Thanks for the comprehensive response - that is very helpful! What I dont understand is that if I am just telling another thread to go do processing, why would THAT thread not block the main thread then?
On Mar 12, 10:52 pm, Streets Of Boston <[email protected]> wrote: > I'm assuming that gameThread is something that has its ownthreadand > runs the game. And the mainthread(on which onOptionsItemSelected is > running) is seperate and handles the user-interface. > > If so, the it may be that createShapes() is pretty expensive and takes > a while. This'll hang themenu-option item until it's done and ready. > > You could startup the gamethreadin yet anotherthread. > This otherthreadcould be your gameThread. But i don't know its > interface and whether it has something that does except jobs/tasks, > e.g. gameThread.submitTask(new Runnable() { public void run() > { dosomething } }); Let's assume that it doesn't and this submitTask > on gameThread does not exist. > > Then you have to create anotherthreadto do this. I would use the > java.util.concurrent package for this: > > in your activity you declare an instance variable: > private ExecutorService mGameStarter; > > in your onCreate of your activity: > mGameStarter = Executors.newSingleThreadExecutor(); > > in your onDestroy: > mGameStarter.shutdownNow(); > > And in your onOptionsItemSelected, inside your case START_GAME > mGameStarter.submit(new Runnable() { > public void run() { > gameThread.doStart(); > } > }); > > Every time you call submit() the newthread(hed by mGameStarter) will > wake up and execute the Runnable you specified when calling submit(). > When the Runnable ends, thisthreadwill sleep until you submit yet > another task. > > On Mar 12, 9:48 pm, Ikon <[email protected]> wrote: > > > Streets, > > > Here is the snippet where I do the menuHandling: > > > @Override > > public boolean onOptionsItemSelected(MenuItem item) { > > > switch( item.getItemId()){ > > case START_GAME: > > gameThread.doStart(); > > return true; > > case STOP_GAME: > > gameThread.setState(gameThread.STATE_LOSE); > > return true; > > case PAUSE_GAME: > > gameThread.pause(); > > return true; > > case RESUME_GAME: > > gameThread.unpause(); > > return true; > > } > > > return super.onOptionsItemSelected(item); > > } > > > Here is my doStart method: > > > public void doStart() { > > synchronized (mSurfaceHolder) { > > > createShapes(mContext); > > shape[0].visible = true; > > score = 0; > > > mLastTime = System.currentTimeMillis() + 100; > > setState(STATE_RUNNING); > > } > > } > > > Thanks, > > Ayan > > > On Mar 12, 10:28 am, Streets Of Boston <[email protected]> > > wrote: > > > > Could you provide a code-snippet showing how you coded themenu- > > > handling and the starting of yourthread? > > > > On Mar 12, 10:00 am, Ikon <[email protected]> wrote: > > > > > Hi, > > > > > I am developing a game based on the SurfaceView/LunarLander example in > > > > the sample code. > > > > I have one activity, with onemenuoption that is "new game". > > > > > My activity listens for themenuselection, and once new game is > > > > selected, doStart of the Gamethreadis called. The game starts up > > > > after 3-4 seconds, but themenuoption sticks around on the screen > > > > until the game has started. I think the mainthreadis waiting on the > > > > doStart to do its thing, but since it's creating a newthread, how do > > > > I get it to just start thethreadand continue its business of hiding > > > > themenuoption right away, instead of after 3 seconds? > > > > > Thanks, > > > > Ayan- Hide quoted text - > > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
