ios 실전 앱 만들기 : 어떤 앱이 만들어 질까

ios 실전 앱 만들기 : 어떤 앱이 만들어 질까

logincontroller.swift

//  Copyright © 2018년 MacBookPro. All rights reserved.

// t\색상68cd4c

import UIKit

import Firebase

class LoginController: UIViewController,UIPickerViewDelegate,UIPickerViewDataSource {

    

    //사진 선택했는지 체크

    var picCheck = false

    

    //피커뷰 데이터

    let gender = ["남자","여자"]

    var age:[String] = []

    

    var messagesController: MessageController?

    

    //피커뷰 객체

    let genderPickerView :UIPickerView = {

        let pick = UIPickerView()

        pick.tag = 1

        return pick

    }()

    //나이 피커뷰 객체

    let agePickerView :UIPickerView = {

        let pick = UIPickerView()

        pick.tag = 2

        return pick

    }()

    

    //피커뷰 상속 메서드

    func numberOfComponents(in pickerView: UIPickerView) -> Int {

        return 1

    }

    //피커뷰 row 개수

    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {

        var countrows : Int = age.count

        if (pickerView == genderPickerView){

            countrows = gender.count

        }

        return countrows

    }

    

    //피커뷰 제목

    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {

        if pickerView == genderPickerView {

            let titleRow = gender[row]

            return titleRow

        } else if pickerView == agePickerView {

            let titleRow = age[row]

            return titleRow

        }

        return ""

    }

    //피커뷰를 선택했을 때

    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {

        if pickerView == genderPickerView {

            let titleRow = gender[row]

            genderSegmentControl.text = titleRow

            genderSegmentControl.resignFirstResponder()

        } else if pickerView == agePickerView {

            let titleRow = age[row]

            ageTextField.text = titleRow

            ageTextField.resignFirstResponder()

        }

    }

    

    //컨테이너 뷰

    let inputsContainerView: UIView = {

        let view = UIView()

        view.backgroundColor = UIColor.black

        view.translatesAutoresizingMaskIntoConstraints = false

        view.layer.cornerRadius = 5

        view.layer.masksToBounds = true

        return view

    }()

    

    //로그인 버튼

    lazy var loginRegisterButton: UIButton = {

        let button = UIButton(type: .system)

        button.backgroundColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        button.setTitle("가입ㄱㄱ", for: UIControlState())

        button.translatesAutoresizingMaskIntoConstraints = false

        button.setTitleColor(.black, for: UIControlState())

        button.titleLabel?.font = UIFont(name: "SDMiSaeng", size: 30)

        button.layer.cornerRadius = 5

        button.layer.masksToBounds = true

        button.addTarget(self, action: #selector(handleLoginRegister), for: .touchUpInside)

        return button

    }()

    

    @objc func handleLoginRegister(){

        if loginRegisterSegmentedControl.selectedSegmentIndex == 0 {

            handleLogin()

        }else{

            handleRegister()

        }

    }

    

    //로그인 버튼 액션

    func handleLogin(){

        guard let email = emailTextField.text, let password = passwordTextField.text else {

            print("값이 없거나 잘못된 형식")

            return

        }

        

        Auth.auth().signIn(withEmail: email, password: password) { (user, error) in

            if let error = error {

                print(error)

                return

            }

            //로그인 할때 네비게이션 바 데이터 변경 함수 호출

            self.messagesController?.fetchUserAndSetupNavBarTitle()

            //로그인 성공시 로그인창 내려주기

            self.dismiss(animated: true, completion: nil)

        }

        

    }

    

    //닉네임 텍스트 필드

    let nameTextField: UITextField = {

        let tf = UITextField()

        tf.placeholder = "어렸을때 별명ㅋㅋ"

        if let placeholder = tf.placeholder {

            tf.attributedPlaceholder = NSAttributedString(string:placeholder,

                                                                     attributes: [NSAttributedStringKey.foregroundColor: UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)])

        }

        tf.font = UIFont(name: "SDMiSaeng", size: 25)

        tf.textColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.translatesAutoresizingMaskIntoConstraints = false

        return tf

    }()

    //닉네임 구분선

    let nameSeparatorView: UIView = {

        let view = UIView()

        view.backgroundColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        view.translatesAutoresizingMaskIntoConstraints = false

        return view

    }()

    

    //이메일 텍스트 필드

    let emailTextField: UITextField = {

        let tf = UITextField()

        tf.placeholder = "비번 찾을때 이메일"

        if let placeholder = tf.placeholder {

            tf.attributedPlaceholder = NSAttributedString(string:placeholder,

                                                          attributes: [NSAttributedStringKey.foregroundColor: UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)])

        }

        tf.font = UIFont(name: "SDMiSaeng", size: 25)

        tf.textColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.translatesAutoresizingMaskIntoConstraints = false

        return tf

    }()

    //이메일 구분선

    let emailSeparatorView: UIView = {

        let view = UIView()

        view.backgroundColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        view.translatesAutoresizingMaskIntoConstraints = false

        return view

    }()

    //패스워드 텍스트 필드

    let passwordTextField: UITextField = {

        let tf = UITextField()

        tf.placeholder = "비밀번호는 여섯자리 이상"

        if let placeholder = tf.placeholder {

            tf.attributedPlaceholder = NSAttributedString(string:placeholder,

                                                          attributes: [NSAttributedStringKey.foregroundColor: UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)])

        }

        tf.font = UIFont(name: "SDMiSaeng", size: 25)

        tf.textColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.translatesAutoresizingMaskIntoConstraints = false

        tf.isSecureTextEntry = true

        return tf

    }()

    

    //패스워드 구분선

    let passwordSeparatorView: UIView = {

        let view = UIView()

        view.backgroundColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        view.translatesAutoresizingMaskIntoConstraints = false

        return view

    }()

    

    //성별

    lazy var genderSegmentControl: UITextField = {

        let tf = UITextField()

        tf.placeholder = "남자 여자?"

        if let placeholder = tf.placeholder {

            tf.attributedPlaceholder = NSAttributedString(string:placeholder,

                                                          attributes: [NSAttributedStringKey.foregroundColor: UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)])

        }

        tf.font = UIFont(name: "SDMiSaeng", size: 25)

        tf.textColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.translatesAutoresizingMaskIntoConstraints = false

        return tf

        

    }()

    

    //성별 구분선

    let genderSeperatorView:UIView = {

        let view = UIView()

        view.backgroundColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        view.translatesAutoresizingMaskIntoConstraints = false

        return view

    }()

    

    

    //나이

    lazy var ageTextField:UITextField = {

        let tf = UITextField()

        tf.placeholder = "나이"

        if let placeholder = tf.placeholder {

            tf.attributedPlaceholder = NSAttributedString(string:placeholder,

                                                          attributes: [NSAttributedStringKey.foregroundColor: UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)])

        }

        tf.font = UIFont(name: "SDMiSaeng", size: 25)

        tf.textColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        tf.translatesAutoresizingMaskIntoConstraints = false

        return tf

    }()

    

    

    //프로필 이미지

    lazy var profileImageView: UIImageView = {

        let imageView = UIImageView()

        imageView.image = UIImage(named: "main2")

        imageView.translatesAutoresizingMaskIntoConstraints = false

        imageView.contentMode = .scaleAspectFill

        //클릭시 이벤트 등록

        imageView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(handleSelectProfileImageView)))

        imageView.isUserInteractionEnabled = true

        return imageView

    }()

    

    lazy var loginRegisterSegmentedControl:UISegmentedControl = {

        

        let sc = UISegmentedControl(items: ["로그인","가입ㄱㄱ"])

        sc.translatesAutoresizingMaskIntoConstraints = false

        let font = UIFont(name: "SDMiSaeng", size: 20)

        sc.setTitleTextAttributes([NSAttributedStringKey.font: font as Any],

                                                for: .normal)

        sc.tintColor = UIColor(red:0.41, green:0.80, blue:0.30, alpha:1.0)

        sc.selectedSegmentIndex = 1

        sc.addTarget(self, action: #selector(handleLoginRegisterChange), for: .valueChanged)

        return sc

    }()

    

    //로그인 등록 세그먼트

    @objc func handleLoginRegisterChange(){

        let title = loginRegisterSegmentedControl.titleForSegment(at: loginRegisterSegmentedControl.selectedSegmentIndex)

        loginRegisterButton.setTitle(title, for: UIControlState())

        

        let containerHeight =  loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? 100 : 200

        inputsContainerViewHeightAnchor?.constant = CGFloat(containerHeight)

        

        //이름 필드 높이

        nameTextFieldHeightAnchor?.isActive = false

        nameTextFieldHeightAnchor = loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? nameTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 0) : nameTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        nameTextFieldHeightAnchor?.isActive = true

        

        //이메일 필드 높이

        emailTextFieldHeightAnchor?.isActive = false

        emailTextFieldHeightAnchor = loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? emailTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/2) : emailTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        emailTextFieldHeightAnchor?.isActive = true

        

        //비밀번호 필드 높이

        passwordTextFieldHeightAnchor?.isActive = false

        passwordTextFieldHeightAnchor = loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? passwordTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/2) : passwordTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        passwordTextFieldHeightAnchor?.isActive = true

        

        //성별 높이

        genderSegmentControlHeightAnchor?.isActive = false

        genderSegmentControlHeightAnchor = loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? genderSegmentControl.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 0) : genderSegmentControl.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        genderSegmentControlHeightAnchor?.isActive = true

        

        //나이 높이

        ageTextFieldHeightAnchor?.isActive = false

        ageTextFieldHeightAnchor = loginRegisterSegmentedControl.selectedSegmentIndex  == 0 ? ageTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 0) : ageTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        ageTextFieldHeightAnchor?.isActive = true

        

    }

    

    

    

    //진입점

    override func viewDidLoad() {

        super.viewDidLoad()

        

        //나이 피커뷰에 데이터 넣어주기

        for i in 8...99{

            self.age.append("\(i)")

        }

        

        //바깥탭 -> 키보드 숨기기

        self.hideKeyboard()

        

        //피커뷰 델리게이트

        genderPickerView.delegate = self

        genderPickerView.dataSource = self

        agePickerView.delegate = self

        agePickerView.dataSource = self

        

        view.backgroundColor = .black

        

        view.addSubview(inputsContainerView)

        view.addSubview(loginRegisterButton)

        view.addSubview(profileImageView)

        view.addSubview(loginRegisterSegmentedControl)

        

        

        //입력 객체

        setupInputsContainerView()

        //로그인버튼 객체

        setupLoginRegisterButton()

        //이미지뷰 객체

        setupProfileImageView()

        //로그인 세그먼트 컨트롤

        setupLoginRegisterSegmentedControl()

        

    }

    

    //로그인등록 버튼 세그먼트 제약조건

    func setupLoginRegisterSegmentedControl(){

        loginRegisterSegmentedControl.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true

        loginRegisterSegmentedControl.bottomAnchor.constraint(equalTo: inputsContainerView.topAnchor, constant: -15).isActive = true

        loginRegisterSegmentedControl.heightAnchor.constraint(equalToConstant: 30).isActive = true

        loginRegisterSegmentedControl.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        

    }

    

    //높이 제약조건

    var inputsContainerViewHeightAnchor: NSLayoutConstraint?

    var nameTextFieldHeightAnchor: NSLayoutConstraint?

    var emailTextFieldHeightAnchor: NSLayoutConstraint?

    var passwordTextFieldHeightAnchor: NSLayoutConstraint?

    var genderSegmentControlHeightAnchor: NSLayoutConstraint?

    var ageTextFieldHeightAnchor: NSLayoutConstraint?

    

    //컨테이너 뷰 제약조건 설정

    func setupInputsContainerView(){

        //컨테이너 뷰 제약조건

        inputsContainerView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true

        inputsContainerView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true

        inputsContainerView.widthAnchor.constraint(equalTo:view.widthAnchor,constant:-24).isActive = true

        

        inputsContainerViewHeightAnchor = inputsContainerView.heightAnchor.constraint(equalToConstant: 200)

        inputsContainerViewHeightAnchor?.isActive = true

        

        

        //컨테이너 뷰 안에 뷰객체 넣기

        inputsContainerView.addSubview(nameTextField)

        inputsContainerView.addSubview(nameSeparatorView)

        inputsContainerView.addSubview(emailTextField)

        inputsContainerView.addSubview(emailSeparatorView)

        inputsContainerView.addSubview(passwordTextField)

        

        inputsContainerView.addSubview(passwordSeparatorView)

        inputsContainerView.addSubview(genderSegmentControl)

        genderSegmentControl.inputView = genderPickerView

        inputsContainerView.addSubview(genderSeperatorView)

        inputsContainerView.addSubview(ageTextField)

        ageTextField.inputView = agePickerView

        

        //뷰객체 제약조건 설정

        //이름

        nameTextField.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor, constant: 12).isActive = true

        nameTextField.topAnchor.constraint(equalTo: inputsContainerView.topAnchor, constant: 0).isActive = true

        nameTextField.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor, constant: 0).isActive = true

        

        nameTextFieldHeightAnchor = nameTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        nameTextFieldHeightAnchor?.isActive = true

        

        //이름 구분선

        nameSeparatorView.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor).isActive = true

        nameSeparatorView.topAnchor.constraint(equalTo: nameTextField.bottomAnchor).isActive = true

        nameSeparatorView.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        nameSeparatorView.heightAnchor.constraint(equalToConstant: 1).isActive = true

        

        //이메일

        emailTextField.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor, constant: 12).isActive = true

        emailTextField.topAnchor.constraint(equalTo: nameTextField.bottomAnchor, constant: 0).isActive = true

        emailTextField.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor, constant: 0).isActive = true

        emailTextFieldHeightAnchor = emailTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        emailTextFieldHeightAnchor?.isActive = true

        

        //이메일 구분선

        emailSeparatorView.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor).isActive = true

        emailSeparatorView.topAnchor.constraint(equalTo: emailTextField.bottomAnchor).isActive = true

        emailSeparatorView.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        emailSeparatorView.heightAnchor.constraint(equalToConstant: 1).isActive = true

        

        //비밀번호

        passwordTextField.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor, constant: 12).isActive = true

        passwordTextField.topAnchor.constraint(equalTo: emailTextField.bottomAnchor, constant: 0).isActive = true

        passwordTextField.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor, constant: 0).isActive = true

        passwordTextFieldHeightAnchor = passwordTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        passwordTextFieldHeightAnchor?.isActive = true

        

        //비밀번호 구분선

        passwordSeparatorView.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor).isActive = true

        passwordSeparatorView.topAnchor.constraint(equalTo: passwordTextField.bottomAnchor).isActive = true

        passwordSeparatorView.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        passwordSeparatorView.heightAnchor.constraint(equalToConstant: 1).isActive = true

        

        //성별

        genderSegmentControl.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor, constant: 12).isActive = true

        genderSegmentControl.topAnchor.constraint(equalTo: passwordTextField.bottomAnchor, constant: 0).isActive = true

        genderSegmentControl.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor, constant: 0).isActive = true

        genderSegmentControlHeightAnchor = genderSegmentControl.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        genderSegmentControlHeightAnchor?.isActive = true

        

        //성별 구분선

        genderSeperatorView.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor).isActive = true

        genderSeperatorView.topAnchor.constraint(equalTo: genderSegmentControl.bottomAnchor).isActive = true

        genderSeperatorView.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        genderSeperatorView.heightAnchor.constraint(equalToConstant: 1).isActive = true

        

        //나이

        ageTextField.leftAnchor.constraint(equalTo: inputsContainerView.leftAnchor, constant: 12).isActive = true

        ageTextField.topAnchor.constraint(equalTo: genderSegmentControl.bottomAnchor, constant: 0).isActive = true

        ageTextField.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor, constant: 0).isActive = true

        ageTextFieldHeightAnchor = ageTextField.heightAnchor.constraint(equalTo: inputsContainerView.heightAnchor, multiplier: 1/5)

        ageTextFieldHeightAnchor?.isActive = true

        

    }

    

    //로그인버튼 제약 조건 설정

    func setupLoginRegisterButton(){

        loginRegisterButton.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true

        loginRegisterButton.topAnchor.constraint(equalTo: inputsContainerView.bottomAnchor, constant: 12).isActive = true

        loginRegisterButton.widthAnchor.constraint(equalTo: inputsContainerView.widthAnchor).isActive = true

        loginRegisterButton.heightAnchor.constraint(equalToConstant: 30).isActive = true

    }

    

    //프로필 이미지 제약 조건 설정

    func setupProfileImageView(){

        profileImageView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true

        profileImageView.bottomAnchor.constraint(equalTo: loginRegisterSegmentedControl.topAnchor, constant: -75).isActive = true

        profileImageView.widthAnchor.constraint(equalToConstant: 60).isActive = true

        profileImageView.heightAnchor.constraint(equalToConstant: 60).isActive = true

    }

    

    

}

extension UIColor {

    

    convenience init(r: CGFloat, g: CGFloat, b: CGFloat) {

        self.init(red: r/255, green: g/255, blue: b/255, alpha: 1)

    }

}

//바탕화면 텝 했을 때 키보드 숨기기

extension UIViewController

{

    func hideKeyboard()

    {

        let tap: UITapGestureRecognizer = UITapGestureRecognizer(

            target: self,

            action: #selector(UIViewController.dismissKeyboard))

        

        view.addGestureRecognizer(tap)

    }

    

    @objc func dismissKeyboard()

    {

        view.endEditing(true)

    }

}

LoginController+handlers.swift

//  Copyright © 2018년 MacBookPro. All rights reserved.

//

import UIKit

import Firebase

extension LoginController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    

    //등록 버튼 액션

    func handleRegister(){

        

        if(picCheck){

            //유효성 검사

            guard let email = emailTextField.text, let password = passwordTextField.text, let name = nameTextField.text,let gender = genderSegmentControl.text, let age = ageTextField.text else {

                

                

                //유효성 검사 해주기

                print("값이 없거나 잘못된 형식")

                return

            }

            //파이어베이스 가입

            Auth.auth().createUser(withEmail: email, password: password) { (user, error) in

                //에러 발생

                if let error = error{

                    if let errCode = AuthErrorCode(rawValue: error._code) {

                        switch errCode {

                        case .invalidEmail:

                            let alert = UIAlertController(title: "경고 ", message:"이메일 형식이 아닌것 같음..", preferredStyle: UIAlertControllerStyle.alert)

                            alert.addAction(UIAlertAction(title: "ㅇㅇ", style: UIAlertActionStyle.default, handler: nil))

                            self.present(alert, animated: true, completion: nil)

                        case .wrongPassword :

                            let alert = UIAlertController(title: "경고 ", message:"비밀번호 확인 ㄱㄱ", preferredStyle: UIAlertControllerStyle.alert)

                            alert.addAction(UIAlertAction(title: "ㅇㅇ", style: UIAlertActionStyle.default, handler: nil))

                            self.present(alert, animated: true, completion: nil)

                        case .accountExistsWithDifferentCredential :

                            let alert = UIAlertController(title: "경고 ", message:"이메일을 확인좀..", preferredStyle: UIAlertControllerStyle.alert)

                            alert.addAction(UIAlertAction(title: "ㅇㅇ", style: UIAlertActionStyle.default, handler: nil))

                            self.present(alert, animated: true, completion: nil)

                        case .userNotFound :

                            let alert = UIAlertController(title: "경고 ", message:"존재하지 않는 이메일이여", preferredStyle: UIAlertControllerStyle.alert)

                            alert.addAction(UIAlertAction(title: "ㅇㅇ", style: UIAlertActionStyle.default, handler: nil))

                            self.present(alert, animated: true, completion: nil)

                        default:

                            let alert = UIAlertController(title: "경고 ", message:"빈칸없는지 다시바바ㅠㅠ", preferredStyle: UIAlertControllerStyle.alert)

                            alert.addAction(UIAlertAction(title: "ㅇ", style: UIAlertActionStyle.default, handler: nil))

                            self.present(alert, animated: true, completion: nil)

                        }

                    }

                    return

                }

                //가입후 uid  넘겨준다. uid 가 nil이면 return

                guard let uid = user?.uid else {

                    return

                }

                

                //유저 가입 성공후

                //유일한 스트링 값

                let imageName = NSUUID().uuidString

                //firebase 저장소 위치 가져오기

                let storageRef = Storage.storage().reference().child("profile_images").child("\(imageName).jpg")

                //image 파일 변환

                

                //더 안전하게

                if let profileImage = self.profileImageView.image, let uploadData = UIImageJPEGRepresentation(profileImage, 0.1){

                    

                    //업로드

                    storageRef.putData(uploadData, metadata: nil, completion: { (metadata, error) in

                        if let error = error {

                            print(error)

                            return

                        }

                        //이미지가 저장된 url 가져온 후 users db에 삽입

                        if let profileImageUrl = metadata?.downloadURL()?.absoluteString {

                            

                            let values = ["name": name, "email": email, "profileImageUrl": profileImageUrl,"gender":gender,"age":age]

                            //최종 저장 함수 호출(데이터 넘겨줌)

                            self.registerUserIntoDatabaseWithUID(uid, values: values as [String : AnyObject])

                        }

                    })

                }

            }

        }else{

            

            let alert = UIAlertController(title: "경고 ", message:"맨위에 바바 사진넣어야됨...", preferredStyle: UIAlertControllerStyle.alert)

            alert.addAction(UIAlertAction(title: "ㅇㅇ", style: UIAlertActionStyle.default, handler: nil))

            self.present(alert, animated: true, completion: nil)

        }

        

        

    }

    //최종적으로 유저 저장

    fileprivate func registerUserIntoDatabaseWithUID(_ uid: String, values: [String: AnyObject]) {

        let ref = Database.database().reference()

        let usersReference = ref.child("users").child(uid)

        //최종 저장

        usersReference.updateChildValues(values, withCompletionBlock: { (err, ref) in

            

            if let err = err {

                print(err)

                return

            }

            

            let user = User(dic:values)

            //등록 할때 메시지 컨트롤러에 있는 setupnavbar 함수 호출

            self.messagesController?.setupNavBarWithUser(user: user)

            self.dismiss(animated: true, completion: nil)

        })

        

        picCheck = false

    }

    

    

    //프로필 이미지 클릭했을 때 실행되는 이벤트 함수

    @objc func handleSelectProfileImageView(){

        

        let picker = UIImagePickerController()

        picker.delegate = self

        picker.allowsEditing = true

        

        present(picker, animated: true, completion: nil)

    }

    

    

    //이미지 피커 선택 완료

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

        var selectedImageFromPicker: UIImage?

        

        if let editedImage = info["UIImagePickerControllerEditedImage"] as? UIImage {

            selectedImageFromPicker = editedImage

        } else if let originalImage = info["UIImagePickerControllerOriginalImage"] as? UIImage {

            

            selectedImageFromPicker = originalImage

        }

        

        if let selectedImage = selectedImageFromPicker {

            profileImageView.image = selectedImage

            picCheck = true

        }

        

        dismiss(animated: true, completion: nil)

    }

    

    

    //이미지 피커 취소

    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {

        dismiss(animated: true, completion: nil)

    }

    

}

mainviewcontroller.swift

//

//  MainViewController.swift

//  DatingApp

//

//  Created by MacBookPro on 2018. 5. 15..

//  Copyright © 2018년 MacBookPro. All rights reserved.

//

import UIKit

import Firebase

class MainViewController: UIViewController {

    var ref: DatabaseReference!

    var mainViewController: MainViewController?

    //진입점

    override func viewDidLoad() {

        super.viewDidLoad()

        

        navigationItem.leftBarButtonItem = UIBarButtonItem(title: "로그아웃", style: .plain, target:self , action: #selector(handleLogout))

        

        

        //로그인or로그아웃 체크

        checkIfUserIsLoggedIn()

        

        

    }

    //로그인or로그아웃 체크 함수

    func checkIfUserIsLoggedIn(){

        //로그아웃 되었을 때 실행

        if Auth.auth().currentUser?.uid == nil{

            perform(#selector(handleLogout), with: nil, afterDelay: 0)

        }else{

            

            //로그인 되었으면 네비게이션 타이틀의 제목을 유저 이름으로 지정해준다.

            fetchUserAndSetupNavBarTitle()

            

        }

    }

    

    func fetchUserAndSetupNavBarTitle(){

        //로그인 되었으면 네비게이션 타이틀의 제목을 유저 이름으로 지정해준다.

        guard let uid = Auth.auth().currentUser?.uid else{

            //uid가

            return

        }

        ref = Database.database().reference()

        ref.child("users").child(uid).observeSingleEvent(of: .value, with: { (snapshot) in

            print("타이틀 바 표시 함수 호출 성공-")

            print(snapshot)

            if let dictionary = snapshot.value as? [String: AnyObject]{

                

                let user = User(dic: dictionary)

                self.setupNavBarWithUser(user: user)

                

            }

        }, withCancel: nil)

        

    }

    

    //네비게이션 타이틀 바 변경해주기

    func setupNavBarWithUser(user: User){

        print("사진있는 타이틀! 호출")

        let titleView = MyUIView()

        

        titleView.frame = CGRect(x:0, y:0, width: 100, height: 50)

        

        //이미지와 라벨을 담을 뷰 객체

        let containerView = UIView()

        containerView.translatesAutoresizingMaskIntoConstraints = false

        

        titleView.addSubview(containerView)

        

        //이미지 객체

        let profileImageView = UIImageView()

        profileImageView.translatesAutoresizingMaskIntoConstraints = false

        profileImageView.contentMode = .scaleAspectFill

        profileImageView.layer.cornerRadius = 20

        profileImageView.clipsToBounds = true

        

        if let profileImageUrl = user.profileImageUrl{

            profileImageView.loadImageUsingCacheWithUrlString(profileImageUrl)

        }

        containerView.addSubview(profileImageView)

        

        profileImageView.leftAnchor.constraint(equalTo: containerView.leftAnchor).isActive = true

        profileImageView.centerYAnchor.constraint(equalTo: containerView.centerYAnchor).isActive = true

        profileImageView.widthAnchor.constraint(equalToConstant: 35).isActive = true

        profileImageView.heightAnchor.constraint(equalToConstant: 35).isActive = true

        

        let nameLable = UILabel()

        containerView.addSubview(nameLable)

        

        nameLable.text = user.name

        nameLable.translatesAutoresizingMaskIntoConstraints = false

        nameLable.leftAnchor.constraint(equalTo: profileImageView.rightAnchor, constant: 8).isActive = true

        nameLable.centerYAnchor.constraint(equalTo: profileImageView.centerYAnchor).isActive = true

        nameLable.rightAnchor.constraint(equalTo: containerView.rightAnchor).isActive = true

        nameLable.heightAnchor.constraint(equalTo: profileImageView.heightAnchor).isActive = true

        //nameLable.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(showChatController)))

        

        containerView.centerXAnchor.constraint(equalTo: titleView.centerXAnchor).isActive = true

        containerView.centerYAnchor.constraint(equalTo: titleView.centerYAnchor).isActive = true

        self.navigationItem.titleView = titleView

        

    }

    

    //로그아웃 액션

    @objc func handleLogout(){

        

        do{

            try Auth.auth().signOut()

        } catch let logError{

            print(logError)

        }

        

        mainViewController?.fetchUserAndSetupNavBarTitle()

        

        let loginController = LoginController()

        

        present(loginController, animated: true, completion: nil)

    }

}

myuiview.swift

import UIKit

class MyUIView: UIView {

    

    override var intrinsicContentSize: CGSize {

        return UILayoutFittingExpandedSize

    }

    

}

Extensions.swift

//

//  Extensions.swift

//  DatingApp

//

// 

//  Copyright © 2018년 MacBookPro. All rights reserved.

//

import UIKit

let imageCache = NSCache<NSString, AnyObject>()

extension UIImageView{

    

    //새 메시지 보내기 테이블 뷰에서 호출하는 이미지 캐쉬 함수

    func loadImageUsingCacheWithUrlString(_ urlString: String) {

         self.image = nil

        

        //이미지 캐쉬가 있는지 확인 후 있으면 return

        if let cachedImage = imageCache.object(forKey: urlString as NSString) as? UIImage {

            self.image = cachedImage

            return

        }

        

        //이미지 캐치가 없으면 다운로드

        let url = URL(string: urlString)

        URLSession.shared.dataTask(with: url!, completionHandler: { (data, response, error) in

            

            //다운로드 중 에러발생, 종료

            if let error = error {

                print(error)

                return

            }

            

            DispatchQueue.main.async(execute: {

                //이미지 캐쉬에 넣기

                if let downloadedImage = UIImage(data: data!) {

                    imageCache.setObject(downloadedImage, forKey: urlString as NSString)

                    self.image = downloadedImage

                }

            })

            

        }).resume()

    }

    

}

//

//  User.swift

//  DatingApp

//

//  Copyright © 2018년 MacBookPro. All rights reserved.

//

import UIKit

class User: NSObject {

    

    var name : String?

    var email : String?

    var profileImageUrl: String?

    var id : String?

    init(dic:[String:Any]){

        self.name = dic["name"] as? String ?? ""

        self.email = dic["email"] as? String ?? ""

         self.profileImageUrl = dic["profileImageUrl"] as? String

        self.id = dic["id"] as? String

        

    }

    

}