Android Alarm

Android Alarm Example – Code

MainCLASS

package com.example.malik.javatpoint;

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

public class MainActivity extends Activity {
Button b1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1 = (Button) findViewById(R.id.button1);

b1.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
startAlert();
}
});

}

public void startAlert() {
EditText text = (EditText) findViewById(R.id.time);
int i = Integer.parseInt(text.getText().toString());
Intent intent = new Intent(this, MyBroadcastReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 234324243, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (i * 1000), pendingIntent);
Toast.makeText(this, “Alarm set in ” + i + ” seconds”, Toast.LENGTH_LONG).show();
}

}

MainXML

<?xml version=”1.0″ encoding=”utf-8″?>
<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: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”
app:layout_behavior=”@string/appbar_scrolling_view_behavior”
tools:context=”com.example.malik.javatpoint.MainActivity”
tools:showIn=”@layout/activity_main”
>

<EditText
android:id=”@+id/time”
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:layout_alignParentLeft=”true”
android:layout_alignParentTop=”true”
android:layout_marginTop=”28dp”
android:ems=”10″
android:hint=”Number of seconds”
android:inputType=”numberDecimal” />

<Button
android:id=”@+id/button1″
android:layout_width=”wrap_content”
android:layout_height=”wrap_content”
android:layout_alignRight=”@+id/time”
android:layout_below=”@+id/time”
android:layout_marginRight=”60dp”
android:layout_marginTop=”120dp”
android:text=”Start” />

</RelativeLayout>

 

MyBroadcastReceiver CLASS

package com.example.malik.javatpoint;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.media.MediaPlayer;
import android.widget.Toast;

public class MyBroadcastReceiver extends BroadcastReceiver {
MediaPlayer mp;

@Override
public void onReceive(Context context, Intent intent) {
mp = MediaPlayer.create(context, R.raw.btn1);
mp.start();
Toast.makeText(context, “Alarm….”, Toast.LENGTH_LONG).show();
}
}

 

Manifest FILE

<?xml version=”1.0″ encoding=”utf-8″?>
<manifest xmlns:android=”http://schemas.android.com/apk/res/android”
package=”com.example.malik.javatpoint”>

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

<application
android:allowBackup=”true”
android:icon=”@mipmap/ic_launcher”
android:label=”@string/app_name”
android:supportsRtl=”true”
android:theme=”@style/AppTheme”>
<activity
android:name=”.MainActivity”
android:label=”@string/app_name”
android:theme=”@style/AppTheme.NoActionBar”>
<intent-filter>
<action android:name=”android.intent.action.MAIN” />

<category android:name=”android.intent.category.LAUNCHER” />
</intent-filter>
</activity>

<receiver android:name=”MyBroadcastReceiver” />
</receiver>

</application>

</manifest>

 

Output :

pic

 

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