diff --git a/app/src/main/java/com/gh/gamecenter/download/InstalledGameFragment.kt b/app/src/main/java/com/gh/gamecenter/download/InstalledGameFragment.kt
index 09b211297c..f406f3a420 100644
--- a/app/src/main/java/com/gh/gamecenter/download/InstalledGameFragment.kt
+++ b/app/src/main/java/com/gh/gamecenter/download/InstalledGameFragment.kt
@@ -7,7 +7,6 @@ import android.widget.TextView
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProviders
 import androidx.recyclerview.widget.DefaultItemAnimator
-import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import butterknife.BindView
 import com.ethanhua.skeleton.Skeleton
@@ -15,6 +14,7 @@ import com.ethanhua.skeleton.ViewSkeletonScreen
 import com.gh.base.OnRequestCallBackListener
 import com.gh.common.exposure.ExposureListener
 import com.gh.common.util.DownloadItemUtils
+import com.gh.common.view.FixLinearLayoutManager
 import com.gh.common.view.VerticalItemDecoration
 import com.gh.download.DownloadManager
 import com.gh.gamecenter.MainActivity
@@ -81,7 +81,7 @@ class InstalledGameFragment : NormalFragment(), OnRequestCallBackListener<Any> {
             MainActivity.skipToMainActivity(getActivity(), MainWrapperFragment.INDEX_HOME)
         }
 
-        mInstallRv.layoutManager = LinearLayoutManager(requireContext())
+        mInstallRv.layoutManager = FixLinearLayoutManager(requireContext())
         (mInstallRv.itemAnimator as DefaultItemAnimator).supportsChangeAnimations = false
         mAdapter = InstalledGameFragmentAdapter(this)
         mExposureListener = ExposureListener(this, mAdapter!!)
diff --git a/app/src/main/java/com/gh/gamecenter/manager/PackagesManager.kt b/app/src/main/java/com/gh/gamecenter/manager/PackagesManager.kt
index 3c7dd27f02..6a263b7910 100644
--- a/app/src/main/java/com/gh/gamecenter/manager/PackagesManager.kt
+++ b/app/src/main/java/com/gh/gamecenter/manager/PackagesManager.kt
@@ -217,6 +217,6 @@ object PackagesManager {
             i++
         }
 
-        return installedList
+        return ArrayList(installedList)
     }
 }
diff --git a/app/src/main/java/com/gh/gamecenter/packagehelper/PackageRepository.kt b/app/src/main/java/com/gh/gamecenter/packagehelper/PackageRepository.kt
index 3fbddcc3aa..2df3449281 100644
--- a/app/src/main/java/com/gh/gamecenter/packagehelper/PackageRepository.kt
+++ b/app/src/main/java/com/gh/gamecenter/packagehelper/PackageRepository.kt
@@ -312,13 +312,13 @@ object PackageRepository {
     }
 
     private fun notifyGameInstallData() {
-        PackagesManager.initGameInstall(gameInstalled)
-        gameInstalledLiveData.postValue(gameInstalled)
+        PackagesManager.initGameInstall(ArrayList(gameInstalled))
+        gameInstalledLiveData.postValue(ArrayList(gameInstalled))
     }
 
     private fun notifyGameUpdateData() {
-        PackagesManager.initGameUpdate(gameUpdate)
-        gameUpdateLiveData.postValue(gameUpdate)
+        PackagesManager.initGameUpdate(ArrayList(gameUpdate))
+        gameUpdateLiveData.postValue(ArrayList(gameUpdate))
     }
 
     private fun notifyInstallPkgData() {