Windows phone back button icon
If a user double taps in the Status Bar area, all other relevant indicators slide into view for approximately eight seconds before sliding out of view. The system clock is 32 pixels high in portrait mode and 72 pixels wide in landscape mode. It always extends to the edge of the screen and is opaque in appearance.
The App Bar provides a place for you to display up to four of the most common app tasks and views as icon buttons. This bar provides a view that displays icon buttons with text hints, as well as an optional context menu called the App Bar Menu that is activated when a user taps the visual indicator of sequential dots, or flicks up the App Bar. Use the App bar instead of creating your own menu system.
2. Home Button
This helps to create a consistent user experience across all apps on the device. The App bar provides menu animation and rotation support for you.
If you plan to localize your app, you should create the Application Bar in C , or use C to programmatically modify the label values at run time. Using a custom color can affect the display quality of the button icons, create unusual visual effects in menu animations, and reduce battery life on some devices. The opacity of the App bar can be adjusted finely, but we recommend that you use only opacity values of 0, 0. If the opacity is set to less than 1, the displayed page will be the size of the screen, with the App bar overlaid on top of it. If the opacity is set to 1, the displayed page will be resized to be the area of the screen not covered by the App bar.
The App bar always stays on the same edge of the display as the steering buttons Back , Start , and Search and extends the full width of the screen in portrait or landscape mode. Icon buttons rotate to align with the three phone orientations. It can be set to be displayed or hidden. For an explanation and an example of how to localize the App bar, see How to build a localized app for Windows Phone 8. The App bar menu is an optional way for users to access specific tasks from the App bar.
This menu is activated when user taps the visual indicator of sequential dots or flicks up the App bar. The view can be dismissed by tapping outside of the menu area or on the dots, using the Back button, or selecting a menu item or App bar icon. To prevent the menu from scrolling, the number of items displayed in the menu is limited to five. The recommended maximum length for the text of a menu item is between 14 to 20 characters. Again, less is more in this space. App bar icons should be clear and understandable, and should use real-world metaphors that are familiar to users.
Windows Phone 8 Icon Size Guide
The best icons have simple geometry and limit the amount of fine detail. Buttons should have an icon and a text hint. An example would be a button that flips an image horizontally. App Bar buttons can be displayed in an enabled or disabled state. An example of a disabled button would be a Delete button in read-only scenarios. Use icon buttons for the primary, most-used actions in the app. Some actions are difficult to clearly convey with an icon. Place these actions in the App bar menu instead. All Windows Phone devices are required to have a dedicated hardware Back button that should always be used for backward navigation.
Choose icons that have clear meanings when the App bar is rotated. The App bar automatically handles changes in screen orientation. When the device is in a landscape orientation, the menu is displayed vertically on the side of the screen. The icon buttons are rotated so that they appear upright to the user, but the order of the icons in the list is not changed. Icon images should use a white foreground on a transparent background using an alpha channel. Images that are sizes other than the recommended size are scaled to fit and can potentially lower the overall image quality of the App bar Icon.
Using a custom color can affect the display quality of the button icons, create unusual visual effects in menu animations, and reduce the battery life of some devices. Only the white icons should be used in the App bar. To locate these items, navigate to:. For app development, the Push Notification Service is designed to provide a cloud service with a dedicated, resilient, and persistent channel for pushing a notification to a mobile device.
When a cloud service needs to send a push notification to a device, it sends a notification request to the Push Notification Service, which in turn routes the notification to the app, or to the device as a Tile, toast, or raw notification. There are three methods for displaying push notifications: Tile notifications, toast notifications, and raw notifications.
Windows Phone 8 Icon Size Guide
Tile notifications inform users of changes or events that may have occurred and are nondisruptive to the user workflow. They appear on Start Tiles. Using tile notifications, you can dynamically set properties on a Tile such as the count, background image, and title.
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A web service can generate a special kind of push notification known as a toast notification, which requests an action from the user. Toast notifications appear as an opaque bar in the accent color at the top of the screen, and display a scaled-down version of the app icon in the left corner. Two fields of text are available: Toast notifications are displayed for 10 seconds before disappearing. If the notification is tapped, the app that sent the notification will launch.
An example of these notifications is when the user receives a text message or instant message. Use toast notifications for action-requested notifications, but use them sparingly. All apps have access to Toast notifications, and too many toast notifications annoy the user. Examples would be notifications produced via an instant messaging client or a peer-to-peer oriented app. Apps must default to turn toast notifications off. Toast notifications should be personally relevant and time-critical to the user. Notifications that require action inside an app are fully controlled by an app and affect only that app.
These are called raw notifications. They can be generated by the app itself or sent from a web service.
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There is no system-wide way to display a raw notification. If there is no network connection, the app should provide an appropriate warning. You can use Airplane mode to test your warning. Verify that the app can still be navigated when there is no network available. Although there may be no data coming in, navigation of the app should still be functional. An end-user license agreement, or EULA, is a set of guidelines for use that the user consents to follow when he or she first launches an app.
It also lays out the user's rights, as you envision them. It's an agreement between you and the person purchasing the app that stipulates that the user won't misuse it. Use of an app should depend on a user accepting the EULA. This statement should discuss behaviors and uses of your app that you endorse, including specific terms about content, license, installation, activation, validation, Internet-based services, or the use of certain information.
Correct and incorrect Tile usage The best Tiles communicate some info about the app, show off the personality of your brand, and look great beside all the other Tiles on the screen. Tile art is important If you use multiple Tile images, they should be visually consistent with each other and have a recognizable theme or style. Be conservative in the use of Tile Notifications. Excessive use can reduce battery life. Incorrect use of black background color for a Tile If you want your Tile background to be the same theme color as the phone UI, you can make the background of your Tile transparent.
Name the folder Images. In Solution Explorer , select all the new files. Build Action must be set to Content to use the icons as button images. How to create an app bar using code for Windows Phone. Code Samples for Windows Phone.