I think it should be a controller.

[Dorbmon]

For more detailed controll,I think a controller should be built.

[eric-taix]

I thought about adding a controller. What do you have in mind about the controller could control (except to control the page which can already be done by changing the current page index)?

[Dorbmon]

I thought about adding a controller. What do you have in mind about the controller could control (except to control the page which can already be done by changing the current page index)?

You had just told what I think it should have haha.

[Dorbmon]

And I think more events shold be exposed such as double click and long tap.

[eric-taix]

@Dorbmon Can you provide me use cases for double click and long tap? This is a bottom navigation bar and I can't find any real use cases...

[Dorbmon]

@Dorbmon Can you provide me use cases for double click and long tap? This is a bottom navigation bar and I can't find any real use cases...

Actually double click can be used to refresh the page.It is widely applied in many apps.
Long click can be used to call out a menu.

[CodingAleCR]

Another good idea for having a controller is selecting an item programmatically, like changing the selected item when something is done (for example, changing tabs to a list of items after adding a new item to said list).