您需要删除你的注册preferenceFragment的 onCreateView 功能，因为你不能用充气充气的preferences。

You need to remove the onCreateView function in your SignUpPreferenceFragment because you cannot inflate the preferences using the inflater.

这就是你所得到的错误，指出存在夸大错误 preferenceScreen ，因为它不知道在XML的标记/类。

That is why you are getting the error stating that there is an error inflating PreferenceScreen because it does not understand that tag/class in the xml.

preferences.xml 是进行补充的充气preferencesFromResource 在的onCreate 。

Reference