Keep Facebook access token always active

Question

I wonder how can I confidently keep my Facebook access token always active.

Is it enough to subscribe to token updates with AccessTokenTracker , or it's also/instead need to check token expiration before every call to API with AccessToken.isExpired() and then refresh token by AccessToken.refreshCurrentAccessTokenAsync(callback) ?

For example: would AccessTokenTracker bring new access token after app has started? It means, that token has been expired when app was closed.

Answer 1

通过在每次调用Facebook API之前检查AccessToken.isExpired()解决，然后在令牌过期时调用AccessToken.refreshCurrentAccessTokenAsync