0. 출처: https://www.edwith.org/boostcourse-android/lecture/17103/



1. 실행 결과 화면

   



2. activity_main.xml

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center_horizontal"
    tools:context="com.tistory.qlyh8.practice.MainActivity">
 
    <Button
        android:id="@+id/button"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:text="사진 찍기"/>
 
    <ImageView
        android:id="@+id/image_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>
 
cs



3. MainActivity.java

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package com.tistory.qlyh8.practice;
 
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ImageView;
 
import java.io.File;
 
public class MainActivity extends AppCompatActivity {
 
    private ImageView imageView;
    private File file;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        imageView = findViewById(R.id.image_view);
        // sd 카드 폴더 참조
        File sdcard = Environment.getExternalStorageDirectory();
        file = new File(sdcard, "capture.jpg");
 
        findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // 사진 앱 띄우기
                // 액션 정보를 전달하는 인텐트 객체 생성
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                // 파일에서부터 Uri 를 생성하여 카메라 앱에서 찍은 사진을 저장할 위치 넣음
                intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
                startActivityForResult(intent, 101);
            }
        });
    }
 
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode == 101 && resultCode == RESULT_OK){
            // 이미지 resizing
            BitmapFactory.Options options = new BitmapFactory.Options();
            // 8분의 1크기로 비트맵 객체 생성
            options.inSampleSize = 8;
            // 파일을 디코딩하여 비트맵 객체 생성
            Bitmap bitmap = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
            // 이미지뷰에 비트맵 객체 설정
            imageView.setImageBitmap(bitmap);
        }
    }
}
cs



4. AndroidManifest.xml

sdcard 권한 추가

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.tistory.qlyh8.practice">
 
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 
    <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/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>
cs



5. build.gradle (app)

targetSdkVersion을 22로 낮추어 실행 (불필요한 코드 추가하지 않기)

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