How to use SLRequest for change via iOS to via <AppName>

I goes through many link and tutorials but not working for me. Can anybody explain me How to use SLRequest for change via iOS to via MyAppName ?? step by step or give me some links which gives this solution in step by step.

EDIT: I have tried. Below is my code may be help.

    ACAccountStore *accountStore = [[ACAccountStore alloc] init];

    ACAccountType *facebookAccountType = [accountStore
                                          accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

        // Specify App ID and permissions
    NSDictionary *options = @{
                              ACFacebookAppIdKey: @"012345678912345",
                              ACFacebookPermissionsKey: @[@"publish_stream", @"publish_actions"],
                              ACFacebookAudienceKey: ACFacebookAudienceFriends
                              };

    [accountStore requestAccessToAccountsWithType:facebookAccountType
                                          options:options completion:^(BOOL granted, NSError *e) {
                                              if (granted) {
                                                  NSArray *accounts = [accountStore
                                                                       accountsWithAccountType:facebookAccountType];
                                                  facebookAccount = [accounts lastObject];
                                              }
                                              else
                                                  {
                                                      // Handle Failure
                                                  }
                                          }];

    NSDictionary *parameters = @{@"message": @"My first iOS 6 Facebook posting "};

    NSURL *feedURL = [NSURL URLWithString:@"https://graph.facebook.com/me/feed"];

    SLRequest *feedRequest = [SLRequest 
                              requestForServiceType:SLServiceTypeFacebook
                              requestMethod:SLRequestMethodPOST 
                              URL:feedURL 
                              parameters:parameters];

    feedRequest.account = self->facebookAccount;

    [feedRequest performRequestWithHandler:^(NSData *responseData, 
                                             NSHTTPURLResponse *urlResponse, NSError *error)
     {
         // Handle response
     }];
}

First of all set you facebook setting using Facebook developer account setting

then reset your simular or delete app from device.

Add and import this frameworks

#import <Accounts/Accounts.h>
#import <Social/Social.h>
#import <AdSupport/AdSupport.h>
#import <FacebookSDK/FacebookSDK.h> 

use this code for further process

in yourclass.h file

@property (nonatomic, strong)ACAccountStore *accountStore;

in yourclass.m file

@synthesize accountStore;

- (IBAction)facebookButtonTouch:(id)sender {

    if (self.accountStore == nil) 
        self.accountStore = [[ACAccountStore alloc] init];


    __block ACAccount *facebookAccount = nil;

      ACAccountType *facebookAccountType = [self.accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];

      NSArray * permissions = @[@"publish_stream", @"publish_actions",@"email"];
      NSMutableDictionary *options = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"your app id", ACFacebookAppIdKey, permissions, ACFacebookPermissionsKey, ACFacebookAudienceOnlyMe, ACFacebookAudienceKey, nil];



   [self.accountStore requestAccessToAccountsWithType:facebookAccountType
                                          options:options completion:^(BOOL granted, NSError *error)
     {
         if (granted)
         {
             NSArray *readPermissions = @[@"read_stream", @"read_friendlists"];
             [options setObject:readPermissions forKey: ACFacebookPermissionsKey];

             [self.accountStore requestAccessToAccountsWithType:facebookAccountType options:options completion:^(BOOL granted, NSError *error) {
                 if(granted && error == nil) {
                     /**
                      * We now should have some read permission
                      * Now we may ask for write permissions or
                      * do something else.
                      **/
                 } else {
                     NSLog(@"error is: %@",[error description]);
                 }
             }];

             NSArray *accounts = [self.accountStore accountsWithAccountType:facebookAccountType];
             facebookAccount = [accounts lastObject];
         }
         else {

             NSLog(@"error.localizedDescription======= %@", error.localizedDescription);
         }

     }];

    NSArray *accounts = [self.accountStore accountsWithAccountType:facebookAccountType];
    facebookAccount = [accounts lastObject];



//-------------- start code for posting message on wall via SLRequest------------------
    NSDictionary *parameters = @{@"message": @"Hi Friends i m ....."};

    NSURL *feedURL = [NSURL URLWithString:@"https://graph.facebook.com/me/feed"];

    SLRequest *feedRequest = [SLRequest
                              requestForServiceType:SLServiceTypeFacebook
                              requestMethod:SLRequestMethodPOST
                              URL:feedURL
                              parameters:parameters];

    feedRequest.account = facebookAccount;

    [feedRequest performRequestWithHandler:^(NSData *responseData,
                                             NSHTTPURLResponse *urlResponse, NSError *error)
     {
         NSLog(@"responseData %@",[[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]);
     }];

//-------------- end code for posting message on wall via SLRequest------------------

}

i hope it will help you. Thanks