UIKeyboardType类型

UIKeyboardType是一个枚举；如下

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;

下面是各个类型的样式

• UIKeyboardTypeAlphabet（Alphabet字母），UIKeyboardTypeASCIICapable，UIKeyboardTypeDefault: （这三个默认都显示字母表--下面第一幅图，另外可以切换倒--下面第二幅图）

• UIKeyboardTypeDecimalPad： (Decimal十进制)

• UIKeyboardTypeEmailAddress：

• UIKeyboardTypeNamePhonePad：（这个类型默认显示第一幅图片，如果点击123按钮则会显示第二副键盘）

• UIKeyboardTypeNumberPad：（下图显示）

• UIKeyboardTypeNumbersAndPunctuation：（默认显示下面第一幅图，切换显示第二幅）

• UIKeyboardTypeTwitter：（默认显示下面第一幅图，切换显示第二幅）