在网上发现几个使用Camera API2开发的实例程序，总结一下方便后续参考：

1.Camera2 Basic : https://github.com/googlesamples/android-Camera2Basic

This sample demonstrates how to use basic functionalities of Camera2 API. You can learn how to iterate through characteristics of all the cameras attached to the device, display a camera preview, and take pictures.

2.Camera2 Video: https://github.com/googlesamples/android-Camera2Video

This sample shows how to record video using the new Camera2 API in Android Lollipop.

3.Camera2 master: http://www.eyesourcecode.com/thread-35378-1-1.html

使用Android L Camera2 API开发的示例应用程序，具备拍照，AWB，Flash，连拍功能

4.LCamera http://www.eyesourcecode.com/thread-35377-1-1.html

L Camera是一个开源的实验性质的Camera应用程序，基于Android L提供的新API android.hardware.camera2，目前只支持在Andorid 5.0 Lollipop版本的Nexus 5和Nexus 6上运行

Android L Camera2 API 使用实例程序汇总