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refactor: improve `LazyColumn` auto-scroll behavior

pull/1147/head
andrekir 2024-07-13 08:00:17 -03:00
rodzic b850805ce3
commit 4fe49a45dc
1 zmienionych plików z 8 dodań i 3 usunięć
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11
app/src/main/java/com/geeksville/mesh/ui/DebugFragment.kt
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@ -20,7 +20,9 @@ import androidx.compose.material.Surface
import androidx.compose.material.Text import androidx.compose.material.Text
import androidx.compose.runtime.Composable import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.derivedStateOf
import androidx.compose.runtime.getValue import androidx.compose.runtime.getValue
import androidx.compose.runtime.remember
import androidx.compose.ui.Modifier import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color import androidx.compose.ui.graphics.Color
import androidx.compose.ui.res.colorResource import androidx.compose.ui.res.colorResource
@ -79,9 +81,12 @@ class DebugFragment : Fragment() {
val listState = rememberLazyListState() val listState = rememberLazyListState()
val logs by model.meshLog.collectAsStateWithLifecycle() val logs by model.meshLog.collectAsStateWithLifecycle()
LaunchedEffect(logs) { val shouldAutoScroll by remember { derivedStateOf { listState.firstVisibleItemIndex < 3 } }
if (listState.firstVisibleItemIndex < 3 && !listState.isScrollInProgress) { if (shouldAutoScroll) {
listState.scrollToItem(0) LaunchedEffect(logs) {
if (!listState.isScrollInProgress) {
listState.scrollToItem(0)
}
} }
} }