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root/detail/userShare.vue

@@ -7,11 +7,12 @@
 							:background="background" 
 							:backIconName="fromShare ? 'home' : 'arrow-left'"
 		></u-navbar>
+		<!-- @touchstart="onTouchStart"
+      @touchmove="onTouchMove"
+      @touchend="onTouchEnd" -->
 		<view 
       class="scroll-container"
-      @touchstart="onTouchStart"
-      @touchmove="onTouchMove"
-      @touchend="onTouchEnd"
+      
     >
 			<view class="background-container" 
 				style="width: 100%;overflow: hidden;"
@@ -337,17 +338,25 @@ export default {
 			
 			if (e.touches && e.touches.length > 0) {
 				this.moveY = e.touches[0].pageY;
-				const query = uni.createSelectorQuery().in(this);
-				query.select('.scroll-container').boundingClientRect(data => {
-					if (data) {
-						const scrollTop = data.scrollTop || 0;
-						if (scrollTop <= 0 && this.moveY > this.startY) {
-							const pullDistance = this.moveY - this.startY;
-							this.backgroundScale++;
-							this.mtScroll++;
+				const moveDistance = this.moveY - this.startY;
+				
+				// 只有向下移动（moveDistance > 0）时才触发下拉效果
+				if (moveDistance > 0) {
+					const query = uni.createSelectorQuery().in(this);
+					query.select('.scroll-container').boundingClientRect(data => {
+						if (data) {
+							const scrollTop = data.scrollTop || 0;
+							// 只有在滚动到顶部且向下拉动时才执行缩放
+							if (scrollTop <= 0) {
+								// 根据移动距离计算缩放值，使效果更自然
+								// 可以调整 divisor（这里是80）来改变缩放的灵敏度
+								const scaleValue = Math.min(moveDistance / 40, 5); // 限制最大缩放值
+								this.backgroundScale = scaleValue;
+								this.mtScroll = scaleValue;
+							}
 						}
-					}
-				}).exec();
+					}).exec();
+				}
 			}
 		},