ScrollView

activity_main.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=".MainActivity">
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:onClick="onButton1Clicked"
        android:text="Click Me!" />

    <HorizontalScrollView
        android:id="@+id/horScrollView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ScrollView
            android:id="@+id/scrollView"
            android:layout_width="wrap_content"
            android:layout_height="match_parent">

            <ImageView
                android:id="@+id/imageView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />
        </ScrollView>
    </HorizontalScrollView>
</LinearLayout>

 

MainActivity.java

package com.example.samplescrollview;

import androidx.appcompat.app.AppCompatActivity;

import android.content.res.Resources;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.ScrollView;

public class MainActivity extends AppCompatActivity {
    ScrollView scrollView;
    ImageView imageView;
    BitmapDrawable bitmap;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        // 레이아웃에 정의된 뷰 객체를 참조
        scrollView = findViewById(R.id.scrollView);
        imageView = findViewById(R.id.imageView);
        scrollView.setHorizontalScrollBarEnabled(true); // 수평 스크롤바 사용 기능을 설정함

        // 리소스의 이미지 참조
        Resources res = getResources();
        bitmap = (BitmapDrawable) res.getDrawable(R.drawable.back);
        int bitmapWidth = bitmap.getIntrinsicWidth();
        int bitmapHeight = bitmap.getIntrinsicHeight();

        // 이미지 리소스와 이미지 크기 설정
        imageView.setImageDrawable(bitmap);
        imageView.getLayoutParams().width = bitmapWidth;
        imageView.getLayoutParams().height = bitmapHeight;
    }

    public void onButton1Clicked(View v) {
        changeImage();
    }

    // 다른 이미지 리소스 변경
    private void changeImage() {
        Resources res = getResources();
        bitmap = (BitmapDrawable) res.getDrawable(R.drawable.cat);
        int bitmapWidth = bitmap.getIntrinsicWidth();
        int bitmapHeight = bitmap.getIntrinsicHeight();

        imageView.setImageDrawable(bitmap);
        imageView.getLayoutParams().width = bitmapWidth;
        imageView.getLayoutParams().height = bitmapHeight;
    }
}