[Android] Improve permission delegate

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey at videolan.org> | Mon Dec  9 15:04:02 2019 +0100| [6b1cbe26db164a6cd2f62ab9cb9c346e57f28784] | committer: Nicolas Pomepuy

Improve permission delegate

> https://code.videolan.org/videolan/vlc-android/commit/6b1cbe26db164a6cd2f62ab9cb9c346e57f28784
---

 vlc-android/res/layout/activity_onboarding.xml     |  25 +++-
 .../vlc/gui/helpers/hf/BaseHeadlessFragment.kt     |  23 +++-
 .../gui/helpers/hf/StoragePermissionsDelegate.kt   |  69 ++++++----
 .../vlc/gui/helpers/hf/WriteExternalDelegate.kt    |  11 +-
 .../vlc/gui/onboarding/OnboardingActivity.kt       | 150 ++++++++++-----------
 .../vlc/gui/tv/preferences/PreferencesFragment.kt  |   2 +-
 .../src/org/videolan/vlc/util/Permissions.kt       |  32 +++--
 7 files changed, 181 insertions(+), 131 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/6b1cbe26db164a6cd2f62ab9cb9c346e57f28784