如何避免 java.lang.StackOverflowError: stack size 8MB ，将图像保存到 Firebase 存储并将其下载 uri 保存到 Firebase 数据库

Question

我正在尝试通过使用camera 或gallery 拍摄新照片来从用户那里获取照片。它工作得很好，我可以得到照片并将其显示在屏幕上。我想要做的是将图像保存到Firebase 存储和Firebase Database 中的链接。

public void selectImage()
{
    final String[] items = {"Camera", "Gallery","Cancel"};
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setTitle("Pick a photo");
    builder.setItems(items, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            if(which == 0)
            {
                ContentValues values = new ContentValues();
                values.put(MediaStore.Images.Media.TITLE, "New Picture");
                values.put(MediaStore.Images.Media.DESCRIPTION, "From your Camera");
                mUri = getContentResolver().insert(
                        MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT, mUri);
                startActivityForResult(intent, REQUEST_CAMERA);
            }
            else if(which == 1)
            {
                Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                intent.setType("image/*");
                startActivityForResult(Intent.createChooser(intent, "Foto seçin"), SELECT_FILE);
            }
            else if(which == 2)
            {
                dialog.dismiss();
            }
        }
    });
    builder.show();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == REQUEST_CAMERA) {
            try {
                Bitmap thumbnail = MediaStore.Images.Media.getBitmap(
                        getContentResolver(), mUri);
                ExifInterface ei = new ExifInterface(getRealPathFromURI(mUri));
                int orientation = ei.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                        ExifInterface.ORIENTATION_UNDEFINED);
                Bitmap rotatedBitmap;
                switch (orientation) {
                    case ExifInterface.ORIENTATION_ROTATE_90:
                        rotatedBitmap = rotateImage(thumbnail, 90);
                        break;

                    case ExifInterface.ORIENTATION_ROTATE_180:
                        rotatedBitmap = rotateImage(thumbnail, 180);
                        break;

                    case ExifInterface.ORIENTATION_ROTATE_270:
                        rotatedBitmap = rotateImage(thumbnail, 270);
                        break;

                    case ExifInterface.ORIENTATION_NORMAL:
                    default:
                        rotatedBitmap = thumbnail;
                }
                profilePicture.setImageBitmap(rotatedBitmap);
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else if (requestCode == SELECT_FILE) {
            mUri = data.getData();
            profilePicture.setImageURI(mUri);
            setPhoto(mUri);
        }
    }
    final StorageReference reference = FirebaseStorage.getInstance().getReference().child("profile_photos/" + mUser.getNumber() + ".jpg");
    reference.putFile(mUri);
    reference.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>() {
        @Override
        public void onSuccess(Uri uri) {
            DatabaseReference reference1 = FirebaseDatabase.getInstance().getReference().child("Users").child(mUser.getNumber()).child("Picture");
            reference1.setValue(uri);
        }
    });
}

当我想将图像保存到 Firebase 时，出现 java.lang.StackOverflowError: stack size 8MB 错误。即使图像保存在存储中，Database 中也不会出现任何变化。如何避免此错误并将下载的图像uri 保存在Database 中？

Answer 1

我有同样的问题。原来你不能setValue 的URI。

尝试将您的 URI 转换为字符串，这样致命错误就会消失。

 reference1.setValue(uri.toString());

Answer 2

你的做法是错误的，你必须将图片上传到StorageReference而不是直接上传到数据库，我在数据库中你将存储返回的参考路径上传后。