ライブラリ追加

Twitter.framework

実装

Hoge.h

#import <Foundation/Foundation.h>
#import "cocos2d.h"
#import <Twitter/Twitter.h>

@interface Hoge : CCLayer {
    UIViewController* viewController;
}
@property(nonatomic,retain) UIViewController* viewController;
@end

Hoge.m

@synthesize viewController;

-(id) init
{
    self = [super init];
    if (self) {
        CGSize screenSize = [[CCDirector sharedDirector] 
        
        // uiview for twitter
        viewController = [[UIViewController alloc] init];
        
        // メニュー
        CCMenuItemFont *menuTwitter = [CCMenuItemFont itemFromString:@"つぶやく" target:self selector: @selector(onTwitter:)];

        CCMenu *menu = [CCMenu menuWithItems:menuTwitter, nil];
        menu.position = ccp(160, screenSize.height - 200);
        [menu alignItemsVerticallyWithPadding: 20.0f];
        [self addChild:menu z:1];

        self.isTouchEnabled = YES;
    }
    
    return self;
}


- (void) onTwitter:(id)sender
{
    if ([TWTweetComposeViewController canSendTweet]) // Check if twitter is setup and reachable
    {
        TWTweetComposeViewController *tweetViewController = [[TWTweetComposeViewController alloc] init];
        
        // set initial text
        [tweetViewController setInitialText:@"Greetings Twitterverse!"];
        
        // setup completion handler
        tweetViewController.completionHandler = ^(TWTweetComposeViewControllerResult result) {
            if(result == TWTweetComposeViewControllerResultDone) {
                // the user finished composing a tweet
            } else if(result == TWTweetComposeViewControllerResultCancelled) {
                // the user cancelled composing a tweet
            }
            [viewController dismissViewControllerAnimated:YES completion:nil];
        };
        
        // present view controller
        [[[CCDirector sharedDirector] openGLView] addSubview:viewController.view];
        [viewController presentViewController:tweetViewController animated:YES completion:nil];
        
    }
    else
    {
        // Twitter account not configured, inform the user
        NSLog(@"NO TWITTER ACCOUNT CONFIGURED. DO SOMETHING");
        UIAlertView* alertView = 
        [[[UIAlertView alloc] initWithTitle: @"未登録" 
                                    message: @"ついったーにあかうんと登録してください?" 
                                   delegate: self 
                          cancelButtonTitle: nil
                          otherButtonTitles: @"OK", nil] autorelease];
        [alertView show];
    }
}

Reference

Adding iOS5 native Twitter support to your cocos2d app