Fix trigger media scan

[davigonz]

Fixes #2612

QA

Test plan: https://github.com/owncloud/QA/blob/master/Mobile/Android/Release_2.12.0/2613%20-%20trigger%20media%20scan.md

Bugs & improvements:

• (1) mov files [NOT FIXEABLE]
• (2) wrapped app images preview Fix trigger media scan #2613 (comment) [FIXED]

[davigonz]

@jesmrec media scan triggering stopped working due to some changes we performed to make uploads and downloads with wrapped apps properly worked so could you test them to see that are still working?

[davigonz]

@jesmrec code approved, ready to test

[jesmrec]

(1)

I think this is not a problem in the oC app, but just in case: .mov files are not displayed in the Gallery (after checking different formats). Am i wrong or can we do something? @davigonz

[jesmrec]

(2) READY TO TEST

@jesmrec media scan triggering stopped working due to some changes we performed to make uploads and downloads with wrapped apps properly worked so could you test them to see that are still working?

about this. I compared the behaviour in version 2.11.0 and the current fix. With the fix, the pics are not displayed after being downloaded. Unfortunately, the behaviour is not the same (due to the fix?)

MI wrapper 8.5 Gen1

With Android 2.11.0, pics downloaded and displayed correctly:

With the fix, download error

Tested with Android 5X v8 and Samsung S9 v9

I can provide as many wrapped apks as needed.

[davigonz]

I think this is not a problem in the oC app, but just in case: .mov files are not displayed in the Gallery (after checking different formats). Am i wrong or can we do something? @davigonz

.mov is a format created by Apple so I guess Android does not support it by default.

Some users reported the same problem on S9 devices => https://www.reddit.com/r/GalaxyS9/comments/9t9dif/mov_files_not_showing_in_my_gallery/

[jesmrec]

(2) is fixed. But here we have gone to the scratch point. Now, pics are correctly downloaded and previewed in both wrapped and non-wrapped apps. But the Samsung gallery only shows the pics when the app is non-wrapped. That means, the initial bug persists if the app is MI-wrapped. Any other workaround is posible here @davigonz?

CC @michaelstingl

[davigonz]

But here we have gone to the scratch point. Now, pics are correctly downloaded and previewed in both wrapped and non-wrapped apps. But the Samsung gallery only shows the pics when the app is non-wrapped. That means, the initial bug persists if the app is MI-wrapped. Any other workaround is posible here @davigonz?

This is how the wrapped apps work, files contained in the wrapped app container should not be accessible from other apps (including the gallery), but only from other wrapped apps. Otherwise, the wrapped apps would not be secure since they would be exposing their data to any app.

[jesmrec]

Ok, then, everything fixed. Approved on my side.