두 개의 이미지뷰에 이미지 번갈아 보여주기

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" >

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <HorizontalScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">

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

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

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

                        <ImageView
                            android:id="@+id/imageView1"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content"
                            app:srcCompat="@drawable/image01" />
                    </LinearLayout>
                </ScrollView>
            </LinearLayout>
        </HorizontalScrollView>
    </FrameLayout>

    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:layout_weight="0"
        android:gravity="center">

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center">

            <Button
                android:id="@+id/button1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="onButton1"
                android:text="▲" />

            <Button
                android:id="@+id/button2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="onButton2"
                android:text="▼" />
        </TableRow>

    </TableLayout>

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1">

        <HorizontalScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent">

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

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

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

                        <ImageView
                            android:id="@+id/imageView2"
                            android:layout_width="match_parent"
                            android:layout_height="wrap_content" />
                    </LinearLayout>
                </ScrollView>
            </LinearLayout>
        </HorizontalScrollView>
    </FrameLayout>
</LinearLayout>

 

 

 

MainActivity

package com.example.a08;

import androidx.appcompat.app.AppCompatActivity;

import android.media.Image;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    ImageView iv1;
    ImageView iv2;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        iv1 = findViewById(R.id.imageView1);
        iv2 = findViewById(R.id.imageView2);

        button01 = findViewById(R.id.button1);
    }

    public void onButton1(View v){
        showIv1();
    }

    public void onButton2(View v){
        showIv2();
    }

    private void showIv1(){
        iv1.setImageResource(R.drawable.image01);
        iv2.setImageResource(0);
    }

    private void showIv2(){
        iv2.setImageResource(R.drawable.image01);
        iv1.setImageResource(0);
    }
}