Toast: 랜덤 숫자 맞추기 게임

Toast: 랜덤 숫자 맞추기 게임

1. 레이아웃  activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/game">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:text="행운의 주인공이 되세요."
        android:textSize="25sp"
        android:textStyle="bold"
        android:textColor="#000"
        android:gravity="center"
        />
    
    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <Button
            android:id="@+id/btn01"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text = "선택1"
            android:textSize="15sp"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="5dp"
            android:background="@drawable/round_box"
            android:layout_weight="1" />

        <Button
            android:id="@+id/btn02"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text = "선택2"
            android:textSize="15sp"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="5dp"
            android:background="@drawable/round_box"
            android:layout_weight="1" />

        <Button
            android:id="@+id/btn03"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text = "선택3"
            android:textSize="15sp"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="5dp"
            android:background="@drawable/round_box"
            android:layout_weight="1" />

        <Button
            android:id="@+id/btn04"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text = "선택4"
            android:textSize="15sp"
            android:layout_marginLeft="10dip"
            android:layout_marginRight="5dp"
            android:background="@drawable/round_box"
            android:layout_weight="1" />
    </LinearLayout>

    <TextView
         android:id="@+id/result"
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:text="당첨 결과 : "
        android:textSize="25sp"
        android:textStyle="bold"
        android:textColor="#ca1c1c"
        android:gravity="center"
        />

</LinearLayout>

2. round_box.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#d941c5" />
    <corners android:radius="20dp" />
</shape>

3. 실행 클래스 MainActivity.java

package com.progdv.app04_game;

        import android.os.Bundle;
        import android.support.v7.app.AppCompatActivity;
        import android.view.View;
        import android.widget.Button;
        import android.widget.TextView;

        import java.util.Random;

public class MainActivity extends AppCompatActivity implements View.OnClickListener{
    Button btn01, btn02, btn03, btn04;
    TextView result;
    int r = 0;

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

        btn01 = (Button)findViewById(R.id.btn01);
        btn02 = (Button)findViewById(R.id.btn02);
        btn03 = (Button)findViewById(R.id.btn03);
        btn04 = (Button)findViewById(R.id.btn04);
        result = (TextView)findViewById(R.id.result);

        btn01.setOnClickListener(this);
        btn02.setOnClickListener(this);
        btn03.setOnClickListener(this);
        btn04.setOnClickListener(this);

        r = new Random().nextInt(4)+1;
    }

    @Override
    public void onClick(View v) {
        int n = 0;
        String msg = null;

        switch (v.getId()){
            case R.id.btn01:
                n = 1;
                break;
            case R.id.btn02:
                n = 2;
                break;
            case R.id.btn03:
                n = 3;
                break;
            case R.id.btn04:
                n = 4;
                break;
        }

        if(n == r){
            msg = "축하합니다. 당첨되셨습니다.!!";
        }else{
            msg = "안타깝습니다. \n다음 기회에 다시 도전하세요.";
        }

        result.setText(msg);
    }
}