ConversationListScreen: Implements pull-to-refresh

app/src/main/java/net/buzzert/kordophonedroid/ui/conversationlist/ConversationListScreen.kt

@@ -9,11 +9,16 @@ import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.*
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Info
 import androidx.compose.material.icons.rounded.Settings
+import androidx.compose.material.pullrefresh.PullRefreshIndicator
+import androidx.compose.material.pullrefresh.pullRefresh
+import androidx.compose.material.pullrefresh.rememberPullRefreshState
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.TextStyle
@@ -25,10 +30,10 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.hilt.navigation.compose.hiltViewModel
+import kotlinx.coroutines.launch
 import net.buzzert.kordophone.backend.model.Conversation
 import java.time.LocalDate
 import java.time.LocalDateTime
-import java.time.LocalTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Date
@@ -54,17 +59,31 @@ fun ConversationListScreen(
         conversations = conversations,
         onConversationSelected = onConversationSelected,
         onSettingsInvoked = onSettingsInvoked,
+        onRefresh = suspend { viewModel.refresh() }
     )
 }
 
 @Composable
+@OptIn(ExperimentalMaterialApi::class)
 fun ConversationListView(
     conversations: List<Conversation>,
     onConversationSelected: (conversationID: String) -> Unit,
     onSettingsInvoked: () -> Unit,
+    onRefresh: suspend () -> Unit,
 ) {
     val listState = rememberLazyListState()
 
+    val refreshScope = rememberCoroutineScope()
+    var refreshing by remember { mutableStateOf(false) }
+
+    fun refresh() = refreshScope.launch {
+        refreshing = true
+        onRefresh()
+        refreshing = false
+    }
+
+    val refreshState = rememberPullRefreshState(refreshing = refreshing, onRefresh = ::refresh)
+
     Scaffold(
         topBar = {
             TopAppBar(title = { Text("Conversations") }, actions = {
@@ -74,17 +93,30 @@ fun ConversationListView(
             })
         }
     ) {
-        LazyColumn(state = listState, modifier = Modifier.padding(it)) {
-            items(conversations) { conversation ->
-                ConversationListItem(
-                    name = conversation.formattedDisplayName(),
-                    id = conversation.guid,
-                    isUnread = conversation.unreadCount > 0,
-                    lastMessagePreview = conversation.lastMessagePreview ?: "",
-                    date = conversation.date,
-                    onClick = { onConversationSelected(conversation.guid) }
-                )
+        Box(Modifier.pullRefresh(refreshState)) {
+            LazyColumn(
+                state = listState,
+                modifier = Modifier
+                    .padding(it)
+                    .fillMaxSize()
+            ) {
+                items(conversations) { conversation ->
+                    ConversationListItem(
+                        name = conversation.formattedDisplayName(),
+                        id = conversation.guid,
+                        isUnread = conversation.unreadCount > 0,
+                        lastMessagePreview = conversation.lastMessagePreview ?: "",
+                        date = conversation.date,
+                        onClick = { onConversationSelected(conversation.guid) }
+                    )
+                }
             }
+
+            PullRefreshIndicator(
+                refreshing = refreshing,
+                state = refreshState,
+                modifier = Modifier.align(Alignment.TopCenter),
+            )
         }
     }
 }

app/src/main/java/net/buzzert/kordophonedroid/ui/conversationlist/ConversationListViewModel.kt

@@ -1,25 +1,21 @@
 package net.buzzert.kordophonedroid.ui.conversationlist
 
 import android.util.Log
-import androidx.compose.runtime.collectAsState
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import net.buzzert.kordophone.backend.model.Conversation
 import net.buzzert.kordophone.backend.server.Authentication
 import net.buzzert.kordophone.backend.server.ChatRepository
-import net.buzzert.kordophone.backend.server.REPO_LOG
 import net.buzzert.kordophone.backend.server.RetrofitAPIClient
 import net.buzzert.kordophonedroid.ui.shared.ServerConfigRepository
 import java.net.URL
 import javax.inject.Inject
-import kotlin.coroutines.CoroutineContext
 
 const val CL_VM_LOG: String = "ConversationListViewModel"
 
@@ -69,4 +65,8 @@ class ConversationListViewModel @Inject constructor(
             chatRepository.beginWatchingForUpdates(this)
         }
     }
+
+    suspend fun refresh() {
+        chatRepository.synchronize()
+    }
 }

app/src/main/res/xml/network_security_config.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <network-security-config>
     <domain-config cleartextTrafficPermitted="true">
-        <domain includeSubdomains="true">192.168.1.111</domain>
+        <domain includeSubdomains="true">192.168.1.123</domain>
         <domain includeSubdomains="true">tesseract.localdomain</domain>
         <domain includeSubdomains="true">buzzert.kordophone.nor</domain>
     </domain-config>