Alarm Activity with Help of BroadCast Receiver

Main Activity:-- 

public class MainActivity extends Activity {

Button b1;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        b1=(Button)findViewById(R.id.button1);

        

        b1.setOnClickListener(new OnClickListener()

        {

public void onClick(View v) 

{

EditText ed1 = (EditText) findViewById(R.id.editText1);

int i = Integer.parseInt(ed1.getText().toString());

   Intent intent = new Intent(getApplicationContext(), myBroadcastReceiver.class);

   PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 234324243, intent, 0);

   AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

   alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()

       + (i * 1000), pendingIntent);

   Toast.makeText(getApplicationContext(), "Alarm set in " + i + " seconds",Toast.LENGTH_LONG).show();

}

});

   

   }

}

BroadCast Receiver Activity :--

public class myBroadcastReceiver extends BroadcastReceiver {

@Override

public void onReceive(Context context, Intent intent) {

// TODO Auto-generated method stub

Toast.makeText(context,"get up",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:background="#00FFFF">

    <EditText

        android:id="@+id/editText1"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginTop="46dp"

        android:ems="15"

        android:hint="number of seconds"

        android:inputType="numberDecimal" >

        

    </EditText>

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/editText1"

        android:layout_below="@+id/editText1"

        android:layout_marginTop="36dp"

        android:onClick="startAlert"

        android:text="start Counter" />

</RelativeLayout>

Activity Manifest.xml:-- 

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

    package="com.example.broadcastreciever1"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="15" />

          <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/title_activity_main" >

            <intent-filter>

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

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

            </intent-filter>

        </activity>

        <receiver

            android:enabled="true" 

            android:name=".myBroadcastReceiver"></receiver>

    </application>

</manifest>