Question

I am developing an iPhone application that will send sms the logged in user friends’. I am using FacebookConnect for the same. The problem is I am getting the uid of all friends but what is the way to send SMS to these uids(friends UID).

Thanks,
UPT

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Please have a look on the following code and I am not able to send the message to friends:
To get friends UID:

NSDictionary* params = [NSDictionary dictionaryWithObject:fql forKey:@"query"];

// sessionView = session;

[[FBRequest requestWithDelegate:self] call:@"facebook.friends.get" params:params];

in delegate:

-(void)request:(FBRequest*)request didLoad:(id)result

//doing the following code:

if (@”facebook.friends.get” == request.method) {

    NSArray* users = result;

    myList =[[NSArray alloc] initWithArray: users];

    for(NSInteger i=0;i<[users count];i++) {

        NSDictionary* user = [users objectAtIndex:i];

        NSString* uid = [user objectForKey:@"uid"];

        //          NSString* fql = [NSString stringWithFormat:

        //                           @"select name from user where uid == %@", uid];

        //NSDictionary* params = [NSDictionary dictionaryWithObject:fql forKey:@"query"];

        //[[FBRequest requestWithDelegate:self] call:@"facebook.fql.query" params:params];


        NSDictionary* params = [NSDictionary dictionaryWithObjectsAndKeys:uid, @"uid", @"checkSMSCanSend", @"callback", nil];
        [[FBRequest requestWithDelegate:self] call:@"facebook.sms.canSend" params:params];
    }

and for SMS.canSend:
if (@”facebook.sms.canSend” == request.method) {

    UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"SMS" message:@"User can send SMS successfully." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alert show];
    [alert release];
}

But this is not getting called.
Please help to SMS friends.

Answer 1

First you will need to check whether the user can send SMS-s and if you are allowed to:

http://developers.facebook.com/docs/reference/rest/sms.canSend

To ask extended permissions you’ll call something like this (http://developers.facebook.com/docs/reference/fql/permissions)

FBPermissionDialog* dialog = [[[FBPermissionDialog alloc] init] autorelease];
dialog.delegate = self;
dialog.permission = @"sms";
[dialog show];

If user has enabled SMS for your application you can send an SMS using

http://developers.facebook.com/docs/reference/rest/sms.send

NSDictionary* params = [NSDictionary dictionaryWithObjects:@"1234", @"uid", @"hellow world", @"message", nil];
[[FBRequest requestWithDelegate:self] call:@"facebook.sms.send" params:params];

For examples how to call Facebook API methods through iPhone go here: http://github.com/facebook/facebook-iphone-sdk/#readme

Editing my post to also answer to additional question poster posted as an answer

Your mistake is here, you are trying to compare strings using == operator.

if (@"facebook.friends.get" == request.method) 

this compares the addresses of two strings. To compare if the string contents are equal you should use isEqualToString method:

if([@"facebook.friends.get" isEqualToString:request.method])