以编程方式更改UITextField键盘types

是否有可能以编程方式更改uitextfield的键盘types，以便这样的事情是可能的：

if(user is prompted for numeric input only) [textField setKeyboardType: @"Number Pad"]; if(user is prompted for alphanumeric input) [textField setKeyboardType: @"Default"]; 

Answer 1

有一个UITextField的keyboardType属性：

 typedef enum { UIKeyboardTypeDefault, // Default type for the current input method. UIKeyboardTypeASCIICapable, // Displays a keyboard which can enter ASCII characters, non-ASCII keyboards remain active UIKeyboardTypeNumbersAndPunctuation, // Numbers and assorted punctuation. UIKeyboardTypeURL, // A type optimized for URL entry (shows . / .com prominently). UIKeyboardTypeNumberPad, // A number pad (0-9). Suitable for PIN entry. UIKeyboardTypePhonePad, // A phone pad (1-9, *, 0, #, with letters under the numbers). UIKeyboardTypeNamePhonePad, // A type optimized for entering a person's name or phone number. UIKeyboardTypeEmailAddress, // A type optimized for multiple email address entry (shows space @ . prominently). UIKeyboardTypeDecimalPad, // A number pad including a decimal point UIKeyboardTypeTwitter, // Optimized for entering Twitter messages (shows # and @) UIKeyboardTypeWebSearch, // Optimized for URL and search term entry (shows space and .) UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, // Deprecated } UIKeyboardType; 

你的代码应该阅读

 if(user is prompted for numeric input only) [textField setKeyboardType:UIKeyboardTypeNumberPad]; if(user is prompted for alphanumeric input) [textField setKeyboardType:UIKeyboardTypeDefault]; 

Answer 2

值得注意的是，如果您想要一个当前焦点的字段立即更新键盘types，那么还有一个额外的步骤：

 // textField is set to a UIKeyboardType other than UIKeyboardTypeEmailAddress [textField setKeyboardType:UIKeyboardTypeEmailAddress]; [textField reloadInputViews]; 

如果没有调用reloadInputViews ，键盘将不会改变，直到选定的字段（第一个响应者 ）失去并重新获得焦点。

可以在这里find完整的UIKeyboardType值列表，或者：

 typedef enum : NSInteger { UIKeyboardTypeDefault, UIKeyboardTypeASCIICapable, UIKeyboardTypeNumbersAndPunctuation, UIKeyboardTypeURL, UIKeyboardTypeNumberPad, UIKeyboardTypePhonePad, UIKeyboardTypeNamePhonePad, UIKeyboardTypeEmailAddress, UIKeyboardTypeDecimalPad, UIKeyboardTypeTwitter, UIKeyboardTypeWebSearch, UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable } UIKeyboardType; 

Answer 3

是的，你可以，例如：

 [textField setKeyboardType:UIKeyboardTypeNumberPad]; 

Answer 4

  textFieldView.keyboardType = UIKeyboardType.PhonePad 

这是快速的。 另外为了使其正常工作，必须在textFieldView.delegate = self之后进行设置

Answer 5

使文本字段接受字母数字只设置此属性

 textField.keyboardType = UIKeyboardTypeNamePhonePad; 

Answer 6

 _textField .keyboardType = UIKeyboardTypeAlphabet; _textField .keyboardType = UIKeyboardTypeASCIICapable; _textField .keyboardType = UIKeyboardTypeDecimalPad; _textField .keyboardType = UIKeyboardTypeDefault; _textField .keyboardType = UIKeyboardTypeEmailAddress; _textField .keyboardType = UIKeyboardTypeNamePhonePad; _textField .keyboardType = UIKeyboardTypeNumberPad; _textField .keyboardType = UIKeyboardTypeNumbersAndPunctuation; _textField .keyboardType = UIKeyboardTypePhonePad; _textField .keyboardType = UIKeyboardTypeTwitter; _textField .keyboardType = UIKeyboardTypeURL; _textField .keyboardType = UIKeyboardTypeWebSearch; 

Answer 7

有一个属性叫做keyboardType 。 你想要做的是用UIKeyboardTypeNumberPad和UIKeyboardTypeDefaultreplace你有string@"Number Pad和@"Default UIKeyboardTypeDefault 。

你的新代码应该是这样的：

 if(user is prompted for numeric input only) [textField setKeyboardType:UIKeyboardTypeNumberPad]; else if(user is prompted for alphanumeric input) [textField setKeyboardType:UIKeyboardTypeDefault]; 

祝你好运！

Answer 8

对于想要使用UIDatePicker作为input的人：

 UIDatePicker *timePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 250, 0, 0)]; [timePicker addTarget:self action:@selector(pickerChanged:) forControlEvents:UIControlEventValueChanged]; [_textField setInputView:timePicker]; // pickerChanged: - (void)pickerChanged:(id)sender { NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"d/M/Y"]; _textField.text = [formatter stringFromDate:[sender date]]; } 

Answer 9

这是Swift 3的UIKeyboardTypes ：

 public enum UIKeyboardType : Int { case `default` // Default type for the current input method. case asciiCapable // Displays a keyboard which can enter ASCII characters case numbersAndPunctuation // Numbers and assorted punctuation. case URL // A type optimized for URL entry (shows . / .com prominently). case numberPad // A number pad with locale-appropriate digits (0-9, ۰-۹, ०-९, etc.). Suitable for PIN entry. case phonePad // A phone pad (1-9, *, 0, #, with letters under the numbers). case namePhonePad // A type optimized for entering a person's name or phone number. case emailAddress // A type optimized for multiple email address entry (shows space @ . prominently). @available(iOS 4.1, *) case decimalPad // A number pad with a decimal point. @available(iOS 5.0, *) case twitter // A type optimized for twitter text entry (easy access to @ #) @available(iOS 7.0, *) case webSearch // A default keyboard type with URL-oriented addition (shows space . prominently). @available(iOS 10.0, *) case asciiCapableNumberPad // A number pad (0-9) that will always be ASCII digits. public static var alphabet: UIKeyboardType { get } // Deprecated } 

这是使用列表中键盘types的一个示例：

 textField.keyboardType = .numberPad