안드로이드 스튜디오 : 사진찍기/갤러리 불러오기

 

이코드는 버튼을 클릭 시 

사진찍기와 갤러리 불러오기에 대한 선택지를 주고 선택지에 따라 

사진찍기 - > 카메라 열기 

갤러리 불러오기 -> 나의 갤러리 불러오기 

등을 사용할 수 있다. 

package com.jhn.googlemaptest;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.core.content.FileProvider;

import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.hardware.Camera;
import android.media.ExifInterface;
import android.media.Image;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.ParcelFileDescriptor;
import android.provider.MediaStore;
import android.provider.OpenableColumns;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.maps.GoogleMap;

import org.apache.commons.io.IOUtils;

import java.io.File;
import java.io.FileDescriptor;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class ResultActivity extends AppCompatActivity {
    TextView txt1;
    TextView txt2;
    Button button;
    ImageView imgPhoto;
    String imgpath;
    public static final int REQ_REGISTER_CHECK = 101;
    public static final int REQ_LOGIN_CHECK = 102;
    public static final int REQ_PHOTO_CAPTURE = 103;
    public static final int REQ_PHOTO_SELECTION = 104;

    Uri uri;
    File file;

    private ProgressDialog progressDialog;

    String[] permissions = {
            Manifest.permission.INTERNET,
            Manifest.permission.CAMERA,
            Manifest.permission.READ_EXTERNAL_STORAGE,
            Manifest.permission.WRITE_EXTERNAL_STORAGE,
            Manifest.permission.ACCESS_COARSE_LOCATION,
            Manifest.permission.ACCESS_FINE_LOCATION
    };
    private File photoFile;

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

        txt1 = findViewById(R.id.txt1);
        txt2 = findViewById(R.id.txt2);
        button = findViewById(R.id.button);
        imgPhoto = findViewById(R.id.imgPhoto);


        Intent intent = getIntent();
        long duration = intent.getExtras().getLong("duration");

        txt1.setText("이용시간 : " + (duration / 60000) + "분");
        txt2.setText("이용금액 : " + (duration / 60000) * 200 + "원");


        // 권한확인
        if (!hasPermissions(this)) ActivityCompat.requestPermissions(this, permissions, 1);

        // 사진촬영하기 버튼
      button.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View view) {
              showDialog();
          }
      });

    }
    private void camera(){
        int permissionCheck = ContextCompat.checkSelfPermission(
                ResultActivity.this, Manifest.permission.CAMERA);

        if(permissionCheck != PackageManager.PERMISSION_GRANTED){
            ActivityCompat.requestPermissions(ResultActivity.this,
                    new String[]{Manifest.permission.CAMERA} ,
                    1000);
            Toast.makeText(ResultActivity.this, "카메라 권한 필요합니다.",
                    Toast.LENGTH_SHORT).show();
            return;
        } else {
            Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            if(i.resolveActivity(ResultActivity.this.getPackageManager())  != null  ){
                // 사진의 파일명을 만들기
                String fileName = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
                photoFile = getPhotoFile(fileName);

                Uri fileProvider = FileProvider.getUriForFile(ResultActivity.this,
                        "com.jhn.googlemaptest.fileprovider", photoFile);
                i.putExtra(MediaStore.EXTRA_OUTPUT, fileProvider);

                startActivityForResult(i, 100);

            } else{
                Toast.makeText(ResultActivity.this, "이폰에는 카메라 앱이 없습니다.",
                        Toast.LENGTH_SHORT).show();
            }
        }
    }


    private void album(){

        if(checkPermission()){
            displayFileChoose();
        }else{
            requestPermission();
        }
    }

    private File getPhotoFile(String fileName) {
        File storageDirectory = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        try{
            return File.createTempFile(fileName, ".jpg", storageDirectory);
        }catch (IOException e){
            e.printStackTrace();
            return null;
        }
    }

    private boolean checkPermission(){
        int result = ContextCompat.checkSelfPermission(ResultActivity.this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE);
        if(result == PackageManager.PERMISSION_DENIED){
            return false;
        }else{
            return true;
        }
    }

    private void displayFileChoose() {
        Intent i = new Intent();
        i.setType("image/*");
        i.setAction(Intent.ACTION_GET_CONTENT);
        startActivityForResult(Intent.createChooser(i, "SELECT IMAGE"), 300);
    }
    private void requestPermission() {
        if(ActivityCompat.shouldShowRequestPermissionRationale(ResultActivity.this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE)){
            Toast.makeText(ResultActivity.this, "권한 수락이 필요합니다.",
                    Toast.LENGTH_SHORT).show();
        }else{

            ActivityCompat.requestPermissions(ResultActivity.this,
                    new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 500);
        }
    }

    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {

        switch (requestCode) {
            case 1000: {
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Toast.makeText(ResultActivity.this, "권한 허가 되었음",
                            Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(ResultActivity.this, "아직 승인하지 않았음",
                            Toast.LENGTH_SHORT).show();
                }
                break;
            }
            case 500: {
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Toast.makeText(ResultActivity.this, "권한 허가 되었음",
                            Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(ResultActivity.this, "아직 승인하지 않았음",
                            Toast.LENGTH_SHORT).show();
                }

            }

        }
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    }

    public boolean hasPermissions(Context context) {
        if (context != null && permissions != null) {
            for (String permission : permissions) {
                if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED) {
                    return false;
                }
            }
        }
        return true;
    }

    private void getPermission(){
        ActivityCompat.requestPermissions(this, permissions, 1000);
    }

    /* 사진 찍기 메서드 */
    public void showPhotoCaptureActivity(){
        try {
            file = createFile();
            if (file.exists()){
                file.delete();
            }

            file.createNewFile();
        }catch (Exception e){
            Log.e("createFile Err: ", e.getMessage());
        }

        // SDK 버전에 따른 파일 경로 설정
        if (Build.VERSION.SDK_INT >= 24){
            uri = FileProvider.getUriForFile(this, BuildConfig.APPLICATION_ID, file);
        }else {
            uri = Uri.fromFile(file);
        }

        // 사진촬영
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
        startActivityForResult(intent, REQ_PHOTO_CAPTURE);
        this.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri));
        Toast.makeText(this, "Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri ->" + uri, Toast.LENGTH_LONG).show();

    } // showPhotoCaptureActivity() END

    /* 이미지 파일 생성 메서드 */
    public File createFile() throws IOException {
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "JPEG_" + timeStamp + "_";
        File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File image = File.createTempFile(
                imageFileName,  /* prefix */
                ".jpg",         /* suffix */
                storageDir      /* directory */
        );
        imgpath = image.getAbsolutePath();
        return image;
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        if(requestCode == 100 && resultCode == RESULT_OK){

            Bitmap photo = BitmapFactory.decodeFile(photoFile.getAbsolutePath());

            ExifInterface exif = null;
            try {
                exif = new ExifInterface(photoFile.getAbsolutePath());
            } catch (IOException e) {
                e.printStackTrace();
            }
            int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                    ExifInterface.ORIENTATION_UNDEFINED);
            photo = rotateBitmap(photo, orientation);

            // 압축시킨다. 해상도 낮춰서
            OutputStream os;
            try {
                os = new FileOutputStream(photoFile);
                photo.compress(Bitmap.CompressFormat.JPEG, 50, os);
                os.flush();
                os.close();
            } catch (Exception e) {
                Log.e(getClass().getSimpleName(), "Error writing bitmap", e);
            }

//            Intent intent = new Intent(ResultActivity.this, ResultphotoActivity.class);
//            intent.putExtra("type", "camera");
//            intent.putExtra("filePath",  photoFile.getAbsolutePath());
//            startActivity(intent);

        }else if(requestCode == 300 && resultCode == RESULT_OK && data != null &&
                data.getData() != null){

            Uri albumUri = data.getData( );

//            Intent intent = new Intent(ResultActivity.this, ResultphotoActivity.class);
//            intent.putExtra("type", "album");
//            intent.putExtra("imageUri", albumUri.toString());
//            startActivity(intent);

        }

        super.onActivityResult(requestCode, resultCode, data);
    }

    private void showProgress(String message) {
        progressDialog = new ProgressDialog(this);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        progressDialog.setMessage(message);
        progressDialog.show();
    }

    public static Bitmap rotateBitmap(Bitmap bitmap, int orientation) {

        Matrix matrix = new Matrix();
        switch (orientation) {
            case ExifInterface.ORIENTATION_NORMAL:
                return bitmap;
            case ExifInterface.ORIENTATION_FLIP_HORIZONTAL:
                matrix.setScale(-1, 1);
                break;
            case ExifInterface.ORIENTATION_ROTATE_180:
                matrix.setRotate(180);
                break;
            case ExifInterface.ORIENTATION_FLIP_VERTICAL:
                matrix.setRotate(180);
                matrix.postScale(-1, 1);
                break;
            case ExifInterface.ORIENTATION_TRANSPOSE:
                matrix.setRotate(90);
                matrix.postScale(-1, 1);
                break;
            case ExifInterface.ORIENTATION_ROTATE_90:
                matrix.setRotate(90);
                break;
            case ExifInterface.ORIENTATION_TRANSVERSE:
                matrix.setRotate(-90);
                matrix.postScale(-1, 1);
                break;
            case ExifInterface.ORIENTATION_ROTATE_270:
                matrix.setRotate(-90);
                break;
            default:
                return bitmap;
        }
        try {
            Bitmap bmRotated = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
            bitmap.recycle();
            return bmRotated;
        }
        catch (OutOfMemoryError e) {
            e.printStackTrace();
            return null;
        }
    }

    private void dismissProgress() {
        progressDialog.dismiss();
    }
    private void showDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(ResultActivity.this);
        builder.setTitle("선택하세요").setItems(R.array.camera_array, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                if (i == 0) {
                    // 카메라로 사진찍는 함수 실행
                    camera();
                } else if (i == 1) {
                    // 앨범에서 사진 가져오는 함수 실행
                    album();
                }
            }
        }); AlertDialog alertDialog = builder.create();
        alertDialog.show();
    }

    }