ios - Get variable value from another void -


i started programming in xcode , need help. have 2 voids; in first void create nsstring, , in second void need value of string, don't know how obtain value.

this shortend version of .h file

//.h file -(void)viewdidload {   [self actionone]; }  -(ibaction)buttonclick (id):sender {   [self actiontwo]; }      -(void)actionone     {       nsstring *varstring = @"hello";     }      -(void)actiontwo     {       nslog (@"%@", varstring);     }

my problem nslog's output 'null', hope can me

you have declared local variable in actionone. lives long method running. persistent storage, need ivar (that's term used in objective-c mean "instance variable", variable there separate copy each object instance of class). easiest way declare property, create ivar , methods access reading , writing. in .h file:

@interface myviewcontroller: uiviewcontroller  @property (nonatomic, strong) nsstring *varstring;  // ... method declarations, etc  @end

and in .m file:

-(void)actionone {     self.varstring = @"hello"; }  -(void)actiontwo {     nslog(@"%@", self.varstring); }

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