[BACKEND]어댑터 뷰

https://developer.android.com/guide/topics/ui/binding?hl=ko

AdapterView  |  Android 개발자  |  Android Developers

 

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/Text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="180dp"
        android:layout_marginBottom="19dp"
        android:text="선택을 시작하겠습니까?"
        android:textColor="#ff0000"
        android:textSize="20dp"
        app:layout_constraintBottom_toTopOf="@+id/checkBox"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <CheckBox
        android:id="@+id/checkBox"
        android:layout_width="116dp"
        android:layout_height="0dp"
        android:layout_marginBottom="14dp"
        android:text="시작함!"
        app:layout_constraintBottom_toTopOf="@+id/textView2"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/Text1" />

    <RadioGroup
        android:id="@+id/Rgroup1"
        android:layout_width="181dp"
        android:layout_height="0dp"
        android:layout_marginBottom="10dp"
        android:orientation="horizontal"
        android:visibility="invisible"
        app:layout_constraintBottom_toTopOf="@+id/button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView2">

        <RadioButton
            android:id="@+id/RdoDog"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="개" />

        <RadioButton
            android:id="@+id/RdoCat"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="고양이" />

        <RadioButton
            android:id="@+id/RdoRabbit"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="토끼" />

    </RadioGroup>

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="14dp"
        android:layout_weight="1"
        android:text="좋아하는 애완동물은?"
        android:visibility="invisible"
        app:layout_constraintBottom_toTopOf="@+id/Rgroup1"
        app:layout_constraintStart_toStartOf="@+id/Rgroup1"
        app:layout_constraintTop_toBottomOf="@+id/checkBox" />

    <Button
        android:id="@+id/BtnOk"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="329dp"
        android:text="선택완료"
        android:visibility="invisible"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/Rgroup1" />

    <ImageView
        android:id="@+id/ImgPat"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="36dp"
        android:visibility="invisible"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:srcCompat="@drawable/dog" />


</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity

package com.cookandroidappstudy.mypetphotoappexample;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    TextView text1, text2;
    CheckBox chkAgree;
    RadioGroup rGroup1;
    RadioButton rdoDog, rdoCat, rdoRabbit;
    Button btnOk;
    ImageView imgPet;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setTitle("애완동물 사진 보기");

        text1 = (TextView) findViewById(R.id.Text1); // 선택을 시작하시겠습니까?
        chkAgree = (CheckBox)findViewById(R.id.checkBox); // 체크 박스

        text2 = (TextView)findViewById(R.id.TextView); // 좋아하는 동물은?
        rGroup1 = (RadioGroup)findViewById(R.id.Rgroup1); // 라디오 그룹
        rdoDog = (RadioButton)findViewById(R.id.RdoDog); // 라디오버튼 : Dog
        rdoCat = (RadioButton)findViewById(R.id.RdoCat); // 라디오버튼 : Cat
        rdoRabbit = (RadioButton)findViewById(R.id.RdoRabbit); // 라디오버튼 : Rabbit

        btnOk = (Button)findViewById(R.id.BtnOk); // 선택 완료 버튼
        imgPet = (ImageView)findViewById(R.id.ImgPat); // 선택된 이미지가 보여지는 이미지뷰 영역

        chkAgree.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
                if(chkAgree.isChecked()==true){
                    text2.setVisibility(View.VISIBLE);
                    rGroup1.setVisibility(View.VISIBLE);
                    btnOk.setVisibility(View.VISIBLE);
                    imgPet.setVisibility(View.VISIBLE);
                }else{
                    text2.setVisibility(View.INVISIBLE);
                    rGroup1.setVisibility(View.INVISIBLE);
                    btnOk.setVisibility(View.INVISIBLE);
                    imgPet.setVisibility(View.INVISIBLE);
                }
            }
        });

        btnOk.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                switch (rGroup1.getCheckedRadioButtonId()){
                    case R.id.RdoDog:
                        imgPet.setImageResource(R.drawable.dog);
                        break;
                    case R.id.RdoCat:
                        imgPet.setImageResource(R.drawable.cat);
                        break;
                    case R.id.RdoRabbit:
                        imgPet.setImageResource(R.drawable.rabbit);
                        break;
                    default:
                        Toast.makeText(getApplicationContext(), "동물 먼저 선택하세요!", Toast.LENGTH_SHORT).show();
                }
            }
        });
    }
}