I agree with TreKing. Thanks, Justin Anderson MagouyaWare Developer http://sites.google.com/site/magouyaware
On Wed, Mar 9, 2011 at 5:35 PM, TreKing <[email protected]> wrote: > On Wed, Mar 9, 2011 at 4:30 PM, Kenny Riddile <[email protected]> wrote: > >> Assuming the singleton is modifiable via its interface, then for all >> intents and purposes, yes, they are. > > > Again, no. > > Singleton is a design pattern whose purpose is to simplify and control > access to a an object for which there is and will only be one instance of. > This instance is set once and used throughout. It does not vary or change. > It is not variable. > > Of course you can change the *state* of the singleton object, if that's > what you mean by "modifiable", but if you change the *value* of the object > itself, as one would do with global *variables*, it is no longer a > singleton. > > Even in the sense that the singleton state is modifiable, the whole point > of the singleton is to provide an interface through which this globally > accessible object, and its state, is manipulated. There is controlled > access. This is not the case with your run-of-mill, freely accessible global > variable. > > On Wed, Mar 9, 2011 at 6:11 PM, David Williams < > [email protected]> wrote: > > Ok, trying to do this but struggling. >> >> I created a class as follows: >> > > If all you're doing is defining some *constants* that are not going to > change, extending Application is way overkill. Especially since casting up > to your Application type every time you need something makes your code > horrendous to look at. > > You can just do this: > > class Constants > { > public static final String KEY = "MyKey"; > } > > Then do Constants.Key where you need it. Done. > > On Wed, Mar 9, 2011 at 6:11 PM, David Williams < > [email protected]> wrote: > > Sorry, this is just my lack of knowledge on Java here. I was hoping it was >> something like globalVars.getApiKey(), but that doesn't seem to work. > > > I highly recommend you brush up on Java, reviewing static and instance > level access of functions and data in particular. > > > ------------------------------------------------------------------------------------------------- > TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago > transit tracking app for Android-powered devices > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
