该应用程序在“Google API 控制台”中注册为“已安装的应用程序”——这似乎是 Android 应用程序的正确设置，不是吗？
所以我确实有一个 Client-Id 而没有 Secret-Id。明确一点：它既不是 Web 应用程序，也不是 Google Drive-App——它是一个访问 Google Drive 云中其他用户数据的 Android 应用程序。
在应用程序中，我获取了帐户（作品），并且确实请求了一个令牌（作品）。现在我想使用该令牌和 Client-Id 连接到 Google Drive。结果是“401，无效凭证”。这段代码有什么问题？
public class ActivityMain extends Activity implements DialogInterface.OnClickListener {
// https://developers.google.com/drive/scopes
private static final String AUTH_TOKEN_TYPE = "oauth2:https://www.googleapis.com/auth/drive";
// https://code.google.com/apis/console/
private static final String CLIENT_ID = "999999999999999.apps.googleusercontent.com";
private AccountManager accountManager;
private Account[] accounts;
private String authName;
private String authToken;
@Override
public void onClick(final DialogInterface dialogInterface, final int item) {
processAccountSelected(accounts[item]);
}
@Override
public void onCreate(final Bundle bundle) {
super.onCreate(bundle);
setContentView(R.layout.activitymain);
accountManager = AccountManager.get(this);
accounts = accountManager.getAccountsByType("com.google");
if (accounts == null || accounts.length == 0) {
// TODO
} else if (accounts.length == 1) {
processAccountSelected(accounts[0]);
} else if (accounts.length > 1) {
showDialog(MyConstants.DIALOG_ACCOUNTCHOSER);
}
}
@Override
protected Dialog onCreateDialog(final int id) {
switch (id) {
case MyConstants.DIALOG_ACCOUNTCHOSER:
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
String[] names = new String[accounts.length];
for (int i = 0; i < accounts.length; i++) {
names[i] = accounts[i].name;
}
alertDialogBuilder.setItems(names, this);
alertDialogBuilder.setTitle("Select a Google account");
return alertDialogBuilder.create();
}
return null;
}
private void processAccountSelected(final Account account) {
if (account != null) {
authName = account.name.toString();
if (!Tools.isEmpty(authName)) {
Toast.makeText(this, authName, Toast.LENGTH_LONG).show();
accountManager.getAuthToken(account, AUTH_TOKEN_TYPE, null, this,
new AccountManagerCallback<Bundle>() {
public void run(final AccountManagerFuture<Bundle> future) {
try {
authToken = future.getResult().getString(
AccountManager.KEY_AUTHTOKEN);
processTokenReceived();
} catch (OperationCanceledException exception) {
// TODO
} catch (Exception exception) {
Log.d(this.getClass().getName(), exception.getMessage());
}
}
}, null);
}
}
}
private void processListFiles(final Drive drive) {
List<File> result = new ArrayList<File>();
Files.List request = null;
try {
request = drive.files().list();
} catch (IOException exception) {
}
do {
try {
FileList files = request.execute();
result.addAll(files.getItems());
request.setPageToken(files.getNextPageToken());
} catch (IOException exception) {
// --> 401 invalid credentials
}
} while (request.getPageToken() != null && request.getPageToken().length() > 0);
}
private void processTokenReceived() {
if (!Tools.isEmpty(authToken)) {
final HttpTransport transport = AndroidHttp.newCompatibleTransport();
final JsonFactory jsonFactory = new GsonFactory();
GoogleCredential credential = new GoogleCredential();
credential.setAccessToken(authToken);
Drive drive = new Drive.Builder(transport, jsonFactory, credential)
.setApplicationName(getString(R.string.txt_appname))
.setJsonHttpRequestInitializer(new GoogleKeyInitializer(CLIENT_ID))
.build();
if (drive != null) {
processListFiles(drive);
}
}
}
}
我不得不说这是一团糟。网络中有很多页面仅显示部分，并且有很多页面使用已弃用、丢失或不同的方法来做同样的事情。在我看来，没有两个页面显示了从 Android 应用程序中从 Google Drive 获取数据的相同方式。
非常感谢任何帮助。
编辑：我可以自己解决。这是不同变化的组合：
- 必须将 android:minSdkVersion="11" 设置为要求
- 必须使用当前的库：google-api-client-1.11.0-beta.jar、google-api-client-android-1.11.0-beta.jar、google-api-services-drive-v2-rev9-1.8 .0-beta.jar、google-http-client-1.11.0-beta.jar、google-http-client-android-1.11.0-beta.jar、google-http-client-gson-1.11.0-beta .jar、google-http-client-jackson2-1.11.0-beta.jar、google-oauth-client-1.11.0-beta.jar、gson-2.1.jar、guava-11.0.1.jar、jackson-core -2.0.5.jar，jsr305-1.3.9.jar
这是获取驱动器对象的当前部分：
GoogleCredential credential = new GoogleCredential();
credential.setAccessToken(authToken);
HttpTransport transport = AndroidHttp.newCompatibleTransport();
JsonFactory jsonFactory = new AndroidJsonFactory();
drive = new Drive.Builder(transport, jsonFactory, credential)
.setApplicationName(getString(R.string.txt_appname))
.setJsonHttpRequestInitializer(
new GoogleKeyInitializer(APIKEY_SIMPLE))
.build();
if (drive != null) {
}