Well, I have good news and bad news. I can reliably turn the device on
& keep it on for a few seconds, as seen below.
private void PowerUp()
{
PowerManager pm = (PowerManager) getSystemService
(Context.POWER_SERVICE);
cancelWakeLock();
mWakeLock = pm.newWakeLock(
PowerManager.FULL_WAKE_LOCK | // could use bright instead
PowerManager.ACQUIRE_CAUSES_WAKEUP // so we actually wake
the device
//PowerManager.ON_AFTER_RELEASE // and we keep it on for a
bit after release - seem to actualy stop the device powering up when
not on charge
, "my tag");
mWakeLock.acquire();
mPowerTimer = new Timer();
mPowerTimer.schedule(
new TimerTask()
{
@Override
public void run()
{
System.out.println("Power timer -
releasing");
cancelWakeLock();
}
}
, 10000);
}
private void cancelWakeLock()
{
if( mWakeLock != null )
{
mWakeLock.release();
mWakeLock = null;
}
}
On Feb 25, 9:30 am, jarkman <[email protected]> wrote:
> Steve - you're doing exitKeyguardSecurely, and I think you should be
> doing disableKeyguard.
>
> Chronologically, when the unlock pattern is turned on, I think the
> sequence should be:
> - Keyguard is on
> - You call disableKeyguard
> - The keyguard goes away
> - You show your activity, which should not let the user do anything
> dangerous
> - The user does something to leave your activity
> - You call exitKeyguardSecurely
> - The unlock pattern shows
> - The user unlocks it
> - your onKeyguardExitResult is called
> - then you can do the work you wanted to do as a result of the user's
> input on your activity
>
> I also had trouble with onPause being called at times I was not
> expecting during this process. I recommend lots of tracing!
>
> None of that helps with the power stuff, of course. My next experiment
> will be to actually hold the wakelock for several seconds. I'd love to
> see a working sample for this stuff....
>
> Richard
>
> On Feb 25, 8:10 am, SteveV <[email protected]> wrote:
>
> > Thanks for sharing...
> > I had the following code.. which works on the emulator, but I can't
> > get it to work on my phone (with or without the pattern lock enabled):
>
> > I had a line in my onPause that calls reenableKeyguard(), if
> > unlocked==true.
> > I'll keep trying - I noticed your code uses
> > PowerManager.ON_AFTER_RELEASE. I'll report back if adding that helps
> > or if I figure it out myself.
>
> > //wake phone
> > Log.d(TAG, "mWakeLock.acquire/release()");
> > PowerManager pm = (PowerManager) getSystemService
> > (Context.POWER_SERVICE);
> > mWakeLock = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK
> > | PowerManager.ACQUIRE_CAUSES_WAKEUP,
> > "TEST");
> > mWakeLock.acquire();
> > mWakeLock.release();
>
> > //unlock phone
> > KeyguardManager km = (KeyguardManager) getSystemService
> > (Context.KEYGUARD_SERVICE);
> > mKeyguardLock = km.newKeyguardLock("TEST");
> > if (km.inKeyguardRestrictedInputMode()){
> > km.exitKeyguardSecurely(new
> > KeyguardManager.OnKeyguardExitResult(){
> > @Override
> > public void onKeyguardExitResult(boolean
> > success) {
> > if (success){
> > Log.d(TAG,
> > "onKeyguardExitResult success");
> > } else {
> > Log.d(TAG,
> > "onKeyguardExitResult ! success");
> > }
> > }
> > });
> > Log.d(TAG, "inKeyguardRestrictedInputMode -
> > disableKeyguard");
> > mKeyguardLock.disableKeyguard();
> > unlocked = true;
> > }
>
> > On Feb 24, 10:22 am, jarkman <[email protected]> wrote:
>
> > > As far as I can tell, my PowerManager code works properly when the
> > > device is on charge, but generally doesn't wake the device up when it
> > > is not on charge. I shall keep digging. Perhaps I need to hold the
> > > wakelock for longer to stop it snoozing.
>
> > > R
>
> > > On Feb 23, 11:24 pm, SteveV <[email protected]> wrote:
>
> > > > Does anyone know how to do this correctly?
>
> > > > I can't find any examples & the API documentation is pretty hard to
> > > > follow.
>
> > > > I am guessing I need to use the KeyGuardManager and PowerManager...
> > > > but can't figure out how to bring my activity up past the keyguard and
> > > > re-enable the keyguard so my activity doesn't let someone get past the
> > > > lock when my activity awakens.
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