Android Alarm Manager Example | How to Start and Stop Alarm Manager in Android | Notification Manager Example in Android

Hello Friend,

Today I am going to share code for "Create Alarm Manager in Android". And Notification Manager with sound and vibration.

EDIT: stop was not working

1)MainActivity-


package com.manish.alarmmanager;

import java.util.Calendar;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

/**
 *
 * @author manish
 *
 */

public class MainActivity extends Activity implements OnClickListener{

Button btnStartAlarm,btnStopAlarm;
Context context;
static PendingIntent pendingIntent;
static AlarmManager alarmManager;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context=MainActivity.this;


Intent intentsOpen = new Intent(this, AlarmReceiver.class);
intentsOpen.setAction("com.manish.alarm.ACTION");
pendingIntent = PendingIntent.getBroadcast(this,111, intentsOpen, 0);
alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);


btnStartAlarm=(Button)findViewById(R.id.button1);
btnStopAlarm=(Button)findViewById(R.id.button2);

btnStartAlarm.setOnClickListener(this);
btnStopAlarm.setOnClickListener(this);

}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(v==btnStartAlarm){
fireAlarm();
}
if(v==btnStopAlarm){
stopAlarm();
}
}
public void fireAlarm() {
/**
* call broadcost reciver
*/
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), 10000, pendingIntent);


}
public void stopAlarm(){
alarmManager.cancel(pendingIntent);



}


}

3)OutPut.java

package com.manish.alarmmanager;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.widget.TextView;

public class OutPut extends Activity {

TextView textmessage;

String stringValue;

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_output);

textmessage = (TextView) findViewById(R.id.textView1);

Intent intent = getIntent();

stringValue = intent.getStringExtra("content");

textmessage.setText(stringValue);

System.out.println(stringValue);

}

}

4)Manifest.xml

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

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

    package="com.manish.alarmmanager"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

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

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name="com.manish.alarmmanager.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>

        <activity android:name="com.manish.alarmmanager.OutPut" />

        <receiver android:name=".AlarmReceiver" >

            <intent-filter>

                <action android:name="com.manish.alarm.ACTION" />

            </intent-filter>

        </receiver>

    </application>

</manifest>

DOWNLOAD ZIP CODE

Thanks!