修复了个播房切换房间会有一个白色的背景的效果bug

xplan-ios/Main/Room/View/AnchorCycleView/AnchorRoomScrollView.m

@@ -34,6 +34,7 @@
     self = [super initWithFrame:frame];
     if(self)
 	{
+		self.backgroundColor = [UIColor clearColor];
         self.pagingEnabled = YES;
         self.showsHorizontalScrollIndicator = NO;
         self.showsVerticalScrollIndicator = NO;
@@ -108,18 +109,11 @@
 
 -(void)scrollViewDidScroll:(UIScrollView *)scrollView {
     if (scrollView.contentOffset.y > KScreenHeight) {///乡上滚动
-		if (scrollView.contentOffset.y <= (KScreenHeight * 1.5)) {
-			return;
-		}
-
         if (!self.animatePlay) {
             [self startAnimate:self.downDisplayView];
         }
 	} else {///向下滚动
 		if (self.isCanScrollTop) {
-			if (scrollView.contentOffset.y > (KScreenHeight * 0.5)) {
-				return;
-			}
 			if (!self.animatePlay) {
 				[self startAnimate:self.topDisplayView];
 			}

xplan-ios/Main/Room/View/XPRoomViewController.m

@@ -798,7 +798,6 @@ NSString * const kHadQuitOtherRoomKey = @"kHadQuitOtherRoomKey";//是否退出
         [self.presenter reportUserOutRoom:[NSString stringWithFormat:@"%ld", self.roomInfo.uid]];
 		[self.functionView onRoomChange];
         //2、移除房间子控件
-        [self.backContainerView removeFromSuperview];
         [self.stageView removeFromSuperview];
         [self.messageContainerView removeFromSuperview];
         [self.activityContainerView removeFromSuperview];