iphone - Strange resetting of NSMutableDictionary -



iphone - Strange resetting of NSMutableDictionary -

i have functions:

- (nsmutabledictionary *) getuserdatadictionary { [userdatadicionary removeallobjects]; userdatadicionary = [[nsmutabledictionary alloc] initwithcontentsoffile:[self getuserdatadictionarypath]]; homecoming userdatadicionary; } - (int) getindexoflastvehicle { myappdelegate *app = (myappdelegate*)[[uiapplication sharedapplication] delegate]; nsmutabledictionary *tmpuserdata = [app getuserdatadictionary]; int lasthighestindex = -1; for(id item in [tmpuserdata allkeys]){ nsstring *keyinarray = (nsstring *)item; if ([keyinarray rangeofstring:@"vehicle-"].location != nsnotfound) { //f.e. "vehicle", "1", "type"...or "vehicle", "1", "spz"...or "vehicle", "2", "type" etc nsarray * separatedcomponents = [keyinarray componentsseparatedbystring:@"-"]; int indexofvehicle = [(nsstring *)[separatedcomponents objectatindex:1] intvalue]; if(indexofvehicle > lasthighestindex){ lasthighestindex = indexofvehicle; } } } homecoming lasthighestindex; }

the problem is: after code:

myappdelegate *app = (myappdelegate *)[[uiapplication sharedapplication] delegate]; nsmutabledictionary *tmpuserdata = [app getuserdatadictionary]; int lastvehicleindex = [self getindexoflastvehicle];

the tmpuserdata empty.

but when changed order this:

int lastvehicleindex = [self getindexoflastvehicle]; myappdelegate *app = (myappdelegate*)[[uiapplication sharedapplication] delegate]; nsmutabledictionary *tmpuserdata = [app getuserdatadictionary];

the tmpuserdata correctly filled.

can explain behavior? thanks

one of problems lies in method getuserdatadictionary. calling removeallobjects not releases userdatadictionary. have release instead of removingallobject. actual release release it's objects you.

iphone objective-c nsmutabledictionary

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