Moves the view to the left in iOS and does not move to the right

Moves the view to the left in iOS and does not move on the right by Wusheying

-(void) Signupandloginanimation: (BOOL) showsignup {    CGFloat loginwidthchange = (showsignup)? -120:120;    [UIView animatewithduration:0.3f                     animations:^{                         cgrect newframe = self.logInView2.frame;                         Newframe.origin.x-=  loginwidthchange;                         NewFrame.size.width + = Loginwidthchange;                                                  CGFloat Newsizex = self.logInView2.frame.size.width + loginwidthchange;                         CGFloat ofsetx = Loginwidthchange;                                                  [Self.loginview2 Setframe:cgrectmake (Self.loginview2.frame.origin.x-ofsetx, SELF.LOGINVIEW2.FRAME.ORIGIN.Y, Newsizex, Self.logInView2.frame.size.height)];                     }];}

Find the writing complex:

[UIView animatewithduration:0.3f                     animations:^{                         cgfloat changewidth = (showsignup)? -120:120;                         [Self.loginview2 Setframe:cgrectmake (Self.loginview2.left-changewidth, Self.logInView2.top, Self.logInView2.width + Changewidth, self.logInView2.height)];                     }];

Moves the view to the left in iOS and does not move to the right