<receiver android:name=".AlarmReceiver">
      <intent-filter>
        <action android:name="CLOCK" />
      </intent-filter>
</receiver>

public class AlarmReceiver extends BroadcastReceiver {
  private int _id;
  private String str;
  @Override
  public void onReceive(Context context, Intent intent) {
    _id = intent.getIntExtra("ID", -1);
    Intent i = new Intent("CLOCK");
    i.setClass(context, NoteEditor.class);
    i.putExtra("ID", _id);
    String str = intent.getStringExtra("NOTE");
    Toast.makeText( context, str, Toast.LENGTH_SHORT).show();
    i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(i);
  }
}

final AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
Calendar alarmCalendar = Calendar.getInstance();

alarmCalendar.set(mYear, mMonth-1, mDay, mHour, mMinute,0);
Intent i = new Intent("CLOCK");
i.setClass(this, AlarmReceiver.class);
i.putExtra("ID", _id);
String note="notes";
i.putExtra("NOTE",note);

am.set(AlarmManager.RTC_WAKEUP, alarmCalendar.getTimeInMillis(), pi);