프레임 레이아웃을 이용한 버튼 클릭 시 그림 전환

1. MainActivity.java

 

package ...
 
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
 
public class MainActivity extends AppCompatActivity {
    ImageView imageView;
    ImageView imageView2;
    ImageView imageView3;
 
    int index = 0;
 
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main); // XML 레이아웃에 정의된 뷰들을 메모리에 객체화하는 역할을 함.
 
        imageView = (ImageView) findViewById(R.id.imageView);
        imageView2 = (ImageView) findViewById(R.id.imageView2);
        imageView3 = (ImageView) findViewById(R.id.imageView3);
 
        Button button = (Button) findViewById(R.id.button);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (index == 0) {
                    imageView.setVisibility(View.VISIBLE);
                    imageView2.setVisibility(View.GONE);
                    imageView3.setVisibility(View.GONE);
                } else if (index == 1) {
                    imageView.setVisibility(View.GONE);
                    imageView2.setVisibility(View.VISIBLE);
                    imageView3.setVisibility(View.GONE);
                } else if (index == 2) {
                    imageView.setVisibility(View.GONE);
                    imageView2.setVisibility(View.GONE);
                    imageView3.setVisibility(View.VISIBLE);
                }
 
                index++;
                if (index > 2) {
                    index = 0;
                }
            }
        });
    }
}
 

 

2. activity_main.xml

 

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
 
    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="13dp"
        android:text="바꾸기"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true" />
 
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/button"
        android:layout_centerHorizontal="true">
 
        <ImageView
            android:id="@+id/imageView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:srcCompat="@drawable/landscape01" />
        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:srcCompat="@drawable/landscape02" />
        <ImageView
            android:id="@+id/imageView3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:srcCompat="@drawable/landscape03" />
    </FrameLayout>
 
</RelativeLayout>