IOS add hidden buttons to the keyboard

//Add a Hide button to the keyboardUitoolbar * Backview = [[Uitoolbar alloc]initwithframe:cgrectmake (0,0, the, -)];        [Backview Setbarstyle:uibarstyledefault]; Uibarbuttonitem* Btnspace =[[Uibarbuttonitem alloc]initwithbarbuttonsystemitem:uibarbuttonsystemitemflexiblespace target:self Action:nil        ]; UIButton*BTN =[UIButton Buttonwithtype:uibuttontypesystem]; [BTN Settitle:@"Hide Keyboard"Forstate:uicontrolstatenormal]; Btn.frame= CGRectMake (2,5, -, -);    [Btn addtarget:self Action: @selector (cancelinput:) forcontrolevents:uicontroleventtouchupinside]; Uibarbuttonitem*DONEBTN =[[Uibarbuttonitem alloc]initwithcustomview:btn]; Nsarray* Buttonsarray =@[btnspace,donebtn];    [Backview Setitems:buttonsarray]; [Self.searchbar Setinputaccessoryview:backview];

IOS add hidden buttons to the keyboard