Tutorials,Articles,Algorithms,Tips,Examples about Mobile

Change page: < 1 2 3 4 5 6 7 8 > | Displaying page 1 of 8, items 1 to 40 of 314.

# BlackBerry Java Application Development : Networking - HTTP Basics

The BlackBerry SDK does provide good support for networking, but the support is primitive. Not only are there a myriad of ways to connect to a server in order to make a request, and that we as developers are left to account for them all, but we must also have a fairly detailed understanding of the underlying protocol.

Mobile Phone Game Programming : Analyzing 2D Sprite Animation

The most simple animation technique is frame-based animation, which finds a lot of usage in nongaming animations. Frame-based animation involves simulating movement by displaying a sequence of pregenerated, static frame images.

Mobile Phone Game Programming : Understanding Animation

Most of the techniques used in computer animation have been borrowed or based on traditional animation techniques developed for animated films. The classic approach to handling traditional animation is to draw a background image separately from the animated objects that will be moving in the foreground.

Synchronizing Mobile Data - Using Merge Replication (part 2) - Programming for Merge Replication

A .NET Compact Framework application needs to subscribe to a publication only once. Doing so causes information about the subscription to be stored at the server.

Synchronizing Mobile Data - Using Merge Replication (part 1) - Using Good Design to Avoid Synchronization Failures

A mobile application that uses Merge Replication for the transfer of data between SQL Server and SQL Server CE does so by subscribing to a publication that resides on the server.

Windows Phone 7 Advanced Programming Model : Advanced Data Binding (part 4) - Data Bind to Anything

There are situations where you need to data bind to a value and the value type or format does not quite line up with what you need. The IValueConverter interface allows your application to data bind to just about anything including data that does not match the type expected for a particular control.

Windows Phone 7 Advanced Programming Model : Advanced Data Binding (part 3) - Showing Progress & Lazy Load Images

When developing for a mobile device with constrained networking and hardware capabilities relative to a desktop computer, you sometimes have to take additional steps beyond the "default" programming model.

Windows Phone 7 Advanced Programming Model : Advanced Data Binding (part 2) - Syndicated Services

Silverlight 3 and later includes excellent support for easily consuming syndicated feeds like RSS, ATOM, and formatted data feeds. Unfortunately, the System.ServiceModel.Syndication.dll is not available in the Silverlight for Windows Phone 7 SDK.

Windows Phone 7 Advanced Programming Model : Advanced Data Binding (part 1)

In this article, I cover how to access Syndicated Services like RSS feeds from Windows Phone 7, as well as advanced Model-View-ViewModel (MVVM) techniques to incorporate page navigation, showing progress, and lazy loading images.

Beginning Android 3 : The Input Method Framework - Fitting In

Groups are an important part of network management. Many administrators are able to accomplish the majority of their management tasks through the use of groups; they rarely assign permissions to individual users.

Mobile Application Security : Mobile Geolocation - Geolocation Methods & Geolocation Implementation

Geolocation on mobile devices has grown from being used solely for emergency and law enforcement purposes to being an integral component of consumer mobile applications.

Mobile Application Security : SMS Security - Application Attacks & Walkthroughs

This section walks you through some common tasks required when testing SMS security, such as sending a raw PDU from a mobile phone via a PC, as well as converting XML to WBXML for use in OTA and MMS attacks.

iPad SDK : Popovers - The Stroke Width Popover

Make all the connections described in the header file, by control-dragging from File's Owner to each of the GUI components and making the connection, then control-dragging from the slider back to File's Owner and selecting the takeIntValueFrom: action.

iPad SDK : Popovers - The Font Size Popover

To keep the font selector simple, we'll have the size selection as a separate operation, in its own popover. The GUI for the font size selector will consist of a slider, a label showing the slider's value, and a text view showing a preview of the chosen font at the chosen size.

Beginning Android 3 : The Input Method Framework - Tailored to Your Needs

The android:inputType attribute takes a class plus modifiers, in a pipe-delimited list (where | is the pipe character). The class generally describes what the user is allowed to input, and this determines the basic set of keys available on the soft keyboard.

Beginning Android 3 : Working with Containers - Scrollwork

ScrollView is a container that provides scrolling for its contents. You can take a layout that might be too big for some screens, wrap it in a ScrollView, and still use your existing layout logic. The user can see only part of your layout at one time, and see the rest via scrolling.

Mobile Application Security : SMS Security - Protocol Attacks (part 2)

Before attack methodologies can be discussed, it is important to understand the significant challenges that restrict and complicate testing for SMS security issues in mobile devices.

Mobile Application Security : SMS Security - Protocol Attacks (part 1)

A number of attacks belong together under one logical heading of “protocol” attacks. However, these attacks can then be thought of as belonging to one of two subcategories.

Mobile Application Security : SMS Security - Overview of Short Message Service

Multimedia Messaging Service (MMS) is the next progression in the usage of SMS. MMS can send various types of images, audio, and video in addition to text. The demand for this functionality arose out of the changing nature of mobile phones themselves.

iPad SDK : Popovers - The Font Name Popover (part 2)

Try selecting a different font, and then using the Text tool to create some text. Neat! You now have the full complement of fonts included with the iPad at your disposal.

iPad SDK : Popovers - The Font Name Popover (part 1)

Add a new class to your project, and use the assistant that comes up to specify that you want a Cocoa Touch class, specifically a UIViewController subclass. If you've ever created a UIViewController subclass for iPhone in the past—and I suspect you have—this should look pretty familiar.

Beginning Android 3 : Working with Containers - Tabula Rasa

TableLayout works in conjunction with TableRow. TableLayout controls the overall behavior of the container, with the widgets themselves poured into one or more TableRow containers, one per row in the grid.

Beginning Android 3 : Working with Containers - RelativeLayout Example & Overlap

RelativeLayout, as the name suggests, lays out widgets based on their relationship to other widgets in the container and the parent container. You can place widget X below and to the left of widget Y, have widget Z's bottom edge align with the bottom of the container, and so on.

Beginning Android 3 : Working with Containers - LinearLayout Example & The Box Model

Containers pour a collection of widgets (and possibly child containers) into specific structures you like. If you want a form with labels on the left and fields on the right, you need a container.

iPhone Application Development : Reading and Writing User Defaults (part 2) - Implementing System Settings

One option to consider for providing application preferences is to use the Settings application. You do this by creating and editing a settings bundle for your application in Xcode rather than by writing code and designing a UI, so this is a very fast and easy option.

iPhone Application Development : Reading and Writing User Defaults (part 1) - Creating Implicit Preferences

The application preferences system takes care of the low-level tasks of persisting preferences to the device, keeping each application’s preferences separate from other applications’ preferences, and backing up application preferences to the computer via iTunes so that users won’t lose their preferences in case the device needs to be restored

- Mobile Application Security : SMS Security - Overview of Short Message Service

Short Message Service is a relatively straightforward system designed for one mobile subscriber to be able to send a short message to another mobile subscriber. The SMS system itself operates as a “store and forward” system within the carrier.

- Mobile Application Security : Bluetooth Security - Bluetooth Security Features

It is important that these issues remain at the top of mind as mobile application developers plan the design of their applications, as well as whether and how these applications will leverage or rely on Bluetooth security.

Integrating Your Application with Windows Phone 7

The Windows Phone 7 platform is all about providing the best possible phone usage experience to consumers. When consumers look at a photo on the phone, they are using an application known as a Single Photo Viewer (SPV) that provides applications to extend the viewer's functionality via the Extras command of the context menu.

Introducing Windows Phone 7 Photo Features (part 2) - Using a Chooser to Open Photos & Saving Photos to the Phone

As you have already seen and will still see more of, launchers and choosers do make the lives of developers a lot easier by simplifying and abstracting the most common tasks within the Windows Phone 7 Application platform.

Introducing Windows Phone 7 Photo Features (part 1) - Using a Chooser to Take Photos

You will use choosers to implement photo manipulation features on Windows Phone 7. To take photos, you will use the CameraCaptureTask chooser to take the photo and bring that photo inside your application. Follow this walkthrough to accomplish these tasks.

Mobile Application Security : Bluetooth Security - Bluetooth Technical Architecture

The Bluetooth specification covers all aspects of Bluetooth implementation, including radio operation, topology of Bluetooth networks, individual Bluetooth device identification, and modes of operation.

Mobile Application Security : Bluetooth Security - Overview of the Technology

Bluetooth’s functionality and ubiquity on mobile devices provides some exciting opportunities for mobile application developers, but as is often the case with technology, as the use of Bluetooth has increased, so have related security problems.

Windows Phone 7 Development : Push Notifications - Implementing Cloud Service to Track Push Notifications

To make the stock alerts application a bit more real-world, however, you must automate the URL communication piece. In this section, you will learn how to do that using a cloud service built with the Microsoft Windows Communication Foundation (WCF) stack of technologies.

Windows Phone 7 Development : Push Notifications - Implementing Raw Notifications

Raw notifications represent the third and final type of push notification available on the Windows Phone 7 platform. Unlike tile and toast notifications, however, raw notifications are available to a Windows Phone 7 application only if that application is running in the foreground

Windows Phone 7 Development : Push Notifications - Implementing Tile Notifications

Tile notifications are ideal for applications that convey small amounts of information, especially when that information changes frequently. For example, weather reports and compass headings are both good candidates for this category.

Windows Phone 7 Development : Push Notifications - Implementing Toast Notifications

For the toast notifications walkthrough, you will implement a Windows Phone 7 client application that will create a notification channel, and a Windows Forms application that can send the notifications to the Windows Phone 7 application via that channel.

iPhone Application Development : Creating a Navigation-Based Application

This tutorial will implement an app that displays a list of flowers by color, including images for each row. It will also enable the user to touch a specific flower and show a detail view.

Windows Phone 7 Development : Push Notifications - Introducing the Push Notifications Architecture

At the heart of push notifications is a service provided by Microsoft called, very appropriately, Microsoft Push Notification Service (MPNS). MPNS "provides a dedicated, resilient, and persistent channel for pushing a notification to a mobile device," according to MSDN documentation

Windows Phone 7 Development : Push Notifications - Understanding Push Notifications

The Windows Phone 7 platform provides developers with three types of push notifications: toast notifications, tile notifications, and raw notifications. All three types follow the same basic principles of operation and processing, yet differ in the way they display notifications