Fix site playUrl not trigger problem

app/src/main/java/com/fongmi/android/tv/bean/Site.java

@@ -101,7 +101,7 @@ public class Site {
     }
 
     public String getPlayUrl() {
-        return playUrl;
+        return TextUtils.isEmpty(playUrl) ? "" : playUrl;
     }
 
     public int getPlayerType() {

app/src/main/java/com/fongmi/android/tv/model/SiteViewModel.java

@@ -160,7 +160,7 @@ public class SiteViewModel extends ViewModel {
                 result.setUrl(url);
                 result.setFlag(flag);
                 result.setPlayUrl(site.getPlayUrl());
-                result.setParse(Utils.isVideoFormat(url) ? 0 : 1);
+                result.setParse(Utils.isVideoFormat(url) && result.getPlayUrl().isEmpty() ? 0 : 1);
                 return result;
             }
         });