iphone - Accessing variables from another ViewController -

firstviewcontroller.h:

#import <uikit/uikit.h>      @interface firstviewcontroller : uiviewcontroller     {     nsarray *listdata; } -(ibaction) gotoinsert: (id) sender; @property (nonatomic, retain) nsarray *listdata; @end 

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firstviewcontroller.m:

-(ibaction) upisirezultat:(id)sender {     secondviewcontroller *secondview = [[secondviewcontroller alloc] initwithnibname: nil bundle: nil];     [self presentmodalviewcontroller: secondview animated: no];     [secondview release]; }  - (void)viewdidload {nsarray *array = [[nsarray alloc] initwithobjects:@"236", @"46",                    @"147", @"8", @"56", @"69", @"114", @"2",                    @"96", @"518", @"2", @"54", @"236", nil];     self.listdata = array;     [array release];     [super viewdidload]; } 

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secondviewontroller.h

@interface secondviewcontroller : uiviewcontroller {  } -(ibaction) insert; @end 

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secondviewontroller.m

-(ibaction) insert {     /* here should code insert number in listdata firstviewcontroller */ } 

so when app loads loads firstviewcontroller.xib , shows listdata array on screen, when click button "go insert" view loaded (secondviewcontroller.xib) button "insert" should add number array , display new array on first view.

how that?

you can access parent view controller self.parentviewcontroller. therefore along these lines (meaning haven't tested -- should) should work:

firstviewcontroller *firstviewcontroller = self.parentviewcontroller; nsmutablearray *newarray = [[nsmutablearray alloc] initwitharray:firstviewcontrol.listdata]; [newarray addobject:@"42"]; [firstviewcontroller setlistdata:[nsarray arraywitharray:newarray]]; [newarray release]; 

however, since want add objects listarray, more natural use nsmutablearray instead. also, adding nsstrings array, when looks more want have nsnumber objects.