换一换如果全部遍历过了则按钮置灰不让点击

@@ -14,6 +14,7 @@ const TAG = 'Zh_Single_Column-09'
 @Entry
 @Entry
 @Component
 @Component
 export struct ZhSingleColumn09 {
 export struct ZhSingleColumn09 {
+  @State fullyTraversed: boolean = false;
   @State private pageModel: PageModel = new PageModel();
   @State private pageModel: PageModel = new PageModel();
   @State pageId: string = '';
   @State pageId: string = '';
   @State pageName: string = '';
   @State pageName: string = '';
@@ -24,6 +25,7 @@ export struct ZhSingleColumn09 {
   @State loadImg: boolean = false;
   @State loadImg: boolean = false;
   @State compIndex: number = 0;
   @State compIndex: number = 0;
   @State currentOperDataListIndex: number = 0; //记录换一换点击次数
   @State currentOperDataListIndex: number = 0; //记录换一换点击次数
+  @State visitedIndices: Set<number> = new Set<number>();
 
 
   async aboutToAppear(): Promise<void> {
   async aboutToAppear(): Promise<void> {
     this.loadImg = await onlyWifiLoadImg();
     this.loadImg = await onlyWifiLoadImg();
@@ -77,12 +79,21 @@ export struct ZhSingleColumn09 {
   }
   }
 
 
   shuffleArray(array: ContentDTO[]) {
   shuffleArray(array: ContentDTO[]) {
-    for (let i = array.length - 1; i > 0; i--) {
+    for (let i = array.length - 1; i >= 0; i--) {
       const j = Math.floor(Math.random() * (i + 1));
       const j = Math.floor(Math.random() * (i + 1));
+      console.info(`cj2024 shuffleArray i = ${i} array.length = ${array.length}`)
+
+      // 记录被选中的索引 j
+      this.visitedIndices.add(j);
+      console.info(`cj2024 shuffleArray j = ${j} visitedIndices = ${this.visitedIndices.size}`)
       const tempArray = array[i];
       const tempArray = array[i];
       array[i] = array[j];
       array[i] = array[j];
       array[j] = tempArray
       array[j] = tempArray
     }
     }
+
+    // 检查是否所有元素都被遍历过
+    this.fullyTraversed = this.visitedIndices.size === array.length;
+
     return array
     return array
   }
   }
 
 
@@ -182,16 +193,14 @@ export struct ZhSingleColumn09 {
         Row() {
         Row() {
           Text('换一换')
           Text('换一换')
             .fontSize(14)
             .fontSize(14)
-            .fontColor(this.compDTO?.operDataList.length > 8 && this.currentOperDataListIndex > 0 ? 0xed2800 : 0xB0B0B0)
+            .fontColor(this.compDTO?.operDataList.length > 8 && !this.fullyTraversed ? 0xed2800 : 0xB0B0B0)
             .margin({ right: 4 })
             .margin({ right: 4 })
           Image(this.compDTO?.operDataList.length > 8 ? $r('app.media.icon_refresh') : $r('app.media.ic_refresh'))
           Image(this.compDTO?.operDataList.length > 8 ? $r('app.media.icon_refresh') : $r('app.media.ic_refresh'))
             .width(14)
             .width(14)
             .height(14)
             .height(14)
         }
         }
         .onClick(() => {
         .onClick(() => {
-          if (this.currentOperDataListIndex > 0) {
-            this.currentOperDataListIndex--
-          } else {
+          if (this.fullyTraversed) {
             return
             return
           }
           }
           if (this.compDTO?.operDataList.length > 8) {
           if (this.compDTO?.operDataList.length > 8) {