perf: app config page scrollToItem 0

gkd-kit · Mar 8, 2024 · 0d09dd6 · 0d09dd6
1 parent a4c5532
commit 0d09dd6
Showing 1 changed file with 13 additions and 1 deletion.
diff --git a/app/src/main/kotlin/li/songe/gkd/ui/AppConfigPage.kt b/app/src/main/kotlin/li/songe/gkd/ui/AppConfigPage.kt
@@ -14,6 +14,7 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.layout.wrapContentSize
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.Sort
@@ -33,6 +34,7 @@ import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
@@ -77,6 +79,15 @@ fun AppConfigPage(appId: String) {
     val appGroups by vm.appGroupsFlow.collectAsState()
     val scrollBehavior = TopAppBarDefaults.enterAlwaysScrollBehavior()
     var expanded by remember { mutableStateOf(false) }
+    val listState = rememberLazyListState()
+    var isFirstVisit by remember { mutableStateOf(false) }
+    LaunchedEffect(globalGroups, appGroups) {
+        if (isFirstVisit) {
+            listState.scrollToItem(0)
+        } else {
+            isFirstVisit = true
+        }
+    }
     Scaffold(
         modifier = Modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
         topBar = {
@@ -152,7 +163,8 @@ fun AppConfigPage(appId: String) {
         },
     ) { contentPadding ->
         LazyColumn(
-            modifier = Modifier.padding(contentPadding)
+            modifier = Modifier.padding(contentPadding),
+            state = listState,
         ) {
             items(globalGroups) { g ->
                 val excludeData = remember(g.config?.exclude) {