SDKの置き場所

Google+ Platform on iOS

インストールまで

参考

Getting Started with the Google+ Platform for iOS

ファイルをコピペする

OpenSourceファイル
GoogleOpenSource.framework
GooglePlus.bundle
GooglePlus.framework

の4点

frameworkを追加する

GooglePlus.framework
GooglePlus.bundle
GoogleOpenSource.framework

と

SystemConfiguration.framework
Security.framework
CoreGraphics.framework
CoreMotion.framework

最低限この辺

ARC対応していないので

You need to disable "Automatic Reference Counting" for select files in the Google+ iOS SDK. Navigate to your project's settings, click Targets > Build Phases > and add the -fno-objc-arc compiler flag for every open source dependency provided by the Google+ iOS SDK.

Build Phase＞Compile Sources　でGTM〜とGTL〜なファイルに「-fno-objc-arc」をつけていく。

アプリのOAuth認証

参考

Google+ Sign-In for iOS

OAuth認証の準備

Google Developers ConsoleのAPIと認証＞API
Google+ APIを有効にする
Google Developers ConsoleのAPIと認証＞認証情報
OAuthからアプリのBundle IDでClient IDを発行する。

アプリのOAuth認証

AppDelegate.m

//インポートして
# import <GooglePlus/GooglePlus.h>
...
//Delegateつけて
@interface AppDelegate () <GPPDeepLinkDelegate>
@end
...
//Client IDをいれて
static NSString * const kClientId = @"YOUR_CLIENT_ID";
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //Client IDつっこんで認証
    [GPPSignIn sharedInstance].clientID = kClientID;
    // Read Google+ deep-link data.
    [GPPDeepLink setDelegate:self];
    [GPPDeepLink readDeepLinkAfterInstall];
    return YES;
}

- (BOOL)application:(UIApplication *)application
            openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication
         annotation:(id)annotation {
    return [GPPURLHandler handleURL:url
                  sourceApplication:sourceApplication
                         annotation:annotation];
}

# pragma mark - GPPDeepLinkDelegate
- (void)didReceiveDeepLink:(GPPDeepLink *)deepLink {
    // An example to handle the deep link data.
    UIAlertView *alert = [[UIAlertView alloc]
                          initWithTitle:@"Deep-link Data"
                          message:[deepLink deepLinkID]
                          delegate:nil
                          cancelButtonTitle:@"OK"
                          otherButtonTitles:nil];
    [alert show];
}

とりあえずiOSのSafari経由で

xxxViewController.m

//適当なユーザーアクション
- (IBAction)shareButtonTapped:(id)sender {
    //useNativeSharebox
    //id<GPPShareBuilder> shareBuilder = [[GPPShare sharedInstance] nativeShareDialog];
    //not useNativeSharebox
    id<GPPShareBuilder> shareBuilder = [[GPPShare sharedInstance] shareDialog];
    [shareBuilder setPrefillText:@"hello world"];
    [shareBuilder setURLToShare:[NSURL URLWithString:@"http://apple.com"]];
    [shareBuilder open];
}

Safariが立ち上がってGoogle+認証通ってシェア投稿画面に。