fix:修改常量为单独文件

entry/src/main/ets/market-ranking/MarketRanking.ets

@@ -1,6 +1,7 @@
 import { PeriodRange, RankItem, TabMetric } from './MarketRankingTypes';
 import { MarketRankingModel } from './MarketRankingModel';
 import { formatGreatNumber, formatPercent, riseFallColor } from '../common/NumberFormat';
+import { PERIOD_RANGES, TAB_METRICS } from './MarketRankingConstant';
 
 const NORMAL_SIZE = 3;
 const MAX_SIZE = 5;
@@ -15,9 +16,9 @@ export struct MarketRanking {
 
   // 第三列标题随 Tab 变化
   private thirdColumnTitle(): string {
-    const metric = this.vm.tabMetrics[this.primaryIdx];
+    const metric = TAB_METRICS[this.primaryIdx];
     if (metric.hasChildren) {
-      return `${this.vm.periodRanges[this.secondaryIdx].label}${metric.label}`;
+      return `${PERIOD_RANGES[this.secondaryIdx].label}${metric.label}`;
     }
     if (metric.id === 'rise' || metric.id === 'fall') {
       return '涨跌幅';
@@ -27,13 +28,13 @@ export struct MarketRanking {
 
   // 成交额/日增仓列用中性色，其余按涨跌上色
   private isNeutralColumn(): boolean {
-    const id = this.vm.tabMetrics[this.primaryIdx].id;
+    const id = TAB_METRICS[this.primaryIdx].id;
     return id === 'turnOver' || id === 'increPosit';
   }
 
   // 第三列展示值：按当前一级 Tab 从对应原始字段取值并格式化
   private thirdColumnValue(item: RankItem): string {
-    const id = this.vm.tabMetrics[this.primaryIdx].id;
+    const id = TAB_METRICS[this.primaryIdx].id;
     if (id === 'turnOver') {
       return formatGreatNumber(item.turnover);
     }
@@ -51,7 +52,7 @@ export struct MarketRanking {
     if (this.isNeutralColumn()) {
       return $r('app.color.text_primary');
     }
-    const id = this.vm.tabMetrics[this.primaryIdx].id;
+    const id = TAB_METRICS[this.primaryIdx].id;
     const raw = id === 'riseSpeed' || id === 'fallSpeed' ? item.chg_speed : item.price_chg;
     return riseFallColor(raw);
   }
@@ -83,7 +84,7 @@ export struct MarketRanking {
       // 一级 Tab（胶囊按钮，可横向滚动）
       Scroll() {
         Row({ space: 8 }) {
-          ForEach(this.vm.tabMetrics, (metric: TabMetric, index: number) => {
+          ForEach(TAB_METRICS, (metric: TabMetric, index: number) => {
             Text(metric.label)
               .fontSize(14)
               .fontWeight(this.primaryIdx === index ? FontWeight.Bold : FontWeight.Normal)
@@ -108,9 +109,9 @@ export struct MarketRanking {
       .align(Alignment.Start)
 
       // 二级 Tab（仅涨速/跌速出现，右对齐文字 + 分隔线）
-      if (this.vm.tabMetrics[this.primaryIdx].hasChildren) {
+      if (TAB_METRICS[this.primaryIdx].hasChildren) {
         Row() {
-          ForEach(this.vm.periodRanges, (period: PeriodRange, index: number) => {
+          ForEach(PERIOD_RANGES, (period: PeriodRange, index: number) => {
             if (index !== 0) {
               Divider()
                 .vertical(true)

entry/src/main/ets/market-ranking/MarketRankingModel.ets

@@ -6,8 +6,8 @@ import { MOCK_RANK_LISTS, MOCK_SPEED_LISTS } from './MarketRankingMock';
 // 状态持有 + 编排类；
 @Observed
 export class MarketRankingModel {
-  tabMetrics: TabMetric[] = TAB_METRICS;
-  periodRanges: PeriodRange[] = PERIOD_RANGES;
+  private tabMetrics: TabMetric[] = TAB_METRICS;
+  private periodRanges: PeriodRange[] = PERIOD_RANGES;
   rankLists: RankItem[][] = MOCK_RANK_LISTS;
   speedLists: RankItem[][][] = MOCK_SPEED_LISTS;