如何拍摄PreviewView的照片？

val previewConfig = PreviewConfig.Builder().build()
val preview = Preview(previewConfig)

val imageCaptureConfig = ImageCaptureConfig.Builder().build()
val imageCapture = ImageCapture(imageCaptureConfig)

CameraX.bindToLifecycle(this, preview, imageCapture)

val file = File(externalMediaDirs.first(), "${System.currentTimeMillis()}.jpg")

imageCapture.takePicture(file, object : ImageCapture.OnImageSavedListener {
    override fun onImageSaved(file: File) {
        // 图像保存成功后的处理逻辑
    }

    override fun onError(imageCaptureError: ImageCapture.ImageCaptureError, message: String, cause: Throwable?) {
        // 图像保存失败后的处理逻辑
    }
})