如何将其他应用共享的图片Uri转换为文件？

import android.content.ContentResolver;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class ImageUriToFileConverter {
    public static File convertUriToFile(Intent intent) {
        Uri imageUri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
        if (imageUri == null) {
            // 图片Uri为空，处理异常情况
            return null;
        }

        ContentResolver contentResolver = getContentResolver();
        try {
            InputStream inputStream = contentResolver.openInputStream(imageUri);
            if (inputStream == null) {
                // 输入流为空，处理异常情况
                return null;
            }

            // 创建文件
            File file = createImageFile();

            // 将输入流写入文件
            BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
            BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(file));
            byte[] buffer = new byte[1024];
            int bytesRead;
            while ((bytesRead = bufferedInputStream.read(buffer)) != -1) {
                bufferedOutputStream.write(buffer, 0, bytesRead);
            }
            bufferedOutputStream.flush();

            // 关闭流
            bufferedInputStream.close();
            bufferedOutputStream.close();

            return file;
        } catch (IOException e) {
            e.printStackTrace();
            // 处理异常情况
            return null;
        }
    }

    private static ContentResolver getContentResolver() {
        // 返回ContentResolver对象，用于获取输入流
        // 这里需要根据具体的开发环境和框架进行实现
        return null;
    }

    private static File createImageFile() throws IOException {
        // 创建一个新的文件对象，指定文件的路径和名称
        String imageFileName = "image.jpg";
        File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
        File imageFile = new File(storageDir, imageFileName);
        if (!imageFile.exists()) {
            imageFile.createNewFile();
        }
        return imageFile;
    }
}