xcode - Swift - How to make one action if 2 buttons are pressed? -


in main.storyboard, have gun button , shield button. both buttons clicked @ same time (not same time know mean).

how make 1 action after both buttons clicked? in case if gun , shield clicked want make label defended. pretty asking how in view controller...

something should trick. connect both buttons each ibaction, , make sure onbuttondown: trigger control event .touchdowninside, , onbuttonup: trigger both .touchupinside , .touchdragexit.

class viewcontroller : uiviewcontroller {      var buttonspressed: [uibutton] = []      // triggered .touchdowninside     @ibaction func onbuttondown( sender: uibutton ) {         self.buttonspressed.append( sender )          if self.buttonspressed.count == 2 {             // both buttons pressed         }     }      // triggered .touchupinside , .touchdragexit     @ibaction func onbuttonup( sender: uibutton ) {         in 0..<self.buttonspressed.count {             if self.buttonspressed[i] == sender {                 self.buttonspressed.removeatindex( )                 break             }         }     } }

update: add break statement in loop prevent crashing


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