如何使用Objective-C从设备上安装的本机Twitter应用程序获取用户详细信息

Question

I have implemented twitter login in my iOS app using FSHTwitterEngine. I have also implemented functionality to check for system account using ACAccountStore.

Before user log in through both, on button press, How can I check if user has already logged in to twitter native app, and if so get the user data from over there, then come back to my app. (Same as FBSDKLoginBehaviorNative for facebook.)

  BOOL twInstalled = [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"twitter://"]];

  if (twInstalled)
  {
        // here I want to check for the user if he/she is logged in and get data.
  }
  else
  {
    [self twitterLoginWithsystemAccount]

    // or

    [self twitterLoginWithFHSTwitterEngine];
  }

Answer 1

ACAccountStore *accountStore = [[ACAccountStore alloc] init];
ACAccountType *accountType = [accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierTwitter];
NSArray *accounts = [accountStore accountsWithAccountType:accountType];
ACAccount *twitterAccount = [accounts lastObject];

From above code you can check if user have twitter accounts in his phone using ACAccountStore.