diff --git a/app/src/main/java/com/gh/download/cache/ExoCacheManager.kt b/app/src/main/java/com/gh/download/cache/ExoCacheManager.kt
index e769c906c6..b3fe543a68 100644
--- a/app/src/main/java/com/gh/download/cache/ExoCacheManager.kt
+++ b/app/src/main/java/com/gh/download/cache/ExoCacheManager.kt
@@ -23,11 +23,14 @@ import java.util.concurrent.atomic.AtomicBoolean
 object ExoCacheManager {
 
     private val threads = ConcurrentHashMap<String, AtomicBoolean>()
+    private const val preLength = 50 * 1024 * 1024L //预加载视频大小
 
     fun preload(videoUri: String) {
         runOnIoThread {
             threads[videoUri] = AtomicBoolean(false)
-            val dataSpec = DataSpec(Uri.parse(videoUri), 0, getContentLength(videoUri), null)
+            val contentLength = getContentLength(videoUri)
+            val cacheLength = if (contentLength >= preLength) preLength else contentLength
+            val dataSpec = DataSpec(Uri.parse(videoUri), 0, cacheLength, null)
             val simpleCache = ExoSourceManager.getCacheSingleInstance(HaloApp.getInstance().application, null)
             val dataSourceFactory = GSYExoHttpDataSourceFactory(Util.getUserAgent(HaloApp.getInstance().application,
                     "ExoCacheManager"), DefaultBandwidthMeter.Builder(HaloApp.getInstance().application).build(),
diff --git a/app/src/main/java/com/gh/gamecenter/video/detail/CustomManager.java b/app/src/main/java/com/gh/gamecenter/video/detail/CustomManager.java
index 456a0529d6..51118c2730 100644
--- a/app/src/main/java/com/gh/gamecenter/video/detail/CustomManager.java
+++ b/app/src/main/java/com/gh/gamecenter/video/detail/CustomManager.java
@@ -39,9 +39,9 @@ public class CustomManager extends GSYVideoBaseManager {
 
     private static Map<String, CustomManager> sMap = new HashMap<>();
 
-    private static final int DEFAULT_MIN_BUFFER_MS = 5000;
+    private static final int DEFAULT_MIN_BUFFER_MS = 10 * 1000;
 
-    private static final int DEFAULT_MAX_BUFFER_MS = 20000;
+    private static final int DEFAULT_MAX_BUFFER_MS = 20 * 1000;
 
 
     public CustomManager() {
diff --git a/app/src/main/java/com/gh/gamecenter/video/detail/DetailPlayerView.kt b/app/src/main/java/com/gh/gamecenter/video/detail/DetailPlayerView.kt
index abea0755f4..a86fd5c32a 100644
--- a/app/src/main/java/com/gh/gamecenter/video/detail/DetailPlayerView.kt
+++ b/app/src/main/java/com/gh/gamecenter/video/detail/DetailPlayerView.kt
@@ -21,6 +21,7 @@ import com.gh.common.constant.Constants
 import com.gh.common.observer.MuteCallback
 import com.gh.common.observer.VolumeObserver
 import com.gh.common.runOnIoThread
+import com.gh.common.runOnUiThread
 import com.gh.common.util.*
 import com.gh.download.cache.CacheManager
 import com.gh.gamecenter.GameDetailActivity
@@ -778,9 +779,12 @@ class DetailPlayerView @JvmOverloads constructor(context: Context, attrs: Attrib
             if (mContentLength == 0.0) {
                 mContentLength = CacheManager.getInstance().getContentLength(mVideoEntity!!.url) / 1024.0 / 1024.0
             }
-            LogUtils.uploadVideoStreamingPlaying(action, msg, mViewModel!!.path,
-                    mViewModel!!.entranceDetail, mVideoEntity!!.id, mViewModel!!.uuid, mContentLength,
-                    duration / 1000, currentPositionWhenPlaying / 1000, videoPlayStatus())
+            //https://exoplayer.dev/hello-world.html#a-note-on-threading
+            runOnUiThread {
+                LogUtils.uploadVideoStreamingPlaying(action, msg, mViewModel!!.path,
+                        mViewModel!!.entranceDetail, mVideoEntity!!.id, mViewModel!!.uuid, mContentLength,
+                        duration / 1000, currentPositionWhenPlaying / 1000, videoPlayStatus())
+            }
         }
     }