Unlock Popup doesn't appear immediately when trying to unlock a vault

[NovaliX-Dev]

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Summary

When i try to unlock my vault, the unlock popup doesn't show up immediately, instead waiting 2-3 seconds (can vary) before showing up.

From what i remember, before the popup was not appearing at all. Re-adding the vault into Cryptomator made the issue less severe.

System Setup

• iOS: 17.3
• Cryptomator: 2.5.0

Cloud Type

OneDrive

Steps to Reproduce

1. If it's not locked already, lock your vault
2. Try to open your vault in the File app

Expected Behavior

The unlock pop-up should appear immediately.

Actual Behavior

It seems it waits 2-3 seconds before showing up.

Reproducibility

Always

Relevant Log Output

No response

Anything else?

RPReplay_Final1707144895.mp4

[phil1995]

Hi @NovaliX-Dev
thanks for reporting. Unfortunately there isn't much we can do here since we trigger this screen immediately but there is a slight delay coming from iOS since the unlock screen is a separate extension (FileProviderExtensionUI) and we can't really control how fast Apple wants to show it to the user. We would also like to have it visible immediately since the vault is already locked. But note that you also can't interact with the items you see for 1-2s in your locked vault.

[NovaliX-Dev]

Hi @phil1995 ,
Thank you for the explanation.

I have one question thought. There are other case where we see custom "pop-ups" (not sure it's the right name) showing up from apps : when using auto-fill from password managers on websites(eg Bitwarden) when sharing files with apps (eg Signal), etc.

I've tested the pop-ups with those apps and their showing animations is flawless. That's why I'm thinking there is a bug in the Cryptomator app code.

Are these pop-ups the same kind as the pop-up Cryptomator use ? That would be logical to me, but it's worth asking.

[iammajid]

Hi @NovaliX-Dev,

Apps like Bitwarden and Signal use system extensions such as AutoFill and Share extensions, which are optimized by iOS for immediate display and minimal initialization. These extensions are designed for quick tasks and have less overhead.

Cryptomator's unlock prompt uses the File Provider Extension UI to integrate securely with the iOS Files app. This extension handles encrypted files and requires a bit more initialization time to establish a secure environment, which can lead to the slight delay you're experiencing.

We acknowledge that this isn't ideal and agree there's room for optimization. We're actively exploring ways to improve the performance, but due to the nature of the File Provider Extension, we haven't found a way to reduce the delay yet.

[NovaliX-Dev]

Hi @iammajid, thank you for explanation.

I hope you will find a way soon 🙏.