Fixed playback row callback not notified in updateRowMetaData
onRowChanged callback was originally called from updateRowMetaData() in
PlaybackControlGlue. After switching to the new host, this callback was
not triggered if developers didn't use the new glue host.
This resulted in the playback row UI not being updated (e.g.
progress bar missing, no updates to media title).
Now triggered onRowChanged callback for PlaybackGlueHostOld and
PlaybackSupportGlueHostOld.
Also, updated the demo app to simulate preparing a media item and
checking whether the UI is propery updated.
Change-Id: I55b14b88a2d8e9c68af34b775c4eb7a93ee84da6
Fixes: 33559090
Test: ./gradlew support-leanback-v17:connectedCheck
-Pandroid.testInstrumentationRunnerArguments.class=android.support.v17.leanback.app.PlaybackControlGlueTest#testOnRowChangedCallback
./gradlew support-leanback-v17:connectedCheck
-Pandroid.testInstrumentationRunnerArguments.class=android.support.v17.leanback.app.PlaybackControlSupportGlueTest#testOnRowChangedCallback
8 files changed