小编Ali*_*nov的帖子

我的基础片段：

abstract class BaseFragment<ViewModel : BaseViewModel, Binding : ViewBinding> : Fragment() {

    protected abstract val viewModel: ViewModel
    private var _binding: Binding? = null
    protected val binding get() = _binding!!

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
    ): View? {
        _binding = Binding.inflate(inflater, container, false) //This line not working
        return binding.root
    }

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        initialize()
        setupListeners()
        observe()
    }

    abstract fun initialize()

    abstract fun setupListeners()

    abstract fun observe()

    override fun onDestroyView() …

我在 android 文档中的教程中使用 CameraX 时遇到了一个问题，找不到方法 createSurfaceProvider()

我正在使用这些库： camerax_version = "1.0.0-beta10"

代码：

@Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        previewView = view.findViewById(R.id.previewView);

        ListenableFuture<ProcessCameraProvider> cameraProviderFuture =
                ProcessCameraProvider.getInstance(requireContext());

        cameraProviderFuture.addListener(() -> {
            try {
                ProcessCameraProvider cameraProvider = cameraProviderFuture.get();
                bindPreview(cameraProvider);

            } catch (InterruptedException | ExecutionException e) {

            }
        }, ContextCompat.getMainExecutor(requireContext()));
    }

    private void bindPreview(ProcessCameraProvider cameraProvider) {
        Preview preview = new Preview.Builder().build();

        imageCapture = new ImageCapture.Builder()
                .setCaptureMode(ImageCapture.CAPTURE_MODE_MINIMIZE_LATENCY)
                .build();

        CameraSelector cameraSelector = new CameraSelector.Builder()
                .requireLensFacing(CameraSelector.LENS_FACING_BACK)
                .build();

        Camera camera = cameraProvider.bindToLifecycle(
                ((LifecycleOwner) …