XJSafeKeyboard

iOS安全键盘，支持随机字母、数字、字符。更多交流请加群：高级iOS开发交流群 855808379,371918802
使用方法：把需要安全键盘的UITextField类名，替换成XJSafeTextField即可。
注意：xib创建的，记得在xib修改Class

iOS security keyboard, supports random letters, numbers, characters. More exchanges, please add group: advanced iOS development exchange group 855808379,371918802
How to use: Replace the UITextField class name that requires a secure keyboard with XJSafeTextField.
Note: The xib is created, remember to modify the class in xib