fix: can not load more

app/src/main/java/com/lsp/view/ui/compose/PostActivity.kt

@@ -5,6 +5,7 @@ import android.content.Intent
 import android.content.ServiceConnection
 import android.os.Bundle
 import android.os.IBinder
+import android.util.Log
 import android.widget.Toast
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
@@ -221,23 +222,22 @@ fun PostListScreen(
 
     LaunchedEffect(listState) {
 
-        snapshotFlow { listState.layoutInfo }.also{
-            it.collect{
-                if (lastScrollOffset<listState.firstVisibleItemScrollOffset && lastScrollPosition < listState.firstVisibleItemIndex){
+        snapshotFlow { listState.layoutInfo }.map { layoutInfo ->
+            if (lastScrollOffset < listState.firstVisibleItemScrollOffset && lastScrollPosition < listState.firstVisibleItemIndex) {
                 scrollDirectionState = -1
             }
-                if (lastScrollOffset > listState.firstVisibleItemScrollOffset && lastScrollPosition > listState.firstVisibleItemIndex){
+            if (lastScrollOffset > listState.firstVisibleItemScrollOffset && lastScrollPosition > listState.firstVisibleItemIndex) {
                 scrollDirectionState = 1
             }
             lastScrollOffset = listState.firstVisibleItemScrollOffset
             lastScrollPosition = listState.firstVisibleItemIndex
-            }
-        }.map { layoutInfo ->
+
             layoutInfo.visibleItemsInfo.lastOrNull()?.index == postList.lastIndex
         }.distinctUntilChanged().collect { reachedEnd ->
+            Log.d(TAG, reachedEnd.toString())
             //避免初次加载数据时，list未绘制导致被判断为到达底部
             if (reachedEnd && listState.firstVisibleItemIndex != 0) {
-                    withContext(Dispatchers.IO){
+                withContext(Dispatchers.IO) {
                     viewModel.fetchPost()
                 }
             }
@@ -280,7 +280,7 @@ fun PostListScreen(
         PullRefreshIndicator(refreshing, pullRefreshState,
             Modifier
                 .align(Alignment.TopCenter)
-                .padding(searchBarHeightSize+searchBarPadding))
+                .padding(searchBarHeightSize + searchBarPadding))
 
         AnimatedVisibility(
             visible = scrollDirectionState != -1,