关于ios：我可以在iPad上使用哪个UIKeyboardType

Which UIKeyboardType can I use on the iPad

我的iPad应用程序中有一个textField对象。我想给用户一个方便的键盘来输入数字。在我的代码中，我添加了：

1 2	UITextField *textField = [[UITextField alloc] initWithFrame:frame]; textField.keyboardType = UIKeyboardTypeDecimalPad;

根据文档，这是有效的键盘类型，但是当我编辑文本字段时，会出现普通的ASCII键盘。但是，当我将其更改为：

1	textField.keyboardType = UIKeyboardTypePhonePad;

键盘如下所示：
phonepad keyboard

理想情况下，我想要一个只包含数字和小数点的键盘，但是在iPad上这不可能吗？有谁明确列出了iPhone和iPad上可以使用的键盘？苹果在这一点上还不清楚。我也看到了类似的问题，但没有一个答案能真正解决我的观点。

这些是可以在两个iOS设备上使用的UIKeyboardTypes。从文档：

UIKeyboardTypeDefault

Use the default keyboard for the current input method.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeASCIICapable

Use a keyboard that displays standard ASCII characters.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeNumbersAndPunctuation

Use the numbers and punctuation keyboard.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeURL

Use a keyboard optimized for URL entry. This type features".","/", and".com" prominently.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeNumberPad

Use a numeric keypad designed for PIN entry. This type features the numbers 0 through 9 prominently. This keyboard type does not
support auto-capitalization.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypePhonePad

Use a keypad designed for entering telephone numbers. This type features the numbers 0 through 9 and the"*" and"#" characters
prominently. This keyboard type does not support auto-capitalization.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeNamePhonePad

Use a keypad designed for entering a person’s name or phone number. This keyboard type does not support auto-capitalization.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeEmailAddress

Use a keyboard optimized for specifying email addresses. This type features the"@","." and space characters prominently.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeDecimalPad

Use a keyboard with numbers and a decimal point.

Available in iOS 4.1 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeTwitter

Use a keyboard optimized for twitter text entry, with easy access to the @ and # characters.

Available in iOS 5.0 and later.

Declared in UITextInputTraits.h.

UIKeyboardTypeAlphabet

Deprecated.

Use UIKeyboardTypeASCIICapable instead.

Available in iOS 2.0 and later.

Declared in UITextInputTraits.h.

这是不同类型的键盘的一些屏幕截图。