朋友圈滑动顶部优化

SLAiELTS/SLAiELTS/ViewControllers/Moments/MomentsVc/SLMomentsVc.m

@@ -360,7 +360,7 @@ static CGFloat textFieldH = 56;
     UIColor * color = [UIColor whiteColor];
     CGFloat offsetY = scrollView.contentOffset.y;
     CGFloat alpha = 1.0;
-    if (offsetY >= 100) {
+    if (offsetY >= 2) {
         alpha = MIN(1, 1 - ((2 + kNavBarHeight - offsetY) / kNavBarHeight));
         self.navigationBar.backgroundColor = [color colorWithAlphaComponent:alpha];
         self.navigationBar.rightBarButtonItemView.itemImageView.image = ImageName(@"icon_pyq_more_back");