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slow loading of qr on first time

See original GitHub issue

📋 Bug Details

slow loading of qr on first time

key	value
Reported At	2018-12-16 23:16:48 UTC
Email	nicolas@emurgo.io
Categories	Report a Problem
App Version	1.0 (1)
Session Duration	41
Device	iPhone X, iOS 12.1
Display	375x812 (@3x)
Location	Brooklyn, United States (en-US)

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📱 View Hierarchy

This bug was reported from RCTModalHostViewController Find its interactive view hierarchy with all its subviews here: 👉 Check View Hierarchy 👈

📉 Session Profiler

Key	Value
CPU Load	20.8%
Used Memory	22.7% - 0.29/1.27 GB
Used Storage	18.3% - 44.63/244.08 GB
Connectivity	wifi - WiFi
Battery	32% - unplugged
Orientation	portrait

Find all the changes that happened in the parameters mentioned above during the last 60 seconds before the bug was reported here: 👉 View Full Session Profiler 👈

🔎 Logs

User Steps

Here are the last 10 steps done by the user right before the bug was reported:

23:16:12 Tap in SKIP TO WALLET LIST DEFAULT Clear storage Crash of type RCTSafeAreaView in UIViewController
23:16:14 Scroll in RCTCustomScrollView in UIViewController
23:16:16 Scroll in RCTCustomScrollView in UIViewController
23:16:19 Scroll in RCTCustomScrollView in UIViewController
23:16:19 Scroll in RCTCustomScrollView in UIViewController
23:16:20 Scroll in RCTCustomScrollView in UIViewController
23:16:24 Swipe in ADD WALLET of type RCTView in UIViewController
23:16:25 Tap in My wallet do  of type RCTView in UIViewController
23:16:28 Tap in 4:55:13 AM Fee: -0.167994 ADA sent of type RCTView in UIViewController
23:16:31 Tap in (not mine) Ae2tdPwUPEZAghGCdQykbGxc991wdoA8bXmSn7eCGuUKXF4EsRhWj4PJitn of type RCTTextView in UIViewController

Find all the user steps done by the user throughout the session here: 👉 View All User Steps 👈

📷 Images

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Issue Analytics

State:
Created 5 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

MichalPetrocommented, Dec 18, 2018

@nicarq we have been trying to replicate this issue several times on both Android and iOS, I tried it also on iPhone X. I was able to replicate it only once:

brand new installation of app
import wallet with many many transactions
immediately after wallets starts fetching transactions I opened random transaction and clicked on a random address
QR code display delay was like 1-2 seconds

The cause most likely is that we are using some React component for the QR code and it needs some heavy resources for first initialization. If we are still fetching the transactions on the background (performance heavy operation), it may take a longer time for the component to initialize.

The workaround we can do - load some random QR code somewhere outside the screen during app initialization. Let me know what you think and if you want to proceed.

0reactions

nicarqcommented, Jan 16, 2019

Gotcha! thanks @MichalPetro!