Android Program to Create a New Thread for Service Tasks

Here is source code of the Program to Create a New Thread for Service Tasks in Android. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.

MainActivity.java

package com.example.create_thread_service_task;
 
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
 
public class MainActivity extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button start = (Button) findViewById(R.id.start_service);
        start.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                startService(new Intent(MainActivity.this, MyService.class));
            }
        });
        Button stop = (Button) findViewById(R.id.stopService);
        stop.setOnClickListener(new View.OnClickListener() {
 
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                stopService(new Intent(MainActivity.this, MyService.class));
            }
        });
 
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
}

MyService.java

package com.example.create_thread_service_task;
 
import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;
 
public class MyService extends Service {
 
    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }
 
    @Override
    public void onCreate() {
        Toast.makeText(this, " MyService Created ", Toast.LENGTH_LONG).show();
    }
 
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Toast.makeText(this, " MyService Started", Toast.LENGTH_LONG).show();
        final int currentId = startId;
 
        Runnable r = new Runnable() {
            public void run() {
 
                for (int i = 0; i < 3; i++) {
                    long endTime = System.currentTimeMillis() + 10 * 1000;
 
                    while (System.currentTimeMillis() < endTime) {
                        synchronized (this) {
                            try {
                                wait(endTime - System.currentTimeMillis());
                            } catch (Exception e) {
                            }
                        }
                    }
                    Toast.makeText(MyService.this, " Service Running",
                            Toast.LENGTH_SHORT).show();
                }
                stopSelf();
            }
        };
 
        Thread t = new Thread(r);
        t.start();
        return Service.START_STICKY;
    }
 
    @Override
    public void onDestroy() {
        Toast.makeText(this, "MyService Stopped", Toast.LENGTH_LONG).show();
    }
 
}

Activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
 
    <Button
        android:id="@+id/start_service"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginTop="96dp"
        android:text="Start Service" />
 
    <Button
        android:id="@+id/stopService"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@+id/start_service"
        android:layout_alignParentRight="true"
        android:layout_below="@+id/start_service"
        android:layout_marginTop="86dp"
        android:text="Stop Service" />
 
</RelativeLayout>

AndroidManifest.xml

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.create_thread_service_task"
    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.example.create_thread_service_task.MainActivity"
            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=".MyService"
            android:enabled="true" />
    </application>
 
</manifest>

Screenshot_2013-10-05-15-12-36

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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