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Native Development

Posts: 656
Registered: ‎02-03-2010
My Device: Z10 LE
My Carrier: Rogers
Accepted Solution

How to know if backlight is on or off?

Is there a way to know if the backlight is on or off.....couldn't find an API or event that would let me know.  Thanks.

Steven Kader at JaredCo
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Posts: 103
Registered: ‎12-31-2012
My Device: Blackberry 9810
My Carrier: Verizon

Re: How to know if backlight is on or off?

Have you tried the invisible() signal in bb::Application.  The  Fundamentals of Cascades doc says :


invisible() This signal is emitted when the app (and its active frame) are no longer visible. The app might enter this state if the device backlight is off or if another app is brought to the foreground.


- Dishooom

Posts: 305
Registered: ‎02-14-2012
My Device: BlackBerry Passport / Nokia N950
My Carrier: -

Re: How to know if backlight is on or off?

Apart from the Application state, is there a way to check the Backlight state and maybe the Level at a global state?  (even if my App is in the Background)