Android, How to launch Activity over Lock screen

Question

I want launch my activity on push notification over lock screen without change in lock.

Any special permission for that activity?

Answer 1

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1)
    {
        setShowWhenLocked(true);
        setTurnScreenOn(true);
        KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
        if(keyguardManager!=null)
            keyguardManager.requestDismissKeyguard(this, null);
    }
    else 
    {
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
                WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
    }

Answer 2

After API level 17 this would work

<activity
    android:name=".yourActivityName"
    android:showOnLockScreen="true"
    android:screenOrientation="sensorPortrait" >

or write this in onCreate() before calling setContentView()

getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);