Get from Android BroadcastReciever to a UI

Question

I have a reciever that works well, but I can't seem to show a proper UI, although the toast appears correctly. As far as I can tell, this is caused by Android requiring the class to extend Activity, however, the class already extends BroadcastReciever, so I can't do this. So, I tried to do an Intent, but this failed too. There are no errors, but the screen doesn't show. Source code is below, and any help would be most appreciated.

Broadcast (Method in AndyRoidAlarm)

public void setAlarm(){
    Intent intent = new Intent(AndyRoidAlarm.this, Reciever.class);
    PendingIntent sender = PendingIntent.getBroadcast(AndyRoidAlarm.this,
                0, intent, 0);

    // We want the alarm to go off 30 seconds from now.
    Calendar calendar = Calendar.getInstance();
    calendar.setTimeInMillis(System.currentTimeMillis());
    calendar.add(Calendar.SECOND, 10);

    // Schedule the alarm!
    AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
    am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);

    // Tell the user about what we did.
    if (mToast != null) {
        mToast.cancel();
    }
    mToast = Toast.makeText(AndyRoidAlarm.this, "Alarm Scheduled for 30secs", Toast.LENGTH_LONG);
    mToast.show();
}

Reciever

public class Reciever extends BroadcastReceiver
{
    @Override
    public void onReceive(Context context, Intent intent)
    {
        Toast.makeText(context, "Alarm Recieved", Toast.LENGTH_LONG).show();
        Intent i = new Intent();
        i.setClass(context, AlarmRing.class);
    }
}

Reciever V2

@Override
    public void onReceive(Context context, Intent intent)
    {
        Toast.makeText(context, "Alarm Recieved", Toast.LENGTH_LONG).show();
        Intent foo = new Intent(context, AlarmRing.class);
        //foo.putExtra("id", "id");//example, if you wish to pass custom variables
        context.startActivity(foo);
    }

AlarmRing

public class AlarmRing extends Activity {

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

        MediaPlayer mp = MediaPlayer.create(getBaseContext(), R.raw.sweetchild);
        mp.start();
    }

Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.comaad.andyroidalarm"
      android:versionCode="1"
      android:versionName="1.0">
    <application android:icon="@drawable/icon" android:label="@string/app_name">
        <activity android:name=".AndyRoidAlarm"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                   <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name="com.comaad.andyroidalarm.Reciever" android:enabled="true">
            <intent-filter>
                <action android:name="com.comaad.andyroidalarm.Reciever"></action>
            </intent-filter>
        </receiver>
        <activity android:name=".AlarmRing"></activity>
    </application>
</manifest> 
}

Answer 1

Intent foo = new Intent(this, AlarmRing.class);
foo.putExtra("id", id);//example, if you wish to pass custom variables
this.startActivity(foo);

Edit
Check out this example to use BroadcastReciever within an Activity. http://almondmendoza.com/2009/01/04/getting-battery-information-on-android/

Answer 2

In a BroadcastReceiver onReceive() method, if you need a Context (e.g., to create an Intent), use the Context that is passed to you as a parameter of onReceive(). You even have this code in your onReceive() -- you're just not doing anything with the resulting Intent (e.g., calling startActivity()).

Answer 3

you have not mentioned R.Layout.Alarm field anywhere.. so how will i call it. please help