iphone - 打开 Mailcomposer 时如何显示键盘？

Question

我想在邮件编辑器打开时显示键盘而不采取任何操作。我的意思是当邮件编辑器自动打开时应该显示键盘。

Answer 1

据我所知，这是不可能的。您也许可以遍历 mailComposer 的 View 来查找适当的文本字段，但这是一件有风险的事情，并且容易损坏。

此外，它可能会让您的应用被拒绝。虽然还不是很清楚。来自 MFMailComposeViewController Class Reference :

Important: The mail composition interface itself is not customizable and must not be modified by your application. In addition, after presenting the interface, your application is not allowed to make further changes to the email content. The user may still edit the content using the interface, but programmatic changes are ignored. Thus, you must set the values of content fields before presenting the interface.