Hi ,
the Facebook login on iOS is restarting the application
so you can’t get user data in one click , first click to get the session , second click to get the data
the code is the corona example for facebook plugin with minor changes
add runtime event listener and remove the automatic login
please advise …
-- -- Project: Facebook Connect sample app -- -- Date: December 24, 2010 -- -- Version: 1.6 -- -- File name: main.lua -- -- Author: Corona Labs -- -- Abstract: Presents the Facebook Connect login dialog, and then posts to the user's stream -- (Also demonstrates the use of external libraries.) -- -- Demonstrates: webPopup, network, Facebook library -- -- File dependencies: facebook.lua -- -- Target devices: Simulator and Device -- -- Limitations: Requires internet access; no error checking if connection fails -- -- Update History: -- v1.1 Layout adapted for Android/iPad/iPhone4 -- v1.2 Modified for new Facebook Connect API (from build #243) -- v1.3 Added buttons to: Post Message, Post Photo, Show Dialog, Logout -- v1.4 Added ...{"publish\_stream"} .. permissions setting to facebook.login() calls. -- v1.5 Added single sign-on support in build.settings (must replace XXXXXXXXX with valid facebook appId) -- v1.6 Modified the build.settings file to get the plugin for iOS. -- -- Comments: -- Requires API key and application secret key from Facebook. To begin, log into your Facebook -- account and add the "Developer" application, from which you can create additional apps. -- -- IMPORTANT: Please ensure your app is compatible with Facebook Single Sign-On or your -- Facebook implementation will fail! See the following blog post for more details: -- http://www.coronalabs.com/links/facebook-sso -- -- Sample code is MIT licensed, see http://www.coronalabs.com/links/code/license -- Copyright (C) 2010 Corona Labs Inc. All Rights Reserved. -- -- Supports Graphics 2.0 --------------------------------------------------------------------------------------- local centerX = display.contentCenterX local centerY = display.contentCenterY local \_W = display.contentWidth local \_H = display.contentHeight -- Comment out the next line when through debugging your app. io.output():setvbuf('no') -- \*\*debug: disable output buffering for Xcode Console \*\*tjn local widget = require("widget") local facebook = require("facebook") local json = require("json") display.setStatusBar( display.HiddenStatusBar ) -- Facebook Commands local fbCommand -- forward reference local LOGOUT = 1 local SHOW\_DIALOG = 2 local POST\_MSG = 3 local POST\_PHOTO = 4 local GET\_USER\_INFO = 5 local GET\_PLATFORM\_INFO = 6 -- Layout Locations local ButtonOrigY = 175 local ButtonYOffset = 45 local StatusMessageY = 420 -- position of status message local background = display.newImage( "facebook\_bkg.png", centerX, centerY, true ) -- flag overrides large image downscaling -- This function is useful for debugging problems with using FB Connect's web api, -- e.g. you passed bad parameters to the web api and get a response table back local function printTable( t, label, level ) if label then print( label ) end level = level or 1 if t then for k,v in pairs( t ) do local prefix = "" for i=1,level do prefix = prefix .. "\t" end print( prefix .. "[" .. tostring(k) .. "] = " .. tostring(v) ) if type( v ) == "table" then print( prefix .. "{" ) printTable( v, nil, level + 1 ) print( prefix .. "}" ) end end end end local function createStatusMessage( message, x, y ) -- Show text, using default bold font of device (Helvetica on iPhone) local textObject = display.newText( message, 0, 0, native.systemFontBold, 24 ) textObject:setFillColor( 1,1,1 ) -- A trick to get text to be centered local group = display.newGroup() group.x = x group.y = y group:insert( textObject, true ) -- Insert rounded rect behind textObject local r = 10 local roundedRect = display.newRoundedRect( 0, 0, textObject.contentWidth + 2\*r, textObject.contentHeight + 2\*r, r ) roundedRect:setFillColor( 55/255, 55/255, 55/255, 190/255 ) group:insert( 1, roundedRect, true ) group.textObject = textObject return group end local statusMessage = createStatusMessage( " Not connected ", centerX, StatusMessageY ) -- New Facebook Connection listener -- local function listener( event ) --- Debug Event parameters printout -------------------------------------------------- --- Prints Events received up to 20 characters. Prints "..." and total count if longer --- print( "Facebook Listener events:" ) local maxStr = 20 -- set maximum string length local endStr for k,v in pairs( event ) do local valueString = tostring(v) if string.len(valueString) \> maxStr then endStr = " ... #" .. tostring(string.len(valueString)) .. ")" else endStr = ")" end print( " " .. tostring( k ) .. "(" .. tostring( string.sub(valueString, 1, maxStr ) ) .. endStr ) end --- End of debug Event routine ------------------------------------------------------- print( "event.name", event.name ) -- "fbconnect" print( "event.type:", event.type ) -- type is either "session" or "request" or "dialog" print( "isError: " .. tostring( event.isError ) ) print( "didComplete: " .. tostring( event.didComplete) ) ----------------------------------------------------------------------------------------- -- After a successful login event, send the FB command -- Note: If the app is already logged in, we will still get a "login" phase -- if ( "session" == event.type ) then -- event.phase is one of: "login", "loginFailed", "loginCancelled", "logout" statusMessage.textObject.text = event.phase -- tjn Added print( "Session Status: " .. event.phase ) if event.phase ~= "login" then -- Exit if login error return end -- The following displays a Facebook dialog box for posting to your Facebook Wall if fbCommand == SHOW\_DIALOG then -- "feed" is the standard "post status message" dialog facebook.showDialog( "feed", { name = "Test name", description = "Example description.", link = "http://www.coronasdk.com/" }) -- for "apprequests", message is required; other options are supported --[[facebook.showDialog( "apprequests", { message = "Example message." }) --]] end -- Request the Platform information (FB information) if fbCommand == GET\_PLATFORM\_INFO then facebook.request( "platform" ) -- \*\*tjn Displays info about Facebook platform end -- Request the current logged in user's info if fbCommand == GET\_USER\_INFO then facebook.request( "me" ) -- facebook.request( "me/friends" ) -- Alternate request end -- This code posts a photo image to your Facebook Wall -- if fbCommand == POST\_PHOTO then local attachment = { name = "Developing a Facebook Connect app using the Corona SDK!", link = "http://www.coronalabs.com/links/forum", caption = "Link caption", description = "Corona SDK for developing iOS and Android apps with the same code base.", picture = "http://www.coronalabs.com/links/demo/Corona90x90.png", actions = json.encode( { { name = "Learn More", link = "http://coronalabs.com" } } ) } facebook.request( "me/feed", "POST", attachment ) -- posting the photo end -- This code posts a message to your Facebook Wall if fbCommand == POST\_MSG then local time = os.date("\*t") local postMsg = { message = "Posting from Corona SDK! " .. os.date("%A, %B %e") .. ", " .. time.hour .. ":" .. time.min .. "." .. time.sec } facebook.request( "me/feed", "POST", postMsg ) -- posting the message end ----------------------------------------------------------------------------------------- elseif ( "request" == event.type ) then -- event.response is a JSON object from the FB server local response = event.response if ( not event.isError ) then response = json.decode( event.response ) if fbCommand == GET\_USER\_INFO then statusMessage.textObject.text = response.name printTable( response, "User Info", 3 ) print( "name", response.name ) elseif fbCommand == POST\_PHOTO then printTable( response, "photo", 3 ) statusMessage.textObject.text = "Photo Posted" elseif fbCommand == POST\_MSG then printTable( response, "message", 3 ) statusMessage.textObject.text = "Message Posted" else -- Unknown command response print( "Unknown command response" ) statusMessage.textObject.text = "Unknown ?" end else -- Post Failed statusMessage.textObject.text = "Post failed" printTable( event.response, "Post Failed Response", 3 ) end elseif ( "dialog" == event.type ) then -- showDialog response -- print( "dialog response:", event.response ) statusMessage.textObject.text = event.response end end --------------------------------------------------------------------------------------------------- -- NOTE: To create a mobile app that interacts with Facebook Connect, first log into Facebook -- and create a new Facebook application. That will give you the "API key" and "application secret" -- that should be used in the following lines: local appId = "XXXXXXXXXX" -- Add your App ID here (also go into build.settings and replace XXXXXXXXX with your appId under CFBundleURLSchemes) local apiKey = nil -- Not needed at this time --------------------------------------------------------------------------------------------------- local function onSystemEvent( event ) print("########### onSystemEvent -- " .. event.type.. "############") end Runtime:addEventListener( "system", onSystemEvent ) -- NOTE: You must provide a valid application id provided from Facebook if ( appId ) then --facebook.login( appId, listener ) -- \*\*\* -- \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Buttons Functions \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* -- \*\*\* local function postPhoto\_onRelease( event ) -- call the login method of the FB session object, passing in a handler -- to be called upon successful login. fbCommand = POST\_PHOTO facebook.login( appId, listener, {"publish\_actions"} ) end local function getInfo\_onRelease( event ) -- call the login method of the FB session object, passing in a handler -- to be called upon successful login. fbCommand = GET\_USER\_INFO facebook.login( appId, listener, {"publish\_actions"} ) end local function postMsg\_onRelease( event ) -- call the login method of the FB session object, passing in a handler -- to be called upon successful login. fbCommand = POST\_MSG facebook.login( appId, listener, {"publish\_actions"} ) end local function showDialog\_onRelease( event ) -- call the login method of the FB session object, passing in a handler -- to be called upon successful login. fbCommand = SHOW\_DIALOG facebook.login( appId, listener, {"publish\_actions"} ) end local function logOut\_onRelease( event ) -- call the login method of the FB session object, passing in a handler -- to be called upon successful login. fbCommand = LOGOUT facebook.logout() end -- \*\*\* -- \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* Create Buttons \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* -- \*\*\* -- "Post Photo with Facebook" button local fbButton = widget.newButton { defaultFile = "fbButton184.png", overFile = "fbButtonOver184.png", label = " Post Photo", labelColor = { default = { 255, 255, 255 }, }, onRelease = postPhoto\_onRelease, } fbButton.x = 160 fbButton.y = ButtonOrigY -- "Post Message with Facebook" button local fbButton2 = widget.newButton { defaultFile = "fbButton184.png", overFile = "fbButtonOver184.png", label = "Post Msg", labelColor = { default = { 255, 255, 255 }, }, onRelease = postMsg\_onRelease, } fbButton2.x = 160 fbButton2.y = ButtonOrigY + ButtonYOffset \* 1 -- "Show Dialog Info with Facebook" button local fbButton3 = widget.newButton { defaultFile = "fbButton184.png", overFile = "fbButtonOver184.png", label = " Show Dialog", labelColor = { default = { 255, 255, 255 }, }, onRelease = showDialog\_onRelease, } fbButton3.x = 160 fbButton3.y = ButtonOrigY + ButtonYOffset \* 2 -- "Get User Info with Facebook" button local fbButton4 = widget.newButton { defaultFile = "fbButton184.png", overFile = "fbButtonOver184.png", label = "Get User", labelColor = { default = { 255, 255, 255 }, }, onRelease = getInfo\_onRelease, } fbButton4.x = 160 fbButton4.y = ButtonOrigY + ButtonYOffset \* 3 -- "Logout with Facebook" button local fbButton5 = widget.newButton { defaultFile = "fbButton184.png", overFile = "fbButtonOver184.png", label = "Logout", labelColor = { default = { 255, 255, 255 }, }, onRelease = logOut\_onRelease, } fbButton5.x = 160 fbButton5.y = ButtonOrigY + ButtonYOffset \* 4 else -- Handle the response from showAlert dialog boxbox -- local function onComplete( event ) if event.index == 1 then system.openURL( "http://developers.facebook.com/docs/guides/canvas/" ) end end native.showAlert( "Error", "To develop for Facebook Connect, you need to get an API key and application secret. This is available from Facebook's website.", { "Learn More", "Cancel" }, onComplete ) end