OAuth2 authentication can be used by Tango apps to access Internet resources. However, the OAuth2 transactions can conflict with the Tango service, disconnecting from it and losing device pose. Executing the OAuth2 procedure in a WebView does not conflict with the Tango service. Or executing the OAuth2 procedure in an intent and restarting the Tango service in the resume callback after the OAuth2 process is complete.

Position will drift if the user moves the phone while the app is suspended. The app can use ADF to relocalize on resume.

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