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#import <UIKit/UIKit.h>
#import <GoogleSignIn/GoogleSignIn.h>


@interface ViewController : UIViewController <GIDSignInDelegate>

//デフォルトデザインのサインボタン
@property(weak, nonatomic) IBOutlet GIDSignInButton *signInButton;

//オリジナルのサインアウトボタン
- (IBAction)signOutButton:(UIButton *)sender;

//オリジナルのサインインボタン
- (IBAction)otiginalSignInButton:(UIButton *)sender;

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //Google認証初期化
    //[GIDSignIn sharedInstance].clientID = @"370894706694-8kknc502pnlncbrnoone3q8fhc55vq66.apps.googleusercontent.com";
    GIDSignIn *signInManager = [GIDSignIn sharedInstance];
    signInManager.clientID = @"370894706694-8kknc502pnlncbrnoone3q8fhc55vq66.apps.googleusercontent.com";
    signInManager.delegate = self;//コールバック設定
    // Do any additional setup after loading the view, typically from a nib.
}

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

//ログイン時のコールバック
- (void)signIn:(GIDSignIn *)signIn
didSignInForUser:(GIDGoogleUser *)user
     withError:(NSError *)error {
    if(error==nil){
    // Perform any operations on signed in user here.
    //self.statusField.text = @"Signed in user";
    NSLog(@"ログイン成功");
    NSLog(@"Id:%@",user.userID);
    GIDAuthentication *authData = user.authentication;
    NSLog(@"accessToken:%@",authData.accessToken);
    }else{
        NSLog(@"ログイン失敗:%@",error);
    }
}

//[[GIDSignIn sharedInstance] disconnect]用コールバック
- (void)signIn:(GIDSignIn *)signIn
didDisconnectWithUser:(GIDGoogleUser *)user
     withError:(NSError *)error {
    // Perform any operations when the user disconnects from app here.
    //self.statusField.text = @"Disconnected user";
}


- (IBAction)signOutButton:(UIButton *)sender {
    NSLog(@"ログアウト実行");
     //[[GIDSignIn sharedInstance] disconnect];
    [[GIDSignIn sharedInstance] signOut];
}

- (IBAction)otiginalSignInButton:(UIButton *)sender {
    NSLog(@"ログイン実行");
    [[GIDSignIn sharedInstance] signIn];
}

@end