添加了供应商列表和搜索物品分页功能

app/src/main/java/com/sw/inbound/ext/CommonExt.kt

@@ -3,6 +3,7 @@ package com.sw.inbound.ext
 import java.math.BigDecimal
 import java.math.RoundingMode
 import kotlin.math.pow
+import kotlin.math.round
 
 fun Float.toFormattedString(decimalPlaces: Int = 2): String {
     return when (this) {
@@ -32,12 +33,12 @@ fun Double.toSafeBigDecimal(): BigDecimal {
  */
 private fun Double.roundToDouble(decimalPlaces: Int): Double {
     val factor = 10.0.pow(decimalPlaces)
-    return kotlin.math.round(this * factor) / factor
+    return round(this * factor) / factor
 }
 
 private fun Float.roundToDouble(decimalPlaces: Int): Double {
     val factor = 10.0.pow(decimalPlaces)
-    return kotlin.math.round(this * factor) / factor
+    return round(this * factor) / factor
 }
 
 fun Float?.toSafeString(unitName: String?): String {
@@ -101,4 +102,4 @@ fun BigDecimal.toFormattedString(): String {
 
 fun Int.toFormattedString(): String {
     return this.toString()
-}
+}

app/src/main/java/com/sw/inbound/ui/page/PurchaseOrderScreen.kt

@@ -16,15 +16,21 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyRow
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Button
 import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -50,6 +56,9 @@ import com.sw.inbound.ui.theme.AppTypography.grayTextStyle
 import com.sw.inbound.ui.weight.BottomActionBar
 import com.sw.inbound.ui.weight.TopTitleBar
 import com.sw.inbound.viewmodel.PurchaseOrderViewModel
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import timber.log.Timber
 
 @Preview(
     widthDp = 1920,
@@ -66,11 +75,32 @@ fun PurchaseOrderScreen(
     viewModel: PurchaseOrderViewModel = hiltViewModel<PurchaseOrderViewModel>()
 ) {
     val products by viewModel.supplierList.collectAsState()
+    val lazyListState = rememberLazyListState()
+    val canLoadMore by viewModel.canLoadMore.collectAsState()
+    val isMoreLoading by viewModel.isMoreLoading.collectAsState()
+    var pageNum by remember { mutableIntStateOf(1) }
 
     LaunchedEffect(Unit) {
         viewModel.getOrderList()
     }
 
+    // 检测是否滚动到底部
+    LaunchedEffect(lazyListState) {
+        snapshotFlow { lazyListState.layoutInfo }
+            .map { layoutInfo ->
+                val lastVisibleItem = layoutInfo.visibleItemsInfo.lastOrNull()
+                lastVisibleItem?.index == layoutInfo.totalItemsCount - 1
+            }
+            .distinctUntilChanged()
+            .collect { reachedEnd ->
+                Timber.d("加载更多 reachedEnd = $reachedEnd, isMoreLoading = $isMoreLoading, canLoadMore = $canLoadMore")
+                if (reachedEnd && !isMoreLoading && canLoadMore) {
+                    pageNum++
+                    viewModel.getOrderList(pageNum = pageNum)
+                }
+            }
+    }
+
     Column {
         TopTitleBar()
         Box(
@@ -101,6 +131,7 @@ fun PurchaseOrderScreen(
                     LazyRow(
                         modifier = modifier
                             .padding(10.dp),
+                        state = lazyListState,
                         contentPadding = PaddingValues(16.dp),
                         horizontalArrangement = Arrangement.spacedBy(30.dp)
                     ) {
@@ -114,6 +145,19 @@ fun PurchaseOrderScreen(
                                 )
                             }
                         }
+
+                        if (isMoreLoading) {
+                            item {
+                                Box(
+                                    modifier = Modifier
+                                        .fillParentMaxHeight()
+                                        .padding(16.dp),
+                                    contentAlignment = Alignment.Center
+                                ) {
+                                    CircularProgressIndicator()
+                                }
+                            }
+                        }
                     }
                 }
             }

app/src/main/java/com/sw/inbound/ui/page/SelfProcurementScreen.kt

@@ -26,6 +26,10 @@ import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -34,6 +38,7 @@ import androidx.compose.ui.res.colorResource
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
@@ -238,6 +243,11 @@ fun ContentRightView(
 @Composable
 fun ProductIdentification(viewModel: SelfProcurementViewModel) {
     val searchResultList by viewModel.searchListItems.collectAsState()
+    // 需要搜索的信息
+    var searchInfo by remember { mutableStateOf("") }
+    var pageNum by remember { mutableIntStateOf(1) }
+    val isMoreLoading by viewModel.isMoreLoading.collectAsState()
+    val canLoadMore by viewModel.canLoadMore.collectAsState()
 
     Column(
         modifier = Modifier
@@ -252,10 +262,18 @@ fun ProductIdentification(viewModel: SelfProcurementViewModel) {
         ) {
             // 菜品识别
             IdentityView(list = searchResultList, showSearchView = true, onSearchClick = {
+                searchInfo = it
                 viewModel.searchGoodsInfoList(it)
             }, onOptionSelected = {
                 viewModel.updateSelectedItemWithSearch(it)
-            })
+            }, onLoadMore = {
+                Timber.d("加载更多 canLoadMore = $canLoadMore")
+                if (!canLoadMore) {
+                    return@IdentityView
+                }
+                pageNum++
+                viewModel.searchGoodsInfoList(goodsName = searchInfo, pageNo = pageNum)
+            }, isMoreLoading = isMoreLoading, canLoadMore = canLoadMore)
         }
         Spacer(modifier = Modifier.height(10.dp))
         Row(
@@ -615,12 +633,16 @@ private fun SelfProductEditView(
         ) {
             Spacer(modifier = Modifier.height(10.dp))
             Text(
-                modifier = Modifier.fillMaxWidth(),
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 30.dp),
                 textAlign = TextAlign.Center,
                 text = selectedItem!!.goodsNameStr,
+                maxLines = 1,
+                overflow = TextOverflow.Ellipsis,
                 style = AppTypography.black141428TextStyle.bold().withSize(30.sp)
             )
-            Spacer(modifier = Modifier.height(20.dp))
+            Spacer(modifier = Modifier.height(10.dp))
 
             RowInputLayout(
                 label = "仓库",
@@ -757,7 +779,7 @@ private fun SelfProductEditView(
                 )
             }
 
-            Spacer(modifier = Modifier.height(40.dp))
+            Spacer(modifier = Modifier.height(30.dp))
             Row(
                 horizontalArrangement = Arrangement.spacedBy(30.dp),
                 modifier = Modifier

app/src/main/java/com/sw/inbound/ui/weight/IdentityView.kt

@@ -27,6 +27,9 @@ fun IdentityView(
     showSearchView: Boolean = false,
     onSearchClick: (String) -> Unit = {},
     onOptionSelected: (SearchGoodsInfo.Record) -> Unit = {},
+    onLoadMore: (Int) -> Unit = {},
+    isMoreLoading: Boolean = false,
+    canLoadMore: Boolean = true
 ) {
     val context = LocalContext.current
     val lifecycleOwner = LocalLifecycleOwner.current
@@ -59,7 +62,10 @@ fun IdentityView(
                 modifier = Modifier
                     .height(64.dp)
                     .width(192.dp), options = list,
-                onOptionSelected = onOptionSelected
+                onOptionSelected = onOptionSelected,
+                onLoadMore = onLoadMore,
+                isMoreLoading = isMoreLoading,
+                canLoadMore = canLoadMore
             )
         } else {
             SingleSelectButtonGroup(

app/src/main/java/com/sw/inbound/ui/weight/SingleSelectButtonGroup.kt

@@ -11,13 +11,17 @@ import androidx.compose.foundation.layout.wrapContentWidth
 import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.foundation.lazy.grid.rememberLazyGridState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -31,6 +35,9 @@ import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import com.sw.inbound.model.response.SearchGoodsInfo
 import com.sw.inbound.ui.theme.AppTypography
+import kotlinx.coroutines.flow.distinctUntilChanged
+import kotlinx.coroutines.flow.map
+import timber.log.Timber
 
 
 @Preview(showBackground = true)
@@ -62,16 +69,43 @@ fun SingleSelectButtonGroup(
     onOptionSelected: (SearchGoodsInfo.Record) -> Unit,
     horizontalSpacing: Dp = 13.dp,
     verticalSpacing: Dp = 13.dp,
-    unSelectedTextStyle: TextStyle = AppTypography.gray96a0aaTextStyle
+    unSelectedTextStyle: TextStyle = AppTypography.gray96a0aaTextStyle,
+    onLoadMore: (Int) -> Unit = {},
+    isMoreLoading: Boolean = false,
+    canLoadMore: Boolean = true
 ) {
     val context = LocalContext.current
     var selectedOption by remember { mutableStateOf(options.firstOrNull() ?: "") }
 
+    val lazyGridState = rememberLazyGridState()
+//    val canLoadMore by viewModel.canLoadMore.collectAsState()
+//    val isMoreLoading by viewModel.isMoreLoading.collectAsState()
+    var pageNum by remember { mutableIntStateOf(1) }
+
+    // 检测是否滚动到底部
+    LaunchedEffect(lazyGridState) {
+        snapshotFlow { lazyGridState.layoutInfo }
+            .map { layoutInfo ->
+                val lastVisibleItem = layoutInfo.visibleItemsInfo.lastOrNull()
+                lastVisibleItem?.index == layoutInfo.totalItemsCount - 1
+            }
+            .distinctUntilChanged()
+            .collect { reachedEnd ->
+                Timber.d("加载更多 reachedEnd = $reachedEnd, isMoreLoading = $isMoreLoading, canLoadMore = $canLoadMore")
+                if (reachedEnd && !isMoreLoading && canLoadMore) {
+                    pageNum++
+                    onLoadMore(pageNum)
+                }
+            }
+    }
+
     // 定义颜色
     val selectedColor = Color(0xFFD9E3F9)
     val unselectedColor = Color(0xFFDCDCF0)
 
+
     LazyVerticalGrid(
+        state = lazyGridState,
         columns = GridCells.Fixed(2), // 每行2列
         modifier = Modifier
             .fillMaxWidth(),

app/src/main/java/com/sw/inbound/viewmodel/BaseViewModel.kt

@@ -16,6 +16,10 @@ import java.io.IOException
 abstract class BaseViewModel(
     private val repository: RemoteRepository
 ) : ViewModel() {
+
+    /**
+     * 带进度条的请求
+     */
     protected fun launchWithLoading(block: suspend () -> Unit) {
         viewModelScope.launch {
             try {
@@ -30,6 +34,9 @@ abstract class BaseViewModel(
         }
     }
 
+    /**
+     * 不带进度条的请求
+     */
     protected fun launch(block: suspend () -> Unit) {
         viewModelScope.launch() {
             try {

app/src/main/java/com/sw/inbound/viewmodel/PurchaseOrderViewModel.kt

@@ -21,17 +21,45 @@ class PurchaseOrderViewModel @Inject constructor(
     private val _supplierList = MutableStateFlow<List<SupplierInfo?>>(emptyList())
     val supplierList: StateFlow<List<SupplierInfo?>> = _supplierList
 
+    /**
+     * 是否可以加载更多
+     */
+    private val _canLoadMore = MutableStateFlow(true)
+    val canLoadMore: StateFlow<Boolean> = _canLoadMore
 
-    fun getOrderList(pageNum: Int = 0, pageSize: Int = 20) {
+    /**
-        launchWithLoading {
+     * 是否显示进度条
-            val response = repository.getReceiveList(pageNum, pageSize)
+     */
-            if (response.isSuccess()) {
+    private val _isMoreLoading = MutableStateFlow(false)
-                response.data?.records?.let {
+    val isMoreLoading = _isMoreLoading
-                    _supplierList.value = it
+
+
+    /**
+     * 获取采购订单-供应商列表
+     */
+    fun getOrderList(pageNum: Int = 1, pageSize: Int = 5) {
+        if (pageNum != 1) {
+            launch {
+                _isMoreLoading.value = true
+                val response = repository.getReceiveList(pageNum, pageSize)
+                _isMoreLoading.value = false
+                if (response.isSuccess()) {
+                    response.data?.records?.let {
+                        _canLoadMore.value = it.size >= pageSize
+                        _supplierList.value = _supplierList.value + it
+                    }
+                }
+            }
+        } else {
+            launchWithLoading {
+                val response = repository.getReceiveList(pageNum, pageSize)
+                if (response.isSuccess()) {
+                    response.data?.records?.let {
+                        _supplierList.value = it
+                    }
                 }
             }
         }
     }
-
 }
 

app/src/main/java/com/sw/inbound/viewmodel/SelfProcurementViewModel.kt

@@ -77,6 +77,18 @@ class SelfProcurementViewModel @Inject constructor(
      */
     private val _amountUserInput = MutableStateFlow<Boolean>(false)
 
+    /**
+     * 是否可以加载更多
+     */
+    private val _canLoadMore = MutableStateFlow(true)
+    val canLoadMore: StateFlow<Boolean> = _canLoadMore
+
+    /**
+     * 是否显示进度条
+     */
+    private val _isMoreLoading = MutableStateFlow(false)
+    val isMoreLoading = _isMoreLoading
+
     /**
      * 更新全局仓库
      */
@@ -237,15 +249,24 @@ class SelfProcurementViewModel @Inject constructor(
 
     fun searchGoodsInfoList(
         goodsName: String,
-        pageNo: Int = 0,
+        pageNo: Int = 1,
         pageSize: Int = 10
     ) {
         launch {
+            if (pageNo > 1) {
+                _isMoreLoading.value = true
+            }
             val response = repository.searchGoodsInfoList(goodsName, pageNo, pageSize)
+            _isMoreLoading.value = false
             if (response.isSuccess()) {
                 val data = response.data
-                if (data != null) {
+                data?.records?.let {
-                    _searchListItems.value = data.records ?: emptyList<SearchGoodsInfo.Record>()
+                    _canLoadMore.value = data.records.size >= pageSize
+                    if (pageNo > 1) {
+                        _searchListItems.value = _searchListItems.value + data.records
+                    } else {
+                        _searchListItems.value = data.records
+                    }
                 }
             } else {
                 _searchListItems.value = emptyList<SearchGoodsInfo.Record>()