3周遅れぐらいでiOSのSocial.frameworkを使ってみる #iOS

twitterへの投稿

Social.frameworkのSLComposeViewControllerがお手軽でした。投稿クライアントはiOSとなります。

-(void)viewDidAppear:(BOOL)animated
{
    // エミュレータでも問題なく動く
    // postのクライアント表示はiOSになる。
    SLComposeViewController *twitterPostVC = [SLComposeViewController composeViewControllerForServiceType:SLServiceTypeTwitter];
    [twitterPostVC setInitialText:@"iOSのSocialFrameworkから投稿テスト。\nSLComposeViewController簡単。"];
    [self presentViewController:twitterPostVC animated:YES completion:nil];
}

Timelineの取得

OAuthのややこしいところをSLRequestが吸収してくれています。逆に戻り値はNSDataなので、それは自力でパースする必要があります（といってもNSJSONSerializationがよろしくやってくれる)。

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.accountStore = [[ACAccountStore alloc]init];
}

// ほぼコピペ
// https://dev.twitter.com/docs/ios/making-api-requests-slrequest
-(void)viewWillAppear:(BOOL)animated
{
    //  Step 0: Check that the user has local Twitter accounts
    if ([SLComposeViewController isAvailableForServiceType:SLServiceTypeTwitter]) {

        //  Step 1:  Obtain access to the user's Twitter accounts
        ACAccountType *twitterAccountType = [self.accountStore
                                             accountTypeWithAccountTypeIdentifier:
                                             ACAccountTypeIdentifierTwitter];
        [self.accountStore
         requestAccessToAccountsWithType:twitterAccountType
         options:NULL
         completion:^(BOOL granted, NSError *error) {
             if (granted) {
                 //  Step 2:  Create a request
                 NSArray *twitterAccounts =
                 [self.accountStore accountsWithAccountType:twitterAccountType];
                 NSURL *url = [NSURL URLWithString:@"https://api.twitter.com"
                               @"/1.1/statuses/user_timeline.json"];
                 NSDictionary *params = @{@"screen_name" : @"paming",
                                          @"include_rts" : @"0",
                                          @"trim_user" : @"1",
                                          @"count" : @"10"};
                 SLRequest *request =
                 [SLRequest requestForServiceType:SLServiceTypeTwitter
                                    requestMethod:SLRequestMethodGET
                                              URL:url
                                       parameters:params];

                 //  Attach an account to the request
                 [request setAccount:[twitterAccounts lastObject]];

                 //  Step 3:  Execute the request
                 [request performRequestWithHandler:^(NSData *responseData,
                                                      NSHTTPURLResponse *urlResponse,
                                                      NSError *error) {
                     if (responseData) {
                         if (urlResponse.statusCode >= 200 && urlResponse.statusCode < 300) {
                             NSError *jsonError;
                             // サンプルではDictionaryだけど、Arrayが戻ってきてる
                             // JSONがArrayだし。
                             NSArray *timelineData =
                             [NSJSONSerialization
                              JSONObjectWithData:responseData
                              options:NSJSONReadingAllowFragments error:&jsonError];
                             NSLog(@"class=%@",[timelineData class]);
                             if (timelineData) {
//                                 NSLog(@"Timeline Response: %@\n", timelineData);
                                 for (NSDictionary *dic in timelineData) {
                                     NSLog(@"%@",[dic objectForKey:@"text"]);
                                 }
                             }
                             else {
                                 // Our JSON deserialization went awry
                                 NSLog(@"JSON Error: %@", [jsonError localizedDescription]);
                             }
                         }
                         else {
                             // The server did not respond successfully... were we rate-limited?
                             NSLog(@"The response status code is %d", urlResponse.statusCode);
                         }
                     }
                 }];
             }
             else {
                 // Access was not granted, or an error occurred
                 NSLog(@"%@", [error localizedDescription]);
             }
         }];
    }
}

UserStreamを取得

SLRequestを使い、UserStreamも読み取れました。SLRequestからNSURLRequestを取得し、NSURLConnection(とNSURLConnectionDataDelegate)を使いデータを読み込み続けます。

-(void)viewDidAppear:(BOOL)animated
{

    NSURL *url = [NSURL URLWithString:@"https://userstream.twitter.com/1.1/user.json"];
    NSDictionary *params = nil;
    SLRequest *request =
    [SLRequest requestForServiceType:SLServiceTypeTwitter
                       requestMethod:SLRequestMethodGET
                                 URL:url
                          parameters:params];
    ACAccountType *twitterAccountType = [self.accountStore
                                         accountTypeWithAccountTypeIdentifier:
                                         ACAccountTypeIdentifierTwitter];
    NSArray *twitterAccounts =
    [self.accountStore accountsWithAccountType:twitterAccountType];
    ACAccount *account = [twitterAccounts lastObject];
    [request setAccount:account];

    self.connection = [NSURLConnection connectionWithRequest:request.preparedURLRequest delegate:self];

    [self.connection scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
    [self.connection start];


}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    NSLog(@"%@",response);
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    NSError *jsonError;
    id jsonObj =
    [NSJSONSerialization JSONObjectWithData:data
                                    options:NSJSONReadingAllowFragments
                                      error:&jsonError];
    NSLog(@"%@",jsonObj);
}

3周遅れぐらいでiOSのSocial.frameworkを使ってみる

twitterへの投稿

Timelineの取得

UserStreamを取得

関連リンク