java - 使用Google登录授权YouTube数据API

Question

我一直遵循this article将Google登录功能实现到Android应用中。

最后的代码为我们提供了一个GoogleSignInAccount对象，该对象包含有关已登录用户的信息:

private void handleSignInResult(GoogleSignInResult result) {
    Log.d(TAG, "handleSignInResult:" + result.isSuccess());
    if (result.isSuccess()) {
        // Signed in successfully, show authenticated UI.
        GoogleSignInAccount acct = result.getSignInAccount();
        mStatusTextView.setText(getString(R.string.signed_in_fmt, acct.getDisplayName()));
        updateUI(true);
    } else {
        // Signed out, show unauthenticated UI.
        updateUI(false);
    }
}

在YouTube数据API的所有 code samples provided中，都使用以下身份验证代码:

public static Credential authorize() throws IOException {
    // Load client secrets.
    InputStream in = ApiExample.class.getResourceAsStream("/client_secret.json");
    GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader( in ));

    // Build flow and trigger user authorization request.
    GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
    HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
        .setDataStoreFactory(DATA_STORE_FACTORY)
        .setAccessType("offline")
        .build();
    Credential credential = new AuthorizationCodeInstalledApp(
    flow, new LocalServerReceiver()).authorize("user");
    System.out.println(
        "Credentials saved to " + DATA_STORE_DIR.getAbsolutePath());
    return credential;
}

现在，因为我已经使用Google登录进行了身份验证，如何使用 Credential对象创建 GoogleSignInAccount对象并传递给 YouTube.Builder 呢？

Answer 1

public static final Collection<String> YOUTUBE_SCOPE = Arrays.asList("https://www.googleapis.com/auth/youtube.force-ssl https://www.googleapis.com/auth/youtubepartner");

...

private void handleSignInResult(GoogleSignInResult result) {

    ...

    GoogleAccountCredential credential = GoogleAccountCredential.usingOAuth2(context, YOUTUBE_SCOPE);
    credential.setSelectedAccount(acct.getAccount());

    ...

}

Source