Releasing The Camera: "method Called After Release()" Exception

I'm trying to incorporate some camera-related features in my app. I open the camera manually and get the preview stream with setPreviewCallback and startPreview. I do not use the s

Solution 1:

The preview callback could cause this exception. onPreviewFrame() is not synchroneous, and it receives a Camera parameter that may become invalid when Camera.release() is performed. This could happen even if callbacks are not using a separate thread (highly recommended).

Before release(), call setPreviewCallback(null), and keep a global flag to discard callbacks after the camera is released.