Java Android studio应用程序-如何在用相机拍摄照片后正确重命名？

File photoDirectory = new File(Environment.getExternalStorageDirectory(), "Photos");
if (!photoDirectory.exists()) {
    photoDirectory.mkdirs();
}

Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
    // 创建一个用于保存照片的文件
    File photoFile = createPhotoFile();
    if (photoFile != null) {
        Uri photoUri = FileProvider.getUriForFile(this, "com.example.android.fileprovider", photoFile);
        takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
        startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
    }
}

private File createPhotoFile() throws IOException {
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
    String imageFileName = "IMG_" + timeStamp + "_";
    File storageDir = new File(Environment.getExternalStorageDirectory(), "Photos");
    return File.createTempFile(imageFileName, ".jpg", storageDir);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
        // 获取拍摄的照片
        File photoFile = getLatestPhotoFile();
        if (photoFile != null) {
            // 重命名照片
            File renamedFile = renamePhotoFile(photoFile);
            if (renamedFile != null) {
                // 在这里可以使用重命名后的照片文件进行其他操作
            }
        }
    }
}

private File getLatestPhotoFile() {
    File storageDir = new File(Environment.getExternalStorageDirectory(), "Photos");
    File[] files = storageDir.listFiles();
    if (files != null && files.length > 0) {
        Arrays.sort(files, new Comparator<File>() {
            @Override
            public int compare(File file1, File file2) {
                return Long.compare(file2.lastModified(), file1.lastModified());
            }
        });
        return files[0];
    }
    return null;
}

private File renamePhotoFile(File photoFile) {
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault()).format(new Date());
    String newFileName = "IMG_" + timeStamp + ".jpg";
    File renamedFile = new File(photoFile.getParent(), newFileName);
    if (photoFile.renameTo(renamedFile)) {
        return renamedFile;
    }
    return null;
}