ios - Call SEL(selector) of a class in iPhone? -

-


ios - Call SEL(selector) of a class in iPhone? -

i have class in calling method(with sel parameter) of class follows

// class 1 +(ccscene *) scene { // 'scene' autorelease object. ccscene *scene = [ccscene node]; // 'layer' autorelease object. helloworldlayer *layer = [helloworldlayer node]; // add together layer kid scene [scene addchild: layer]; // returns cclayer object id myclasslayer = [myclass objwithbackgroundsprite:objbackground withrect:cgrectmake(160,100, 300,120) atpoistion:pos_top]; sel callonclick; [myclasslayer addbuttonwithimage:buttonbackground selector:callonclick withdisabledimage:disabledbackground]; [scene addchild: myclasslayer]; // homecoming scene homecoming scene; } // class 2 -(void)addbuttontohudwithimage:(nsstring *)imagename selector:(sel)selector withdisabledimage:(nsstring *)disbdimagename { ccmenuitem *menuitem1 = [ccmenuitemimage itemfromnormalimage:imagename selectedimage:imagename disabledimage:disbdimagename target:self selector:@selector(selector)]; ccmenu *menu = [ccmenu menuwithitems:menuitem1,nil]; [menu setposition:ccp(160,100)]; [self addchild:menu]; } -(void)selector { // not creating object .. other way if possible }

but declare selector method(callonclick) in helloworld only(myclass beingness generic class).

how can phone call selector in helloworld only??

if need no instance, can utilize class method , target/object [sometype class] or [self class]:

+ (void)selector // << + not - { // not creating object .. other way if possible }

ios iphone selector

Comments

Post a Comment

Popular posts from this blog

delphi - blogger via idHTTP : error 400 bad request -

-
delphi - blogger via idHTTP : error 400 bad request - i'm trying post blogger using idhttp component, however, i'm getting "http/1.0 400 bad request" error. procedure tform1.button1click(sender: tobject); var request,response,req : tstringlist; auth,blogid : string; begin blogid := '00000000000000000000000'; request := tstringlist.create; response := tstringlist.create; req := tstringlist.create; idhttp1.request.connection := 'keep-alive'; idhttp1.request.contenttype := 'application/x-www-form-urlencoded'; idssliohandlersocket1.ssloptions.method := sslvsslv23; request.clear(); request.values['accounttype'] := 'google'; request.values['email'] := 'xxx@gmail.com'; request.values['passwd'] := 'yyy'; request.values['service'] := 'blogger'; response.text :=idhttp1.post('https://www.google.com/accounts/clientlogin',request); auth := resp...
Read more

c++ - compiler errors when initializing EXPECT_CALL with function which has program_options::variables_map as parameter -

-
c++ - compiler errors when initializing EXPECT_CALL with function which has program_options::variables_map as parameter - i'm having problem expect_call method, when trying : boost::program_options::variables_map vm; mymock mock; expect_call(mock, mymethod(vm)).willonce(return(l"")); mymethod looks : std::wstring mymethod(const boost::program_options::variables_map &vm) when compiling got errors : error 17 error c2676: binary '==' : 'const boost::program_options::variable_value' not define operator or conversion type acceptable predefined operator c:\program files (x86)\microsoft visual studio 9.0\vc\include\utility error 10 error c2784: 'bool std::operator ==(const _elem *,const std::basic_string<_elem,_traits,_alloc> &)' : not deduce template argument 'const _elem *' 'const boost::program_options::variable_value' c:\program files (x86)\microsoft visual studio 9.0\vc\include\u...
Read more

How do I check if an insert was successful with MySQLdb in Python? -

-
How do I check if an insert was successful with MySQLdb in Python? - i have code: cursor = conn.cursor() cursor.execute(("insert new_files (videos_id, filename, " "is_processing) values (%s,%s,1)"), (id, filename)) logging.warn("%d", cursor.rowcount) if (cursor.rowcount == 1): logging.info("inserted values %d, %s", id, filename) else: logging.warn("failed insert values %d, %s", id, filename) cursor.close() fun is, cursor.rowcount always one, though updated database create videos_id unique key. is, insert fails because in tests same videos_id going appear (and when check database, nil inserted). whatever reason, rowcount 1 - logging.warn have spits out rowcount of 1. so, question: can utilize rowcount work out if insert went fine? if so, (presumably) doing wrong? otherwise, how check if insert went fine? your code not commit after modifications (your modifications rolled back). should...
Read more