IOS-Twitter和Facebook

簡介

Twitter已經整合到iOS5.0，而Facebook已經被集成在 iOS 6.0中。本教學的重點講解如何利用蘋果提供的類在iOS5.0和iOS6.0中部署Twitter和Facebook。

實例步驟

1. 創建一個簡單View based application

2. 選擇專案檔，然後選擇"targets(目標)"，然後在 choose frameworks（選擇框架）中添加Social.framework 和 Accounts.framework

3. 添加兩個名為facebookPost 和 twitterPost的按鈕，並為他們創建 ibActions。

4. 更新 ViewController.h 如下

#import <Social/Social.h>
#import <Accounts/Accounts.h>
#import <UIKit/UIKit.h>

@interface ViewController : UIViewController

-(IBAction)twitterPost:(id)sender;
-(IBAction)facebookPost:(id)sender;

@end

5. 更新ViewController.m ，如下所示

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

-(IBAction)facebookPost:(id)sender{

   SLComposeViewController *controller = [SLComposeViewController
   composeViewControllerForServiceType:SLServiceTypeFacebook];
   SLComposeViewControllerCompletionHandler myBlock =
   ^(SLComposeViewControllerResult result){
          if (result == SLComposeViewControllerResultCancelled)
          {
            NSLog(@"Cancelled");
          }
          else
          {
            NSLog(@"Done");
          }
          [controller dismissViewControllerAnimated:YES completion:nil];
        };
   controller.completionHandler =myBlock;
   //Adding the Text to the facebook post value from iOS
   [controller setInitialText:@"My test post"];
   //Adding the URL to the facebook post value from iOS
   [controller addURL:[NSURL URLWithString:@"http://www.test.com"]];
   //Adding the Text to the facebook post value from iOS
   [self presentViewController:controller animated:YES completion:nil];
}

-(IBAction)twitterPost:(id)sender{
    SLComposeViewController *tweetSheet = [SLComposeViewController
    composeViewControllerForServiceType:SLServiceTypeTwitter];
    [tweetSheet setInitialText:@"My test tweet"];
    [self presentModalViewController:tweetSheet animated:YES];
}

@end

輸出

運行該應用程式並單擊 facebookPost 時我們將獲得以下輸出

FBTwit_Output1

當我們單擊 twitterPost 時，我們將獲得以下輸出

FBTwit_Output2