Prevent screen from locking on Android-CodePudding

` android xamarin code

        lockctl = ((PowerManager)GetSystemService(Android.Content.Context.PowerService)).NewWakeLock(
           WakeLockFlags.Partial, "tag"); //cpu  on
        lockctl.Acquire();

        WifiManager wifi = ((WifiManager)GetSystemService(Android.Content.Context.WifiService));
        lockwifi = wifi.CreateWifiLock(Android.Net.WifiMode.Full, "wifilock");
        lockwifi.SetReferenceCounted(true);
        lockwifi.Acquire();

I am making a cctv app. The problem is that the screen turns off after a day. I want to keep this screen on.

plz help me

I want the screen to stay on even after several days

PLZ HELP ME MY APP SOLUTION

CodePudding user response：

Here is the code you can use to keep the screen awake and never goes off while your application is running.

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

This is one of the flag we can set to make the screen awake.

Put this inside your activity ex:- MainActivity inside onCreate().

CodePudding user response：

If your app is running foreground, you can keep the screen on by add the following code into the each activity's OnCreate method of your project:

        protected override void OnCreate(Bundle savedInstanceState)
        {
             ....
          this.Window.AddFlags(Android.Views.WindowManagerFlags.KeepScreenOn);
        }

Or you can just add the android:keepScreenOn="true" in the every layout.xml file, such as:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:keepScreenOn="true"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
</RelativeLayout>

For more information, you can check the offical document about the keeping screen on.