Android Starting Service at Boot Time How to restart service class after device Reboot

Question

I need to start a service at boot time  I searched a lot  They are talking about Broadcastreceiver  As I am new to android development  I didn t get a clear picture about services on Android  Please provide some source code

User · Answer

First register a receiver in your manifest.xml file:

    <receiver android:name="com.mileagelog.service.Broadcast_PowerUp" >
        <intent-filter>
            <action android:name="android.intent.action.ACTION_POWER_CONNECTED" />
            <action android:name="android.intent.action.ACTION_POWER_DISCONNECTED" />
        </intent-filter>
    </receiver>

and then write a broadcast for this receiver like:

public class Broadcast_PowerUp extends BroadcastReceiver {

  @Override
  public void onReceive(Context context, Intent intent) {
    String action = intent.getAction();

    if (action.equals(Intent.ACTION_POWER_CONNECTED)) {
        Toast.makeText(context, "Service_PowerUp Started",
                Toast.LENGTH_LONG).show();


    } else if (action.equals(Intent.ACTION_POWER_DISCONNECTED)) {



        Toast.makeText(context, "Service_PowerUp Stoped", Toast.LENGTH_LONG)
        .show();
    }
  }
}

User · Answer

It s possible to register your own application service for starting   automatically when the device has been booted  You need this  for   example  when you want to receive push events from a http server and   want to inform the user as soon a new event occurs  The user doesn t   have to start the activity manually before the service get started         It s quite simple  First give your app the permission   RECEIVE BOOT COMPLETED  Next you need to register a BroadcastReveiver    We call it BootCompletedIntentReceiver       Your Manifest xml should now look like this    lt manifest xmlns android  http   schemas android com apk res android   package  com jjoe64  gt    lt uses-permission android name  android permission RECEIVE BOOT COMPLETED   gt    lt application gt     lt receiver android name   BootCompletedIntentReceiver  gt      lt intent-filter gt       lt action android name  android intent action BOOT COMPLETED    gt      lt  intent-filter gt     lt  receiver gt     lt service android name   BackgroundService   gt    lt  application gt   lt  manifest gt        As the last step you have to implement the Receiver  This receiver   just starts your background service   package com jjoe64   import android content BroadcastReceiver  import android content Context  import android content Intent  import android content SharedPreferences  import android preference PreferenceManager   import com jjoe64 BackgroundService   public class BootCompletedIntentReceiver extends BroadcastReceiver     Override  public void onReceive Context context  Intent intent      if   android intent action BOOT COMPLETED  equals intent getAction          Intent pushIntent   new Intent context  BackgroundService class      context startService pushIntent               From http   www jjoe64 com 2011 06 autostart-service-on-device-boot html

User · Answer

Your receiver   public class MyReceiver extends BroadcastReceiver            Override     public void onReceive Context context  Intent intent          Intent myIntent   new Intent context  YourService class        context startService myIntent              Your AndroidManifest xml    lt  xml version  1 0  encoding  utf-8   gt   lt manifest xmlns android  http   schemas android com apk res android        package  com broadcast receiver example        android versionCode  1        android versionName  1 0  gt       lt application android icon   drawable icon  android label   string app name  android debuggable  true  gt            lt activity android name   BR Example                    android label   string app name  gt               lt intent-filter gt                   lt action android name  android intent action MAIN    gt                   lt category android name  android intent category LAUNCHER    gt               lt  intent-filter gt           lt  activity gt        lt  -- Declaring broadcast receiver for BOOT COMPLETED event  -- gt           lt receiver android name   MyReceiver  android enabled  true  android exported  false  gt               lt intent-filter gt                   lt action android name  android intent action BOOT COMPLETED   gt               lt  intent-filter gt           lt  receiver gt        lt  application gt        lt  -- Adding the permission -- gt       lt uses-permission android name  android permission RECEIVE BOOT COMPLETED    gt    lt  manifest gt

User · Answer

Also register your created service in the Manifest and uses-permission as   lt application     gt      lt service android name   MyBroadcastReceiver  gt           lt intent-filter gt               lt action android name  com example MyBroadcastReciver   gt           lt  intent-filter gt      lt  service gt   lt  application gt   lt uses-permission android name  android permission RECEIVE BOOT COMPLETED   gt    and then in braod cast Reciever call your service  public class MyBroadcastReceiver extends BroadcastReceiver         Override     public void onReceive Context context  Intent intent                Intent myIntent   new Intent context  MyService class           context startService myIntent

User · Answer

Create a BroadcastReceiver and register it to receive ACTION BOOT COMPLETED  You also need RECEIVE BOOT COMPLETED permission  Read  Listening For and Broadcasting Global Messages  and Setting Alarms

User · Answer

Pls check JobScheduler for apis above 26  WakeLock was the best option for this but it is deprecated in api level 26 Pls check this link if you consider api levels above 26 https   developer android com reference android support v4 content WakefulBroadcastReceiver html startWakefulService android content Context  20android content Intent   It says     As of Android O  background check restrictions make this class no longer generally useful   It is generally not safe to start a service from the receipt of a broadcast  because you don t have any guarantees that your app is in the foreground at this point and thus allowed to do so   Instead  developers should use android app job JobScheduler to schedule a job  and this does not require that the app hold a wake lock while doing so  the system will take care of holding a wake lock for the job      so as it says cosider JobScheduler https   developer android com reference android app job JobScheduler  if it is to do something than to start and to keep it you can receive the broadcast ACTION BOOT COMPLETED  If it isn t about foreground pls check if an Accessibility service could do  another option is to start an activity from broadcast receiver and finish it after starting the service within onCreate     since newer android versions doesnot allows starting services from receivers

User · Answer

To Restart service in Android O or more ie OS  28 Use this code KOTLIN VERSION 1  Add permission in manifest   lt uses-permission android name  android permission RECEIVE BOOT COMPLETED    gt    2  Create a Class and extend it with BroadcastReceiver  import android content BroadcastReceiver import android content Context import android content Intent import android os Build import android util Log import androidx core content ContextCompat    class BootCompletedReceiver   BroadcastReceiver         override fun onReceive context  Context  arg1  Intent             Log d  BootCompletedReceiver    starting service              if  Build VERSION SDK INT  gt   Build VERSION CODES O                ContextCompat startForegroundService context  Intent context  YourServiceClass  class java             else               context startService Intent context  YourServiceClass  class java                       3  Declare in Manifest file like this under application tag   lt receiver android name   utils BootCompletedReceiver   gt           lt intent-filter gt               lt action android name  android intent action BOOT COMPLETED    gt               lt action android name  android intent action QUICKBOOT POWERON    gt           lt  intent-filter gt       lt  receiver gt

User · Answer

Most the solutions posted here are missing an important piece  doing it without a wake lock runs the risk of your Service getting killed before it is finished processing  Saw this solution in another thread  answering here as well    Since WakefulBroadcastReceiver is deprecated in api 26 it is recommended  for API Levels below 26   You need to obtain a wake lock   Luckily  the Support library gives us a class to do this   public class SimpleWakefulReceiver extends WakefulBroadcastReceiver        Override     public void onReceive Context context  Intent intent               This is the Intent to deliver to our service          Intent service   new Intent context  SimpleWakefulService class               Start the service  keeping the device awake while it is launching          Log i  SimpleWakefulReceiver    Starting service       SystemClock elapsedRealtime             startWakefulService context  service             then  in your Service  make sure to release the wake lock        Override     protected void onHandleIntent Intent intent               At this point SimpleWakefulReceiver is still holding a wake lock            for us   We can do whatever we need to here and then tell it that            it can release the wakelock               Log i  SimpleWakefulReceiver    Completed service       SystemClock elapsedRealtime             SimpleWakefulReceiver completeWakefulIntent intent           Don t forget to add the WAKE LOCK permission and register your receiver in the manifest    lt uses-permission android name  android permission RECEIVE BOOT COMPLETED    gt   lt uses-permission android name  android permission WAKE LOCK    gt         lt service android name   SimpleWakefulReceiver  gt       lt intent-filter gt           lt action android name  com example SimpleWakefulReceiver   gt       lt  intent-filter gt   lt  service gt

User · Answer

you should register for BOOT COMPLETE as well as REBOOT   lt receiver android name   Services BootComplete  gt           lt intent-filter gt               lt action android name  android intent action BOOT COMPLETED   gt               lt action android name  android intent action REBOOT   gt           lt  intent-filter gt       lt  receiver gt

[android] Android Starting Service at Boot Time , How to restart service class after device Reboot?

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