ios - How to add UITapGestureRecognizer inside a UIView with the target set ```self``` -

i created customized uiview , added uitapgesturerecognizer inside this:

@interface customizedview : uiview  @property(nonatomic,strong) uilabel* label;  @end  @implementation customizedview -(void) targetactionforthisview:(id)sender{     nslog(@"clicked!"); } -(void) commoninit{     _label = [[uilabel alloc] initwithframe:cgrectmake(0,0,200,100)];     _label.text = @"test string 1234";     uitapgesturerecognizer* g = [[uitapgesturerecognizer alloc]         initwithtarget:self action:@selector(targetactionforthisview:)];     g.enabled = yes;     [self setexclusivetouch:yes];     [self setuserinteractionenabled:yes];     [self setmultipletouchenabled:yes];     [_label addgesturerecognizer:g];     [self addsubview:_label]; } -(instancetype)init{     self = [super init];     [self commoninit];     return self; } -(instancetype)initwithframe:(cgrect)frame{     self = [super initwithframe:frame];     [self commoninit];     return self; } @end 

then add view controller:

-(void)viewdidload {     [super viewdidload];     customizedview* aview = [[customizedview alloc] initwithframe:cgrectmake(0,0,300,300)];     [self.view addsubview:aview]; } 

but gesture won't work. know target set view's controller. why doesn't work? , how can fix it?

change code this

-(void)actionviewtap:(id)sender{     nslog(@"clicked!"); } -(void) commoninit{     _label = [[uilabel alloc] initwithframe:cgrectmake(0,0,200,100)];     _label.text = @"test string 1234";     _label.userinteractionenabled = true;//enable userinteractionenabled     uitapgesturerecognizer* g = [[uitapgesturerecognizer alloc]                              initwithtarget:self action:@selector(actionviewtap:)];//here should actionviewtap:     g.enabled = yes;      [self setexclusivetouch:yes];     [self setuserinteractionenabled:yes];     [self setmultipletouchenabled:yes];     [_label addgesturerecognizer:g];     [self addsubview:_label]; } -(instancetype)init{     self = [super init];     [self commoninit];     return self; } -(instancetype)initwithframe:(cgrect)frame{     self = [super initwithframe:frame];     [self commoninit];     return self;  }