Android Competency Center

Thanks for this tutorial! Android tuts are scarce and mostly outdated.

I’m trying to construct an OnListItemClick that opens a simple Alert Dialog with the positive button setting a “one time alarm”. Here’s what I have:

[code]
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);

AlertDialog.Builder SetReminder = new AlertDialog.Builder(this);
//*this* is the Activity because it needs the Context.
SetReminder.setIcon(R.drawable.ic_dialog_menu_generic);
SetReminder.setTitle("Set Reminder?");
SetReminder.setMessage("Would you like to set a reminder?");
AlertDialog ad = SetReminder.create();
ad.requestWindowFeature(Window.FEATURE_LEFT_ICON);
SetReminder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Intent intent = new Intent(this, OnetimeAlarmReceiver.class);
PendingIntent sender = PendingIntent.getBroadcast(context, REQUEST_CODE, intent, 0);

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (5 * 1000), sender);

Toast.makeText(this, "Alarm Set", Toast.LENGTH_LONG).show();
}

});
SetReminder.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(getBaseContext(), "Reminder Not Set", Toast.LENGTH_SHORT).show();
}
});
SetReminder.show();
}

public class OnetimeAlarmReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "Alarm Worked", Toast.LENGTH_LONG).show();
}
}
[/code]

Any help, hints or links would be greatly appreciated.

Thanks in advance,
Paul

Could someone also tell me what intent filters or modifications one must make to the manifest.xml to get the “Alarm Clock” example working?

Thanks

Okay so I got the alarm/notification working based on your example (thanks), albeit, not from the AlertDialog. I’m no longer interested in my above request.

Instead, I was wondering if its possible to have an AlertDialog built and displayed in a BroadcastReciever. I’d like a dialog to show at the same time as the notification.

Any advice, help?

Thought I’d pay it forward:

To use standard sound, vibration, and flashing green led light notifications replace:

notification.flags = Notification.FLAG_INSISTENT;

notification.sound = (Uri) intent.getParcelableExtra(”Ringtone”);
notification.vibrate = (long[]) intent.getExtras().get(”vibrationPatern”);

with:

notification.flags = Notification.FLAG_ONLY_ALERT_ONCE | Notification.FLAG_SHOW_LIGHTS;
notification.ledARGB = Color.GREEN;
notification.ledOnMS = 1000;
notification.ledOffMS = 500;
notification.defaults = Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE;

- Paul

Well done,

just one question: how can i get the notification.sound to just play once?

Nice tutorial, but how can i set the alarm to go off at a certain time. I have some times stored in a database and would like the alarm to go off at these times.

@Sam
I would love to get that to work too!

Hmm i couldnt get the database to work. So i just set the times manually now using Calendar and then setting the day,hour,time ect.

Sam :
Nice tutorial, but how can i set the alarm to go off at a certain time. I have some times stored in a database and would like the alarm to go off at these times.

I’m looking for a solution to the same problem… I want some of my alarms during the day to only ring once and go off instead of the alarm sound looping over and over again. Please help.

Thanks.

Sorry I quoted the wrong comment. Meant to quote comment no 6 by Sam.

chris :
Well done,
just one question: how can i get the notification.sound to just play once?

Looking for a solution to the same problem.

how can i set more than one alarm and listout those alarms

First add this code in your start.java class(Main Activity class)-

package com.wissen.alarm;

import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Toast;

public class Alarm extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Intent intent = new Intent(this, AlarmReceiver.class);

PendingIntent pendingIntent = PendingIntent.getBroadcast(this,001000,intent,0);

PendingIntent pendingIntent2 = PendingIntent.getBroadcast(this,002000,intent,0);

PendingIntent pendingIntent3 = PendingIntent.getBroadcast(this,003000,intent,0);

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (5 * 1000), pendingIntent);
Toast.makeText(this, “Alarm set 1″, Toast.LENGTH_LONG).show();

alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (5 * 1000), pendingIntent2);
Toast.makeText(this, “Alarm set 2″, Toast.LENGTH_LONG).show();

alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (5 * 1000), pendingIntent3);
Toast.makeText(this, “Alarm set 3″, Toast.LENGTH_LONG).show();
}
}

after this make sure that ,the BroadcastReceiver( AlarmReceiver) must be defined in the manifest.xml inside the application tag like this

to notify the multiple Alarms, your AlarmReceiver should be like this-

package com.wissen.alarm;

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

public class AlarmReceiver extends BroadcastReceiver {

static int count=1;
@Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, “Alarm worked -”+count, Toast.LENGTH_LONG).show();
count++;
}
}

Thank you very much for the help

Thanks a ton for this article!
Its simple, straight-forward and the best that i have read so far on Alarm!
You have made it so easy and understandable!

I am new to android so please bear with me.
1. After you set the alarm and kill the alarm clock( using taskiller) the alarm never goes off. why? I thought this was the idea behind intent and broadcast receivers. Also, can android kill the alarm because it require resources? is this possible?

3. I am currently writing a program handles the statues of the phone( rining, idle, in use, etc)
Again, if my program is killed by android memory management system, then It wouldn’t work.
can someone explain to me how can i make sure my program would run when there is incoming call even after android has killed it?

thank you

Does something need to be specified in the manifest.xml file for this to work? I’m trying everything I can think of, but I just can’t seem to get this working. Thanks

hi @Kevin
You need to make sure BroadcastReceiver( AlarmReceiver) must be defined in the manifest.xml inside the application tag like this

Same question as Kevin asked. What entries i should put in manifest.xml to make this work.
Can somebody please tell me what should be the which i have to specify in manifest.xml

Same question as Kevin asked. What entries i should put in manifest.xml to make this work.
Can somebody please tell me what should be the ‘intentname’ which i have to specify in manifest.xml
While answering please remove the ‘greater than’ and ‘less than’ signs..

Trying to figure out all the android stuff – brand new to it — and having to build a simple alarm clock but can’t find *any* source code for 2.01 — can anyone point me to a simple example source code?

how can I get the alarm icon in the statusbar? something in the manifest right?

Hi @Alioooop
to set the alarm icon in the statusbar, add Notification on AlarmReceiver intent class, used following code to show the alarm_icon,

//using notification manager
NotificationManager mNotificationManager = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);

int icon = R.drawable.alarm_icon;
CharSequence tickerText = “Hello”;
long when = System.currentTimeMillis();

Notification notification = new Notification(icon, tickerText, when);

Context context = getApplicationContext();
CharSequence contentTitle = “My notification”;
CharSequence contentText = “Hello World!”;
Intent notificationIntent = new Intent(this, AlarmReceiver.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);

notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);

final int HELLO_ID = 1;

mNotificationManager.notify(HELLO_ID, notification);

@mayur birari
that notification appears on the left side right? but I want to have a on the right ide like in the real alarm app! other third party apps have that so it should go