Android, Windows Phone, iPhone, iPad, Windows Mobile, BlackBerry, Java Mobile, SymbianOS, WebOS, MeeGo, BaDa Tutorials

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BlackBerry Bold 9700 and 9650 Series : Surfing the Web - Going to a Web Page

The first thing you see on the top of the start page will be the web address line. Then you will see your Bookmarks and history of recently visited pages. Click any Bookmark or History item to instantly jump to it.

BlackBerry Bold 9700 and 9650 Series : Surfing the Web - Web Browsing on Your BlackBerry

One of the amazing features of smartphones like the BlackBerry is the ability to browse the web right from your handheld. More and more web sites are now supporting mobile browser formatting.

Windows Phone 8 : Windows Phone Toolkit (part 6) - WrapPanel Layout Container

The last XAML element included in the toolkit is a new layout container called the WrapPanel. This element is not a control but a layout container (for example, Grid, StackPanel).

Windows Phone 8 : Windows Phone Toolkit (part 5) - CustomMessageBox

Inside the toolkit is a special type of control for getting feedback from the user. Although there is a built-in MessageBox class, it is simple and doesn’t allow you to customize the experience. Unsurprisingly, the CustomMessageBox class from the Toolkit attempts to remedy this.

Windows Phone 8 : Windows Phone Toolkit (part 4) - ToggleSwitch Control, ExpanderView Control, PhoneTextBox Control

The built-in TextBox is useful but is missing some features that would make it more useful in some scenarios. It would be nice if the TextBox supported hints , length indication, pressing the Return key to create multiple lines of text, and icons to perform actions on the text box.

Windows Phone 8 : Windows Phone Toolkit (part 3) - ListPicker Control, LongListSelector Control

As an alternative to using the ListBox for very long lists, the Toolkit also supplies you with the LongListSelector control that lets users look at large numbers of options. The phone uses this when you select a phone number from your address book.

Windows Phone 8 : Windows Phone Toolkit (part 2) - ContextMenu Control, DatePicker and TimePicker Controls

The purpose of the ContextMenu control is to allow users to long-click on parts of your application to get a list of options. The control by default shows itself large enough to be obvious to the user.

Windows Phone 8 : Windows Phone Toolkit (part 1) - AutoCompleteBox Control

First up is the AutoCompleteBox. The purpose of this control is to enable you to suggest selections as a user types into the control. The control is styled to look just like the TextBox, but as the user types, the control can show a list of possible options.

Android 3 : Employing Basic Widgets - Turn the Radio Up, It's Quite a View

As with other implementations of radio buttons in other toolkits, Android's radio buttons are two-state, like check boxes, but can be grouped such that only one radio button in the group can be checked at any time.

Android 3 : Employing Basic Widgets - Just Another Box to Check

In Android, there is a CheckBox widget to meet this need. It has TextView as an ancestor, so you can use TextView properties like android:textColor to format the widget.

iTunes on Your iPad : Purchasing or Renting Music, Videos, Podcasts, and More

Once you locate a song, video, TV show, or album, you can touch the Buy or (if you see it) Rent button. This will cause your media to start downloading. (If the content is free, then you will see Free button that you tap turn into a Download button.)

iTunes on Your iPad : iTunes U – Great Educational Content, Searching iTunes

Sometimes you have a good idea of what you want, but you are unsure where it is located or perhaps you don't feel like browsing or navigating all the menus. The Search tool is for you.

iTunes on Your iPad : Finding Music with Featured, Top Charts, and Genius

Along the top of the iTunes music store screen are three buttons: Featured, Top Charts, and Genius. By default, you are shown the Featured selections when you start iTunes.

BlackBerry Java Application Development - Changing the perspective

Eclipse uses the term perspective to mean a saved configuration of views and their placement on the workbench. So far, you've seen only the "Java" perspective that is used when developing applications.

BlackBerry Java Application Development - Starting the debugger

After setting things up, we actually launched the simulator and debugger by clicking on the debug icon on the toolbar. You may have noticed that the toolbar icon has a small down arrow next to it.

BlackBerry Java Application Development - Running an application in the simulator

As you can see, using the simulator is both an easy and effective way to see what your application will look like on a device. The keyboard mappings are generally intuitive, but if you forget the ones that aren't, you can always use the mouse to click on the screen and simulate key presses. The simulator can do so much more than just display the application for you.

Windows Phone 7 : Silverlight User Interface Development - Designing for Windows Phone 7 (part 2) - Designer and Developer Mechanics

Silverlight for Windows Phone 7 is based on Silverlight 3 with some Silverlight 4 features pulled forward, putting XAML-based development front and center in mobile application development.

Windows Phone 7 : Silverlight User Interface Development - Designing for Windows Phone 7 (part 1) - Design Approach, Design Resources

Windows Phone 7 design resources includes a zip of icons to use directly in your application or as a model for custom application icons you build. The application icons come in .png and XAML vector format.

Developing BlackBerry Tablet Applications : Working with the File System - SQLite Databases

Within the applicationComplete event handler, the SQLConnection is initiated, two event listeners are added to listen for SQLEvent.OPEN and SQLErrorEvent.ERROR, and finally, the openAsync method is called and the db file is passed in.

Developing BlackBerry Tablet Applications : File System Access (part 3) - File Browse for Multiple Files

The browse for file functionality of the File class works a bit differently in BlackBerry Tablet OS compared to the desktop version. Within BlackBerry Tablet OS, the browseForOpenMultiple method will open up a specific native file selector that will allow you to open multiple files of type Audio, Image, Documents, or Video. Since you are attempting to read these shared files, you will need to select the access_shared permission when creating your project.

Developing BlackBerry Tablet Applications : File System Access (part 2) - File Browse for Single File

Within BlackBerry Tablet OS, the browseForOpen method will open up a specific native file selector that will allow you to open a file of type Audio, Image, Documents, or Video. Since you are attempting to read these shared files, you will need to select the access_shared permission when creating your project.

Developing BlackBerry Tablet Applications : File System Access (part 1)

To access the file system, you can navigate using several folder static alias properties of the File class. Since you are attempting to read these shared files, you will need to select the access_shared permission when creating your project.

iPhone Developer : Assembling Views and Animations - Managing Subviews - Tagging and Retrieving Views

The UIView class offers numerous methods that help build and manage views. These methods let you add, order, remove, and query the view hierarchy. Since this hierarchy controls what you see onscreen, updating the way that views relate to each other changes what you see on the iPhone.

iPhone Developer : Assembling Views and Animations - Recovering a View Hierarchy Tree, Querying Subviews

Views store arrays of their children. Retrieve this array by calling [aView subviews]. Onscreen, the child views are always drawn after the parent, in the order that they appear in the subviews array.

Java ME on Symbian OS : Handling Diversity - Handling Screen and Display Diversity

The screen and display parameters are the size and the color depth. MIDlets should never assume any specific screen size. Instead, they should query the size of the display and adjust their view accordingly.

Java ME on Symbian OS : Handling Diversity - Handling Diverse Multimedia Formats and Protocols

The multimedia support in MMAPI is quite openly defined. The general-purpose design of MMAPI implies that the supported set of protocols and content formats is not mandated and is left for the Java ME implementation to define. Because of the lack of a mandatory set, MMAPI also cannot specify which content types should work on top of which protocol.

Java ME on Symbian OS : Handling Diversity - Supporting Diverse Input Mechanisms

S60 5th Edition includes UI support for a touch screen as well as UIQ. If a user buys a Nokia 5800 XpressMusic device with touch-screen support, a touch or stylus is used for interaction. Java ME developers should take touch devices into consideration when designing and planning the user interaction as more and more touch-enabled devices appear in the market.

Windows Phone 7 : Building 2D Games with the XNA Framework - AlienShooter Game Play (part 6) - Updated GameplayScreen Class, Collision Detection and Memory Management

When you click "new game" in the main menu, the GameplayScreen is the screen that loads and the GameplayScreen class is where all of the game action occurs. The following sections cover how the GameplayScreen class manages the game objects, collision detection, and scoring.

Windows Phone 7 : Building 2D Games with the XNA Framework - AlienShooter Game Play (part 5) - Missile Class, Game Status Board Class

The GameStatusBoard class keeps track of and displays the score and lives available during the game. This class also plays sound effects when an enemy ship is destroyed and when the hero ship takes a hit from an enemy ship.

Windows Phone 7 : Building 2D Games with the XNA Framework - AlienShooter Game Play (part 4) - Hero Ship Class

We create another class named UserGameObject that inherits from the GameObject class. This class represents the player, which is the Hero Ship in AlienShooter, which makes it unique to the other classes since it takes user input in the form of accelerometer and touch.