I'm using last version of the library (3.6.2b) on android and working with PdfLayoutView. The bug happens in all pdfs i've tested but only in some devices.
Devices i've tested (both same android version lollipop 5.x)
Samsung tablet 10.1 note - WORKS OK
HUAWEI MediaPad M2 10.0 - BUG
- If i scroll while my pdf is scrolling, it has an strange and buggy behavior. Sometimes renders the first page for some miliseconds and then renders correct again or starts rendering the first page again (like a full reload of the pdf).
- If i zoom while scrolling, the bug is similar. It starts zooming my first page of the pdf at coords 0,0.
When i worked with the old PDFReaderController (v3.4) i had a similar issue but when zooming while scrolling, But when i finished zooming, the render shown where it was supposed to be.
It was an OS update but i don't know if android version changed. Current version is 5.1.1 and if it changed, it was from 5.1 but i'm not sure. This huawei tablet uses EMUI user interface wrapping android OS (my english is very bad hehe).
I didn't see anything strange in log, I thought it could be due to low memory but testing after update (same memory available) it worked fine. Both cases showed around 550M free in debug mode.