我react-native-camera在我的 iOS 应用上使用过，现在尝试向它添加焦点、亮度和缩放控件。到目前为止，我无法提出解决方案。知道怎么做吗？
我试图在不同的反应原生相机包中找到一个选项。也在他们的 git repos 中发布以寻求帮助。最后尝试了这篇文章：https ://medium.com/react-native-development/react-native-camera-app-with-live-preview-saturation-and-brightness-filters-d34535cc6d14他们在哪里从相机拍照每 5 毫秒调整一次亮度，这似乎很不稳定，它会使应用程序崩溃。
It is not possible to use the focus and zoom functionalities with react-native-camera.
Unluckily the focus api has many bugs and the zoom functionalities will not render fast enough with javascript.
Maybe a solution is not using react-native-camera and instead just writing an intent to open the default camera application
The following app uses this solution, all the camera functionalities work perfectly.
Could they re-open the issue as it seems to not be solved? Developers may need to review all the open issues to estimate the project deadlines.
