Display keyboard without animation

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感情败类
感情败类 2020-11-29 03:12

Looked intoUIKeyboardAnimationDurationUserInfoKey but I just can\'t find anywhere how to set it to a custom value.

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7条回答
  • 2020-11-29 03:26

    UIKeyboardAnimationDurationUserInfoKey is a const string identifier for the dictionary key that holds the animation duration, so there is no way to change it easily.

    One way to make the keyboard appear without animation is to observe the keyboard notifications and disable animation when it's about to appear and then reenable them. This, of course, disables any other animation as well.

    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(willShowKeyboard:) 
                                                 name:UIKeyboardWillShowNotification 
                                               object:nil];
    
    [[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(didShowKeyboard:) 
                                                 name:UIKeyboardDidShowNotification 
                                               object:nil];
    
    - (void)willShowKeyboard:(NSNotification *)notification {
        [UIView setAnimationsEnabled:NO];
    }
    
    - (void)didShowKeyboard:(NSNotification *)notification {
        [UIView setAnimationsEnabled:YES];
    }
    

    and then then the same for UIKeyboardWillHideNotification/UIKeyboardDidHideNotification notifications.

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  • 2020-11-29 03:33

    I had to disable Animations in textViewShouldBeginEditing, textFieldDidBeginEditing did not work for me (iOS 8)

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  • 2020-11-29 03:35

    The answer of @Vadoff works perfect. Here for Swift 3:

        override func viewDidLoad() {
            super.viewDidLoad()
    
            //...
    
            // Add observer to notificationCenter so that the method didShowKeyboard(_:) is called when the keyboard did show.
            NotificationCenter.default.addObserver(self, selector: #selector(type(of: self).didShowKeyboard(_:)), name: NSNotification.Name.UIKeyboardDidShow, object: nil)
    
            // Make textField the first responder.
            textField.becomeFirstResponder() // <- Change textField to the name of your textField.
        }
    
        func textFieldDidBeginEditing(_ textField: UITextField) {
            // Disable animations.
            UIView.setAnimationsEnabled(false)
        }
        func didShowKeyboard(_ notification: Notification) {
            // Enable animations.
            UIView.setAnimationsEnabled(true)
        }
    
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  • 2020-11-29 03:36

    iOS8-compatible:

    Add the appropriate delegate method:

    - (void)textFieldDidBeginEditing:(UITextField *)textField {
        [UIView setAnimationsEnabled:NO];
    }
    

    or

    - (void)textViewDidBeginEditing:(UITextView *)textView {
        [UIView setAnimationsEnabled:NO];
    }
    

    Add the keyboard notification:

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didShowKeyboard:) name:UIKeyboardDidShowNotification object:nil];
    

    And method:

    - (void)didShowKeyboard:(NSNotification *)notification {
        [UIView setAnimationsEnabled:YES];
    }
    
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  • 2020-11-29 03:37

    Try

    [UIView performWithoutAnimation:^{
        [textField becomeFirstResponder];
    }];
    
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  • 2020-11-29 03:46

    It is pretty simple guys. Do not use UIView:SetAnimationEnabled as that will be potentially troublesome. This is how i remove animation when keyboard show.

    - (void)viewWillAppear:(BOOL)animated {
        [super viewWillAppear:animated];
    
        [txtFirstName becomeFirstResponder];
    }
    
    - (void)viewWillDisappear:(BOOL)animated {
        [super viewWillDisappear:animated];
    
        [txtFirstName resignFirstResponder];
    }
    
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