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Added Android slow file access info

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Martin Tůma 2023-06-17 00:59:06 +02:00
parent 768a440d47
commit 52a63c3ff1
1 changed files with 8 additions and 2 deletions
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@ -427,9 +427,15 @@
<p>Due to the limited file system access on Android, all map formats that consist of <p>Due to the limited file system access on Android, all map formats that consist of
multiple files (eg. OziExplorer maps or World-file georeferenced images) will not load multiple files (eg. OziExplorer maps or World-file georeferenced images) will not load
properly when loaded from the application menu. You have to put such maps properly when loaded from the application menu. You have to put such maps
to the GPXSee map directory to make them work.</p> to the GPXSee map directory to make them work. The same applies to all SQLite-based
map formats because of a Qt bug/limitation.</p>
<p>The same applies to all SQLite-based map formats.</p> <p>Even though all other maps will load from the application menu, it is strongly
recommended for all offline maps to be also moved to the GPXSee map directory as the file
access on Android is two orders of magnitude (100x!) slower when the file is located
and opened from some "user folder" than if it is accessed/opened in the application folder.
Especially IMG maps on new Android versions (>=11) are almost unusable when opened from
the application menu.</p>
<h3>OpenGL</h3> <h3>OpenGL</h3>
<p>There are numerous OpenGL issues in Qt that cause some kind of broken rendering <p>There are numerous OpenGL issues in Qt that cause some kind of broken rendering