java - AndroidHttp 类型中的方法 newCompatibleTransport() 引用了缺失的类型

Question

GoogleAccountCredential credential = GoogleAccountCredential
        .usingOAuth2(MainActivity.this,
                Arrays.asList(DriveScopes.DRIVE_FILE));
credential.setSelectedAccountName(driveAccountName);
//Errors on below line
HttpTransport ht = AndroidHttp.newCompatibleTransport();
Drive service = new Drive.Builder(ht, new GsonFactory(), credential).build();

1. HttpTransport cannot be resolved to a type

2. The method newCompatibleTransport() from the type AndroidHttp refers to the missing type HttpTransport

我在 libs 文件夹中添加了以下 jar 文件:

1. google-api-client-android-1.18.0-rc.jar
2. google-api-services-drive-v2-rev1-1.7.2-beta.jar
3. google-http-client-android-1.18.0-rc.jar
4. google-http-client-gson-1.18.0-rc.jar

Answer 1

必须使用:

google-http-client-1.18.0-rc.jar