我可以在iPad上使用哪个UIKeyboardType

Question

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：

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

根据文档，这是一个有效的键盘类型，但当我编辑文本字段时，会出现正常的ASCII键盘。但是，当我将其更改为：

textField.keyboardType = UIKeyboardTypePhonePad;

键盘如下所示：

​

理想情况下，我想要一个只有数字和小数点的键盘，但这在iPad上是不可能的吗？有没有人知道哪些键盘可以在iPhone上使用，哪些可以在iPad上使用？苹果在这一点上并不清楚。我也看到了这个question，它很相似，但没有一个答案真正解决了我的问题。

Answer 1

这些是可以在两个iOS设备上使用的UIKeyboardTypes。来自the docs

• 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`.

​

这里有一些screenshots of the different types of keyboards。

Answer 2

在收到警告后，我使用模拟器测试了哪些键盘类型可用于iPad/iPhone

使用2592645918_Wildcat-Alphabetic-Keyboard_Capital-Letters“时，

”找不到支持键盘类型8的键盘

在UIKeyboardTypeDecimalPad的iPad上。希望这对下一个在这里跌跌撞撞的人有用。

iPad：

• UIKeyboardTypeASCIICapable
• UIKeyboardTypeNumbersAndPunctuation
• UIKeyboardTypeURL
• UIKeyboardTypeNumberPad
• UIKeyboardTypeNamePhonePad
• UIKeyboardTypeEmailAddress
• UIKeyboardTypeTwitter

所以，除了UIKeyboardTypeDecimalPad之外的所有人。在iOS 5.1或6.1中，使用UIKeyboardTypeDecimalPad只会给你一记耳光。

iPhone：

• UIKeyboardTypeASCIICapable
• UIKeyboardTypeNumbersAndPunctuation
• UIKeyboardTypeURL
• UIKeyboardTypeNumberPad
• UIKeyboardTypeNamePhonePad
• UIKeyboardTypeEmailAddress
• UIKeyboardTypeDecimalPad
• UIKeyboardTypeTwitter

也就是说，它们全部