Based on: https://github.com/Gericop/Android-Support-Preference-V7-Fix/blob/4c2bb2896895dbedb37b659b36bd2a96b33c1605/preference-v7/src/main/java/com/takisoft/fix/support/v7/preference/PreferenceCategory.java
Linear Supertypes
android.support.v7.preference.PreferenceCategory, PreferenceGroup, Preference, Comparable[Preference], AnyRef, Any
Based on: https://github.com/Gericop/Android-Support-Preference-V7-Fix/blob/4c2bb2896895dbedb37b659b36bd2a96b33c1605/preference-v7/src/main/java/com/takisoft/fix/support/v7/preference/PreferenceCategory.java