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Web and WebWorks Development

Posts: 591
Registered: ‎10-17-2010
My Device: (BlackBerry Z10)-> Q10/Passport Dual Use

PlayBook - How to Prevent Standby When Application Open?

One of my application requires that the device NOT go into standby mode after 5 minutes.

Application Logic

Default Tablet / Application Behavior:
After 90 second to 5 minutes, tablet goes into standby.

Desired Tablet / Application Behavior:

Case 1: User taps a button, which I call "prevent-standby", which sets variable in application to TRUE, after button tapped, application does not go into standby for an indefinite time (i.e. until "exit prevent standby" button tapped again).

Case 2: User sets time to prevent standby (i.e. 60 minutes, 2 hours, 3 hours, or x hours y minutes). Then taps button to enter "prevent-standby" mode for set time. Application exits "prevent standby" mode after set time.

Things To Consider

  • Tablet will be docked on charging station: battery life not an issue
  • User must tap a "button" to tell application that it will prevent standby.
  • The prevent-standby mode cannot initiate when the application is launched.

What Part of the WebWorks 2.0 API should I reference?
WebWorks 2.0 API Tablet OS

Question 1:
How would I implement prevent-standby?

Question 2:
If I wanted to launch the video camera in my application, how do I prevent standby on the video camera?

P.S. This will be used for a surveillance/video cam monitoring program. I believe there are many other use-cases that would benefit from preventing-standby as well....


Posts: 42
Registered: ‎01-18-2011
My Device: PlayBook

Re: PlayBook - How to Prevent Standby When Application Open?

Bump, need to prevent my application from falling into standby mode as well.

New Developer
Posts: 6
Registered: ‎05-04-2011
My Device: Playbook
My Carrier: n/a

Re: PlayBook - How to Prevent Standby When Application Open?

i have the same request. btw it's strange that user can't choose time more than 5 minutes
Posts: 669
Registered: ‎02-19-2011
My Device: BlackBerry PlayBook 32GB
My Carrier: Sprint

Re: PlayBook - How to Prevent Standby When Application Open?

I need this as well. On WebOS there's a way to keep the screen on at all times, as long as your app is in the foreground. Would be great if WebWorks had such a setting as well.

Staff UI Prototyper (read: full-time hacker)

My BB10 apps: Screamager | Scientific RPN Calculator | The Last Weather App

New Member
Posts: 1
Registered: ‎07-19-2011
My Device: PlayBook Tablet
My Carrier: n/a

Re: PlayBook - How to Prevent Standby When Application Open?

NativeApplication.nativeApplication.systemIdleMode = SystemIdleMode.KEEP_AWAKE;

should do the trick