使用自定义相机，拍出来的照片是黑色的

大神您好，我用了自定义相机模式，引入了 implementation 'androidx.camera:camera-core:1.0.0-rc04'
implementation 'androidx.camera:camera-camera2:1.1.0-alpha10'，这两条依赖，但是我拍出来的照片都是黑色的，去输出路径看拍出来的照片了，确实是黑的。但是用您demo的自定义相机拍出来的照片是正常的，是因为我少配置了什么吗？希望您可以回复我一下，十分感谢！

Start by comparing the custom camera setup with the repository's demo custom-camera configuration, focusing on the two AndroidX Camera dependencies listed in the report. Reproduce the capture and inspect the saved output; done means custom-camera photos are no longer black, as in the demo.

Written by the indexing model from the issue text.