직접 풀어보기 5-2

결과창

 

 

메인 액티비티

package com.jieun.doitmyself5_2;

import androidx.appcompat.app.AppCompatActivity;

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

public class MainActivity extends AppCompatActivity {

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

        ImageView imgView = findViewById(R.id.imgView);
        Button imgBtn = findViewById(R.id.imgBtn);
        imgBtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                imgView.setImageResource(R.drawable.maru);
            }
        });
    }
}

 

레이아웃

<?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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:orientation="horizontal">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="#d1180b"/>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:orientation="vertical">
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_weight="1"
                android:background="#ffd400"/>

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:layout_weight="1"
                android:background="#000000">

                <Button
                    android:id="@+id/imgBtn"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="킹율 나와라" />
            </LinearLayout>

        </LinearLayout>

    </LinearLayout>


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        android:background="#0019f4"
        android:gravity="center">
        <ImageView
            android:id="@+id/imgView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"/>
    </LinearLayout>


</LinearLayout>