diff --git a/app/src/main/java/com/gh/common/util/Extensions.kt b/app/src/main/java/com/gh/common/util/Extensions.kt
index 6d5061b9bf..c883b390c7 100644
--- a/app/src/main/java/com/gh/common/util/Extensions.kt
+++ b/app/src/main/java/com/gh/common/util/Extensions.kt
@@ -496,15 +496,15 @@ inline fun testChannelOnly(f: () -> Unit) {
  * 倒计时，单位s
  */
 inline fun countDownTimer(
-        remainingTime: Long,
+        timeInSeconds: Long,
         crossinline block: (finish: Boolean, remainingTime: Long) -> Unit
 ): Disposable {
     var subscribe: Disposable? = null
     subscribe = Observable.interval(0, 1000, TimeUnit.MILLISECONDS)
             .observeOn(AndroidSchedulers.mainThread())
             .subscribe {
-                if (it < remainingTime) {
-                    block.invoke(false, remainingTime - it)
+                if (it < timeInSeconds) {
+                    block.invoke(false, timeInSeconds - it)
                 } else {
                     block.invoke(true, 0)
                     if (subscribe != null && !subscribe!!.isDisposed) {
diff --git a/app/src/main/java/com/gh/gamecenter/gamedetail/desc/DescFragment.kt b/app/src/main/java/com/gh/gamecenter/gamedetail/desc/DescFragment.kt
index 9130e01ed9..e624da746f 100644
--- a/app/src/main/java/com/gh/gamecenter/gamedetail/desc/DescFragment.kt
+++ b/app/src/main/java/com/gh/gamecenter/gamedetail/desc/DescFragment.kt
@@ -24,7 +24,7 @@ import com.gh.gamecenter.gamedetail.GameDetailViewModel
 import com.gh.gamecenter.gamedetail.entity.NewGameDetailEntity
 import com.gh.gamecenter.video.detail.VideoDetailActivity
 import com.halo.assistant.HaloApp
-import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
 import org.greenrobot.eventbus.EventBus
 import org.greenrobot.eventbus.Subscribe
 import org.greenrobot.eventbus.ThreadMode
@@ -36,9 +36,8 @@ class DescFragment : BaseFragment<Any>() {
     private var layoutManager: LinearLayoutManager? = null
     private var mGameEntity: GameEntity? = null
 
-    //    private var mDetailEntity: GameDetailEntity? = null
     private var mNewDetailEntity: NewGameDetailEntity? = null
-    private var mCompositeDisposable: CompositeDisposable? = null
+    private var mDisplayHintDisposable: Disposable? = null
 
     private lateinit var mViewModel: DescViewModel
 
@@ -110,8 +109,6 @@ class DescFragment : BaseFragment<Any>() {
         })
 
         super.onCreate(savedInstanceState)
-
-        mCompositeDisposable = CompositeDisposable()
     }
 
     override fun getLayoutId(): Int {
@@ -138,14 +135,13 @@ class DescFragment : BaseFragment<Any>() {
                 }
 
                 for (i in firstCompletelyVisibleItemPosition..lastCompletelyVisibleItemPosition) {
-                    if (i < 0) {
-                        continue
-                    }
+                    if (i < 0) continue
 
                     if (mAdapter.getItemViewType(i) == DescAdapter.CUSTOM_COLUMN
                             && mAdapter.descItemList.get(i).customColumn?.showExpandTagsHint == true) {
                         // 可视三秒后隐藏自定义栏目的标签展开浮窗提示
-                        mCompositeDisposable?.add(countDownTimer(3L) { isFinish, _ ->
+                        mDisplayHintDisposable?.dispose()
+                        mDisplayHintDisposable = countDownTimer(3L) { isFinish, _ ->
                             if (isFinish && activity?.isFinishing != true && isThisPositionVisible(i)) {
                                 tryWithDefaultCatch {
                                     SPUtils.setBoolean(Constants.SP_HAS_SHOWN_EXPANDED_GAME_DETAIL_TAGS_HINT, true)
@@ -153,7 +149,7 @@ class DescFragment : BaseFragment<Any>() {
                                     mAdapter.notifyItemChanged(i)
                                 }
                             }
-                        })
+                        }
                     }
                 }
             }
@@ -166,7 +162,7 @@ class DescFragment : BaseFragment<Any>() {
 
     override fun onDestroy() {
         super.onDestroy()
-        mCompositeDisposable?.dispose()
+        mDisplayHintDisposable?.dispose()
     }
 
     @Subscribe(threadMode = ThreadMode.MAIN)