camera1-to-camerax

Remove all android.hardware.Camera instances, SurfaceHolder callbacks, and manual lifecycle handling, then add CameraX dependencies and bind Preview and ImageCapture use cases to a LifecycleOwner via ProcessCameraProvider. CameraX handles rotation and lifecycle automatically.

Use androidx.camera.compose.CameraXViewfinder with a SurfaceRequest state from the Preview use case's surface provider. Avoid wrapping PreviewView in AndroidView, which causes resizing issues; CameraXViewfinder requires CameraX 1.5.0 or higher.

CameraX 1.5.0 or higher provides the camera-compose artifact with CameraXViewfinder for Jetpack Compose. Version 1.3.0 or higher is the minimum for general interoperability with the core, camera2, lifecycle, and view artifacts.

The capture pipeline locks when the ImageProxy is not closed in the OnImageCapturedCallback. Always call image.close() after reading the buffer, or subsequent photo captures will be blocked.

Create a metering point using MeteringPointFactory (or SurfaceOrientedMeteringPointFactory in Compose) from the touch coordinates, build a FocusMeteringAction with FLAG_AF, and pass it to cameraControl.startFocusAndMetering. Do not compute focus matrices manually.