Add lazy option for createBottomTabNavigator

[brentvatne]

We should support disabling "lazy" if people want to. See: #4254

[karanmartian]

now that the commit is made, will the lazy option be available with a new release?

[djendacott]

Any update on this? Lazy being forced to true is making tab navigation too slow.

[satya164]

Any update on this? Lazy being forced to true is making tab navigation too slow.

It's already released. Also lazy should make it fast since only 1 tab is rendered on startup, not slow. You're probably seeing this, which is a separate issue: #4412

[djendacott]

@satya164 Are you certain disabling lazy is possible? I believe createBottomTabNavigator does not allow the option to set lazy to false (preload all tabs).

Our issue is navigating between tabs without preloading is slow because our tab content is quite heavy, I'm currently seeing no solution but to remain with the deprecated tabNavigator purely so we can disable lazy.

EDIT: On further digging I see this change has been implemented, but just hasn't been released yet. Hoping it will be out soon. Thanks!

[Bobby-Lux]

Has this change been released yet? I don't see anything in the documentation about being able to set lazy to false with createBottomTabNavigator. I'd like to be able to update from TabNavigator to createBottomTabNavigator, but need to disable lazy loading.

[brentvatne]

It has been released, docs need to be updated