[CB-12943] iOS updateProgress blocking UI

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: cordova-plugin-file-transfer (DEPRECATED)
• Labels: iOS performance
• Assignee: Unassigned
• Reporter: Oliver Ziegler
• Created: 22/Jun/17 08:29
• Updated: 22/Nov/17 01:13
• Resolved: 22/Nov/17 01:13

Description

When starting a download we receive calls to updatePrrogress and corresponding javascript callback this many times, so CPU will get to almost 100% and UI will non or very slowly responsive.
I just made a workaround in https://github.com/OliverZiegler/cordova-plugin-file-transfer.git on branch iOS_throttle where the updateProgress event will only be send to the javascript source every second.

We didn't get this issue on Android.