UIkeyboard类型

Question

我想只使用字母键盘，怎么限制它？我使用了以下语句，但它没有隐藏将键盘转换为数字键盘的按钮

tempTextField.keyboardType = UIKeyboardTypeAlphabet;    

Answer 1

恐怕你不能限制键盘只输入字母字符。UITextInputTraits协议参考中列出了可用的keyboardTypes，头文件中列出了更详细的信息：

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).

    UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, // Deprecated

} UIKeyboardType;

我觉得SDK中缺少您想要的东西。

除了提交错误报告并等待新的键盘类型在SDK中可用之外，您还有什么解决方案？检查文本字段中的输入。这可以通过分配UITextField的委托属性并实现UITextFieldDelegate方法textField:shouldChangeCharactersInRange:replacementString:来实现，并且只有在替换字符串不包含数字时才返回YES。

HTH

Answer 2

更新后的键盘类型

   typedef NS_ENUM(NSInteger, UIKeyboardType) {
        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).
    #if __IPHONE_4_1 <= __IPHONE_OS_VERSION_MAX_ALLOWED
        UIKeyboardTypeDecimalPad,             // A number pad with a decimal point.
    #endif
    #if __IPHONE_5_0 <= __IPHONE_OS_VERSION_MAX_ALLOWED
        UIKeyboardTypeTwitter,                // A type optimized for twitter text entry (easy access to @ #)
    #endif

        UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable, // Deprecated

    };