Screen Wake Sleep Event Listner Service - Android Example

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Some times we  have requirement to make less battery consumption then you can stop your services when phone is going to sleep mode and again start your services when phone is going to wake.

Steps :

   1. Create a service inside main activity to get screen wake / sleep broadcast events.
   2. Create a broadcast receiver inside service to get screen wake / sleep events.
   3. Send screen wake/sleep value from broadcast receiver to Service.

Project Structure :

File : AndroidMainifest.xml

Define AEScreenOnOffService service in mainifest file.

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.androidexample.screenonoff"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

         

        <activity

            android:name="com.androidexample.screenonoff.ScreenOnOff"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

         

        <service android:name="com.androidexample.screenonoff.AEScreenOnOffService">

            <intent-filter>

                <action android:name="com.androidexample.screenonoff.AEScreenOnOffService" />

            </intent-filter>

        </service>

         

         

  </application>

</manifest>

File : src/ScreenOnOff.java

import android.os.Bundle; import android.app.Activity; import android.content.Intent; public class ScreenOnOff extends Activity {     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_screen_on_off);                   // Start AEScreenOnOffService Service                   Intent i0 = new Intent();         i0.setAction("com.androidexample.screenonoff.AEScreenOnOffService");         startService(i0);               }         }

File : src/AEScreenOnOffService.java

Create service(AEScreenOnOffService.java) which will take care of screen wake sleep mode.

import android.app.Service;

import android.content.BroadcastReceiver;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.IBinder;

import android.util.Log;

import android.widget.Toast;

public class AEScreenOnOffService extends Service {

    BroadcastReceiver mReceiver=null;

     

        @Override

        public void onCreate() {

            super.onCreate();

             

            // Toast.makeText(getBaseContext(), "Service on create", Toast.LENGTH_SHORT).show();

             

            // Register receiver that handles screen on and screen off logic

            IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);

            filter.addAction(Intent.ACTION_SCREEN_OFF);

            mReceiver = new AEScreenOnOffReceiver();

            registerReceiver(mReceiver, filter);

             

        }

        @Override

        public void onStart(Intent intent, int startId) {

             

            boolean screenOn = false;

             

            try{

                // Get ON/OFF values sent from receiver ( AEScreenOnOffReceiver.java )

                screenOn = intent.getBooleanExtra("screen_state", false);

                 

            }catch(Exception e){}

             

             //  Toast.makeText(getBaseContext(), "Service on start :"+screenOn,

                    //Toast.LENGTH_SHORT).show();

             

            if (!screenOn) {

                 

                // your code here

                // Some time required to start any service

                Toast.makeText(getBaseContext(), "Screen on, ", Toast.LENGTH_SHORT).show();

             

            } else {

                 

                // your code here

                // Some time required to stop any service to save battery consumption

                Toast.makeText(getBaseContext(), "Screen off,", Toast.LENGTH_SHORT).show();

            }

        }

        @Override

        public IBinder onBind(Intent intent) {

            // TODO Auto-generated method stub

            return null;

        }

         

        @Override

        public void onDestroy() {

             

            Log.i("ScreenOnOff", "Service  distroy");

            if(mReceiver!=null)

             unregisterReceiver(mReceiver);

                 

        }

}

File : src/AEScreenOnOffReceiver.java

Get screen wake sleep mode event broadcast and send received data again to service (AEScreenOnOffService.java)

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

public class AEScreenOnOffReceiver extends BroadcastReceiver {

        private boolean screenOff;

        @Override

        public void onReceive(Context context, Intent intent) {

             

            //Toast.makeText(context, "BroadcastReceiver", Toast.LENGTH_SHORT).show();

             

             

            if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {

                 

                screenOff = true;

                 

            } else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {

                 

                screenOff = false;

                 

            }

             

            // Toast.makeText(context, "BroadcastReceiver :"+screenOff, Toast.LENGTH_SHORT).show();

             

            // Send Current screen ON/OFF value to service

            Intent i = new Intent(context, AEScreenOnOffService.class);

            i.putExtra("screen_state", screenOff);

            context.startService(i);

        }

    }

OUTPUT: