修复滑动直播间到同一个主播时，会黑屏的问题

live/src/main/java/com/yunbao/live/utils/LiveExoPlayerManager.java

@@ -40,9 +40,9 @@ public class LiveExoPlayerManager {
     public LiveExoPlayerManager(Context mContext) {
         DefaultLoadControl control = new DefaultLoadControl.Builder()
                 .setPrioritizeTimeOverSizeThresholds(false)
-                .setBackBuffer(120_000, true)
+                .setBackBuffer(10_000, true)
                 .setBufferDurationsMs(500,
-                        60_000,
+                        5_000,
                         150,
                         200)
                 .build();
@@ -328,6 +328,7 @@ public class LiveExoPlayerManager {
      */
     public void stop() {
         getNowPlayer().stop();
+        clearUrl();
     }
 
     /**
@@ -355,9 +356,13 @@ public class LiveExoPlayerManager {
      * 释放播放器
      */
     public void release() {
+        Log.i(TAG, "release: 释放播放器");
         player1.release();
         player2.release();
     }
+    public void clearUrl(){
+        url="";
+    }
 
     public String getUrl() {
         if (url == null) {

live/src/main/java/com/yunbao/live/views/LivePlayRyViewHolder.java

@@ -302,6 +302,7 @@ public class LivePlayRyViewHolder extends LiveRoomPlayViewHolder {
         }
         if (mPlayer.isPlaying()) {
             mPlayer.stop();
+            mPlayer.clearUrl();
         }
         mPlayer.startUrl(url);
         purl = url;