nsstring - math game quiz with multiple answers -


i have math quiz game , want user able touch buttons, right work if have 1 button set right answer. possible make button combination if answer 53 user can touch 5 button , 3 button.

viewcontroller.m

-(ibaction)easylevel:(id)sender {

question.hidden = no; selectlevel.hidden = yes;  buttonone.hidden = yes; buttontwo.hidden = yes; buttonthree.hidden = yes; buttonfour.hidden = yes; buttonfive.hidden = yes; buttonsix.hidden = yes; buttonseven.hidden = yes; buttoneight.hidden = yes; buttonnine.hidden = yes; buttonzero.hidden = yes;  right1.hidden = yes; right2.hidden = yes; right3.hidden = yes; right4.hidden = yes; right5.hidden = yes; right6.hidden = yes; right7.hidden = yes; right8.hidden = yes; right9.hidden = yes; right0.hidden = yes;  wrong1.hidden = yes; wrong2.hidden = yes; wrong3.hidden = yes; wrong4.hidden = yes; wrong5.hidden = yes; wrong6.hidden = yes; wrong7.hidden = yes; wrong8.hidden = yes; wrong9.hidden = yes; wrong0.hidden = yes;    int easyquestion = arc4random() % 2 ; switch (easyquestion) {      case 0:         question.text = [nsstring stringwithformat: @"what 4 x 2"];         right1.hidden = no;          wrong3.hidden = no;         wrong4.hidden = no;         wrong5.hidden = no;         wrong6.hidden = no;         wrong7.hidden = no;         wrong8.hidden = no;         wrong9.hidden = no;         wrong0.hidden = no;          buttonone.hidden =  no;         buttontwo.hidden =  no;         buttonthree.hidden =  no;         buttonfour.hidden =  no;         buttonfive.hidden =  no;         buttonsix.hidden =  no;         buttonseven.hidden =   no;         buttoneight.hidden =  no;         buttonnine.hidden =  no;         buttonzero.hidden =  no;          buttonone.text = [nsstring stringwithformat: @"1"];         buttontwo.text = [nsstring stringwithformat: @"2"];         buttonthree.text = [nsstring stringwithformat: @"3"];         buttonfour.text = [nsstring stringwithformat: @"4"];         buttonfive.text = [nsstring stringwithformat: @"5"];         buttonsix.text = [nsstring stringwithformat: @"6"];         buttonseven.text = [nsstring stringwithformat: @"7"];         buttoneight.text = [nsstring stringwithformat: @"8"];         buttonnine.text = [nsstring stringwithformat: @"9"];         buttonzero.text = [nsstring stringwithformat: @"0"];         break;          case 1: .....         default:         break; }

any appreciated, :) stephanie

the trick how program know when user done entering digits pressing buttons?

one approach might make answer editable text field (uitextfield) , setting focus , setting keyboard numbers type keyboard (via uitextinputtraits protocol uitextfield implements) user can type in numeric vales.

if don't want use ios keyboard , want own custom buttons can use own buttons , have action each button append appropriate digit answer string might display in uilabel , update press buttons. you'd want have back/delete button can erase digits , update string there also. model you'd have "ok" button or "done" button them indicate done , current string answer. button 1 takes string in answer string @ point , checks correct/incorrect.

hopefully that's enough going!


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