AndroidAuthenticator.java 文件源码

@SuppressWarnings("deprecation")
@Override
public String getAuthToken() throws AuthFailureError {
    AccountManagerFuture<Bundle> future = mAccountManager.getAuthToken(mAccount,
            mAuthTokenType, mNotifyAuthFailure, null, null);
    Bundle result;
    try {
        result = future.getResult();
    } catch (Exception e) {
        throw new AuthFailureError("Error while retrieving auth token", e);
    }
    String authToken = null;
    if (future.isDone() && !future.isCancelled()) {
        if (result.containsKey(AccountManager.KEY_INTENT)) {
            Intent intent = result.getParcelable(AccountManager.KEY_INTENT);
            throw new AuthFailureError(intent);
        }
        authToken = result.getString(AccountManager.KEY_AUTHTOKEN);
    }
    if (authToken == null) {
        throw new AuthFailureError("Got null auth token for type: " + mAuthTokenType);
    }

    return authToken;
}