[Android Studio] Chapter 10 연습문제

[연습문제]

5

activitiy_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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="새 화면 열기"
        android:id="@+id/btnNewActivity"/>

</LinearLayout>

second.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"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="새 화면 열기"
        android:id="@+id/btnNewActivity2"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="돌아가기"
        android:id="@+id/btnReturn"/>


</LinearLayout>

third.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"
    tools:context=".MainActivity">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="돌아가기"
        android:id="@+id/btnReturn2"/>


</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.cookandroid.project10_1">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/Theme.Project10_1">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".SecondActivity" android:label="Second 액티비티"/>
        <activity android:name=".ThirdActivity" android:label="Third 액티비티"/>
    </application>

</manifest>

 

 

MainActivity.java

package com.cookandroid.project10_1;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RadioButton;
import android.widget.RadioGroup;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button btnNewActivity = (Button) findViewById(R.id.btnNewActivity);


        btnNewActivity.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), SecondActivity.class);
                startActivity(intent);
            }
        });
    }
}

SecondActivity.java

package com.cookandroid.project10_1;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import androidx.annotation.Nullable;

public class SecondActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.second);
        Button btnNewActivity = (Button) findViewById(R.id.btnNewActivity2);
        Button btnReturn = (Button) findViewById(R.id.btnReturn);

        btnNewActivity.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), ThirdActivity.class);
                startActivity(intent);
            }
        });

        btnReturn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }
}

ThirdActivity.java

package com.cookandroid.project10_1;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

import androidx.annotation.Nullable;

public class ThirdActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.third);

        Button btnReturn = (Button) findViewById(R.id.btnReturn2);
        btnReturn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });

    }
}

 

 

 

6

 

activitiy_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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="3">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv1"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/acha"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv2"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/cchi"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv3"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/eevee"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="3">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv4"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/haemu"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv5"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/lan"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv6"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/nuni"/>
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="3">
        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv7"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/paeng"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv8"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/pichu"/>

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:id="@+id/iv9"
            android:layout_margin="5dp"
            android:layout_weight="1"
            android:src="@drawable/pika"/>
    </LinearLayout>
    <Button
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:id="@+id/btnResult"
        android:layout_weight="1"
        android:text="투표 종료"/>


</LinearLayout>

result.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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/btnStart"
            android:text="  자동보기 시작  "/>
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:id="@+id/btnStop"
            android:text="  자동보기 정지  "/>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:orientation="vertical"
        android:layout_height="match_parent">
        <ViewFlipper
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="9"
            android:id="@+id/viewFlipper">
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img1"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img2"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img3"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img4"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img5"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img6"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img7"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img8"/>
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/img9"/>

        </ViewFlipper>
        <Button
            android:id="@+id/btnReturn"
            android:layout_weight="1"
            android:layout_span="2"
            android:text="돌아가기"
            android:layout_gravity="center"
            android:layout_height="wrap_content"
            android:layout_width="match_parent" />
    </LinearLayout>


</LinearLayout>

 

 

MainActivity.java

package com.cookandroid.a10_6;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setTitle("포켓몬 선호도 투표");

        final int voteCount[] = new int[9];
        for (int i = 0; i < 9; i++) {
            voteCount[i] = 0;
        }

        ImageView image[] = new ImageView[9];
        Integer imageId[] = {R.id.iv1, R.id.iv2, R.id.iv3, R.id.iv4, R.id.iv5, R.id.iv6, R.id.iv7, R.id.iv8, R.id.iv9};
        final String imgName[] = {"아차모", "찌르성게", "이브이", "해무기", "란클루스", "누니머기", "팽도리", "피츄", "피카츄"};

        for (int i = 0; i < imageId.length; i++) {
            final int index;
            index = i;
            image[index] = (ImageView) findViewById(imageId[index]);
            image[index].setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    voteCount[index]++;
                    Toast.makeText(getApplicationContext(), imgName[index] + ": 총 " + voteCount[index] + " 표", Toast.LENGTH_SHORT).show();
                }
            });

            Button btnFinish = (Button) findViewById(R.id.btnResult);
            btnFinish.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Intent intent = new Intent(getApplicationContext(), ResultActivity.class);
                    intent.putExtra("VoteCount", voteCount);
                    intent.putExtra("ImageName", imgName);
                    startActivity(intent);
                }
            });
        }
    }}

ResultActivity.java

package com.cookandroid.a10_6;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ViewFlipper;

public class ResultActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.result);
        setTitle("투표 결과");

        Button btnStart, btnStop;
        final ViewFlipper viewFlipper;

        Intent intent = getIntent();
        int[] voteResult = intent.getIntArrayExtra("VoteCount");
        String[] imageName = intent.getStringArrayExtra("ImageName");

        btnStart = (Button) findViewById(R.id.btnStart);
        btnStop = (Button) findViewById(R.id.btnStop);
        viewFlipper= (ViewFlipper) findViewById(R.id.viewFlipper);

        Integer ivID[] = {R.id.img1, R.id.img2, R.id.img3, R.id.img4, R.id.img5, R.id.img6, R.id.img7, R.id.img8, R.id.img9};
        Integer imageFileID[] = {R.drawable.acha, R.drawable.cchi, R.drawable.eevee, R.drawable.haemu, R.drawable.lan, R.drawable.nuni, R.drawable.paeng, R.drawable.pichu, R.drawable.pika};

        Integer result[] = new Integer[9];
        ImageView iv[] = new ImageView[9];

        for(int i = 0; i<result.length; i++){
            result[i] = 0;
        }

        for(int i = 0; i<iv.length; i++){
            iv[i] = (ImageView) findViewById(ivID[i]);
        }

        for(int i=0; i<8; i++){
            for(int j=i+1; j<9; j++){
                if(voteResult[i]<voteResult[j]){result[i]++;}
                else{result[j]++;}
            }
        }

        for(int i=0;i<9;i++){
            iv[result[i]].setImageResource(imageFileID[i]);
        }

        btnStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewFlipper.setFlipInterval(1000);
                viewFlipper.startFlipping();
            }
        });

        btnStop.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                viewFlipper.stopFlipping();
            }
        });

        Button btnReturn = (Button) findViewById(R.id.btnReturn);
        btnReturn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }
}