fix: 图集替换ir单方案，修改了部分，方案还有问题

+import display from '@ohos.display';
+
+const TAG = 'GalleryImage'
+
+@Component
+export struct GalleryImage {
+  private url: string = "";
+  private index: number = 0;
+  @State downLoadEnable: boolean = true;
+  @Link isScaling: boolean
+  @State showLoading: boolean = false;
+  @State rotateAngle: number = 0;
+  @State showError: boolean = false;
+  @State scaleValue: number = 1;
+  @State pinchValue: number = 1;
+  @State pinchX: number | string = '50%';
+  @State pinchY: number | string = '50%';
+  private panOption: PanGestureOptions = new PanGestureOptions({ direction: PanDirection.None, fingers: 1 })
+  @State offsetX: number = 0
+  @State offsetY: number = 0
+  @State positionX: number = 0
+  @State positionY: number = 0
+  private imageWith: number = 0;
+  @State sizeValue: number = 0;
+
+  //alt app.media.picture_loading 设计稿尺寸
+  @State imageWidth:string | number = 167
+
+  aboutToAppear(): void {
+    this.showLoading = true;
+    this.downLoadEnable = false;
+    console.info(TAG);
+  }
+
+  aboutToDisAppear(): void {
+    console.info("");
+  }
+
+  aboutToReuse(): void {
+    console.info("");
+  }
+
+  build() {
+    Column() {
+      Image(this.url)
+        .width(this.imageWidth)
+        .height("100%")
+        .objectFit(ImageFit.Contain)//todo 加载失败时占位图没隐藏
+        .alt($r("app.media.datail_imageLoading_w"))
+        .interpolation(ImageInterpolation.High)
+        .onComplete(msg => {
+          if (msg) {
+            this.imageWidth = '100%'
+            console.info(TAG, "index:" + this.index + ", loadingStatus:" + msg.loadingStatus)
+            // 图片数据加载成功
+            if (msg.loadingStatus === 0) {
+              this.showLoading = true;
+              this.downLoadEnable = false;
+            } else if (msg.loadingStatus === 1) {
+              // 图片数据解码成功
+              this.showLoading = false;
+              this.downLoadEnable = true;
+              this.imageWith = px2vp(display.getDefaultDisplaySync().width)
+            }
+          }
+        })
+        .onError(() => {
+          console.info(TAG, "图片加载异常")
+          this.showLoading = false;
+          this.showError = true;
+        })// 在组件上绑定缩放比例，可以通过修改缩放比例来实现组件的缩小或者放大
+        .scale({
+          x: this.scaleValue,
+          y: this.scaleValue,
+          z: 1,
+          centerX: this.pinchX,
+          centerY: this.pinchY
+        })// 以组件左上角为坐标原点进行移动
+        .translate({ x: this.offsetX, y: this.offsetY, z: 0 })
+        .gesture(
+          GestureGroup(GestureMode.Parallel,
+            // 两指或以上的捏合手势
+            PinchGesture({ fingers: 2 })
+              .onActionStart(() => {
+                console.info(TAG, 'Pinch start');
+              })// 当捏合手势触发时，可以通过回调函数获取缩放比例，从而修改组件的缩放比例
+              .onActionUpdate((event: GestureEvent) => {
+                const scaleValue = this.pinchValue * event.scale;
+                if (scaleValue <= 3 && scaleValue >= 0.8) {
+                  this.scaleValue = scaleValue;
+                  this.pinchX = event.pinchCenterX;
+                  this.pinchY = event.pinchCenterY;
+                }
+              })
+              .onActionEnd(() => {
+                this.pinchValue = this.scaleValue;
+                console.info(TAG, 'Pinch end');
+                if (this.pinchValue > 1) {
+                  this.panOption.setDirection(PanDirection.Horizontal)
+                  this.isScaling = true;
+                } else {
+                  this.panOption.setDirection(PanDirection.None)
+                  this.isScaling = false;
+                }
+              }),
+            // 绑定count为1的TapGesture
+            TapGesture({ count: 1 })
+              .onAction(() => {
+              }),
+            // 绑定count为2的TapGesture
+            TapGesture({ count: 2 })
+              .onAction(() => {
+                console.info(TAG, '双击 start')
+                animateTo({
+                  duration: 400,
+                }, () => {
+                  this.scaleValue = 1;
+                  this.pinchX = '50%';
+                  this.pinchY = '50%';
+                  this.pinchValue = this.scaleValue;
+                  this.offsetX = 0;
+                  this.offsetY = 0;
+                  this.positionX = 0;
+                  this.positionY = 0;
+                  this.panOption.setDirection(PanDirection.None);
+                  this.isScaling = false;
+                })
+              }),
+            PanGesture(this.panOption)
+              .onActionStart(() => {
+                console.info(TAG, 'Pan start')
+              })
+              .onActionUpdate((event?: GestureEvent) => {
+                if (event) {
+                  if (this.scaleValue > 1) {
+                    this.offsetX = this.positionX + event.offsetX
+                    this.offsetY = this.positionY + event.offsetY
+                    this.sizeValue = this.imageWith
+                  }
+                }
+              })
+              .onActionEnd(() => {
+                this.positionX = this.offsetX
+                this.positionY = this.offsetY
+                console.info(TAG, 'Pan end')
+              })
+          ))
+    }
+    .width('100%')
+    .height('100%')
+    .justifyContent(FlexAlign.Center)
+  }
+}
\ No newline at end of file

@@ -114,8 +114,16 @@ export struct MultiPictureDetailItemComponent {
   calcImageDefaultSize(imageWHRatio: number, size: window.Size): image.Size {
     let width = 0
     let height = 0;
+    // width = size.width;
+    // height = size.width / imageWHRatio;
+    if (imageWHRatio > size.width / size.height) {
+      // 图片宽高比大于屏幕宽高比，图片默认以屏幕宽度进行显示
       width = size.width;
       height = size.width / imageWHRatio;
+    } else {
+      height = size.height;
+      width = size.height * imageWHRatio;
+    }
     return { width: width, height: height };
   }
 
@@ -179,7 +187,9 @@ export struct MultiPictureDetailItemComponent {
               Image(this.imagePixelMap || 'app.media.datail_imageLoading_w')// TODO：知识点：宽高只根据其尺寸设置一个，通过保持宽高比来设置另一个属性
                 .alt($r('app.media.datail_imageLoading_w'))
                 .width(this.imageWidth)
+                .aspectRatio(this.imageWHRatio)
                 .objectFit(ImageFit.Cover)// TODO：知识点：保持宽高比进行缩放，可以超出父组件，以便实现多图切换的增强功能
+                .autoResize(false)
                 .interpolation(ImageInterpolation.High)
                 .autoResize(false)
                 .transform(this.matrix)// TODO：知识点：通过matrix控制图片的缩放
@@ -229,11 +239,6 @@ export struct MultiPictureDetailItemComponent {
     .gesture(
       GestureGroup(
         GestureMode.Exclusive,
-        // 单击返回上一层
-        // TapGesture({ count: 1 })
-        //   .onAction(() => {
-        //     router.back()
-        //   }),
         // TODO：知识点：双击切换图片大小
         TapGesture({ count: 2 })
           .onAction(() => {
@@ -315,9 +320,10 @@ export struct MultiPictureDetailItemComponent {
             }
             this.imageScaleInfo.stash();
           }),
-        // // TODO：知识点：滑动图片
+        // TODO：知识点：滑动图片
         // PanGesture({ fingers: 1 })// TODO：需求：默认大小下左右滑动应当是切换图片
         //   .onActionUpdate((event: GestureEvent) => {
+        //     console.log(TAG, "PanGesture", JSON.stringify(event))
         //     if (this.imageScaleInfo.scaleValue === this.imageScaleInfo.defaultScaleValue) {
         //       // 默认大小下不允许移动
         //       return;

@@ -100,6 +100,7 @@ export struct MultiPictureListPage {
         .vertical(false)
         .autoPlay(false)
         .loop(false)
+        .disableSwipe(!this.isEnableSwipe)
         .effectMode(EdgeEffect.None)
         .cachedCount(3)
         .indicator(false)

+import {
+  PhotoListBean,
+} from 'wdBean';
+
+export class MyDataSource implements IDataSource {
+
+  private list: PhotoListBean[] = []
+
+  // private listener: DataChangeListener
+
+  constructor(list: PhotoListBean[]) {
+    this.list = list
+  }
+
+  totalCount(): number {
+    return this.list.length
+  }
+
+  getData(index: number): PhotoListBean {
+    return this.list[index]
+  }
+
+  getList(): PhotoListBean[] {
+    return this.list;
+  }
+
+  registerDataChangeListener(listener: DataChangeListener): void {
+    // this.listener = listener
+  }
+
+  unregisterDataChangeListener() {
+  }
+}
\ No newline at end of file

@@ -337,6 +337,7 @@ export struct MultiPictureDetailPageComponent {
     .indicator(false)
     .displayCount(1)
     .loop(false)
+    .disableSwipe(!this.isEnableSwipe)
     .effectMode(EdgeEffect.Spring)
     .id('e_swiper_content')
     .alignRules({