경북대Android_남지연_1주차_과제

README.md

@@ -1 +1,26 @@
 # android-contacts
+
+
+## 연락처 만들기
+
+### 기능 요구 사항
+간단한 연락처를 구현한다.
+
+[1단계]
+- 연락처를 추가한다.
+- 이름과 전화번호는 필수 값이다.
+- 입력하지 않으면 토스트 메시지를 보여준다.
+- 전화번호 입력은 숫자만 가능하다.
+- 더보기를 눌러 입력 폼을 확장할 수 있다.
+- 생일, 성별, 메모 입력 폼이 등장한다.
+- 성별을 둘 중 하나를 선택할 수 있다.
+- 저장 버튼을 누르면 '저장이 완료 되었습니다' 라는 토스트 메시지를 보여준다.
+- 취소 버튼을 누르면 '취소 되었습니다' 라는 토스트 메시지를 보여준다.
+
+[2단계]
+- 연락처 등록 화면을 구현한다.
+- 연락처를 저장하면 목록에 추가된다.
+- 저장된 연락처가 많을 경우 목록은 스크롤 되어야 한다.
+- 추가된 연락처를 선택하여 상세 화면을 볼 수 있다.
+- 연락처 작성 중 뒤로가기 버튼을 누르면 확인 팝업이 나타난다.
+- 추가된 연락처는 앱을 다시 실행하면 유지되지 않는다.

app/src/main/AndroidManifest.xml

@@ -12,15 +12,24 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Contacts"
         tools:targetApi="31">
+
+        <activity
+            android:name=".AddContactActivity"
+            android:exported="false" />
+
+        <activity
+            android:name=".DetailActivity"
+            android:exported="false" />
+
         <activity
             android:name=".MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
     </application>
 
 </manifest>

app/src/main/java/campus/tech/kakao/contacts/AppContactActivity.kt

@@ -0,0 +1,151 @@
+package campus.tech.kakao.contacts
+
+import android.app.AlertDialog
+import android.app.DatePickerDialog
+import android.content.Intent
+import android.os.Bundle
+import android.widget.EditText
+import android.widget.LinearLayout
+import android.widget.RadioButton
+import android.widget.TextView
+import android.widget.Toast
+import androidx.activity.OnBackPressedCallback
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.isVisible
+import java.text.SimpleDateFormat
+import java.util.*
+
+class AppContactActivity : AppCompatActivity() {
+
+    private lateinit var etName: EditText
+    private lateinit var etPhone: EditText
+    private lateinit var etEmail: EditText
+    private lateinit var etBirthdate: EditText
+    private lateinit var rbFemale: RadioButton
+    private lateinit var rbMale: RadioButton
+    private lateinit var etNotes: EditText
+    private lateinit var btnMore: TextView
+    private lateinit var moreForm: LinearLayout
+    private lateinit var btnCancel: TextView
+    private lateinit var btnSave: TextView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_app_contact)
+
+        etName = findViewById(R.id.et_name)
+        etPhone = findViewById(R.id.et_phone)
+        etEmail = findViewById(R.id.et_email)
+        etBirthdate = findViewById(R.id.et_birthdate)
+        rbFemale = findViewById(R.id.rb_female)
+        rbMale = findViewById(R.id.rb_male)
+        etNotes = findViewById(R.id.et_notes)
+        btnMore = findViewById(R.id.btn_more)
+        moreForm = findViewById(R.id.more_form)
+        btnCancel = findViewById(R.id.btn_cancel)
+        btnSave = findViewById(R.id.btn_save)
+
+        etBirthdate.setOnClickListener {
+            showDatePickerDialog(etBirthdate)
+        }
+
+        btnMore.setOnClickListener {
+            moreForm.isVisible = true
+            btnMore.isVisible = false
+        }
+
+        btnCancel.setOnClickListener {
+            Toast.makeText(this, "취소 되었습니다", Toast.LENGTH_SHORT).show()
+        }
+
+        btnSave.setOnClickListener {
+            val name = etName.text.toString()
+            val phone = etPhone.text.toString()
+
+            if (name.isEmpty()) {
+                Toast.makeText(this, "이름은 필수 값입니다.", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+            if (phone.isEmpty()) {
+                Toast.makeText(this, "전화 번호는 필수 값입니다.", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+            if (!phone.matches(Regex("\\d+"))) {
+                Toast.makeText(this, "전화번호는 숫자만 입력 가능합니다", Toast.LENGTH_SHORT).show()
+                return@setOnClickListener
+            }
+
+            val email = etEmail.text.toString()
+            val birthdate = etBirthdate.text.toString()
+            val gender = if (rbFemale.isChecked) "여성" else if (rbMale.isChecked) "남성" else ""
+            val notes = etNotes.text.toString()
+
+            val intent = Intent().apply {
+                putExtra("name", name)
+                putExtra("phone", phone)
+                putExtra("email", email)
+                putExtra("birthdate", birthdate)
+                putExtra("gender", gender)
+                putExtra("notes", notes)
+            }
+            setResult(RESULT_OK, intent)
+            Toast.makeText(this, "저장이 완료 되었습니다", Toast.LENGTH_SHORT).show()
+            finish()
+        }
+
+        onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {
+            override fun handleOnBackPressed() {
+                if (isFormFilled()) {
+                    showExitConfirmationDialog()
+                } else {
+                    finish()
+                }
+            }
+        })
+    }
+
+    private fun isFormFilled(): Boolean {
+        return etName.text.isNotEmpty() ||
+                etPhone.text.isNotEmpty() ||
+                etEmail.text.isNotEmpty() ||
+                etBirthdate.text.isNotEmpty() ||
+                rbFemale.isChecked ||
+                rbMale.isChecked ||
+                etNotes.text.isNotEmpty()
+    }
+
+    private fun showExitConfirmationDialog() {
+        val builder = AlertDialog.Builder(this)
+        builder.setMessage("작성중인 내용이 있습니다. 정말 나가시겠습니까?")
+            .setCancelable(false)
+            .setPositiveButton("네") { dialog, id ->
+                finish()
+            }
+            .setNegativeButton("아니요") { dialog, id ->
+                dialog.dismiss()
+            }
+        val alert = builder.create()
+        alert.show()
+    }
+
+    private fun showDatePickerDialog(editText: EditText) {
+        val calendar = Calendar.getInstance()
+        val year = calendar.get(Calendar.YEAR)
+        val month = calendar.get(Calendar.MONTH)
+        val day = calendar.get(Calendar.DAY_OF_MONTH)
+
+        val datePickerDialog = DatePickerDialog(
+            this,
+            { _, selectedYear, selectedMonth, selectedDay ->
+                val dateFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
+                val selectedDate = Calendar.getInstance()
+                selectedDate.set(selectedYear, selectedMonth, selectedDay)
+                editText.setText(dateFormat.format(selectedDate.time))
+            },
+            year,
+            month,
+            day
+        )
+        datePickerDialog.show()
+    }
+}

app/src/main/java/campus/tech/kakao/contacts/DetailActivity.kt

@@ -0,0 +1,45 @@
+package campus.tech.kakao.contacts
+
+import android.os.Bundle
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+
+class DetailActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_detail)
+
+        val name = intent.getStringExtra("name") ?: ""
+        val phone = intent.getStringExtra("phone") ?: ""
+        val email = intent.getStringExtra("email") ?: ""
+        val birthdate = intent.getStringExtra("birthdate") ?: ""
+        val gender = intent.getStringExtra("gender") ?: ""
+        val notes = intent.getStringExtra("notes") ?: ""
+
+        if (name.isNotEmpty()) {
+            findViewById<TextView>(R.id.name_label).text = "이름"
+            findViewById<TextView>(R.id.name_value).text = name
+        }
+        if (phone.isNotEmpty()) {
+            findViewById<TextView>(R.id.phone_label).text = "전화번호"
+            findViewById<TextView>(R.id.phone_value).text = phone
+        }
+        if (email.isNotEmpty()) {
+            findViewById<TextView>(R.id.email_label).text = "메일"
+            findViewById<TextView>(R.id.email_value).text = email
+        }
+        if (birthdate.isNotEmpty()) {
+            findViewById<TextView>(R.id.birthdate_label).text = "생일"
+            findViewById<TextView>(R.id.birthdate_value).text = birthdate
+        }
+        if (gender.isNotEmpty()) {
+            findViewById<TextView>(R.id.gender_label).text = "성별"
+            findViewById<TextView>(R.id.gender_value).text = gender
+        }
+        if (notes.isNotEmpty()) {
+            findViewById<TextView>(R.id.notes_label).text = "메모"
+            findViewById<TextView>(R.id.notes_value).text = notes
+        }
+    }
+}

app/src/main/java/campus/tech/kakao/contacts/MainActivity.kt

@@ -1,11 +1,71 @@
 package campus.tech.kakao.contacts
 
+import android.content.Intent
 import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
+import androidx.cardview.widget.CardView
 
 class MainActivity : AppCompatActivity() {
+
+    private lateinit var contactList: LinearLayout
+    private lateinit var emptyText: TextView
+    private lateinit var addContactLauncher: ActivityResultLauncher<Intent>
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+
+        contactList = findViewById(R.id.contact_list)
+        emptyText = findViewById(R.id.empty_text)
+        val fab = findViewById<TextView>(R.id.fab)
+
+        // ActivityResultLauncher 초기화
+        addContactLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+            if (result.resultCode == RESULT_OK) {
+                val data = result.data
+                if (data != null) {
+                    val name = data.getStringExtra("name") ?: ""
+                    val phone = data.getStringExtra("phone") ?: ""
+                    val email = data.getStringExtra("email") ?: ""
+                    val birthdate = data.getStringExtra("birthdate") ?: ""
+                    val gender = data.getStringExtra("gender") ?: ""
+                    val notes = data.getStringExtra("notes") ?: ""
+
+                    // 연락처가 추가되면 가운데 텍스트를 숨김
+                    emptyText.visibility = View.GONE
+
+                    val contactView = LayoutInflater.from(this).inflate(R.layout.contact_item, contactList, false) as CardView
+
+                    contactView.findViewById<TextView>(R.id.contact_name).text = name
+                    contactView.findViewById<TextView>(R.id.contact_icon).text = name.first().toString()
+
+                    contactView.setOnClickListener {
+                        val detailIntent = Intent(this@MainActivity, DetailActivity::class.java).apply {
+                            putExtra("name", name)
+                            putExtra("phone", phone)
+                            putExtra("email", email)
+                            putExtra("birthdate", birthdate)
+                            putExtra("gender", gender)
+                            putExtra("notes", notes)
+                        }
+                        startActivity(detailIntent)
+                    }
+
+                    contactList.addView(contactView)
+                }
+            }
+        }
+
+        // '+' 버튼 클릭 이벤트 처리
+        fab.setOnClickListener {
+            val intent = Intent(this, SecondActivity::class.java)
+            addContactLauncher.launch(intent)
+        }
     }
 }

app/src/main/res/drawable/circle_background.xml

@@ -0,0 +1,4 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/holo_orange_light"/>
+    <corners android:radius="20dp"/>
+</shape>

app/src/main/res/drawable/rounded_orange_button.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/holo_orange_light"/>
+    <corners android:radius="28dp"/>
+</shape>