更新UI

keyBoard/Class/Shop/VC/KBShopVC.m

@@ -226,6 +226,7 @@ static const CGFloat JXheightForHeaderInSection = 50;
     // 不要渐变：小于阈值 alpha=0，达到阈值(吸顶)后 alpha=1
     BOOL shouldWhite = (thresholdDistance > 0.0 && scrollView.contentOffset.y >= (thresholdDistance - 0.5));
     self.naviBGView.alpha = shouldWhite ? 1.0 : 0.0;
+    self.userHeaderView.alpha = shouldWhite ? 0 : 1.0;
 
     // 分类条背景：未吸顶时透明，吸顶后白色
     if (shouldWhite != self.categoryIsWhite) {
@@ -234,6 +235,7 @@ static const CGFloat JXheightForHeaderInSection = 50;
         self.categoryView.backgroundColor = bg;
         // 内部 collectionView 也同步，避免出现条纹底色
         self.categoryView.collectionView.backgroundColor = bg;
+        self.naviBGView.backgroundColor = bg;
     }
 }