Gestures

Instead of poking at UI components, users interact with content on the screen using gestures. Avoid cluttering the screen with UI components and design your application to support the available gestures. For example, let users zoom into a picture by spreading two fingers instead of tapping a button to zoom in incrementally.

Bezel gestures

BlackBerry 10 smartphones support gestures from the device bezel, which is the frame around the display area of the screen. You don't need to implement these gestures in your app. They are provided automatically.

Wake up the device
Display notifications
Display the BlackBerry Hub
Minimize applications
Device showing how to swipe up from the bottom of the screen to wake up the device.
Device showing how to swipe up from the bottom of the screen to peek at notifications.
Device showing how to swipe up from the bottom of the screen and to the right to access the BlackBerry Hub.
Device showing how to swipe up from the bottom of the screen to minimize applications.
Display a touch screen keyboard
Display an application menu
Device showing how to swipe up from the bottom of the screen with two fingers to display a touch screen keyboard.
Device showing how to swipe down from the top of the screen to open an application menu.

Content gestures

If they apply to your app, you can use the following gestures to let users manipulate content directly.

Scroll
Scroll between two items
Select one item
Progress through a file
Device showing how to scroll through a list.
Device showing how to move between two items.
Device showing how to select one item.
Device showing how to progress through a file using a slider.
Peek
Open an action menu
Zoom in
Zoom out
Device showing how to peek at content in the previous level of the application hierarchy.
Device showing how to open an action menu.
Device showing how to zoom in.
Device showing how to zoom out.
Move an item from one place to another
Device showing how to move an item from one place to another.

Best practice

If users select a few items at the same time and try to perform an action that can't be performed on all of them (for example, because some are locked), complete the action on the items that can be acted on. Display a toast to indicate why the action wasn't performed on some items.

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