ios - UIButton setTittle not working in a specific case -

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i have 2 views in app , plist file store values.

in first view i've created button called frequenciesbutton opens second view , button restore default values.

in second view there pickerview , "done" button.

on .m of first view:

- (void)viewdidload {     [super viewdidload];     //     self.gamesettings = [[nsmutabledictionary alloc] initwithcontentsoffile:gamesettingsfilepath];  }  -(void)viewwillappear:(bool)animated {      [self refreshview]; }  - (void)refreshview {      [self.frequenciesbutton settitle:[nsstring stringwithformat:@"%@ hz , %@ hz", [self.gamesettings objectforkey:@"freq-freq1"], [self.gamesettings objectforkey:@"freq-freq2"]] forstate:uicontrolstatenormal];     ...  }  - (ibaction)setdefaultvalues:(uibutton *)sender {      [self.gamesettings setvalue:@880 forkey:@"freq-freq1"];     [self.gamesettings setvalue:@1122 forkey:@"freq-freq2"];     ...     [self.gamesettings writetofile:gamesettingsfilepath atomically:yes];     [self refreshview];  }

when first view loaded, button title changed default values stored in gamesettings dictionary. method settitle: works.

when click on frequenciesbutton opens second view pickerview, select 2 new values freq-freq1 , freq-freq2 , saves plist file on done button.

the problem frequenciesbutton title not changed when second view dissmissed , first view appears. refreshview method called button settitle: not work.

in case, if go 1 screen, , return view, button title updated.

and when click on defaultvaluesbutton, frequenciesbutton title changes. method settitle: works.

any ideas of must happening?

haha! love added link project.

so!! problem have separate properties in each view hold data saved plist file, self.settings. fine, don't mesh them together. requirement had this, when switching views, keep ivar or properties updated data updates :d

here how fixed problem:

- (void)viewwillappear:(bool)animated {     self.settings = [nsmutabledictionary dictionarywithcontentsoffile: filepath];     [self updateview];  }

i checked out file , updated, dictionary in testviewcontroller.h not updated

i hope problem :)


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