StatusBarView: Ensure to not overload in/out animations

- Post animate call in main thread, thanks @David96
- Handle animation checking current view visibility

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Signed-off-by: David L.-W. <xD_e-mail@gmx.de>
Automatic Translation Import

Change-Id: Ia241eeb58ba4e2726f10c5250ffaae9e5af9de52
ExpandHelper: Improve one finger expanding forced handling

Instead of force returning false if view is null, setup a boolean
to force it with custom views like hover. Cherry-picked from CM.

Also request disallow intercept on drag started.

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
StatusBarView: Avoid unnecessary calls to mHandler.post()

Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
Signed-off-by: David L.-W. <xD_e-mail@gmx.de>