[Qt-qml] Add Remove animations in ListView

[Adriano Rezende]

Hi everyone,

Is there a way to apply add/remove animations in the ListView when an
item is added or removed from a model?

The use cases most wanted by designers are:

1. When an item is added: All items below it will move down and the
new item will fade in in the new empty space
2. When an item is removed: The removed item will fade out, and all
items below it will move up to reorganize the list
3. When an item is moved: A sequential animation of (2) and (1) will take place

A big problem that raises in this scenario is how to keep model and
list in 'synchrony', since the model accepts synchronous operations
and the list will handle these operations asynchronously.
If the model does not have a freeze operation, to avoid other
add/remove requests while animating, at some point some animations in
the queue will be dropped since the model data/order does not match
anymore, unless you keep a model snapshot for each operation which
will result in a much more complex task.

Is there an official way to handle this kind of use case or a possible
workaround to implement this?


Cheers,
Adriano