https://packages.nuget.org/packages/Xamarin.Android.Support.v7.AppCompat/
NuGet Gallery | Xamarin.Android.Support.v7.AppCompat 28.0.0.3
Xamarin.Android bindings for Android Support Library - appcompat-v7
nuget galleryxamarin androidsupportappcompat
https://android.googlesource.com/platform/cts/+/android16-qpr1-release/hostsidetests/appcompat/OWNERS?autodive=0%2F%2F
hostsidetests/appcompat/OWNERS - platform/cts - Git at Google
appcompatownersplatformctsgit
https://routinepanic.com/questions/error-retrieving-parent-for-item-no-resource-found-that-matches-the-given-name
检索项目的父项时出错：升级到 AppCompat v23 后找不到与给定名称匹配的资源 - 协慌网
我一直用Eclipse编程Android，并决定开始迁移到Android Studio 。我决定使用我已经用于Eclipse的相同SDK，然后：
appcompat
https://doxygen.reactos.org/df/dd8/sdbwrite_8c_source.html
ReactOS: dll/appcompat/apphelp/sdbwrite.c Source File
c sourcereactosdllappcompatapphelp