Vincent Spallek created FLEX-33989:
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Summary: ViewNavigatorBase discards MultiDPIBitmapSource
information for icon when saving and re-loading view data
Key: FLEX-33989
URL: https://issues.apache.org/jira/browse/FLEX-33989
Project: Apache Flex
Issue Type: Bug
Components: Mobile: ViewNavigator
Affects Versions: Apache Flex 4.11.0
Reporter: Vincent Spallek
Steps to reproduce:
- Create a TabbedViewNavigatorApplication with applicationDPI set to 160 dpi
- Add a couple of ViewNavigator that have a MultiDPIBitmapSource as icon, and
add icons for another resolution, e.g. 320 dpi
- Run on a device with that higher resolution
- Result: higher resolution icons will be loaded and displayed in the proper
scale
- Stop the application and reload it
- Result: higher resolution icons will be loaded but not scaled properly, so
they appear to large and with low resolution
Root cause: ViewNavigatorBase discards the MultiDPIBitmapSource information in
saveViewData() and instead only saves the high resolution bitmap. After
re-loading in ViewNavigatorBase.loadViewData(), only the bitmap is restored
without the DPI information. Hence, BitmapImage etc. don't have sufficient
information to properly scale the image, see BitmapImage.measure()
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