전남대Android_오진우_1주차 과제

README.md

@@ -1 +1,33 @@
-# android-contacts
+# android-contacts - 간단한 연락처 구현(1주차)
+## 구현할 기능 목록
+
+**지정된 형식의 데이터를 입력하는 기능**
+- [x]  문자열을 입력할 수 있는 기능
+- [x]  숫자만 입력할 수 있는 기능
+- [x]  날짜 선택 기능
+- [x]  성별 선택 기능
+
+**더보기 기능**
+- [x]  더보기를 클릭하면 숨겨져 있던 입력 폼을 드러낼 수 있는 기능
+
+**저장 기능**
+- [x]  저장 버튼을 클릭하면 토스트 메세지를 출력
+- [x]  이름, 전화번호의 칸이 채워져 있지 않으면 저장이 되지 않으면 그에 맞는 토스트 메세지를 출력
+
+**취소 기능**
+- [x]  취소 버튼을 클릭하면 토스트 메세지를 출력
+
+## step2 구현할 기능 목록
+
+**연락처 추가 기능**
+- [x]  + 버튼을 통해 연락처를 추가하는 창을 띄우는 기능
+
+**연락처 출력 기능**
+- [x]  저장된 연락처들을 간단하게 이름만 띄워주는 기능
+- [x]  각 연락처를 클릭하면 상세 화면을 띄워주는 기능
+- [x]  상세화면에서 적힌 내용만 출력하는 기능
+
+**연락처 저장 기능**
+- [x]  저장 버튼을 누르면 연락처를 저장할 수 있는 기능
+- [x]  뒤로가기 버튼을 누를 때 만약 작성된 내용이 있다면 확인 팝업이 나타나는 기능
+- [x]  취소 버튼을 누를 때 만약 작성된 내용이 있다면 확인 팝업이 나타나는 기능

app/build.gradle.kts

@@ -41,6 +41,7 @@ dependencies {
     implementation("androidx.appcompat:appcompat:1.6.1")
     implementation("com.google.android.material:material:1.11.0")
     implementation("androidx.constraintlayout:constraintlayout:2.1.4")
+    implementation("androidx.activity:activity:1.8.0")
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")

app/src/main/AndroidManifest.xml

@@ -12,8 +12,14 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Contacts"
         tools:targetApi="31">
+        <activity
+            android:name=".DetailActivity"
+            android:exported="false" />
         <activity
             android:name=".MainActivity"
+            android:exported="false" />
+        <activity
+            android:name=".ListActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -23,4 +29,4 @@
         </activity>
     </application>
 
-</manifest>
+</manifest>

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

@@ -0,0 +1,96 @@
+package campus.tech.kakao.contacts
+
+import android.os.Bundle
+import android.view.View
+import android.widget.TextView
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class DetailActivity : AppCompatActivity() {
+    lateinit var name: TextView
+    lateinit var phoneNumber: TextView
+    lateinit var mail: TextView
+    lateinit var birthday: TextView
+    lateinit var gender: TextView
+    lateinit var memo: TextView
+    lateinit var nameInputField: TextView
+    lateinit var phoneNumberInputField: TextView
+    lateinit var mailInputField: TextView
+    lateinit var birthdayInputField: TextView
+    lateinit var genderInputField: TextView
+    lateinit var memoInputField: TextView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_detail)
+
+        initVar()
+        bindField()
+        setVisibleCompletedFields()
+    }
+
+    fun initVar(){
+        name = findViewById(R.id.name)
+        phoneNumber = findViewById(R.id.phone_number)
+        mail = findViewById(R.id.mail)
+        birthday = findViewById(R.id.birthday)
+        gender = findViewById(R.id.gender)
+        memo = findViewById(R.id.memo)
+        nameInputField = findViewById(R.id.input_name_field)
+        phoneNumberInputField = findViewById(R.id.input_phone_number_field)
+        mailInputField = findViewById(R.id.input_mail_field)
+        birthdayInputField = findViewById(R.id.input_birthday_field)
+        genderInputField = findViewById(R.id.input_gender_field)
+        memoInputField = findViewById(R.id.input_memo_field)
+    }
+
+    fun bindField(){
+        val intent = intent
+        nameInputField.setText(intent.getStringExtra("name"))
+        phoneNumberInputField.setText(intent.getStringExtra("phoneNumber"))
+        mailInputField.setText(intent.getStringExtra("mail"))
+        birthdayInputField.setText(intent.getStringExtra("birthday"))
+        genderInputField.setText(intent.getStringExtra("gender"))
+        memoInputField.setText(intent.getStringExtra("memo"))
+    }
+
+    fun setVisibleCompletedFields() {
+        if(ExistMail()){
+            mail.visibility = View.VISIBLE
+            mailInputField.visibility = View.VISIBLE
+        }
+        if(ExistBirthday()){
+            birthday.visibility = View.VISIBLE
+            birthdayInputField.visibility = View.VISIBLE
+        }
+        if(ExistGender()){
+            gender.visibility = View.VISIBLE
+            genderInputField.visibility = View.VISIBLE
+        }
+        if(ExistMemo()){
+            memo.visibility = View.VISIBLE
+            memoInputField.visibility = View.VISIBLE
+        }
+
+    }
+
+
+
+    fun ExistMail(): Boolean {
+        return mailInputField.text.toString() != ""
+    }
+
+    fun ExistBirthday(): Boolean {
+        return birthdayInputField.text.toString() != ""
+    }
+
+    fun ExistGender(): Boolean {
+        return genderInputField.text.toString() != ""
+    }
+
+    fun ExistMemo(): Boolean {
+        return memoInputField.text.toString() != ""
+    }
+}

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

@@ -0,0 +1,136 @@
+package campus.tech.kakao.contacts
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+
+class ListActivity : AppCompatActivity() {
+    lateinit var resultLauncher: ActivityResultLauncher<Intent>
+    lateinit var descriptionText: TextView
+    lateinit var plusButton: TextView
+    lateinit var recyclerView: RecyclerView
+    lateinit var contactList: MutableList<Contact>
+    lateinit var adapter: RecyclerViewAdapter
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_list)
+
+        initVar()
+        initListener()
+
+    }
+
+    fun initVar(){
+        contactList = mutableListOf<Contact>()
+        adapter = RecyclerViewAdapter(contactList, LayoutInflater.from(this), this)
+        plusButton = findViewById<TextView>(R.id.plus_item_button)
+        descriptionText = findViewById<TextView>(R.id.description_text)
+        initRecyclerView()
+        initResultLauncher()
+    }
+
+    fun initRecyclerView() {
+        recyclerView = findViewById<RecyclerView>(R.id.recyclerView)
+        recyclerView.adapter = adapter
+        recyclerView.layoutManager = LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
+    }
+
+    fun initResultLauncher() {
+        resultLauncher =
+            registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+                if (result.resultCode == RESULT_OK) {
+                    val contact = Contact(
+                        result.data?.getStringExtra("name") ?: "",
+                        result.data?.getStringExtra("phoneNumber") ?: "",
+                        result.data?.getStringExtra("mail") ?: "",
+                        result.data?.getStringExtra("birthday") ?: "",
+                        result.data?.getStringExtra("gender") ?: "",
+                        result.data?.getStringExtra("memo") ?: "",
+                    )
+                    Log.d("contact2", contact.name)
+                    contactList.add(contact)
+                    setDescriptionTextVisibilityGone()
+                    adapter.notifyItemInserted(contactList.size)
+                }
+            }
+    }
+    fun initListener(){
+        plusButton.setOnClickListener {
+            moveToAddContact()
+        }
+    }
+    fun moveToAddContact() {
+        val intent = Intent(this@ListActivity, MainActivity::class.java)
+        resultLauncher.launch(intent)
+    }
+
+    fun setDescriptionTextVisibilityGone() {
+        descriptionText.visibility = View.GONE
+    }
+
+}
+
+class RecyclerViewAdapter(
+    var contactList: MutableList<Contact>,
+    var inflater: LayoutInflater,
+    var context: Context
+) : RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder>() {
+
+    inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val userTitle: TextView
+        val userName: TextView
+
+        init {
+            userTitle = itemView.findViewById(R.id.user_title)
+            userName = itemView.findViewById(R.id.user_name)
+            itemView.setOnClickListener {
+                val position: Int = adapterPosition
+                val intent = Intent(context, DetailActivity::class.java)
+                val sendContact = contactList.get(position)
+                intent.putExtra("name", sendContact.name)
+                intent.putExtra("phoneNumber", sendContact.phoneNumber)
+                intent.putExtra("mail", sendContact.mail)
+                intent.putExtra("birthday", sendContact.birthday)
+                intent.putExtra("gender", sendContact.gender)
+                intent.putExtra("memo", sendContact.memo)
+                context.startActivity(intent)
+            }
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = inflater.inflate(R.layout.contact_item, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.userTitle.text = contactList.get(position).name[0].toString()
+        holder.userName.text = contactList.get(position).name
+    }
+
+    override fun getItemCount(): Int {
+        return contactList.size
+    }
+}
+
+class Contact(
+    var name: String,
+    var phoneNumber: String,
+    var mail: String,
+    var birthday: String,
+    var gender: String,
+    var memo: String
+) {}