ios - Xcode Dismiss Keyboard Login Screen -

i'm working on application has functioning keyboard editing capabilities. in mainviewcontroller.m file, able hide keyboard following line of code:

- (void)touchesbegan:(nsset *)touches withevent:(uievent *)event { [self.view endediting:yes]; [super touchesbegan:touches withevent:event]; } 

after completing main functionality of application, i've created simple login screen. however, same code above not working in loginscreen.m file.

@implementation loginscreen    -(void)viewdidload {         [super viewdidload]; }    - (void)touchesbegan:(nsset *)touches withevent:(uievent *)event {     [self.view endediting:yes];     [super touchesbegan:touches withevent:event]; }      #pragma mark - view lifecycle  - (bool)shouldautorotatetointerfaceorientation:(uiinterfaceorientation)interfaceorientation {     // return yes supported orientations     return (interfaceorientation == uiinterfaceorientationportrait); }  -(ibaction)btnloginregistertapped:(uibutton*)sender {     //form fields validation     if (fldusername.text.length < 4 || fldpassword.text.length < 4) {         [uialertview error:@"enter username , password on 4 chars each."];         return;     }  //salt password nsstring* saltedpassword = [nsstring stringwithformat:@"%@%@", fldpassword.text, ksalt];  // check name/pw length  //prepare hashed storage nsstring* hashedpassword = nil; unsigned char hashedpassworddata[cc_sha1_digest_length];  //hash pass nsdata *data = [saltedpassword datausingencoding: nsutf8stringencoding]; if (cc_sha1([data bytes], [data length], hashedpassworddata)) {     hashedpassword = [[nsstring alloc] initwithbytes:hashedpassworddata length:sizeof(hashedpassworddata) encoding:nsasciistringencoding]; } else {     [uialertview error:@"password can't sent"];     return; }  //check whether it's login or register nsstring* command = (sender.tag==1)?@"register":@"login"; nsmutabledictionary* params =[nsmutabledictionary dictionarywithobjectsandkeys:                               command, @"command",                               fldusername.text, @"username",                               hashedpassword, @"password",                               nil];  //make call web api [[api sharedinstance] commandwithparams:params                            oncompletion:^(nsdictionary *json) {                                  //result returned                                nsdictionary* res = [[json objectforkey:@"result"] objectatindex:0];                                 if ([json objectforkey:@"error"]==nil && [[res objectforkey:@"iduser"] intvalue]>0) {                                    [[api sharedinstance] setuser: res];                                    [self.presentingviewcontroller dismissviewcontrolleranimated:yes completion:nil];                                     //show message user                                    [[[uialertview alloc] initwithtitle:@"logged in"                                                                message:[nsstring stringwithformat:@"welcome %@",[res objectforkey:@"username"] ]                                                               delegate:nil                                                       cancelbuttontitle:@"close"                                                       otherbuttontitles: nil] show];                                 } else {                                    //error                                    [uialertview error:[json objectforkey:@"error"]];                                }                               }];    }  @end 

if figure out fix, i'll add here i'm not sure causing problem, appreciated.

you can use tap gesture hide keyboard

 -(void)viewdidload {      [super viewdidload];      uitapgesturerecognizer *tapgesturerecognizer =[[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(tapreceived:)];     [self.view addgesturerecognizer:tapgesturerecognizer]; }    -(void)tapreceived:(uitapgesturerecognizer *)tapgesturerecognizer { [self.view endediting:yes]; [yourtextfield resignfirstresponder];  }