What features are supported by Android's Google accounts authenticator?
问题 The API documentation for the hasFeatures method of Android's AccountManager has the following to say about which features are supported by each authenticator: Account features are authenticator-specific string tokens identifying boolean account properties. For example, features are used to tell whether Google accounts have a particular service (such as Google Calendar or Google Talk) enabled. The feature names and their meanings are published somewhere associated with the authenticator in