18497图集详情页，图片上滑或下滑，返回上一页面，页面退出效果明显，参考视频中安卓退出效果

@@ -24,6 +24,13 @@ export struct MultiPictureListPage {
   @Provide topSafeHeight: number = AppStorage.get<number>('topSafeHeight') || 0
   // @Provide bgc: Color = Color.White;
   @Provide duration: number = 0
+  @State noAnimation: boolean = true
+
+  pageTransition() {
+    // PageTransitionEnter({ duration: this.noAnimation ? 0 : 300 })
+    PageTransitionExit({ duration:  !this.noAnimation ? 0 : 300 })
+  }
+
 
   aboutToAppear(): void {
     //获取宽高尺寸
@@ -65,6 +72,7 @@ export struct MultiPictureListPage {
       })
       .onClick(() => {
         this.onBack();
+        this.noAnimation = false
         router.back();
       })
       .id("backImg")