用于数学输入的自定义键盘

Question

如何显示只有数字和典型数学符号的键盘：圆括号，运算符(+,*,/,-,^)等。我正在寻找与iOS上的标准键盘具有相同外观和感觉的东西，可以移动，脱开和分离。我大概可以在UIView中使用按钮，但它不会像通常的键盘一样。

Answer 1

UIKeyboardType

The type of keyboard to display for a given text-based view. 

typedef enum { 
    UIKeyboardTypeDefault, 
    UIKeyboardTypeASCIICapable, 
    UIKeyboardTypeNumbersAndPunctuation, 
    UIKeyboardTypeURL, 
    UIKeyboardTypeNumberPad, 
    UIKeyboardTypePhonePad, 
    UIKeyboardTypeNamePhonePad, 
    UIKeyboardTypeEmailAddress, 
    UIKeyboardTypeDecimalPad, 
    UIKeyboardTypeTwitter, 
    UIKeyboardTypeAlphabet = UIKeyboardTypeASCIICapable 
} UIKeyboardType; 

设置为按您的要求。