* Rename ids to something meaningful
* Remove inner layouts from constraint layout
* Use same text and button styles
* Make sure the background image doesn't overlap with the text
This uses the new Storage Access Framework, which was required for
accessing files on the SD Card starting in android-19. But the API
was really limited until android-21, and not really complete until
android-23 or even android-26. So the levels of usability will vary a
lot based on how new the version of Android is.
This is a quick hack to reuse the Latest view with a slightly simpler
layout. It makes the "basic" flavor fully functional as an fdroid client.
The goal here is just to have something simpler with as little new code as
possible. It is essential that the whitelabeling and "Light" aka "basic"
flavor does not increase the maintenance load.
closesfdroid/fdroidclient#48fdroid/fdroidclient!692fdroid/fdroidclient!695
"full" is the original F-Droid app with all the features. It should still
build the exact same app after this change. "basic" is the smallest
version of F-Droid possible. It does not yet build, nor work.