You are right, activity takes more resources than view. But the difference between them is not significant enough for it to be your primary concern. If you only have two screens, then rather than focusing on optimizing memory and CPU, I suggest you make the code as simple as possible. So instead of two views in one activity, your code will be cleaner if your two screens are separated into two activities.
Yusuf Saib Android ·T· · ·Mobile· stick together The views, opinions and statements in this email are those of the author solely in their individual capacity, and do not necessarily represent those of T-Mobile USA, Inc. On Aug 1, 3:04 am, Michael Leung <[email protected]> wrote: > Thanks for that. > Previously, I got some misunderstand. > I think Activity will use more resources , so that is more prefer to switch > view rather than Activity. > > On Sat, Aug 1, 2009 at 12:34 AM, Balwinder Kaur (T-Mobile) < > > > > > > [email protected]> wrote: > > > It should be just fine to create a separate Activity for each screen > > and use Intents to invoke each Activity. > > > From the official documentation > >http://developer.android.com/guide/topics/fundamentals.html > > : > > > An activity presents a visual user interface for one focused endeavor > > the user can undertake. For example, an activity might present a list > > of menu items users can choose from or it might display photographs > > along with their captions. A text messaging application might have one > > activity that shows a list of contacts to send messages to, a second > > activity to write the message to the chosen contact, and other > > activities to review old messages or change settings. Though they work > > together to form a cohesive user interface, each activity is > > independent of the others. Each one is implemented as a subclass of > > the Activity base class. > > > Balwinder Kaur > > Open Source Development Center > > ·T· · ·Mobile· stick together > > > The views, opinions and statements in this email are those of the > > author solely in their individual capacity, and do not necessarily > > represent those of T-Mobile USA, Inc. > > > On Jul 30, 9:03 pm, Michael Leung <[email protected]> wrote: > > > I am a new to Android as well, but as far as I know, changing the view is > > > lighter than an activity. > > > > On Fri, Jul 31, 2009 at 12:41 PM, tinyang <[email protected]> wrote: > > > > Well, I was hoping to make the only existing activity one of many > > > > activities the user could choose from the main menu screen eventually. > > That > > > > is why I was thinking to add a main menu screen from which I could use > > > > buttond to add sccess to the other activity choices for the app. I'm > > open > > > > to suggestions though. > > > > > ------------------------------ > > > > *From:* [email protected] [mailto: > > > > [email protected]] *On Behalf Of *Michael Leung > > > > *Sent:* Thursday, July 30, 2009 9:29 PM > > > > *To:* [email protected] > > > > *Subject:* [android-beginners] Re: Change an app > > > > > should you change the view? instead of changing to another activity > > > > > On Fri, Jul 31, 2009 at 11:51 AM, tinyang <[email protected]> > > wrote: > > > > >> I have an app I wrote for Android. It has only one activity (one > > java > > > >> file) which is the only screen. I would like to add a main menu > > screen > > > >> which has a button that can take the user to the already existing > > activity. > > > >> What is the best way to do that? Thanks. > > > > >> -- > > > >> J > > > >> P Please don't print this e-mail unless you really need to. > > > > >> <http://www.crossloop.com/Teenah> > > > > >> -- > > > >> Regards, > > > >> Michael Leung > > > >>http://www.itblogs.info > > > >>http://www.michaelleung.info > > > > >> No virus found in this incoming message. > > > >> Checked by AVG -http://www.avg.com > > > >> Version: 8.0.169 / Virus Database: 270.13.24/2255 - Release Date: > > > >> 7/30/2009 6:09 PM > > > > -- > > > Regards, > > > Michael Leunghttp://www.itblogs.infohttp://www.michaelleung.info > > -- > Regards, > Michael Leunghttp://www.itblogs.infohttp://www.michaelleung.info --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" 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-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
