Alertview click OK and then execute the following code

After the show method of alertview is executed, the subsequent code will continue to run, instead of waiting for the user to press the key to finish. In this way, if the pop-up code is written in a bool function, the solution is as follows:

1-(bool) beforebackbuttonclickevent {2 uialertview * Alert = [[uialertview alloc] initwithtitle: @ "prompt" message: @ "Discard Process? "Delegate: Self cancelbuttontitle: @" no "otherbuttontitles: @" yes ", nil]; 3 [alert show]; 4 cfrunlooprun (); 5 6 return back; 7} 8 9-(void) alertview :( uialertview *) alertview clickedbuttonatindex :( nsinteger) buttonindex {10 // No 11 if (buttonindex = 0) {12 back = no; 13} 14 // 15 else {16 back = yes; 17} 18 cfrunloopstop (cfrunloopgetmain (); 19}

 

Alertview click OK and then execute the following code