objective c - Limit to adding objects to a performSelector request (iOS4) -

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if use code, app works:

if ([self.navigationcontroller respondstoselector:@selector(showupdaterecordmodalwithfrontword:andbackword:)]) {         nslog(@"seems respond");         [self.navigationcontroller performselector:@selector(showupdaterecordmodalwithfrontword:andbackword:)                  withobject:[currentcard frontword] withobject:[currentcard backword]];       }

if add third parameter (below), sigabrt.

if ([self.navigationcontroller respondstoselector:@selector(showupdaterecordmodalwithfrontword:andbackword:andnotes:)]) {         nslog(@"seems respond");         [self.navigationcontroller performselector:@selector(showupdaterecordmodalwithfrontword:andbackword:andnotes:)                                          withobject:[currentcard frontword] withobject:[currentcard backword] withobject:[currentcard notes]];     }

the method here:

- (id)showupdaterecordmodalwithfrontword:(nsstring *)arg_name1 andbackword:(nsstring *)arg_name2 andnotes:(nsstring *)arg_name3 {     nslog(@"%s", __function__);      appproductmodalcontroller *modal = [[appproductmodalcontroller alloc] initwithnibname:nil bundle:nil];     [modal setnewrecord: no];     [modal setdelegate: self.topviewcontroller];     [modal.navbar.topitem settitle: @"update card"];     [modal.frontwordfield settext: arg_name1];     [modal.backwordfield settext: arg_name2];     [modal.notesfield settext: arg_name3];     [self presentmodalviewcontroller:modal animated:yes];     [modal release];     return nil; }

am running limit of parameters, or doing wrong?

i appreciate help..

nsobject defines performselector:, performselector:withobject: , performselector:withobject:withobject:. there's no magic behind scenes here you're "adding objects" — there isn't such method performselector:withobject:withobject:withobject:. best solution send message directly rather going through performselector:. selector doesn't vary, shouldn't problem.


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