当使用ActivityResultContracts.TakePicture获取图片时，如果在拍照后屏幕发生旋转，那么拍摄的照片将不会被保存。这是因为屏幕旋转会导致Activity被销毁和重建，在重建后与之前的Activity不同，可以导致丢失拍摄的照片。

要解决这个问题，可以在Activity的onSaveInstanceState方法中保存照片的URI，然后在重建Activity后恢复URI并将其用作保存照片的文件路径。以下是代码示例：

public class MainActivity extends AppCompatActivity {

    private Uri photoUri;

    private ActivityResultLauncher takePicture = registerForActivityResult(
            new ActivityResultContracts.TakePicture(),
            result -> {
                if (result) {
                    // do something with the photo
                }
            }
    );

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (savedInstanceState != null) {
            photoUri = savedInstanceState.getParcelable("photo_uri");
        }
    }

    @Override
    protected void onSaveInstanceState(@NonNull Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putParcelable("photo_uri", photoUri);
    }

    public void takePhoto(View view) {
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        photoUri = getPhotoUri();
        intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
        takePicture.launch(intent);
    }

    private Uri getPhotoUri() {
        File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), "photo.jpg");
        return FileProvider.getUriForFile(this, getPackageName() + ".provider", file);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == RESULT_OK && requestCode == REQUEST_OPEN_CAMERA) {
            // do something with the photo
        }
    }
}

在上面的代码中，我们在Activity