diff --git a/app/src/main/java/com/gh/common/util/TokenUtils.java b/app/src/main/java/com/gh/common/util/TokenUtils.java
index b469a0ad25..1579a677ee 100644
--- a/app/src/main/java/com/gh/common/util/TokenUtils.java
+++ b/app/src/main/java/com/gh/common/util/TokenUtils.java
@@ -9,12 +9,7 @@ import android.provider.Settings;
 import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 
-import com.android.volley.Request;
-import com.android.volley.Response;
-import com.android.volley.VolleyError;
-import com.gh.base.AppController;
 import com.gh.common.constant.Config;
-import com.gh.gamecenter.volley.extended.JsonObjectExtendedRequest;
 import com.tencent.stat.StatConfig;
 
 import org.json.JSONException;
diff --git a/app/src/main/java/com/gh/gamecenter/ConcernActivity.java b/app/src/main/java/com/gh/gamecenter/ConcernActivity.java
index 714dba955d..7b8e442be7 100644
--- a/app/src/main/java/com/gh/gamecenter/ConcernActivity.java
+++ b/app/src/main/java/com/gh/gamecenter/ConcernActivity.java
@@ -23,7 +23,6 @@ import com.gh.gamecenter.manager.ConcernManager;
 
 import org.json.JSONArray;
 
-import java.util.ArrayList;
 import java.util.List;
 
 public class ConcernActivity extends BaseActivity implements OnClickListener {
diff --git a/app/src/main/java/com/gh/gamecenter/MainActivity.java b/app/src/main/java/com/gh/gamecenter/MainActivity.java
index c8a06fe993..ad8f16b2e7 100644
--- a/app/src/main/java/com/gh/gamecenter/MainActivity.java
+++ b/app/src/main/java/com/gh/gamecenter/MainActivity.java
@@ -9,7 +9,6 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.pm.ApplicationInfo;
 import android.net.Uri;
-import android.net.wifi.WifiManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
@@ -88,7 +87,6 @@ import com.gh.gamecenter.volley.extended.JsonObjectExtendedRequest;
 import com.gh.gamecenter.volley.extended.StringExtendedRequest;
 import com.google.gson.Gson;
 import com.google.gson.reflect.TypeToken;
-import com.tencent.stat.StatConfig;
 
 import org.json.JSONArray;
 import org.json.JSONException;
diff --git a/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java b/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
index e4aaeeeaeb..fe7c485d03 100644
--- a/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
+++ b/app/src/main/java/com/gh/gamecenter/SplashScreenActivity.java
@@ -8,7 +8,6 @@ import android.content.SharedPreferences;
 import android.content.SharedPreferences.Editor;
 import android.os.Bundle;
 import android.os.Handler;
-import android.support.v4.util.ArrayMap;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.view.KeyEvent;
@@ -28,23 +27,14 @@ import com.gh.common.util.FileUtils;
 import com.gh.common.util.ImageUtils;
 import com.gh.common.util.PackageUtils;
 import com.gh.common.util.TimestampUtils;
-import com.gh.common.util.TrafficUtils;
 import com.gh.common.util.Utils;
-import com.gh.gamecenter.db.info.ConcernInfo;
 import com.gh.gamecenter.db.info.FilterInfo;
-import com.gh.gamecenter.db.info.GameInfo;
-import com.gh.gamecenter.entity.ApkEntity;
-import com.gh.gamecenter.entity.GameDigestEntity;
-import com.gh.gamecenter.entity.GameEntity;
 import com.gh.gamecenter.manager.ConcernManager;
 import com.gh.gamecenter.manager.DataCollectionManager;
 import com.gh.gamecenter.manager.FilterManager;
-import com.gh.gamecenter.manager.PackageManager;
-import com.gh.gamecenter.manager.SuspectedGameManager;
 import com.gh.gamecenter.volley.extended.JsonArrayExtendedRequest;
 import com.gh.gamecenter.volley.extended.JsonObjectExtendedRequest;
 import com.gh.gamecenter.volley.extended.StringExtendedRequest;
-import com.google.gson.Gson;
 
 import org.json.JSONArray;
 import org.json.JSONException;
@@ -57,7 +47,6 @@ import java.io.InputStreamReader;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
diff --git a/app/src/main/java/com/gh/gamecenter/adapter/ConcernRecommendAdapter.java b/app/src/main/java/com/gh/gamecenter/adapter/ConcernRecommendAdapter.java
index 393edbef82..7070b70f67 100644
--- a/app/src/main/java/com/gh/gamecenter/adapter/ConcernRecommendAdapter.java
+++ b/app/src/main/java/com/gh/gamecenter/adapter/ConcernRecommendAdapter.java
@@ -19,7 +19,6 @@ import com.gh.gamecenter.ConcernActivity;
 import com.gh.gamecenter.GameDetailActivity;
 import com.gh.gamecenter.R;
 import com.gh.gamecenter.adapter.viewholder.ConcernViewHolder;
-import com.gh.gamecenter.db.info.ConcernInfo;
 import com.gh.gamecenter.entity.GameEntity;
 import com.gh.gamecenter.listener.OnCallBackListener;
 import com.gh.gamecenter.manager.ConcernManager;
diff --git a/app/src/main/java/com/gh/gamecenter/game/Game1Fragment.java b/app/src/main/java/com/gh/gamecenter/game/Game1Fragment.java
index a87ce29dad..b062431e02 100644
--- a/app/src/main/java/com/gh/gamecenter/game/Game1Fragment.java
+++ b/app/src/main/java/com/gh/gamecenter/game/Game1Fragment.java
@@ -14,7 +14,6 @@ import com.gc.materialdesign.views.ProgressBarCircularIndeterminate;
 import com.gh.base.AppController;
 import com.gh.base.BaseFragment;
 import com.gh.common.util.DownloadItemUtils;
-import com.gh.common.util.Utils;
 import com.gh.download.DataWatcher;
 import com.gh.download.DownloadEntity;
 import com.gh.download.DownloadManager;
diff --git a/app/src/main/java/com/gh/gamecenter/personal/InstallFragment.java b/app/src/main/java/com/gh/gamecenter/personal/InstallFragment.java
index 3d996d3435..2c3376e710 100644
--- a/app/src/main/java/com/gh/gamecenter/personal/InstallFragment.java
+++ b/app/src/main/java/com/gh/gamecenter/personal/InstallFragment.java
@@ -6,7 +6,6 @@ import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 
 import com.gh.base.BaseFragment;
-import com.gh.common.util.DisplayUtils;
 import com.gh.common.util.DownloadItemUtils;
 import com.gh.download.DataWatcher;
 import com.gh.download.DownloadEntity;
diff --git a/app/src/main/java/com/gh/gamecenter/personal/PersonalFragment.java b/app/src/main/java/com/gh/gamecenter/personal/PersonalFragment.java
index 3e01f651d1..ed1643b18d 100644
--- a/app/src/main/java/com/gh/gamecenter/personal/PersonalFragment.java
+++ b/app/src/main/java/com/gh/gamecenter/personal/PersonalFragment.java
@@ -47,11 +47,9 @@ import com.gh.gamecenter.CropImageActivity;
 import com.gh.gamecenter.MainActivity;
 import com.gh.gamecenter.R;
 import com.gh.gamecenter.SettingActivity;
-import com.gh.gamecenter.volley.extended.JsonObjectExtendedRequest;
 import com.gh.gamecenter.volley.extended.StringExtendedRequest;
 import com.tencent.stat.StatConfig;
 
-import org.json.JSONException;
 import org.json.JSONObject;
 
 import java.util.HashMap;