On Tue, Jul 14, 2009 at 12:59 PM, magicpig <[email protected]> wrote:
> Can you provide the APIs to get the ActivityInfo? http://developer.android.com/reference/android/content/pm/PackageManager.html#getActivityInfo%28android.content.ComponentName,%20int%29 > > really seems like a hack. Why not have a single Application object, that > > allows others to register to receive the callbacks they are interested > in? > It seems that Application class is the first one to run when the > application starts. > Here,I assume that others mean all the components including activities/ > services/... > So, would you mind give out an example for it? Just write a single CustomApplication class everyone uses, with a method to add a callback for onLowMemory(). For creation, us normal Java stuff: class MyGlobals { static MyGlobals sGlobals; static MyGlobals getInstance() { // Note: use synchronization if this will be accessed from multiple threads. if (sGlobals != null) return sGlobals; sGlobals = new MyGlobals(); return sGlobals; } } > > > Really appreciate the help > > > > (And honestly, you don't need the Application object. Stuff you do in > > onCreate() you can do the first time someone accesses whatever global > object > > they want... which can actually be better, to avoid initializing things > > that you don't need. And there is also a broadcast that gets sent when > > onLowMemory is called, so you can just register for that.) > > > > > > > > On Tue, Jul 14, 2009 at 11:35 AM, magicpig <[email protected]> > wrote: > > > On Tue, Jul 14, 2009 at 12:12 AM, magicpig <[email protected]> > > > wrote: > > > > > Thanks Dianne for the quick reply. > > > > > My two Application.java do some more things than having the > > > statics: > > > 1. own the ability to store current activity for use in all the > > > activities in the same process. (In the former description, I just > > > talked about two for simple). > > > 2. Creating some instances for later use(maybe can be moved to > > > statics) > > > > > So, if there is a way for replacing this easily, I am happy to do. > > > > > BTW, I think we can read the process name, right? > > > > > Thanks a again. > > > > > On Jul 15, 1:58 am, magicpig <[email protected]> wrote: > > > > Thanks for the reply. > > > > > > I am trying hard to merge them together and the Application logic > > > > seems a little more than setting the globals, such performing > > > > differently on onLowMemory, onTerminate and onConfigurationChanged. > > > > > > So,is it possible to get the intent that starts the activity or the > > > > different process name in Application#onCreate? > > > > > > Thanks > > > > > > On Jul 14, 2:20 pm, Dianne Hackborn <[email protected]> wrote: > > > > > > > Sorry, you can't do that. There are really very few reasons to > have a > > > > > custom Application anyway. I would generally suggest staying away > from > > > it, > > > > > and just using statics for your globals. > > > > > > > On Mon, Jul 13, 2009 at 11:17 PM, magicpig <[email protected]> > > > wrote: > > > > > > HI, > > > > > > > > I need two activities run in different processes in the > same > > > > > > application. Now I have made it work by specifying the different > > > > > > process name in "android:process". > > > > > > > > But I met a problem, from > > > > >http://developer.android.com/guide/topics/manifest/application-elemen. > .. > > > > > > , > > > > > > we have only one superclass of Application will run before the > > > > > > activity starts(I have tested it, and each time a after new > processes > > > > > > start, this Application(its superclass) will run before > activity). > > > > > > But, my two activities have two different superclasses of > > > > > > Applications. So, how to make Applications for different > activities > > > > > > run for its corresponding activity? > > > > > > > > If there is no way to use different Application class for > > > > > > different activity, how can I make a flag for the common > Application > > > > > > superclass to judge which process(by getting its name) is > running? > > > > > > > > BTW, the two activities were on the separated development > flow > > > > > > and I am trying to merge them. > > > > > > > > Thanks a lot. > > > > > > > -- > > > > > Dianne Hackborn > > > > > Android framework engineer > > > > > [email protected] > > > > > > > Note: please don't send private questions to me, as I don't have > time > > > to > > > > > provide private support, and so won't reply to such e-mails. All > such > > > > > questions should be posted on public forums, where I and others can > see > > > and > > > > > answer them. > > > > -- > > Dianne Hackborn > > Android framework engineer > > [email protected] > > > > Note: please don't send private questions to me, as I don't have time to > > provide private support, and so won't reply to such e-mails. All such > > questions should be posted on public forums, where I and others can see > and > > answer them. > -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. 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