This module forces Immersive mode for all applications on KitKat. The effect is similar to CM's Expanded Desktop mode.
Users wanting to configure this on a per-app basis should look out for an App Settings update, when I push a patch against it.
Immersive mode - Swiping down or up to show UI elements.
KitKat, 4.4+ only!
Source code is here: https://github.com/MohammadAG/Xposed-ImmerseMe
You may not post it on the Play Store, whether for free or not.
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