Help to do a trick on the Lock screen

by Renan » Fri, 20 May 2011 09:30:36 GMT

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I'm doing an App that need's to interfere with the Lock Screen...

I have a service running, and i need in some point of my service, to
UNLOCK the screen, just as if the user touch-slided the unlock thing
on the screen.

How can i do that???



Other Threads

1. Problems capturing keys

Forgive me for asking what seems like an easy question, but I am new
to Android, and have spent hours getting this far, only to find a
problem running my code on the handset.

I am trying to force an EditText field ('Cost') to only allow:
Numbers, a Period and DEL
In addition, I want the ENTER key to fire a Button Click for

I have the following code:
        EditText txtCost = (EditText) findViewById(;
        txtCost.setOnKeyListener(new OnKeyListener()
                        public boolean onKey(View arg0, int arg1, KeyEvent 
arg2) {
                                        Button btnCalculate = (Button) 
                                        return true;
                                //else if(arg1 == 46 || arg1 > 47 || arg1 < 58)
                                else if(arg1==KeyEvent.KEYCODE_DEL ||
arg1==KeyEvent.KEYCODE_PERIOD || arg1==KeyEvent.KEYCODE_0 ||
arg1==KeyEvent.KEYCODE_1 || arg1==KeyEvent.KEYCODE_2 ||
arg1==KeyEvent.KEYCODE_3 || arg1==KeyEvent.KEYCODE_4 ||
arg1==KeyEvent.KEYCODE_5 || arg1==KeyEvent.KEYCODE_6 ||
arg1==KeyEvent.KEYCODE_7 || arg1==KeyEvent.KEYCODE_8 ||
                                        return false;
                                        return true;


Testing in Eclipse, I thought everything was working fine, but when I
installed it on my handset (Nexus One) and ran it, I found that I
could type whatever characters I wanted using the on-screen keyboard!

It doesn't seem like this is a hard nut to crack, but I have so far
failed to find a solution.

Thanks for any pointers.



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