save private key as a file: open device folder

[DenBond7]

@tomholub Please describe details or move it to another milestone

[tomholub]

When I want to save a private key on a device, it will not choose any folder, so the save button is grayed out and I cannot save it until I choose a folder. It confuses me every time:

[tomholub]

Is there a way to pre-define a folder to open? Maybe just root folder would do:

[DenBond7]

@tomholub

Is there a way to pre-define a folder to open?

Unfortunately, No there is not. Android doesn't have any settings for that.

For creating a key we are using Storage Access Framework (SAF). The Android app which is handling ACTION_CREATE_DOCUMENT (this app is a part of the Android system) can be different from version to version. For example on my Xiami Mi A1 (Android 8.0) the default folder is Downloads

[tomholub]

I tested a few other apps saving files, and they all seem to be using Download Manager. If we did that, it would presumably be easier, but the file would have to always end up in Downloads. Is that correct?

[tomholub]

For now moving it out

[DenBond7]

If we did that, it would presumably be easier, but the file would have to always end up in Downloads. Is that correct?

Yes, it is. DownloadManager just downloads a file from the given Uri.

Storage Access Framework (SAF) is a more powerfull solution because it helps to work with different document providers. A user can easy save his private key to Google Drive, Dropbox and to other different places using a couple steps.

I think we can add the third option to the backup options. We can use both methods. Or we can use DownloadManager as a simpler solution.

[DenBond7]

Yes, it is. DownloadManager just downloads a file from the given Uri.

Sorry, I was wrong. DownloadManager can only download HTTP/HTTPS URIs. So we can't use it for our purposes. But we can create a similar solution.

[tomholub]

For now, let's leave it as is. We will revisit it when users start complaining about it.

[DenBond7]

deprecated