When dragging between workspaces in rapid succession, the canceling of the
original long-press timer wasn't being triggered correctly. (When the timer
fires, it might read an invalid Workspace.allowLongPress() value.)
This patchset correctly cancels any pending long-press timers once a desktop
scroll begins, and we don't need to rely on the allowLongPress() value.
This change adds nearby-area searching when dragging desktop items into already-occupied cells. This approach tries harder to find a matching area, instead of strictly rejecting invalid moves.
We also draw a "snag" during the drag to show where an item would be dropped, but only if we would drop into an alternative cell. This gives users better feedback about where things will drop.
http://b/issue?id=1634887
Romain Guy
Jeff Sharkey
The Android Open Source Project