Question

我正在实施一个Android应用程序，用户订阅指定的youtube频道。我正在使用google api客户端库。我从开发者控制台获得了客户端json文件。

我使用了google api示例中的代码，例如添加subsription.java文件和auth.java进行授权和存储o-auth凭据

 private static final String CREDENTIALS_DIRECTORY = ".oauth-credentials";
 public static Credential authorize(List<String> scopes, String credentialDatastore) throws IOException {

  // Load client secrets. 
  Reader clientSecretReader = new InputStreamReader(Auth.class.getResourceAsStream("/client_secrets.json"));
  GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, clientSecretReader); 

  // Checks that the defaults have been replaced (Default = "Enter X here").    

  // This creates the credentials datastore at ~/.oauth-credentials/${credentialDatastore} 
  FileDataStoreFactory fileDataStoreFactory = new FileDataStoreFactory(new File(System.getProperty("user.home") + "/" + CREDENTIALS_DIRECTORY));
  DataStore<StoredCredential> datastore = fileDataStoreFactory.getDataStore(credentialDatastore);

我收到IO异常无法创建目录./o-authcredentials.Please指导我如何解决此异常

Answer 1

我将MainActivity作为参数传递给函数authorize，以便能够在不使用代码System.getProperty("user.home")的情况下获取数据存储的路径，代码始终返回空字符串。所以我得到了：

import android.util.Log;

public class Auth {
private static final String CREDENTIALS_DIRECTORY = ".oauth-credentials";
private final static String TAG = Auth.class.getSimpleName();

public static Credential authorize(List<String> scopes, String credentialDatastore, MainActivity mainActivity) throws Exception {
    ...
    String dataDir = mainActivity.getApplicationInfo().dataDir;
    String storePath = dataDir + File.separator + CREDENTIALS_DIRECTORY;
    Log.d(TAG, "storePath: " + storePath);

    File file=new File(storePath);
    FileDataStoreFactory fileDataStoreFactory = new FileDataStoreFactory(file);
    Log.d(TAG, "fileDataStoreFactory  successfully created");

    DataStore<StoredCredential> datastore = fileDataStoreFactory.getDataStore(credentialDatastore);
    Log.d(TAG, "datastore  successfully retrieved if existed or created if not existed yet");
    ...

无法创建/.oauth-credentials目录

1 个答案: