Launch app at a user specified time?

I have an app that plays radio stations, and I now want to integrate an alarm clock such that it plays a radio station when the alarm goes off. I have been looking into the Alarm Manager, which seems to be the best way to do it.

My app has an alarm button which calls a dialog to set the alarm. If an alarm is set, I need to have my app start at the specified time. However, I am having trouble with this section of code:

Intent intent = new Intent("some Context", null, null, MainActivity.class);
PendingIntent pendInt = PendingIntent.getBroadcast("some Context", 0, intent, 0);
AlarmManager alarmService = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmService.set(AlarmManager.RTC_WAKEUP, timeToSound, pendInt);

Specifically, I am confused about what context needs to be. I have seen many examples, but none really explain it in detail. I would appreciate it if someone could shed some light on this matter.

more code that might help...

@Override
    protected Dialog onCreateDialog(int id) {
        Dialog d = null;
        switch (id) {
        case LINEUP_DIALOG_ID:
            d = new LineupDialog(this);
            d.getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
            WindowManager.LayoutParams lp = d.getWindow().getAttributes();
            lp.dimAmount = 0.5f;
            d.getWindow().setAttributes(lp);
            break;

this calls my dialog^

private View.OnClickListener lineupAction = new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            //showAlarm();
            showDialog(LINEUP_DIALOG_ID);
        }
    };

both of these are in my mainActivity.

then i have an xml file that holds the layouts (can be provided if needed.. just allows the user to chose a time and checkbo开发者_如何转开发x, then save)

save button has an onclickListener--- it is in my LineupDialog class that extends my NavDialog, and my navdialog just extends Dialog.

---

Kyle,

It should be the package Context, but this can sometimes depend on where in your code you are creating the Intent and PendingIntent. Have you just tried this or getApplicationContext()?

---

turns out that i needed to make a new class also... the part of the context worked by making a variable, and just if anyone else needs it, here is my code for the new service that i had to make.

//imports here
public class AlarmService extends Service{

    @Override
    public IBinder onBind(Intent arg0) {
        // TODO Auto-generated method stub
        //System.out.println("hello im in the alarmService Binder");

        return null;
    }

    @Override
    public void onStart(Intent intent, int startid) {
        Intent mainAct = new Intent("android.intent.action.MAIN");
        //System.out.println("hello im in the alarmService onStart " + mainAct);
        mainAct.setClass(AlarmService.this, MainActivity.class);
        mainAct.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        mainAct.putExtra("alarm","true");
        startActivity(mainAct);
    }

    @Override
    public void onCreate() {
        //System.out.println("hello im in the alarmService onCreate");
        //code to execute when the service is first created
    }

}

then dont forget to add it to your manifest