iOS键盘类型(UIKeyboardType)
| UIKeyboardType | 键盘类型注释 |
|---|---|
| UIKeyboardTypeDefault | 当前键盘的默认类型 |
| UIKeyboardTypeASCIICapable | ASCII码字符键盘 |
| UIKeyboardTypeNumbersAndPunctuation | 数字标点键盘：数字（0-9）+标点（切换按钮） |
| UIKeyboardTypeURL | URL键盘：突出显示 . / .com |
| UIKeyboardTypeNumberPad | 数字键盘：0-9 |
| UIKeyboardTypePhonePad | 数字键盘：0-9 + * + # |
| UIKeyboardTypeNamePhonePad | 联系人键盘：方便新建联系人，数字（纯数字键盘）与字母（或中文输入法）切换 |
| UIKeyboardTypeEmailAddress | EMail键盘：突出显示 @ . |
| UIKeyboardTypeDecimalPad | 数字键盘：0-9 + . |
| UIKeyboardTypeTwitter | Twitter键盘：突出显示 @ # |
| UIKeyboardTypeWebSearch | WebSearch键盘：突出显示 . search（前往) |
