Maybe a wake lock will help you?

<uses-permission android:name="android.permission.WAKE_LOCK" />


PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK,
"My Tag");
wl.acquire();


Or maybe this?


final Window win = getWindow();
win.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
| WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);


win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
| WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);



On Tuesday, July 31, 2012 6:19:27 AM UTC-5, Abhishek Kumar Gupta wrote:
>
>
>    I have created a lock screen for ICS and it is placed in the 
> frameworks and I can open applications using this. For the user effects I 
> have started an animation when the lock screen is displayed. When I 
> boot/reboot the device, animation appears after 2-3 seconds of delay. 
>
> Currently, I am receiving broadcast with 
> action*"Intent.ACTION_BOOT_COMPLETED" 
> *and starting the animation. But UI part of the LockScreen(without 
> animation) is displayed before receiving the *Intent.ACTION_BOOT_COMPLETED
> *. My requirement is to display the animation in LockScreen on 
> boot/reboot of device without any delay.
>
> Any help or guidance in this regard will be well appreciated.
>

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