Turn screen off programmatically

Question

I'm working in an app that needs to to do any of this actions:

How can I achieve this?

Found this option, but it requires the proximity sensor to be in "near" state to turn off the screen:

 mWakeLock = mPowerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, "tag");
 mWakeLock.acquire();

Thanks

I highly doubt Android lets you do this. In any case, you could try your luck with [Android: How to turn screen on and off programmatically?](https://stackoverflow.com/a/41968655/962089) if the conditions are acceptable and it works on supported devices/OS versions — chris, Mar 12 '18 at 18:58

score 3 · Accepted Answer · edited Feb 17 '19 at 09:22

3

If your app is a device admin you can lock the screen with DevicePolicyManager.lockNow()

You can use this snippet (after setting the Device Admin part):

DevicePolicyManager manager = ((DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE));
manager.lockNow();

edited Feb 17 '19 at 09:22

Moshe Slavin

answered Mar 12 '18 at 18:58

0x7067

Does that actually turn the screen off or just lock the phone? The way I saw it, the question was focused around the third point (and all three together are too broad for one question) – chris Mar 12 '18 at 18:59
It does both, actually. It turns the screen off and locks the device. – 0x7067 Mar 12 '18 at 19:04
This requires a deprecated "device admin" option. Any other ideas? – Addev Mar 12 '18 at 19:14
Not that I'm aware :( – 0x7067 Mar 12 '18 at 19:25
deprecated what @Addev? this is still working correctly – Alberto M May 13 '21 at 14:00

1 Answers1