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myLoginButton

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ios - facebook swift sdk 0.2.0 swift 3.1 登录页面保持打开状态

我正在使用;swiftSDK0.2.0和swift3.1所以,在我的viewcontroller(initial.swift)上我已经importUIKitimportFacebookCoreimportFacebookLogin...overridefuncviewDidLoad(){ifletaccessToken=AccessToken.current{print("Userisalreadyloggedin")...}else{letloginButton=LoginButton(readPermissions:[.publicProfile,.email])loginButt