如果已经设置好了bitmap函数 需要如何去让拍照和选择图片都同时调用bitmap

如果你已经有了一个能够将图片转换成bitmap的函数，那么你可以在拍照和选择图片的回调函数中调用这个函数来获取bitmap。以下是一个示例代码：

public class MainActivity extends AppCompatActivity {

    private ImageView imageView;

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

        imageView = findViewById(R.id.imageView);

        Button cameraButton = findViewById(R.id.cameraButton);
        cameraButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dispatchTakePictureIntent();
            }
        });

        Button galleryButton = findViewById(R.id.galleryButton);
        galleryButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                startActivityForResult(intent, 1);
            }
        });
    }

    private void dispatchTakePictureIntent() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            startActivityForResult(takePictureIntent, 2);
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        if (resultCode == RESULT_OK) {
            if (requestCode == 1) { // Gallery
                Uri selectedImage = data.getData();
                try {
                    Bitmap bitmap = getBitmapFromUri(selectedImage);
                    imageView.setImageBitmap(bitmap);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } else if (requestCode == 2) { // Camera
                Bundle extras = data.getExtras();
                Bitmap bitmap = (Bitmap) extras.get("data");
                imageView.setImageBitmap(bitmap);
            }
        }
    }

    private Bitmap getBitmapFromUri(Uri uri) throws IOException {
        ParcelFileDescriptor parcelFileDescriptor =
                getContentResolver().openFileDescriptor(uri, "r");
        FileDescriptor fileDescriptor = parcelFileDescriptor.getFileDescriptor();
        Bitmap bitmap = BitmapFactory.decodeFileDescriptor(fileDescriptor);
        parcelFileDescriptor.close();
        return bitmap;
    }
}

在这个示例代码中，拍照和选择图片的回调函数分别为 `onActivityResult` 方法中的 `requestCode` 为 `2` 和 `1` 的情况。在这两个分支中，我们分别调用了 `getBitmapFromUri` 方法来获取bitmap，并将其设置到ImageView中显示。你可以将你的bitmap转换函数放入 `getBitmapFromUri` 方法中，并将uri作为参数传递。