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Launching Android Native Lock Screen

I'm looking for a way to launch the native android lock screen from my application. I've looked around and found code about KeyGuardLock and KeyGuardMa开发者_如何学JAVAnager but I believe that only locks the keyboard from working.

REF: http://smartandroidians.blogspot.com/2010/03/enabling-and-disabling-lock-screen-in.html


Use DevicePolicyManager to lock screen..

here is how to do it : http://developer.android.com/reference/android/app/admin/DevicePolicyManager.html

To unlock..

    keyGuard = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
        mLock = keyGuard.newKeyguardLock("Your_App");
        mLock.disableKeyguard();

To Wake the screen up..

        PowerManager pm = (PowerManager) getApplicationContext()
                .getSystemService(Context.POWER_SERVICE);
        WakeLock wakeLock = pm
                .newWakeLock(
                        (PowerManager.SCREEN_BRIGHT_WAKE_LOCK
                                | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP),
                        "TAG");
        wakeLock.acquire();
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