TwitterKit 💢

example.swift

// To debug, sign out from this app.
if let session = Twitter.sharedInstance().sessionStore.session() {
    Twitter.sharedInstance().sessionStore.logOutUserID(session.userID)
}

if let session = Twitter.sharedInstance().sessionStore.session() {
    debugPrint("Session: \(String(describing: session))")
    debugPrint("Existing: \(Twitter.sharedInstance().sessionStore.existingUserSessions())")
    tweet()
} else {
    // WORKAROUND: Twitterアプリがインストールされていない場合、TwitterKitがこのUINavigationControllerを勝手に閉じてしまう
    // そのため勝手に閉じられてもいい透過のUIViewControllerをモーダルしておく
    let dummy = UIViewController()
    dummy.view.backgroundColor = UIColor.clear
    dummy.modalPresentationStyle = .overCurrentContext
    present(dummy, animated: true, completion: { [unowned self] in
        Twitter.sharedInstance().logIn(with: self.navigationController, completion: { [weak self] session, error in
            guard error == nil else {
                debugPrint("Error: \(String(describing: error))")
                dummy.dismiss(animated: false, completion: nil)
                return
            }
            guard let session = session else {
                // - Twitterアプリがインストールされていない場合
                // - Twitterアプリから「キャンセル」で戻ってきた場合
                debugPrint("Session is nil.")
                dummy.dismiss(animated: false, completion: nil)
                let alert = UIAlertController(title: "Twitter Error",
                                              message: nil,
                                              preferredStyle: .alert)
                alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
                self?.present(alert, animated: true, completion: nil)
                return
            }

            dummy.dismiss(animated: false, completion: { [weak self] in
                self?.tweet()
            })
        })
    })
}

func tweet() {
    let message = "test"
    let composer = TWTRComposer()
    composer.setText(message)
    composer.show(from: self) { result in
        debugPrint("result: \(result.rawValue)")
        switch result {
        case .done:
            break
        case .cancelled:
            break
        }
    }
}