Access youtube account with accountmanager

问题:

Im trying to access youtube account with account manager, meaning i want to access youtube with a account linked to my device and with this get youtube token to access user playlist and whatever. Freedi application for android doing somthing like this.

I used this code to get token

    am.getAuthToken(accounts[0], "youtube", true, new AccountManagerCallback<Bundle>() {

        @Override
        public void run(AccountManagerFuture<Bundle> future) {
            try {
                Bundle bundle = future.getResult();
                if (bundle.containsKey(AccountManager.KEY_INTENT)) {
                    Intent intent = bundle.getParcelable(AccountManager.KEY_INTENT);
                    intent.setFlags(intent.getFlags() & ~Intent.FLAG_ACTIVITY_NEW_TASK);
                    startActivityForResult(intent, 0);
                } else if (bundle.containsKey(AccountManager.KEY_AUTHTOKEN)) {
                    my_access_token = bundle.getString(AccountManager.KEY_AUTHTOKEN);
                    onActivityResult(0,1,null);
                }
            } catch (Exception e) {
                Log.e("TEST", e.getMessage(), e);
            }
        }
    }, null);

but the var my_access_token filled with token that youtube not recognize... how can i get youtube token from it? and how to get the user playlist?

回答1:

you're in luck as I just finished cracking this problem on the app I'm developing.

AccountManager.get(getApplicationContext()).getAuthTokenByFeatures("com.google", "oauth2:https://gdata.youtube.com", null, this,
    null, null, new AccountManagerCallback<Bundle>() {

        @Override
        public void run(AccountManagerFuture<Bundle> future) {
        try {
            Bundle bundle = future.getResult();
            String acc_name = bundle.getString(AccountManager.KEY_ACCOUNT_NAME);
            String auth_token = bundle.getString(AccountManager.KEY_AUTHTOKEN);

            Log.d(DEBUG_TAG, "name: " + acc_name + "; token: " + auth_token);

        } catch (Exception e) {
            Log.e(DEBUG_TAG, e.getClass().getSimpleName() + ": " + e.getMessage());
        }
        }
    }, null);

回答2:

I haven't used it myself in an app yet, and it might not be available on all Android devices, but my understanding is that the Google Play services now provides the best approach to getting OAuth 2 tokens (including those scoped to https://gdata.youtube.com). There's more info at

http://android-developers.blogspot.com/2012/09/google-play-services-and-oauth-identity.html

You could go with the AccountManager approach for wider compatibility, though.

回答3:

The confusing part is the authTokenType parameter, it must be complete with the spec for OAuth2 access, e.g.

"oauth2:https://gdata.youtube.com"

or

"oauth2:https://www.googleapis.com/auth/tasks"