Thanks. 2009/7/15 Dianne Hackborn <[email protected]>
> 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 > > So, in Application#onCreate, I should 1. Get PackageManager 2. call getActivityInfo (ComponentName<http://developer.android.com/reference/android/content/ComponentName.html>className, int flags)by specifying the className to my activity(I have specify a different process name) 3. get the processName But this sounds that we only get the process' name for that Component, not the running activity. > > 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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