windows phone 8

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Windows Phone 8 : Building Location Aware Apps - A Walkthrough of the Location Viewer Sample (part 2) - Displaying Location Using the GeoLocationView Page

The OS displays an indicator in the system tray when location tracking is engaged. In the sample this occurs when the mock locator is turned off.

Windows Phone 8 : Building Location Aware Apps - A Walkthrough of the Location Viewer Sample (part 1) - GeoLocationViewModel Class

The GeoLocationViewModel.Start method instantiates either the GeolocatorProxy or a MockGeoLocator depending on the value of the viewmodel’s Boolean useMockLocator field (see Listing 1).

Windows Phone 8 : Building Location Aware Apps - Getting Started with Location (part 3) - Code-Driven Location Simulation

The Windows Phone emulator’s location simulator is useful for testing your app while it is executing within the emulator. To test the geo location features of your app on a physical device or within a unit test requires a different code-driven approach.

Windows Phone 8 : Building Location Aware Apps - Getting Started with Location (part 2) - Background Location Tracking

In Windows Phone 7.5, apps that made use of location tracking were subject to events being lost when deactivated. When the app was dormant or tombstoned, PositionChanged event handlers would be discarded—lost forever, leaving the app without any knowledge of changes in location for the period before reactivation.

Windows Phone 8 : Building Location Aware Apps - Getting Started with Location (part 1) - Geolocator Class

The Geolocator class can be used by your app to monitor the location of the phone. It contains events for monitoring hardware state changes and geographic position changes.

Windows Phone 8 : Building Location Aware Apps - Location Sensing Technologies

Each strategy has advantages and disadvantages, depending on environmental factors and power efficiency requirements (see Figure 1). The following sections discuss the pros and cons of each technology.

Windows Phone 8 : Range Controls (part 2) - Progress Indicator, Slider , ScrollBar

In the initial release of the Windows Phone OS, there was no way to control the native progress bar located in the status bar of the phone. Fortunately, since the release of Windows Phone 7.5, you can with the ProgressIndicator class.

Windows Phone 8 : Range Controls (part 1) - ProgressBar

The RangeBase control is an abstract class that represents a control that oversees a numeric value that falls between a minimum and a maximum value. Windows Phone provides three RangeBase controls: the ProgressBar, ScrollBar, and Slider

Windows Phone 8 : Items Controls - ListBox, ComboBox

Just as the ContentControl plays host to a single child control, the ItemsControl can have many children. Controls that can contain more than one child usually derive from the ItemsControl class; these include the ComboBox control and, most notably, the ListBox control

Windows Phone 8 : LinkedIn (part 3) - Posting a Message, The Feeds Filter

Because Windows Live, Facebook, Twitter, and LinkedIn content is all aggregated and displayed on the What’s New page, the page might become so cluttered that you can no longer easily find what you are looking for. If this happens, you can use the Feeds Filter to cut through the clutter.

Windows Phone 8 : LinkedIn (part 2) - Accessing LinkedIn Content, Responding to a LinkedIn Post

Content from LinkedIn is shown in the same place as Facebook and Twitter content. You can view content from LinkedIn by opening the People hub and following these steps

Windows Phone 8 : LinkedIn (part 1) - Configuring Your LinkedIn Account

Windows Phone 8 devices are capable of connecting to LinkedIn without the aid of any additional software.

Windows Phone 8 : Twitter (part 2) - Checking for Tweets, Responding to a Tweet, Checking Twitter Notifications

As was the case for Facebook data, elements related to Twitter are scattered throughout the phone. If you are interested in centralizing the Twitter experience then you might consider downloading a Twitter app. The Store contains an official Twitter app, and there are also unofficial Twitter apps from independent developers.

Windows Phone 8 : Twitter (part 1) - Configuring Your Twitter Account

Windows Phone 8 devices include full Twitter integration. You can send and receive tweets directly through the phone without installing any extra software.

Windows Phone 8 : Working with People - The Me Tile (part 4) - Chatting with Friends, Setting Your Chat Status, Notifications

If you prefer to have everything in one place, a number of free Facebook apps for Windows Phone 8 can accomplish this. These apps, which include an official Facebook app that you can download through the Store, enable you to access your Facebook account through a single interface.

Windows Phone 8 : Working with People - The Me Tile (part 3) - Uploading a Photo

Every once in a while, Windows Phone 8 devices might not properly detect that there are faces shown in a photo. In this situation, you can tap the Add Tag icon and then tap the face in the photo. Windows then allows you to either manually enter a name or choose a name from your Facebook contacts.

Windows Phone 8 : Working with People - The Me Tile (part 2) - Posting Status Updates, Checking In

Although being able to choose from a list of locations is handy, it might not work so well in dense urban areas. If you find that your location isn’t on the list (or if the list is too long to sort through), you can use a different method.

Windows Phone 8 : Working with People - The Me Tile (part 1) - Viewing Your Own Social Networking Wall

Just as Windows Phone 8 enables you to view your friend’s Facebook Walls, you can also view your own Wall (which can include feeds from Facebook or any other social network that is connected to your phone).

Windows Phone 8 : Receiving Input with Buttons - Check Box

The CheckBox control is used to define a binary state and can be used in groups to display multiple choices from which the user can select one or more choices. A user can either tap a check box or the associated label text to select an option.

Windows Phone 8 : Receiving Input with Buttons - Radio Button

The RadioButton is a subclass of the ToggleButton class and offers the same events, such as Checked, Unchecked, and Indeterminate, and properties, such as IsChecked.

Windows Phone 8 : Receiving Input with Buttons - Repeat and Toggle Buttons

Neither the RepeatButton nor the ToggleButton controls are abstract. Yet both reside in the System.Windows.Controls.Primitives namespace, not in the System.Windows.Controls namespace, indicating that these two controls are not intended to be used in day-to-day page code.

Windows Phone 8 : Receiving Input with Buttons - Tap and Click Events, Button Click Mode, Hyperlink Button

Since the release of the Windows Phone 7.1 SDK, the Click event of the ButtonBase class has been superseded by a UIElement event named Tap. The Tap event is designed for touch input, while the Click event relies on legacy code that handles mouse state.

Windows Phone 8 : Receiving Input with Buttons

In most Windows Phone XAML apps, buttons are the most commonly used element for receiving user input. Ordinarily, a button initiates an action when a user taps it.

Windows Phone 8 : Content Controls - Defining the Default Content Property

Controls that are derived from ContentControl are able to host a single object. ContentControls include Buttons, ListBoxItems, and containers such as the PhoneApplicationFrame and the ScrollViewer control

Windows Phone 8 : Control Type Taxonomy - Identifying Controls Not Supported or Absent in Windows Phone

Having a solid grasp of the class hierarchy of any library that you regularly use helps to improve your productivity and provides a good starting point to gaining a deeper understanding of how a framework is designed to work.

Windows Phone 8 : Working with People - Facebook Integration (part 5) - Viewing a Friend’s Facebook Albums

You can also view your friends’ Facebook albums through Windows Phone 8. To do so, open the People hub and follow these steps

Windows Phone 8 : Working with People - Facebook Integration (part 4) - Writing on a Friend’s Facebook Wall , Viewing Facebook Wall Photos

Windows Phone 8 enables you to write on a friend’s Facebook Wall. To do so, open the People hub and follow these steps

Windows Phone 8 : Working with People - Facebook Integration (part 3) - Commenting on a Wall Post

If you want to comment on someone’s Facebook Wall post, you can do so by following these steps

Windows Phone 8 : Working with People - Facebook Integration (part 2) - Viewing a Wall Post, Viewing Comments to Wall Posts

After you have added a Facebook account to your phone, you can access a friend’s Facebook Wall directly through the People hub.

Windows Phone 8 : Working with People - Facebook Integration (part 1) - Connecting to Facebook

Windows Phone 8 offers built-in Facebook integration. This means that you can access your friend’s Facebook Wall (as well as your own) without actually having to go to the Facebook website.