Android 10 (API 29)引入了相机2 API的回归，使开发人员可以更容易地访问广角相机。以下是一个包含代码示例的解决方法：

1. 在build.gradle文件中，确保您的应用程序使用了Android 10 API级别：

android {
    compileSdkVersion 29
    defaultConfig {
        ...
        targetSdkVersion 29
        ...
    }
    ...
}

2. 在AndroidManifest.xml文件中添加相机权限：

3. 在需要使用相机的Activity或Fragment中，添加以下成员变量：

private CameraManager cameraManager;
private String cameraId;
private CameraDevice cameraDevice;
private CameraCaptureSession cameraCaptureSession;
private CaptureRequest.Builder captureRequestBuilder;
private ImageReader imageReader;

4. 在onCreate方法中初始化相机相关对象：

cameraManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
cameraId = getCameraId();

其中，getCameraId()方法用于获取广角相机的ID。您可以根据需要选择前置或后置相机。

5. 在onResume方法中打开相机：

@Override
protected void onResume() {
    super.onResume();
    openCamera();
}

6. 在openCamera方法中打开相机：

private void openCamera() {
    try {
        cameraManager.openCamera(cameraId, cameraStateCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

其中，cameraStateCallback是一个CameraDevice.StateCallback对象，用于处理相机的打开和关闭状态。

7. 在cameraStateCallback中，实现相机打开的回调方法：

private CameraDevice.StateCallback cameraStateCallback = new CameraDevice.StateCallback() {
    @Override
    public void onOpened(CameraDevice camera) {
        cameraDevice = camera;
        createCameraPreviewSession();
    }

    @Override
    public void onDisconnected(CameraDevice camera) {
        cameraDevice.close();
    }

    @Override
    public void onError(CameraDevice camera, int error) {
        cameraDevice.close();
    }
};

其中，createCameraPreviewSession()方法用于创建相机预览会话。

8. 在createCameraPreviewSession方法中，创建相机预览会话：

private void createCameraPreviewSession() {
    try {
        SurfaceTexture surfaceTexture = textureView.getSurfaceTexture();
        surfaceTexture.setDefaultBufferSize(previewSize.getWidth(), previewSize.getHeight());

        Surface previewSurface = new Surface(surfaceTexture);
        Surface imageSurface = imageReader.getSurface();

        captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
        captureRequestBuilder.addTarget(previewSurface);
        captureRequestBuilder.addTarget(imageSurface);

        cameraDevice.createCaptureSession(Arrays.asList(previewSurface, imageSurface), captureSessionCallback, null);
    } catch (CameraAccessException e) {
        e.printStackTrace();
    }
}

其中，textureView是一个用于显示相机预览的TextureView对象，previewSize是预览的尺寸。

9. 在captureSessionCallback中，实现相机预览会话的回调方法：

private CameraCaptureSession.StateCallback captureSessionCallback = new CameraCaptureSession.StateCallback() {
    @Override
    public void onConfigured(CameraCaptureSession session) {
        cameraCaptureSession = session;

        try {
            captureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
            captureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);

            CaptureRequest captureRequest = captureRequestBuilder.build();
            cameraCaptureSession.setRepeatingRequest(captureRequest, null, null);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onConfigureFailed(CameraCaptureSession session) {
        Toast.makeText(MainActivity.this, "Camera configuration failed.", Toast.LENGTH_SHORT).show();
    }
};

其中，设置了自动对焦和自动闪光灯。

10. 在onPause方法中释放相机资源：

@Override
protected void onPause() {
    closeCamera();
    super.onPause();
}

11. 在closeCamera方法中关闭相机：

private void closeCamera() {
    if (cameraCaptureSession != null) {
        cameraCaptureSession.close();
        cameraCaptureSession = null;
    }