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Old 11-04-2018, 04:11 AM   #1
nikoski
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PDF viewer app not opening PDF files when started by CC?

PDF viewer 3.0.1 installed on my android 8.1:
https://play.google.com/store/apps/d...spdfkit.viewer

From within this app i can open PDF files without issues.

But when i try to open a pdf from CC by "open with..." the app starts empty and all buttons greyed out.
A similar behaviour i have also with another PDF app: Xodo PDF reader.

With other PDF apps, EZPDF & Moon+, there is no issue at all.

Is this in someway related to CC and any solution for that?

Last edited by nikoski; 11-04-2018 at 05:41 AM.
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Old 11-04-2018, 06:09 PM   #2
chaley
CC Android & calibre dev
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Quote:
Originally Posted by nikoski View Post
PDF viewer 3.0.1 installed on my android 8.1:
https://play.google.com/store/apps/d...spdfkit.viewer

From within this app i can open PDF files without issues.

But when i try to open a pdf from CC by "open with..." the app starts empty and all buttons greyed out.
A similar behaviour i have also with another PDF app: Xodo PDF reader.

With other PDF apps, EZPDF & Moon+, there is no issue at all.

Is this in someway related to CC and any solution for that?
This means that the app is "broken". The fact that CC attempts to launch the app says that it is advertising that it can open files, but it then fails to open them.

Given that you are running android 8.1, this might be related to Google's change that requires apps to make a copy of a file that is to be passed to another app. CC hasn't yet been updated to do that (will happen soon). However, Android is supposed to recognize that the supplying app is running in "compatibility mode" and allow files to be passed. This is what happens with my OnePlus 5 (Android 8.1) and the Google 8.1 device emulator.
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