index in navigationState is ignored

[jurisjansons]

Current behavior

index parameter in navigationState is ignored. You can swipe and change tab even when index is set to constant value.

Expected behavior

TabView is showing tab with given index

as from documentation:

onIndexChange (required)
Callback which is called on tab change, receives the index of the new tab as argument. The navigation state needs to be updated when it's called, otherwise the change is dropped.

so, preventing index chande sould result in preventing tab switch

Reproduction

https://snack.expo.dev/CV5lqoORhN

Platform

• Android
• iOS
• Web
• Windows
• MacOS

Environment

package	version
react-native-tab-view	3.2.1
react-native-pager-view	5.4.24
react-native	0.69.5
expo	46.0.0
node	14.17.2
npm or yarn	8.11.0

[github-actions]

The versions mentioned in the issue for the following packages differ from the latest versions on npm:

• react-native-pager-view (found: 5.4.24, latest: 6.0.0)
• react-native (found: 0.69.5, latest: 0.70.1)
• expo (found: 46.0.0, latest: 46.0.14)

Can you verify that the issue still exists after upgrading to the latest versions of these packages?

[satya164]

Yeah, this is a bug. PRs welcome to fix it!