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[#113][안드로이드] Firebase Storage에 이미지 업로드하기 (갤러리, 사진촬영)

[안드로이드] Firebase Storage에 이미지 업로드하기 (갤러리, 사진촬영)

이전 게시물에 이어서..
([#107][안드로이드] 카메라로 사진찍기 / 갤러리에서 이미지 불러오기 (TEDPERMISSION 이용))

 카메라에서 촬영한 이미지는 잘 전송이 되는데, 앨범에서 선택하면 자꾸 이상한 오류가 나서 코드를 변경했다.. 이걸로 며칠을 헤맸는지 ㅠㅠㅠㅠ

 다이얼로그로 사진촬영 / 앨범선택 / 취소 
private void makeDialog(){
        AlertDialog.Builder alt_bld = new AlertDialog.Builder(WriteClassActivity.this,R.style.MyAlertDialogStyle);
        alt_bld.setTitle("사진 업로드").setIcon(R.drawable.check_dialog_64).setCancelable(
                false).setPositiveButton("사진촬영",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        // 사진 촬영 클릭
                        Log.v("알림", "다이얼로그 > 사진촬영 선택");
                        flag = 0;
                        takePhoto();
                    }
                }).setNeutralButton("앨범선택",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialogInterface, int id) {
                        Log.v("알림", "다이얼로그 > 앨범선택 선택");
                        flag = 1;
                        //앨범에서 선택
                        selectAlbum();
                }
                }).setNegativeButton("취소   ",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        Log.v("알림", "다이얼로그 > 취소 선택");
                        // 취소 클릭. dialog 닫기.
                        dialog.cancel();
                    }
                });
        AlertDialog alert = alt_bld.create();
        alert.show();
    }
cs
사진찍기 클릭시
1. takePhoto 함수 
//사진 찍기 클릭
    public void takePhoto(){
        // 촬영 후 이미지 가져옴
        String state = Environment.getExternalStorageState();
        if(Environment.MEDIA_MOUNTED.equals(state)){
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
            if(intent.resolveActivity(getPackageManager())!=null){
                File photoFile = null;
                try{
                    photoFile = createImageFile();
                }catch (IOException e){
                    e.printStackTrace();
                }
                if(photoFile!=null){
                    Uri providerURI = FileProvider.getUriForFile(this,getPackageName(),photoFile);
                    imgUri = providerURI;
                    intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, providerURI);
                    startActivityForResult(intent, FROM_CAMERA);
                }
            }
        }else{
            Log.v("알림", "저장공간에 접근 불가능");
            return;
        }
    }
cs

2. createImageFile() 이미지 생성 함수

    public File createImageFile() throws IOException{
        String imgFileName = System.currentTimeMillis() + ".jpg";
        File imageFile= null;
        File storageDir = new File(Environment.getExternalStorageDirectory() + "/Pictures", "ireh");
        if(!storageDir.exists()){
            //없으면 만들기
            Log.v("알림","storageDir 존재 x " + storageDir.toString());
            storageDir.mkdirs();
        }
        Log.v("알림","storageDir 존재함 " + storageDir.toString());
        imageFile = new File(storageDir,imgFileName);
        mCurrentPhotoPath = imageFile.getAbsolutePath();
        return imageFile;
    }
cs

 3. galleryAddPic() 찍은 사진을 갤러리에 저장하는 함수

    public void galleryAddPic(){
        Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        File f = new File(mCurrentPhotoPath);
        Uri contentUri = Uri.fromFile(f);
        mediaScanIntent.setData(contentUri);
        sendBroadcast(mediaScanIntent);
        Toast.makeText(this,"사진이 저장되었습니다",Toast.LENGTH_SHORT).show();
    }
cs


앨범선택 클릭시
1. selectAlbum() 앨범열기
//앨범 선택 클릭
    public void selectAlbum(){
        //앨범에서 이미지 가져옴
        //앨범 열기
        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setType(MediaStore.Images.Media.CONTENT_TYPE);
        intent.setType("image/*");
        startActivityForResult(intent, FROM_ALBUM);
    }
cs

선택 후 처리 (FROM_ALBUM, FROM_CAMERA에 따라 다르게 처리)
@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(resultCode != RESULT_OK){
            return;
        }
        switch (requestCode){
            case FROM_ALBUM : {
                //앨범에서 가져오기
                if(data.getData()!=null){
                    try{
                        photoURI = data.getData();
                        Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), photoURI);
                        img1.setImageBitmap(bitmap);
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                }
                break;
            }
            case FROM_CAMERA : {
                //카메라 촬영
                try{
                    Log.v("알림", "FROM_CAMERA 처리");
                    galleryAddPic();
                    img1.setImageURI(imgUri);
                }catch (Exception e){
                    e.printStackTrace();
                }
                break;
            }
        }
    }
cs

FIREBASE 저장소로 보내기
public void makeConfirmDialog(){
        AlertDialog.Builder alt_bld = new AlertDialog.Builder(WriteClassActivity.this, R.style.MyAlertDialogStyle);
        alt_bld.setTitle("작성 완료").setIcon(R.drawable.check_dialog_64).setMessage("글을 게시하시겠습니까?").setCancelable(
                false).setPositiveButton("네",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                 
                            //DB에 등록하기
                            final String cu = mAuth.getUid();
                            //1. 사진을 storage에 저장하고 그 url을 알아내야함..
                            String filename = cu + "_" + System.currentTimeMillis();
                            StorageReference storageRef = storage.getReferenceFromUrl("본인의 Firebase 저장소").child("WriteClassImage/" + filename);
                            UploadTask uploadTask;
                            Uri file = null;
                            if(flag ==0){
                                //사진촬영
                                 file = Uri.fromFile(new File(mCurrentPhotoPath));
                            }else if(flag==1){
                                //앨범선택
                               file = photoURI;
                            }
                            uploadTask = storageRef.putFile(file);
                            final ProgressDialog progressDialog = new ProgressDialog(WriteClassActivity.this,R.style.MyAlertDialogStyle);
                            progressDialog.setMessage("업로드중...");
                            progressDialog.show();
                            // Register observers to listen for when the download is done or if it fails
                            uploadTask.addOnFailureListener(new OnFailureListener() {
                                @Override
                                public void onFailure(@NonNull Exception exception) {
                                    // Handle unsuccessful uploads
                                    Log.v("알림", "사진 업로드 실패");
                                    exception.printStackTrace();
                                }
                            }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                                @Override
                                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                                    // taskSnapshot.getMetadata() contains file metadata such as size, content-type, and download URL.
                                    downloadUrl = taskSnapshot.getDownloadUrl();
                                    Log.v("알림", "사진 업로드 성공 " + downloadUrl);
                                }
                            });
                    }
                }).setNegativeButton("아니오",
                new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        // 아니오 클릭. dialog 닫기.
                        dialog.cancel();
                    }
                });
        AlertDialog alert = alt_bld.create();
        alert.show();
    }
cs
결과
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