Fixes a bug where updateItems is first called with recents and then with hotseat. This causes the Taskbar to first be All Apps, Divider, and then Recents. The layout transition path assumes though that the Divider after All Apps is not for recents in this case, which is wrong. Due to this assumption, it skips over the divider and then adds the hotseat items after it (should be added before). Added a test for this case.
Flag: com.android.launcher3.taskbar_recents_layout_transition
Bug: 343521765
Test: go/testedequals
Change-Id: Ia690c71fe482709e35ab302a7b497bf547eb4478
Only remove divider when it needs to be removed or moved between All Apps and recents locations. Keep All Apps and QSB in Taskbar at all times. LayoutTransition does not work if views are being removed and then immediately readded (what current code branch does).
Overflow is not supported yet with the LayoutTransition flag.
Test: go/tested-equals
Flag: com.android.launcher3.taskbar_recents_layout_transition
Bug: 368522274, 343521765
Change-Id: I9ae1d7c52e853106cdf86329be6f221213e7cb86
Fixes an issue where hotseatItems may not reflect the number of hotseat views in Taskbar. Entries in the array can be null (e.g. no predictions but there is space in the hotseat for them). If these are filtered out immediately, hotseatItems.length will correspond to the number of hotseat views.
Test: go/testedequals
Flag: EXEMPT bugfix
Fix: 379704910
Change-Id: I375d8152fccb6df5a9b783842ecf5dcedf6894c1
