Am 01.11.22 um 02:33 schrieb Kyle Nusbaum via Interest:
Hi everyone.
I have a question about opening files using Qt on Android.
Specifically, I'm trying to open a pdf file that was downloaded
through my application.
Supposedly I should be using QDesktopServices::openUrl
(https://doc.qt.io/qt-6/qdesktopservices.html#openUrl), which *sort*
of works, in that It opens a list of apps. When I select one, though,
it fails with:
10-31 20:24:39.631 9734 9734 E AndroidRuntime:
java.lang.RuntimeException: Unable to start activity
ComponentInfo{foundation.e.pdfviewer/com.gsnathan.pdfviewer.MainActivity_}:
java.lang.SecurityException: Permission Denial: opening provider
androidx.core.content.FileProvider from ProcessRecord{4283490
9734:foundation.e.pdfviewer/u0a115} (pid=9734, uid=10115) that is not
exported from UID 10270
I've had little success searching. It looks like I may need something
like Intent.FLAG_GRANT_READ_URI_PERMISSION, but can't find in the Qt
code where that would be used.
Anyone have any experience using this function or otherwise using
Intents with Qt on Android?
Thanks,
-- Kyle
Hi Kyle,
five years ago I did some work on Sharing Text and Files with Qt Apps on
Android and iOS. There's an example app:
https://github.com/ekke/ekkesSHAREexample and a 4-part-Blog starting
with this one:
https://www.qt.io/blog/2017/12/01/sharing-files-android-ios-qt-app
<https://www.qt.io/blog/2017/12/01/sharing-files-android-ios-qt-app>
Don't know if all still works with newest Android SDK API Level, but
perhaps you'll find some worthfully infos
next weeks / months I'll move from Qt 5.15 to Qt 6.5 and port all my
apps and rework all my old examples and take a look how all of this will
work best on Qt6 and blog again
ekke
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