Foreground and background applications

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Foreground and background applications

Foreground and Background Perspectives

The visibility of bada applications depends on 2 perspectives: foreground and background. When launched, an application can be switched between the 2 perspectives to control its UI visibility.

Important considerations about the foreground perspective include:

• Applications are visible when they are in the foreground.
• When an application is first launched, its splash image is displayed, and then the foreground event is called just after the splash image has disappeared.
• An application moves to the foreground when:
• The application is selected from the task manager list.
• The application icon in the main menu is pressed when the application is in the background.
• If you stopped drawing when the application moved to the background, remember to resume drawing when the application moves to the foreground, if necessary.
• You can refresh any screen element by calling the foreground event handler, even when the application is present in the foreground.
• Important considerations about the background perspective include:
• Applications are invisible or partially hidden by another window, such as a pop-up message, when they are in the background.
• In bada API version 2.0 or later, use the Osp::App::Application::GetAppUiState() method (in the C++ framework) to get the UI visibility state of the application.f