MKRAVplayer 添加即将切换播放资源代理方法

MKRRadioManager/Classes/MKRRadioManager/MKRAVPlayer/MKRAVPlayer.m

@@ -460,6 +460,7 @@ NSURL * MKRUrlWithString(NSString *string){
                 self.player.rate = self.rate;
                 self.state = MKRAVPlayerStatePlaying;
             }else{
+                [self.player pause];
                 self.state = MKRAVPlayerStatePause;
             }
         });