Question

Can someone give me a piece of code which can use the android content observer to detect changes in the ringer volume and log it please??

Answer 1

May be a little bit late. But I implemented the following solution. Code below will only functioning on Android < v4 devices. I am looking for a solution for the v4 devices. Maybe someone knows?:

SettingsContentObserver mSettingsContentObserver = new SettingsContentObserver(new Handler());
_context.getApplicationContext().getContentResolver().registerContentObserver(android.provider.Settings.System.CONTENT_URI, true, mSettingsContentObserver);

public class SettingsContentObserver extends ContentObserver
{

    public SettingsContentObserver(Handler handler)
    {
        super(handler);
    }

    @Override
    public boolean deliverSelfNotifications()
    {
        return super.deliverSelfNotifications();
    }

    @Override
    public void onChange(boolean selfChange)
    {
        super.onChange(selfChange);

        try
        {
            long newRingerVolume = Settings.System.getLong(_context.getContentResolver(), Settings.System.VOLUME_RING);             
        }
        catch (SettingNotFoundException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}