开源精心设计的Android应用程序的例子吗？
您可以推荐开放源代码的Android应用程序，可以是有价值的分析和学习Android的编程的？
Can you recommend open source android applications that can be valuable to analyze, and to learn android programming from?
是从Android开源项目适用于基本的学习？基本上，我在寻找的UI设计参考与源$ C $ C Android应用程序。
Is any app from the Android open source project suitable for basic learning?Basically, I am looking for android apps for UI design reference with source code.
所有提供与Android（日历，联系人，电子邮件等）都是开源的，但不是SDK中的应用程序。该人士为这些项目是在这里： https://android.googlesource.com/ （查看/平台/封装/应用）。我提到的这些来源几次当我使用的应用程序在手机上，并希望看到一个特别的功能是如何实现的。
All of the applications delivered with Android (Calendar, Contacts, Email, etc) are all open-source, but not part of the SDK. The source for those projects is here: https://android.googlesource.com/ (look at /platform/packages/apps). I've referred to those sources several times when I've used an application on my phone and wanted to see how a particular feature was implemented.