Help with PartialLock

[solas]

Hi all, I'M a noobie and I'm working on an app that requires the phone/screen lock to be disabled (in code) I need the app to keep running (but turn the screen off for power saving purposes) I have been looking into PartialLock and KeepAlive but can find no snippet of code to demonstrate how to use them, specifically can anyone point me in the direction of a snippet of code that will show me how PartialLock works. Thanking you in advance Solas

 

[Erel]

Are you sure you need a lock for this?
Can you describe your application a little bit?

 

[solas]

Hi Erel I'm not sure of anything, I'm just trying to get the hang of all the features of B4A and I am using this as a learning exercise. The syntax layout for PartialLock has me stumped (I cant find an example for it ) basically I want to run an app that is always on the screen but with the power drain minimized,the screen could shut down until woken by the Accelerometer. Once I have managed this my next exercise will be to try to shift as much code as I can to service modules PS I realize that this is posted in the wrong room and if you want to shift the thread to a more appropriate room that's fine sorry about the hassle
rgs Solas

 

[Erel]

There is not much syntax.

    Dim wakelock As PhoneWakeState 'declare in Sub Process_Globals
    wakelock.PartialLock 'acquire the lock
    ....
    'Release it when it is no longer needed
    wakelock.ReleasePartialLock

 

[solas]

Thanks

Thanks Erel that was exactly what i needed

 

[rfresh]

@solas

What does the partial lock do? Just turn off the screen but keep the app alive?

And then ReleasePartialLock will bring it "back to life"?

 

[Erel]

Partial lock forces the CPU to keep running. It does nothing with the screen.

 

[rfresh]

And that prevents your device from going to sleep or prevents the screen from dimming? In other words, it keeps your device active?

 

[Erel]

It prevents the CPU from going to sleep. It doesn't affect the screen in anyway. The screen will eventually turn off.

 

[mc73]

A partialLock, since leaving CPU to continue working, would prevent WIFI from turning off, in case of course we've already set this property to 'never'?

 

[Erel]

The Android documentation only refers to the CPU. It is not clear whether Wifi will stay on or not.

 

[mc73]

The Android documentation only refers to the CPU. It is not clear whether Wifi will stay on or not.

I suspect it's not for keeping WIFI alive

 

[boten]

Partial lock forces the CPU to keep running. It does nothing with the screen.

but once the user presses the power button slightly, the CPU might still be working but your app is paused, thus you can't use any timer event you set. e.g: vibrate the phone every "so much" seconds, even when the user locked the screen by the power button.

 

[mc73]

but once the user presses the power button slightly, the CPU might still be working but your app is paused, thus you can't use any timer event you set. e.g: vibrate the phone every "so much" seconds, even when the user locked the screen by the power button.

I think that you can always use a service module for such purposes.