The simplest answer is no, as you say. The SDK will actually try to return to the following:
- Log in to the Google+ app (this is a good result, but requires a Google+ app).
- Sign in with Chrome
- Sign in with Mobile Safari
You can control the first part using the trySSO flag of the GPPSignIn object - if you set it to NO, it will not try to use the Google+ application. Usually you need to try the Google+ app first. Sharing is always done via the web interface (chrome / safari) with the current version of the API (1.2.1).
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