[Android] Implement ML IMedia isPresent field in MediaWrapper

[Nicolas Pomepuy]

vlc-android | branch: master | Nicolas Pomepuy <nicolas at videolabs.io> | Fri Jan 22 09:13:17 2021 +0100| [4454ec4ea68c9fb5964974852d7542c80dc8d0c7] | committer: Nicolas Pomepuy

Implement ML IMedia isPresent field in MediaWrapper

> https://code.videolan.org/videolan/vlc-android/commit/4454ec4ea68c9fb5964974852d7542c80dc8d0c7
---

 .../src/main/res/drawable/ic_network_media_off.xml | 29 ++++++++++++++++++++++
 .../videolan/vlc/util/DummyMediaWrapperProvider.kt |  2 +-
 medialibrary/jni/medialibrary.cpp                  |  2 +-
 medialibrary/jni/utils.cpp                         |  4 ++-
 .../videolan/medialibrary/MLServiceLocator.java    |  6 ++---
 .../interfaces/media/MediaWrapper.java             | 17 ++++++++++---
 .../medialibrary/media/MediaWrapperImpl.java       |  4 +--
 .../medialibrary/stubs/StubDataSource.java         | 12 +++++----
 .../medialibrary/stubs/StubMediaWrapper.java       |  4 +--
 9 files changed, 61 insertions(+), 19 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/4454ec4ea68c9fb5964974852d7542c80dc8d0c7