a data processing framework, for example.


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Tuesday, July 7, 2015

Physics Joints in Unity 2D

The cross-platform game engine Unity has powerful support for creating 2D and 3D games. It's a great choice for aspiring game developers, since it works for most mobile, desktop and console platforms, and even better, it's free to use for lower-revenue developers and studios. One of the key components of Unity are physics joints, which let you create various connections between objects in Unity. Using joints, you can describe a connection between two objects, which means you can simulate the physics of almost any multi-part object you can think of, including doors, sliding platforms, chains or even wrecking balls! :] This tutorial will focus on using joints in Unity 2D, although Unity supports joints in its 3D engine as well.


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Thursday, July 2, 2015

Create a Native Apple Watch App for watchOS 2

At WWDC 2015, Apple announced the first major update to their Apple Watch platform, watchOS 2. Along with many new features and improvements, the most important aspect of this update for developers is the ability to create native Apple Watch apps. These native apps perform better and give developers access to new features, including the digital crown, microphone, and health sensors. In this tutorial, I will show you how to create a native WatchKit application and briefly outline some of the new APIs available in watchOS 2. I will also show you how to upgrade an existing non-native watchOS 1 app to a native watchOS 2 app.


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iOS 9: Staying Organized with Storyboard References

Even though storyboards have been around since iOS 5, many developers are reluctant to use them in their projects. A typical remark is that storyboards are great for small projects, but fall short for larger projects. Apple has taken this feedback to heart and resolved many common problems by introducing storyboard references. In this tutorial, I will show you what storyboard references are and how they can help you break down your project's user interfaces into manageable pieces.


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Wednesday, July 1, 2015

Objective-C WKWebView to JavaScript and Back

Since WKWebView doesn't yet show up as a drag-and-droppable view in Interface Builder, and other IB work-arounds cause the app to crash, a WKWebView instance is created in the ViewController's viewDidLoad method. The WKWebView instance is then sized to fill the entire view of the device. This can cause usability problems since the WKWebView's content now overlaps the header bar. If I was creating an app to ship, I would use Interface Builder to add a UIView, create an IBOutlet to that view, and size the UIView to fit the display portion of the screen. I would then add the WKWebView to the UIView I added using Interface Builder.


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Calling Objective-C Methods From JavaScript in a UIWebView

The East Coast Time Line app I've just finished building includes a 360-degree virtual reality panorama section, which puts you "inside" several of the coaches in the National Railway Museum's collection. It's created with the KRPano plugin that uses a set of tiles to build an HTML5 plugin that can be zoomed and rotated, either manually or with the aid of the device's gyroscope.


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Interfacing with a UIWebView from a UIViewController

If you are into iOS development chances are that you have already discovered (or been told) that UIWebView is a powerfully beast that can be used from more the displaying remote web content. In past projects I've relied heavily on UIWebView to display rich content format by using a local HTML file included in the main bundle (with external CSS and JS files also there). Doing so is straightforward, but sooner than later you might run into the issue of having to interface with what's running inside the UIWebView from Objective-C or vice-versa. Luckily both are easy to implement and add a extra layer of power to using UIWebView as a rich content display.


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Monday, June 29, 2015

UITextField docked like iOS Messenger

A while ago I was searching for code on how to create a textbar that is docked at the bottom of the screen and moves with the keyboard when the textbox is selected. Very similar behavior to what is in iOS Messenger.


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Input Accessory View (How to add extra controls above keyboard)

When building iPhone applications that support or provide text input, it's often necessary to create some extra buttons (or other controls) beyond the ones provided by the default keyboard interface. Those buttons should be created for specific operations needed by your application, such as moving to the next or previous text field, make the keyboard disappear e.t.c. To understand what exactly this is all about, just see what's happening when you are using the Safari browser and you type username/password values to login in your e-mail account. Just right above the keyboard, there are two buttons that allow you to move to the next or previous field and a third button that allows you to close the keyboard and see the whole browser again.


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iOS SDK: Creating a Custom Text Input View

Developing an amazing application is not a simple job. Traditionally, one of the most difficult aspects of doing so has been creating rich, compelling interfaces. This tutorial will teach you how to build a custom text input view that will help make your own apps shine!


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Friday, June 26, 2015

Importing & Exporting Documents in iOS

One of the common tasks that an iOS developer has to do is to import or export documents from his iOS application. For example, suppose you are developing a document reader and you want to allow the user to import documents into your application so that it can be read offline. Also, your reader might also support the exporting of documents so that other applications can make use of the document.


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Thursday, June 25, 2015

Create a Cloud Backend for Your iOS App Using Parse

vast majority of the apps you see on the store today are being powered by the cloud. Instagram is storing photos in the cloud. Facebook is managing all your data there. So is Reddit, Twitter, Amazon, and any other app that you can think of. That's probably why you're here. You've discovered that to move forward you need to learn how to build a backend that can keeps data synced across devices.


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10 Actionable Performance Tips To Speed Up Your Table View

If you have ever dealt with a collection view you can already sense the value of this post. Speed can quickly become an issue if you're not paying attention. The result is that your customers will let you know in a heartbeat–so will you. You immediately know when a scrollview is not as fast as other apps on your device. Table views are one of the first things every junior iOS developer uses. Feeling lost can happen quickly. This post will dive into a few things that you can look for.


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How To Start Unit Testing in Swift

Last week I wrote about code quality and one area I covered was unit testing. Unit testing is the process of validating that pieces of your code operate as you expect. As you can imagine, this is a very useful aid in software development. If you're only using your eyes to determine if your app is functioning you're leaning on hope. The hope, being, that the house doesn't come crumbling down since you can't confidently say that everything works. The moment you ship the app to the store is one filled with anxiety. Undoubtably you discover a soul-crushing bug(s) that you scramble to push to the store, waiting on the Apple overlords.


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How To Manage Dependencies with CocoaPods

There are great open source projects out there maintained by dedicated individuals and companies. One big problem you may face when bringing these projects into yours is managing them. When you bring in a 3rd party library you inherit a certain amount of risk. The biggest, of which, is that you can bring something in that could break your app. You download a new update, add files to your project, configure build settings, run your app, and then discover nothing works. You then panic, trace your steps backwards, and finally revert to the previous version… if you can remember which version you were using.


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Learn How To Create An iOS App Using HomeKit

The project was incredibly interesting. All of a sudden I had to build an app that interfaced with a piece of hardware that triggered set events. Those events would be customizable through the app. It's one thing to build an app just for the device. To create an app that interfaced with an external device was a welcome change of scenery.


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What You Need To Know To Start Learning How To Code

There is something very special about creating an experience that another human can be entertained by or that makes their life a little easier . The desire to learn how to code came from a deeper desire to be in full control. Instead of relying on others to make things happen I would have the ability to get the ball rolling. I knew from an early age that this would become a huge asset as I began creating a company.


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13 Xcode Tips That Will Help You Conquer Xcode

What is less-than-comforting—especially to newcomers—is the sheer amount of things that Xcode can help us do. To those new in this area Xcode can feel incredibly overwhelming. To those with years of Xcode experience still find themselves learning little details that improve their productivity. My message to those new to this space is to not drown yourself out by learning everything there is to know about Xcode. Focus on the important elements that matter today and let your experience guide you to new areas of the tool.


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Let’s Walk Through The Apple TestFlight Experience

While there are other great alternatives, like Hockey App, it isn't a perfect solution for those who can't add a recurring expense to their development cycle. That's just not an option for plenty of people out there. While there are a few other free alternatives, I've really enjoyed my time with Beta by Crashlytics. That said, Apple will shut down the old TestFlight and encourage everyone to move to the new experience under iTunes Connect on February 26th, 2015. To prepare you for that this post will dive into the TestFlight experience so you can determine if it is something you'd like to pursue, or if Crashlytics or Hockey App is where you should go. By the time you finish this article you'll have a pretty good idea which road to take.


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