ios - How to send and get data between two view controller? -

ios - How to send and get data between two view controller? -

i have 2 view controller in storyboard. vc1 has 3 buttons , vc2 has image view.

when click button in vc1, vc2 show image of a. when click button b in vc1, vc2 show image of b.

how vc2 can know button clicked in vc1?

this simple!!!

1) in vc2 create nsstring property in .h file , synthesize in .m file "nsstringobjofvc2" 2) import vc2 in vc1 .h file #import "vc2" , create object this

vc2 *vc2obj;

3) in viewdidload method

vc2obj = [[vc2 alloc] init];

4) on each button click add together this

vc2obj.nsstringobjofvc2 = @"differentimagenameforall3buttons.png";

last utilize image in vc2

simply utilize nsstringobjofvc2 in uiimage filename

ios xcode