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MainActivity.kt
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MainActivity.kt
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@file:OptIn(ExperimentalMaterialApi::class, ExperimentalMaterialNavigationApi::class)
package com.kirshboim.accompanist.crash
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.compose.material.ExperimentalMaterialApi
import androidx.compose.material.ModalBottomSheetValue
import androidx.compose.material.rememberModalBottomSheetState
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.MutableState
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.rememberNavController
import com.google.accompanist.navigation.material.BottomSheetNavigator
import com.google.accompanist.navigation.material.ExperimentalMaterialNavigationApi
import com.google.accompanist.navigation.material.ModalBottomSheetLayout
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContent {
val stateChangeEnabled = remember { mutableStateOf(false) }
val sheetState = rememberModalBottomSheetState(stateChangeEnabled)
val bottomSheetNavigator = remember(sheetState) { BottomSheetNavigator(sheetState) }
val navController = rememberNavController(bottomSheetNavigator)
val backStackEntry =
with(navController) { currentBackStackEntryFlow.collectAsState(currentBackStackEntry) }
LaunchedEffect(backStackEntry.value) { stateChangeEnabled.value = false }
ModalBottomSheetLayout(bottomSheetNavigator) {
NavHost(navController = navController, startDestination = "xyz") {
composable("xyz") {}
}
}
}
}
}
// Inline this function to work around the crash.
@Composable
private fun rememberModalBottomSheetState(stateChangeEnabled: MutableState<Boolean>) =
rememberModalBottomSheetState(
initialValue = ModalBottomSheetValue.Hidden,
confirmStateChange = { stateChangeEnabled.value }
)