resignFirstResponder和 - （BOOL）disablesAutomaticKeyboardDismissal {return NO;}没有隐藏键盘，为什么它不起作用？

Question

当用户按下＆＃34;返回＆＃34;我希望键盘消失。按钮，但我已尝试resignFirstResponder，endEditing:YES和 - (BOOL)disablesAutomaticKeyboardDismissal {return NO;}，键盘仍然没有消失。我该怎么办？

以下是相关代码:(其他一切都是空的（viewDidLoad为空等）

@implementation ViewController {
    __weak IBOutlet UITextField *textfield;
}

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textfield resignFirstResponder];
    //[self.view endEditing:YES]; (I uncommented this out and tested it)
    return YES;
}
- (BOOL)disablesAutomaticKeyboardDismissal {
    return NO;
}

Answer 1

plz确认您的UITextField委托自故事板或设置

textfield.delegate = self;

in - （void）viewDidLoad

并使用方法

-(BOOL) textFieldShouldReturn:(UITextField *)textField{

    [textField resignFirstResponder];
    return YES;
}