摘要:
修改视图控制器的view属性,将它的底层类由UIView更改为UIControl添加一个Action,Action是Touch Down- (IBAction)backgroudTap:(id)sender { [myTextFieldresignFirstResponder];}记住你的UITextField的Outlet一定要是weak的属性(一般的Outlet都是weak的),不然会出错-[UITextInputTraits resignFirstResponder]: unrecognized selector sent to instance 阅读全文