How to extract facebook email from facebook ios sdk 3.1? -

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मैं एक webview ios app का निर्माण कर रहा हूं जो फेसबुक ईमेल का उपयोग करता है मैं अपनी समस्या के लिए googled और उन सभी जवाब इस समारोह से कुछ कर रहे हैं: 

  NSArray * अनुमतियाँ [[NSArray arrayWithObjects: @ "ईमेल", शून्य]; वापसी [एफबीएसएशन ओपनएक्टिवसेशनविड्थ रीडमिशनः अनुमतियां अनुमति दें यूआई: अनुमतिओगिनयूआई समापनहैंडलर: ^ (एफबीएसएशन * सत्र, एफबीएसएशन स्टेट स्टेट, एनएसईआरआर * एरर) {[सफ़ेशन सत्रः परिवर्तनः सत्र स्थितिः राज्य की त्रुटि: त्रुटि]; }];   
 लेकिन मैं इस से ईमेल नहीं चाहता हूं। क्या ऐसा करने का कोई तरीका है?  
 यदि मैं इस फ़ंक्शन का उपयोग कर रहा हूं, तो मुझे दो बार प्रवेश करना होगा जो कि कष्टप्रद है अगर इसके अलावा ईमेल पता प्राप्त करने का कोई तरीका नहीं है, तो क्या  लॉगिन  प्रक्रिया दो बार से बचने का कोई तरीका है?   
 
 
 आप इसके लिए  + requestForMe  का उपयोग कर सकते हैं:  
  - (शून्य) getUserEmail {[[एफबीसी अनुरोध अनुरोध] शुरूआती समाप्तिहैंडलर: ^ (एफबीसीएसीसी कनेक्शन कनेक्शन *, NSDictionary & lt; FBGraphUser & gt; * उपयोगकर्ता, NSError * त्रुटि) {if (! त्रुटि) {NSString * email = [उपयोगकर्ता ऑब्जेक्टफ़ोरकी: @ "ईमेल"]; एनएसएलॉग (@ "ईमेल:% @", ईमेल); }}]; }

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