警告：NavController.setNavigatorProvider 只能从同一个库组中调用 (groupId=androidx.navigation)

Question

I have created a new project and met with this warning while setting up bottom-tab navigation.

Gradle info

• AndroidStudio: 4.1.2
• compileSdkVersion: 29
• Navigation dependencies:
  • implementation "androidx.navigation:navigation-fragment-ktx:2.3.1"
  • implementation "androidx.navigation:navigation-ui-ktx:2.3.1"

My Code:

private fun setupBottomNavigationBar() {
    val navController = findNavController(R.id.nav_host_fragment)

    supportFragmentManager.findFragmentById(R.id.nav_host_fragment)?.let {
        val navigator = KeepStateNavigator(
            this,
            it.childFragmentManager,
            R.id.nav_host_fragment
        )

        // This line gives me warning
        navController.navigatorProvider += navigator
      
    }
}

Tried solution:

// Solution 1
@SuppressLint("RestrictedApi")
private fun setupBottomNavigationBar() {


// Solution 2
// noinspection RestrictedApi
navController.navigatorProvider += navigator

Both are worked but I still don't know why I am getting this error. Is there anything anything else that I should know that might create the problem in future?

Any help is appreciated in advance!

Answer 1

You might avoid warning using the below code:

navController.navigatorProvider.addNavigator(navigator)