ios - Close UIView when UIButton is tapped -

in app have horizontal image gallery wherein when tap image, uiview called displaying enlarged images. uiview contains, scrollview, imageviews (dynamically created) , uibutton (close button) programmatically created. however, when tap close button uiview not dismissed. in viewdidload set gesturerecognizer.

[self.view addgesturerecognizer:[[uitapgesturerecognizer alloc] initwithtarget:self action:@selector(singletapaction:)]]; 

here's singletapaction method:

- (void)singletapaction:(uigesturerecognizer *)singletap_ {     mtgallerypopup* galleryimage = [[[nsbundle mainbundle] loadnibnamed:@"mtgallerypopup" owner:self options:nil] lastobject];     if(galleryimage.hidden)     {         nslog(@"hidden");         [galleryimage dismisswithanimation:yes];     }     else     {         nslog(@"not hidden");         [self showgallerydialog];     } } 

here's showgallerydialog method:

- (void)showgallerydialog {     mtgallerypopup * galleryview = [[[nsbundle mainbundle] loadnibnamed:@"mtgallerypopup" owner:self options:nil] lastobject];      [galleryview setreferencevc:self];     [galleryview initwithtitle:@"image gallery"];     [galleryview setalpha:0.0f];     [self.view addsubview:galleryview];     [uiview beginanimations:nil context:nil];     [galleryview setalpha:1.0];     [uiview commitanimations]; } 

here's how creating uiview:

- (id)initwithtitle:(nsstring *)atitle {     cgrect rect = [[uiscreen mainscreen] bounds]; // portrait bounds     if (self = [super initwithframe:rect])     {         cgrect screenrect = [[uiscreen mainscreen] bounds];         [self setbackgroundcolor:[uicolor colorwithred:0.0f green:0.0f blue:0.0f alpha:0.8f]];          self.scrollview = [[uiscrollview alloc] initwithframe:cgrectmake(0.0f, title_height, screenrect.size.width, 350)];         [self.scrollview setuserinteractionenabled:yes];         closebutton = [uibutton buttonwithtype:uibuttontyperoundedrect];        [closebutton addtarget:self                     action:@selector(dismisswithanimation:)           forcontrolevents:uicontroleventtouchupinside];          [closebutton settitle:@"x" forstate:uicontrolstatenormal];         [closebutton.layer setborderwidth:2];         [closebutton.layer setbordercolor:[uicolor whitecolor].cgcolor];          closebutton.layer.cornerradius=10;         closebutton.layer.maskstobounds = yes;         [closebutton settitlecolor:[uicolor whitecolor] forstate:uicontrolstatenormal];         closebutton.titlelabel.font=[uifont systemfontofsize:16];         closebutton.frame=cgrectmake(self.frame.size.width-80, 8, 20, 20);         [self addsubview:closebutton];          strurl = [nsstring stringwithformat:@"%@%@?temp_url_sig=%@&temp_url_expires=%lld", urlstorage, container_path, hmacstr, [@(floor([oneminlater timeintervalsince1970])) longlongvalue]];          [mutableurlstorage addobject:strurl];         [imagesarray addobject:[[uiimage alloc] initwithdata:[nsdata datawithcontentsofurl:[nsurl urlwithstring:strurl]]]];     }      cgsize pagesize = cgsizemake(item_width, self.scrollview.frame.size.height);     _pgctr = [[uipagecontrol alloc] initwithframe:cgrectmake(0, screenrect.size.height-30, 320, 36)];     _pgctr.backgroundcolor=[uicolor graycolor];     int numberofpage=ceil((float)[imagesarray count]/2.5);     _pgctr.numberofpages= numberofpage;     self.scrollview.contentsize = cgsizemake(450*numberofpage, pagesize.height);      int imgcurrentx = 10;     (uiimageview* image in imagesarray)     {         @autoreleasepool         {             imageview = [[uiimageview alloc] initwithframe:cgrectmake(imgcurrentx, 45, 200, self.scrollview.frame.size.height - 10)];                 imageview.image = (uiimage*)image;                 [imageview setuserinteractionenabled:yes];                 [self.scrollview addsubview:imageview];                 imgcurrentx = imgcurrentx + 220;             }         }          [self addsubview:self.scrollview];     }      return self; } 

when i'm on debug, happens goes singletap_ method , recreates again uiview (now 2 uiviews overlapping). doing wrong here?

any appreciated. thanks.

you created 2 objects of "mtgallerypopup" class. better way declare in ".h" file , initilise in viewdidload. per tap hide , show. hope solve problem