Disable sleep on certain activity

Question

Is there any way to disable sleep of android mobile phone when user is in certain activity.

I want to disable screen time out when user is in main activity.

Is there any way to do it? Don't know if it is possible or not?

score 49 · Accepted Answer · answered Nov 03 '12 at 13:21

49

Try this.

 @Override
 protected void onCreate(Bundle icicle) 
 {
     super.onCreate(icicle);
     getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 }

answered Nov 03 '12 at 13:21

Chirag

56,621
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11

Or, use `android:keepScreenOn="true"` on some widget in the layout, or use `setKeepScreenOn(true)` from Java (called on some `View` in the activity). – CommonsWare Nov 03 '12 at 13:22

score 7 · Answer 2 · edited Dec 06 '16 at 20:09

7

I am using this:

@Override
protected void onCreate(Bundle icicle) 
{
      super.onCreate(icicle);
      getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}

Don't forget to place the permission in the manifest

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

edited Dec 06 '16 at 20:09

Skeets

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answered Nov 04 '14 at 03:28

Ronald Coarite

4,460
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I don't think you need to use the WAKE_LOCK permission in the manifest to use [this window flag](http://stackoverflow.com/questions/3723634/how-do-i-prevent-an-android-device-from-going-to-sleep-programmatically). – VinceFior Mar 20 '16 at 01:48

score 7 · Answer 3 · answered Jul 19 '18 at 05:12

7

Best way just add

android:keepScreenOn="true"

to the parent layout of that activity.

answered Jul 19 '18 at 05:12

Anuraag Patil

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2

score 3 · Answer 4 · answered Aug 31 '17 at 08:40

If you just want to prevent the sleep mode on a specific View, just call setKeepScreenOn(true) on that View or set the keepScreenOn property to true. This will prevent the screen from going off while the View is on the screen. No special permission required for this.

score 2 · Answer 5 · edited Sep 22 '14 at 10:51

You can use the following code to keep screen on in a certain function as :

PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "My Tag");
wl.acquire();
   //..screen will stay on during this section..
wl.release();

This will get the power service and acquire its attention then release it after your code is done

Disable sleep on certain activity

5 Answers5