You can have as many handlers as needed, within reason. The work of dispatching messages to handlers is done by Looper, anyway.
And that's where I think your original issue has its roots. Posting a more exact message than "I get an error saying I need to call prepare *or something* since I cannot have more than one handler per thread *or something*." ( I am pretty sure what it is, but let's see the message first ) -- Kostya 30 ноября 2011 г. 16:35 пользователь John Goche <[email protected]>написал: > > Also, why would it be better to have one handler than multiple handlers > anyways > given that in some situations multiple handlers can compile? > > > On Wed, Nov 30, 2011 at 1:32 PM, John Goche <[email protected]>wrote: > >> >> Thank you TreKing for your advice, >> >> But then in my handleMessage I would have to check with >> >> if (inst instance of Foo) >> inst.foocallback(); >> else if (inst instanceof Bar) >> inst.barcallback(); >> else if (...) >> >> or is there a neater solution, perhaps using polymorphism or a design >> pattern of some sort >> so that my handleMessage does not quickly turn into a mess? >> >> Thanks, >> >> John Goche >> >> >> >> On Tue, Nov 29, 2011 at 11:02 PM, TreKing <[email protected]> wrote: >> >>> On Tue, Nov 29, 2011 at 3:46 PM, John Goche >>> <[email protected]>wrote: >>> >>>> The number of sprites is indefinite (could vary in number) but each >>>> needs to manage itself individually. On top of this the world has its >>>> own handler to manage updates to itself. >>>> >>> >>> You don't need separate handlers, you can pass the instance of the >>> object that is being updated in the handler message, then use one single >>> handler for the main thread. >>> >>> >>> ------------------------------------------------------------------------------------------------- >>> 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 > -- 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
