Disable Screen Lock(Power) Button in Android

Question

I want that when my application is running the power button (which upon pressing locks the screen & screen goes BLACK), should be disabled. So that the user cannot lock the screen.

I have noticed this thing in Samsung Galaxy S phone's Default Camera App. That's the same reason I am trying to do the same. I have also a Camera related App.

how did you solve this? – Vikas Pandey Oct 07 '17 at 09:24 — Vikas Pandey, Oct 07 '17 at 09:24

UdayaLakmal · Answer 1 · 2012-09-13T12:14:33.540

8

try this one

int val=android.provider.Settings.System.getInt(getContentResolver(),
                                                                SCREEN_OFF_TIMEOUT);

                    android.provider.Settings.System.putInt(getContentResolver(),
                                                            SCREEN_OFF_TIMEOUT, -1);
                    Toast.makeText(this, "Disabled Screen Timeout", Toast.LENGTH_LONG).show();
                    SharedPreferences.Editor editor = settings.edit();
                    editor.putInt("ScreenTimeout",val);
                    editor.commit();
                }
            } catch(Throwable er) {
                Toast.makeText(this, "Error "+er.getMessage(), Toast.LENGTH_LONG).show();
            }

that will set screen off

to disable key guard in android use

KeyguardManager keyguardManager = (KeyguardManager)getSystemService(Activity.KEYGUARD_SERVICE);
KeyguardLock lock = keyguardManager.newKeyguardLock(KEYGUARD_SERVICE);
lock.disableKeyguard();

and use permition

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

to keep screen alive

 @Override
    protected void onCreate(Bundle icicle) {
        super.onCreate(icicle);

        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    }

edited Sep 13 '12 at 12:14

answered May 30 '12 at 13:36

UdayaLakmal

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in order to use that need – UdayaLakmal May 30 '12 at 13:38
I am not looking for TIMEOUT. I am talking about Disable POWER BUTTON. – Khawar May 30 '12 at 13:42
i noticed that later, i did change my answer – UdayaLakmal May 30 '12 at 13:44
1

Thanks for your answer, I see that the phone is not locked now but the screen is still going black. How can we avoid this? Anyways I am voting up for your answer. Thanks. – Khawar Sep 13 '12 at 07:33
i added code into below the answer, try that out getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); – UdayaLakmal Sep 13 '12 at 12:16

score 3 · Answer 2 · answered Apr 17 '14 at 14:24

3

I have reached this using root access.

sqlite3 /data/data/com.android.providers.settings/databases/settings.db
insert into secure (name, value) values ('lockscreen.disabled', 1);

or depending on version

sqlite3 /data/system/locksettings.db
insert into locksettings (name, value) values ('lockscreen.disabled', 1);

answered Apr 17 '14 at 14:24

CelinHC

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i am not understand . can you brief to me please. – Mukta Ghosh Oct 31 '19 at 10:46

Disable Screen Lock(Power) Button in Android

2 Answers2

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