Replace DragView bitmap with drawable
This is a preliminary work for local color extraction. In order to
apply local colors extracted from wallpaper to AppWidgetHostView
during drag, we need to hold a reference of the dragging
AppWidgetHostView.
In this CL, the following changes are made:
1. Instead of using bitmap image directly for icons, folders, shortcuts,
legacy widget drawable preview, a BitmapDrawable wrapper is
introduced.
2. Introduce a WidgetHostViewDraggableDrawable which draws
LauncherAppWidgetHostView directly to canvas. No more bitmap
generation overhead.
3. Remove drag outline from the drag logic because this will be replaced
by a new grid color hint UI: https://screenshot.googleplex.com/7jBEVeuxFecFKKT.png
Test: Add: add widgets, shortcuts from widgets tray.
add icons from all apps.
create folder.
Drag: drag existing widgets, shortcuts, folders and icons around
Bug: 182282587
Change-Id: Ia45ff756ea5bb80cf0761f0727a9453d50c204c0
12 files changed
