1、Bug fix for removing subviews

Author: ianyanzhang

Demo/TXLiteAVDemo/SuperPlayerDemo/SuperPlayer/CacheView/VodDownloadCenter/TXVodDownloadCenter.m

@@ -40,7 +40,9 @@ - (id)init {
 }
 
 - (void)registerListener:(DownloadCallback *)callback info:(TXVodDownloadMediaInfo *)mediaInfo {
-    [self.listenerDic setObject:callback forKey:mediaInfo.playPath];
+    if (mediaInfo.playPath != nil){
+        [self.listenerDic setObject:callback forKey:mediaInfo.playPath];
+    }
 }
 
 - (void)unRegisterListener:(TXVodDownloadMediaInfo *)mediaInfo {

Demo/TXLiteAVDemo/SuperPlayerKit/SuperPlayer/SuperPlayerView.m

@@ -2021,6 +2021,7 @@ - (void)showVipView {
 - (void)_removeOldPlayer {
     for (UIView *w in [self subviews]) {
         if ([w isKindOfClass:NSClassFromString(@"TXCRenderView")]) [w removeFromSuperview];
+        if ([w isKindOfClass:NSClassFromString(@"TXCiOSVideoRenderView")]) [w removeFromSuperview];
         if ([w isKindOfClass:NSClassFromString(@"TXIJKSDLGLView")]) [w removeFromSuperview];
         if ([w isKindOfClass:NSClassFromString(@"TXCAVPlayerView")]) [w removeFromSuperview];
         if ([w isKindOfClass:NSClassFromString(@"TXCThumbPlayerView")]) [w removeFromSuperview];