修复异步切换画质bug

packages/artplayer/src/player/switchQualityMix.js

@@ -10,16 +10,17 @@ export default function switchMix(art, player) {
             if (url !== option.url) {
                 const { isPlaying } = art;
                 const { currentTime } = player;
-                player.attachUrl(url);
-                option.url = url;
-                player.playbackRateRemove();
-                player.aspectRatioRemove();
-                player.seek(currentTime);
-                if (isPlaying) {
-                    player.play();
-                }
-                notice.show(`${i18n.get('Switch video')}: ${name}`);
-                art.emit('switch', url);
+                player.attachUrl(url).then(() => {
+                    option.url = url;
+                    player.playbackRateRemove();
+                    player.aspectRatioRemove();
+                    player.seek(currentTime);
+                    if (isPlaying) {
+                        player.play();
+                    }
+                    notice.show(`${i18n.get('Switch video')}: ${name}`);
+                    art.emit('switch', url);
+                });
             }
         },
     });