diff --git a/app/src/main/java/com/gh/download/DownloadManager.java b/app/src/main/java/com/gh/download/DownloadManager.java
index 83c1effe83..a8ab8fcd0a 100644
--- a/app/src/main/java/com/gh/download/DownloadManager.java
+++ b/app/src/main/java/com/gh/download/DownloadManager.java
@@ -5,12 +5,10 @@ import android.content.Intent;
 import android.os.Handler;
 import android.os.Message;
 import android.support.v4.util.ArrayMap;
-import android.text.TextUtils;
 import android.widget.Toast;
 
 import com.gh.common.constant.Constants;
 import com.gh.common.util.FileUtils;
-import com.gh.common.util.PlatformUtils;
 import com.gh.common.util.Utils;
 
 import java.io.File;
diff --git a/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java b/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
index e1de720b61..7e6130dead 100644
--- a/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
+++ b/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
@@ -6,9 +6,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
-import android.net.Uri;
 import android.os.Bundle;
-import android.provider.Settings;
 import android.support.v4.util.ArrayMap;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
diff --git a/app/src/main/java/com/gh/gamecenter/game/Game3FragmentAdapter.java b/app/src/main/java/com/gh/gamecenter/game/Game3FragmentAdapter.java
index e9651d05cf..5e0d2dd5ed 100644
--- a/app/src/main/java/com/gh/gamecenter/game/Game3FragmentAdapter.java
+++ b/app/src/main/java/com/gh/gamecenter/game/Game3FragmentAdapter.java
@@ -22,7 +22,6 @@ import com.gh.common.util.DownloadItemUtils;
 import com.gh.common.util.GameViewUtils;
 import com.gh.common.util.ImageUtils;
 import com.gh.common.util.TimestampUtils;
-import com.gh.common.util.Utils;
 import com.gh.common.view.CardLinearLayout;
 import com.gh.download.DownloadManager;
 import com.gh.gamecenter.GameDetailActivity;
diff --git a/app/src/main/java/com/gh/gamecenter/manager/PackageManager.java b/app/src/main/java/com/gh/gamecenter/manager/PackageManager.java
index c427ac0f91..dae255bfcd 100644
--- a/app/src/main/java/com/gh/gamecenter/manager/PackageManager.java
+++ b/app/src/main/java/com/gh/gamecenter/manager/PackageManager.java
@@ -1,18 +1,13 @@
 package com.gh.gamecenter.manager;
 
 import android.content.Context;
-import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
-import android.net.Uri;
-import android.provider.Settings;
 import android.support.v4.util.ArrayMap;
 import android.text.TextUtils;
 
 import com.gh.common.util.PackageUtils;
-import com.gh.common.util.Utils;
-import com.gh.gamecenter.BuildConfig;
 import com.gh.gamecenter.entity.GameUpdateEntity;
 
 import org.json.JSONArray;