addView(전화번호부 만들기)

사용된 Activity

• PhoneBookActivity

package com.example.myapplication

import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.widget.LinearLayout
import android.widget.TextView

class PhoneBookActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_phone_book)

        val phoneBook = createFakePhoneBook(30)
        createPhoneBookList(phoneBook)
        // 줄이면 -> createPhoneBookList(createFakePhoneBook())
    }

    fun createFakePhoneBook(fakeNumber: Int = 10, phoneBook: PhoneBook = PhoneBook()):PhoneBook {
        for (i in 0 until fakeNumber) {
            phoneBook.addPerson(
                Person(
                    name = ""+i+"번째 사람",
                    number = ""+i+"번째 사람의 전화번호"
                )
            )
        }
        return phoneBook
    }

    fun createPhoneBookList(phoneBook: PhoneBook){
        val layoutInflater = LayoutInflater.from(this@PhoneBookActivity)
        val container = findViewById<LinearLayout>(R.id.phonebook_list_container)
        for(i in 0 until phoneBook.personList.size){
            val view = layoutInflater.inflate(R.layout.phonebook_item, null)
            val personNameView = view.findViewById<TextView>(R.id.person_name)
            personNameView.setText(phoneBook.personList.get(i).name)
            addSetOnClickListener(phoneBook.personList.get(i), view)
            container.addView(view)
        }
    }

    fun addSetOnClickListener(person: Person, view: View){
        view.setOnClickListener {
            val intent = Intent(this@PhoneBookActivity, PhoneBookDetailActivity::class.java)
            intent.putExtra("name", person.name)
            intent.putExtra("number", person.number)
            startActivity(intent)
        }
    }
}

// 전화번호부
class PhoneBook() {
    val personList = ArrayList<Person>();

    fun addPerson(person: Person) {
        personList.add(person)
    }
}

class Person(val name: String, val number: String) {

}

• PhoneBookDetailActivity

package com.example.myapplication

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_phone_book_detail.*

class PhoneBookDetailActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_phone_book_detail)

        getPersonInfoAndDraw()

        back.setOnClickListener{
            //뒤로가기
            onBackPressed()
        }
    }

    fun getPersonInfoAndDraw(){
        val name = intent.getStringExtra("name")
        val number = intent.getStringExtra("number")

        person_detail_name.setText(name)
        person_detail_number.setText(number)
    }
}

사용된 XML

• activity_phone_book.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".PhoneBookActivity">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:padding="4dp"
        android:text="전화번호부"
        android:textSize="40dp" />

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:fillViewport="true">

        <LinearLayout
            android:id="@+id/phonebook_list_container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical" />
    </ScrollView>

</LinearLayout>

• activity_phone_book_detail.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#605656"
    android:orientation="vertical"
    tools:context=".PhoneBookDetailActivity">

    <ImageView
        android:id="@+id/back"
        android:src="@drawable/cat"
        android:scaleType="centerCrop"
        android:layout_width="50dp"
        android:layout_height="50dp"/>

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="300dp"
        android:layout_marginBottom="16dp"
        android:src="@drawable/man" />

    <TextView
        android:id="@+id/person_detail_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="abc"
        android:textColor="#ffffff"
        android:textSize="50dp"
        android:gravity="center"
        android:layout_marginBottom="16dp"/>

    <TextView
        android:id="@+id/person_detail_number"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="01012341234"
        android:textColor="#ffffff"
        android:textSize="50dp"
        android:gravity="center"
        android:layout_marginBottom="16dp"/>




</LinearLayout>

• phonebook_item

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="#6A5D5D"
    android:padding="6dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

    <ImageView
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:src="@drawable/man"
        android:layout_marginRight="16dp"/>

    <TextView
        android:id="@+id/person_name"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:textSize="20dp"
        android:gravity="center"
        android:textStyle="bold"
        android:text="사용자"
        android:textColor="#ffffff"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#ffffff"/>

</LinearLayout>

---

- 전화번호부를 위한 클래스 생성

// 전화번호부
class PhoneBook() {
    val personList = ArrayList<Person>();

    fun addPerson(person: Person) {
        personList.add(person)
    }
}

class Person(val name: String, val number: String) {

}

- for문으로 전화번호부 생성

fun createFakePhoneBook(fakeNumber: Int = 10, phoneBook: PhoneBook = PhoneBook()):PhoneBook {
        for (i in 0 until fakeNumber) {
            phoneBook.addPerson(
                Person(
                    name = ""+i+"번째 사람",
                    number = ""+i+"번째 사람의 전화번호"
                )
            )
        }
        return phoneBook
    }

 

- 생성된 전화번호부를 받아 화면에 달아주는 기능

 

fun createPhoneBookList(phoneBook: PhoneBook){
        val layoutInflater = LayoutInflater.from(this@PhoneBookActivity)
        val container = findViewById<LinearLayout>(R.id.phonebook_list_container)
        for(i in 0 until phoneBook.personList.size){
            val view = layoutInflater.inflate(R.layout.phonebook_item, null)
            val personNameView = view.findViewById<TextView>(R.id.person_name)
            personNameView.setText(phoneBook.personList.get(i).name)
            addSetOnClickListener(phoneBook.personList.get(i), view)
            container.addView(view)
        }
    }

 

- 클릭시 디테일로 넘어가는 기능

fun addSetOnClickListener(person: Person, view: View){
        view.setOnClickListener {
            val intent = Intent(this@PhoneBookActivity, PhoneBookDetailActivity::class.java)
            intent.putExtra("name", person.name)
            intent.putExtra("number", person.number)
            startActivity(intent)
        }
    }

- 디테일 엑티비에서 받기

fun getPersonInfoAndDraw(){
        val name = intent.getStringExtra("name")
        val number = intent.getStringExtra("number")

        person_detail_name.setText(name)
        person_detail_number.setText(number)
    }

- 디테일 엑티비티의 뒤로가는 기능

back.setOnClickListener{
            //뒤로가기
            onBackPressed()
        }

 

- 메인에서의 실행구문

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_phone_book)

        val phoneBook = createFakePhoneBook(30)
        createPhoneBookList(phoneBook)
        // 줄이면 -> createPhoneBookList(createFakePhoneBook())
    }