问从Intent.ACTION_GET_CONTENT读取Uri是否需要READ_EXTERNAL_STORAGE权限

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Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("application/zip");
startActivityForResult(intent, RequestCode.REQUEST_CHOOSE_BACKUP_FILE);

Uri uri = data.getData();

// Figure out extension
ContentResolver contentResolver = getContext().getContentResolver();
MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
final String extension = mimeTypeMap.getExtensionFromMimeType(contentResolver.getType(uri));

File temp = null;
try {
    temp = File.createTempFile(Utils.getJStockUUID(), "." + extension);
} catch (IOException e) {
    e.printStackTrace();
}

// Delete temp file when program exits.
temp.deleteOnExit();

InputStream inputStream = null;
OutputStream outputStream = null;

try {
    inputStream = getContext().getContentResolver().openInputStream(uri);
    outputStream = new FileOutputStream(temp);

    byte[] buffer = new byte[8 * 1024];
    int bytesRead;
    while ((bytesRead = inputStream.read(buffer)) != -1) {
        outputStream.write(buffer, 0, bytesRead);
    }
} catch (IOException e) {
    Log.e(TAG, "", e);
} finally {
    close(outputStream);
    close(inputStream);
}