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Setting Up Your Android Development Environment : Hello, Android
Several components are needed to build an Android application. Fortunately, the Eclipse IDE with the Android plug-in automates a lot of the work needed to create and maintain these components.
Setting Up Your Android Development Environment : Setting Up Your Development Environment
Android applications, like most mobile phone applications, are developed in a host-target development environment. In other words, you develop your application on a host computer (where resources are abundant) and download it to a target mobile phone for testing and ultimate use.
Symbian OS : Error-Handling Strategies - Escalate Errors
Most well-written software is layered so that high-level abstractions depend on low-level abstractions. For instance, a browser interacts with an end user through its UI code at the highest levels of abstraction.
Symbian OS : Error-Handling Strategies - Fail Fast
Detecting faults in your software should be done as early as possible during the development process since it can be over 10 times cheaper to detect them in the early stages of development compared to finding them once your product has shipped .
BlackBerry Tablet Applications : Exploring the APIs - GPS
GPS stands for Global Positioning System. GPS is a space-based satellite navigation system that sends reliable location information to your handheld device.
BlackBerry Tablet Applications : Exploring the APIs - Accelerometer
The accelerometer is a device that measures the speed or g-forces created when a device accelerates across multiple planes. The faster the device is moved through space, the higher the readings will be across the x, y, and z axes.
iPhone Developer : Working with View Controllers - Remembering Tab State
On the iPhone, persistence is golden. When starting or resuming your application from termination or interruption, always return users to a state that closely matches where they left off.
iPhone Developer : Working with View Controllers - Tab Bars
The UITabBarController class allows users to move between multiple view controllers and to customize the bar at the bottom of the screen. This is best seen in the YouTube and iPod applications. Both offer one-tap access to different views, and both offer a More button leading to user selection and editing of the bottom bar.
iPhone Developer : Working with View Controllers - Presenting a Custom Modal Information View
Modal view controllers slide onscreen without being part of your standard view controller stack. Modal views are useful for picking data or presenting information, tasks that might not match well to your normal hierarchy.
Windows Phone 8 : Writing Your First Phone Application - Adding Code (part 3) - Using Touch
Even though the touch interactions do fire mouse events, there are other events that allow you to design your application for touch. Since touch is so important to how applications on the phone work, this first application should give you a taste of that experience.
Windows Phone 8 : Writing Your First Phone Application - Adding Code (part 2) - Debugging in the Emulator, Debugging with a Device
If you have a phone with which you want to do your development, you will want to be able to deploy and debug directly on the phone itself. First you need to connect your phone to your development machine. All you need to do is connect your phone to your computer by a USB cable.
Windows Phone 8 : Writing Your First Phone Application - Adding Code (part 1) - Working with Events
This first Windows Phone application is not going to do much, but we should get started and make something happen with the phone. Since this is your first Windows Phone application, let’s not pretend it is a desktop application but instead show off some of the touch capabilities.
Windows Phone 8 : Designing with Blend
To offering an Express version of Visual Studio the Windows Phone SDK includes an Express version of Expression Blend specifically for use in developing phone applications.
Iphone Application : Implementing Location Services - Creating a Location-Aware Application (part 2) - Implementing the Location Manager Delegate
Location services work in the iOS 4 iPhone Simulator! The simulator uses Snow Leopard’s location services to determine where your computer is sitting and then passes that information to your applications.
Iphone Application : Implementing Location Services - Creating a Location-Aware Application (part 1)
The application will be created in two parts: The first introduces Core Location and displays the number of miles from the current location to Cupertino. In the second section, we use the iPhone’s compass to display an arrow that points users in the right direction, should they get off track.
Iphone Application : Implementing Location Services - Understanding Core Location
Core Location is a framework in the iOS SDK that provides the location of the device. Depending on the iPhone and its current state (within cell service, inside a building, and so forth), any of three technologies can be used: GPS, cellular, or WiFi. GPS is the most accurate of these technologies and will be used first by Core Location if GPS hardware is present.
Windows Phone 8 : Creating a New Project (part 2) - XAML
In Silverlight, development is really split between the design and the code. The design is accomplished using a markup language called XAML (rhymes with camel). XAML (or eXtensible Application Markup Language) is an XML-based language for representing the look and feel of your applications.
Windows Phone 8 : Creating a New Project (part 1) - Visual Studio
When you install the Windows Phone SDK you get a version of Visual Studio 2010 Express that is used to create Windows Phone applications only. When you launch Visual Studio 2012 Express you will see the main window of the application, as shown in Figure 1.
Developing BlackBerry Tablet Applications : Permissions and Configuration Settings
When creating a new Flex Mobile application, there are a few additional settings you can choose to configure. These include Automatically reorient, Full screen, and Automatically scale application for different screen densities.
Developing BlackBerry Tablet Applications : Permissions
The AIR 2.6 release includes the permission options outlined in the following list; they can be selected within the new Flex Mobile project interface of Flash Builder 4.5 (see Figure 1).
Introducing Windows Phone 8 : The Marketplace
In this post-iPhone world, it’s all about the apps. Unlike earlier iterations of Microsoft phone technologies (e.g., Windows Mobile), all software will have to go through Microsoft to get installed on the device.
Introducing Windows Phone 8 : Application Lifecycle, Driving Your Development with Services, Live Tiles
The center of the entire user interface paradigm in Windows Phone is the notion of the Start screen. The hub is the main screen that users will be presented when they boot up or turn on the phone.
Introducing Windows Phone 8 : Input Patterns
You are the developer. You want users to want to use your applications. That means you must deal with the different ways the phone can accept user input. Developing for the Web or desktop means you are primarily dealing with designing for the keyboard and mouse.
Iphone Application : Using Address Book, Email, and Maps (part 4) - Using the Message UI
In our example of using the Message UI framework, we allow users to email a buddy by pressing the Send Mail button. We will populate the To field of the email with the address that we located in the address book.
Iphone Application : Using Address Book, Email, and Maps (part 3) - Using a Map Object
You added a MKMapView to your user interface and configured it to show the current location of the device. If you attempted to build and run the app, however, you’ll have noticed that it fails immediately.
Iphone Application : Using Address Book, Email, and Maps (part 2) - Accessing the Address Book
There are two parts to accessing the address book: displaying a view that allows the user to choose a contact (an instance of the class ABPeoplePickerNavigationController) and reading the data that corresponds to that contact. Two steps...two frameworks that we need to add.
Iphone Application : Using Address Book, Email, and Maps (part 1)
In this article, we will allow users to pick a contact as their best friend from their address book. After they have picked their best friend, we will retrieve information from the address book about their friend and display it nicely on the screen—including their name, photo, and email address.
Iphone Application : Extending Application Integration
The address book is a shared database of contact information that is available to any iPhone application. Having a common, shared set of contact information provides a better experience for the user than if every application manages its own separate list of contacts.
Introducing Windows Phone 8 : Phone Specifications
For Windows Phone, the stakes were high in terms of Microsoft’s ability to not only create the software but also encourage its partners to build the phone.
Introducing Windows Phone 8 : A Different Kind of Phone
When Microsoft originally unveiled Windows Phone many skeptics expected the phone would simply try to play catch-up with Apple’s and Google’s offerings. Microsoft had other plans, though.
 
 
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