Android custom camera
https://github.com/miqt/camera2
Camera2 must know will be
https://www.cnblogs.com/fuyaozhishang/p/9752581.html
Camera on the use of the new version of Android that is using Camera2 introduction cum MediaRecorder not solve Camera.PreviewCallback and at the same time
https://www.cnblogs.com/wytings/p/5951317.html
Android.hardware.camera2 use to create new custom camera
https://blog.csdn.net/qq_27512671/article/details/51026794
https://github.com/miqt/camera2
2. Turn off the phone android secretly record her people function realization (exit the program still video)
Note: The above 6.0 need to obtain permission to display on top of other layers
https://blog.csdn.net/huangxiaoguo1/article/details/53648825
3. Android WindowsManager suspension using local video playback window and downloaded online videos stored in the local
https://blog.csdn.net/d38825/article/details/79113890
Android audio and video learning the official demo resolve --Camera2 (1)
https://blog.csdn.net/qidanchederizi/article/details/79405062
Android audio and video learning the official demo resolve --Camera2 (2)
https://blog.csdn.net/qidanchederizi/article/details/79417084