修改手机键盘的iOS应用扩展

Question

我想扩展手机键盘的功能。

我找不到任何关于 iOS 8+ 是否有执行此操作的 API 的文档。如果可能的话，有人可以指点我一些文档吗？

Answer 1

链接https://developer.apple.com/library/content/documentation/General/Conceptual/ExtensibilityPG/CustomKeyboard.html说

Your custom keyboard is also ineligible to type into so-called phone pad objects, such as the phone number fields in Contacts. These input objects are exclusively for strings built from a small set of alphanumeric characters specified by telecommunications carriers and are identified by having one or another of the following two keyboard type traits:

UIKeyboardTypePhonePad

UIKeyboardTypeNamePhonePad

When a user taps in a phone pad object, the system temporarily replaces your keyboard with the appropriate, standard system keyboard. When the user then taps in a different input object that requests a standard keyboard via its type trait, your keyboard automatically resumes.