Memory usage increases when scrolling collectionview if resources count is more than 191

[tranb3r]

Description

I have a simple maui application for android with a collectionview and several static resources.
The collectionview is NOT using the static resources.
Here is a strange behavior that happens when scrolling the collectionview:

• when the resources count is LESS than 190, the memory usage is stable. This is expected.
• when the resources count is MORE than 191, the memory usage increases. Isn't it weird?

It's very easy to reproduce. Same behavior for both Debug and Release.

ok.webm
ko.webm

Steps to Reproduce

1. Open repro and launch the app on android emulator (Pixel 5).
2. The resources count should be 191. Scroll the collectionView. Memory usage increases.
3. Reset memory by clicking the GC button. Memory goes back to its inital value.
4. Decrease the resources count to 190. Scroll the collectionView. Memory usage is stable.

Link to public reproduction project repository

https://github.com/tranb3r/Issues/tree/main/MauiAppStaticResourceMemory

Version with bug

8.0.21 SR4.1

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

No response

Did you find any workaround?

No workaround.

Relevant log output

No response

[kevinxufei]

Can repro this issue at Android platform at the latest 17.10 Preview 5 (8.0.3/8.0.21), and a smaller resources count also results in an increase in memory usage.

[tranb3r]

@kevinxufei
I'm suprised you also get the issue with only 90 resources.
Did you run the app in Release? In Debug, you'd have to disable HotReload.

[kevinxufei]

The previous result did not disable 'HotReload'. If resources count>190, memory usage increases. If resources count<190, memory usage is stable.Thanks for reminding！

[tranb3r]

Still happening with maui 9.0.10 and dotnet-android 35.0.7