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Q:UIActivity Subclass Mail

Q:uiactivity类邮件

I am using UIActivityViewController to share data from my app. I know how I can create a custom UIActivity subclass and include that on my share sheet.

However, is it possible to customise the system activities? For example, I want to send some data via an email. Can I customise the system one to take my data, subject etc?

I don't want to exclude UIActivityTypeMail and then just create a custom one, I want my data etc going through the system Mail activity.

我用UIActivityViewController分享我的应用程序数据。我知道我可以创建一个自定义的uiactivity亚纲,包括我分享表。

然而,它是可能的定制系统的活动吗?例如,我想通过电子邮件发送一些数据。我可以定制系统把我的资料、主题等?

我不想排除uiactivitytypemail再创建一个自定义的一个,我希望我的数据等通过系统邮件活动。

ios  objective-c  uiactivityviewcontroller  uiactivity