如何使用Flutter访问Google云端硬盘的appdata文件夹文件？

对我来说，以下的作品，（使用HTTP包

get

post

验证令牌

您可以从返回的accoutn中检索auth令牌

signIn

Future<String> _getAuthToken() async {  final account = await sign_in_options.signIn();  if (account == null) {    return null;  }  final authentication = await account.authentication;  return authentication.accessToken;}

搜索

要在AppData目录中搜索文件，您需要添加

spaces

appDataFolder

final Map<String, String> queryParameters = {  'spaces': 'appDataFolder',  // more query parameters};final headers = { 'Authorization': 'Bearer $authToken' };final uri = Uri.https('www.googleapis.com', '/drive/v3/files', queryParameters);final response = await get(uri, headers: headers);

上载

要上传文件，您需要为初始上传请求设置正文的

parents

appDataFolder

final headers = { 'Authorization': 'Bearer $authToken' };final initialQueryParameters = { 'uploadType': 'resumable' };final Map<String, dynamic> metaData = {   'name': fileName,  'parents': ['appDataFolder ']};final initiateUri = Uri.https('www.googleapis.com', '/upload/drive/v3/files', initialQueryParameters);final initiateResponse = await post(initiateUri, headers: headers, body: json.enpre(metaData));final location = initiateResponse.headers['location'];

下载

要下载文件，您只需要知道

fileId

final headers = { 'Authorization': 'Bearer $authToken' };final url = 'https://www.googleapis.com/drive/v3/files/$fileId?alt=media';final response = await get(url, headers: headers);