PullToRefreshState

import androidx.compose.foundation.layout.Box import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.foundation.layout.fillMaxWidth import androidx.compose.foundation.layout.padding import androidx.compose.foundation.lazy.LazyColumn import androidx.compose.material.icons.Icons import androidx.compose.material.icons.filled.Refresh import androidx.compose.material3.Icon import androidx.compose.material3.IconButton import androidx.compose.material3.LinearProgressIndicator import androidx.compose.material3.ListItem import androidx.compose.material3.Scaffold import androidx.compose.material3.Text import androidx.compose.material3.TopAppBar import androidx.compose.material3.pulltorefresh.PullToRefreshState import androidx.compose.material3.pulltorefresh.pullToRefresh import androidx.compose.material3.pulltorefresh.rememberPullToRefreshState import androidx.compose.runtime.mutableIntStateOf import androidx.compose.runtime.mutableStateOf import androidx.compose.runtime.remember import androidx.compose.runtime.rememberCoroutineScope import androidx.compose.ui.Modifier var itemCount by remember { mutableIntStateOf(15) } var isRefreshing by remember { mutableStateOf(false) } val state = rememberPullToRefreshState() val coroutineScope = rememberCoroutineScope() val onRefresh: () -> Unit = {  isRefreshing = true  coroutineScope.launch {  // fetch something  delay(5000)  itemCount += 5  isRefreshing = false  } } Scaffold(  modifier =  Modifier.pullToRefresh(  state = state,  isRefreshing = isRefreshing,  onRefresh = onRefresh,  ),  topBar = {  TopAppBar(  title = { Text("TopAppBar") },  // Provide an accessible alternative to trigger refresh.  actions = {  IconButton(onClick = onRefresh) {  Icon(Icons.Filled.Refresh, "Trigger Refresh")  }  },  )  }, ) {  Box(Modifier.padding(it)) {  LazyColumn(Modifier.fillMaxSize()) {  if (!isRefreshing) {  items(itemCount) { ListItem({ Text(text = "Item ${itemCount - it}") }) }  }  }  if (isRefreshing) {  LinearProgressIndicator(modifier = Modifier.fillMaxWidth())  } else {  LinearProgressIndicator(  modifier = Modifier.fillMaxWidth(),  progress = { state.distanceFraction },  )  }  } }