ios - How to get rid of title "Back" for nav bar back button? -

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how rid of title "back" nav bar button?

- (bool)application:(uiapplication *)application didfinishlaunchingwithoptions:(nsdictionary *)launchoptions {     // nav button      uiimage *backbuttonicon = [uiimage imagenamed:@"back_black"];      [uinavigationbar appearance].backindicatorimage = backbuttonicon;     [uinavigationbar appearance].backindicatortransitionmaskimage = backbuttonicon;      return yes; }

image here 

uiview *backbtnview = [[uiview alloc] initwithframe:cgrectmake(0,0,14,36)]; uibutton *backbtn = [uibutton buttonwithtype:uibuttontypecustom]; [backbtn setframe:cgrectmake(0,0,14,36)]; [backbtn setimage:[uiimage imagenamed:@"yourimagename"] forstate:uicontrolstatenormal]; [backbtn setenabled:yes]; [backbtnview addsubview:backbtn]; uibarbuttonitem* barbackbtn = [[uibarbuttonitem alloc] initwithcustomview:backbtnview]; self.navigationitem.leftbarbuttonitem = barbackbtn; [backbtn addtarget:self.navigationcontroller action:@selector(popviewcontrolleranimated:) forcontrolevents:uicontroleventtouchupinside]; backbtn.adjustsimagewhenhighlighted = no;

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