diff --git a/app/src/main/java/com/gh/gamecenter/MainActivity.java b/app/src/main/java/com/gh/gamecenter/MainActivity.java
index 65308d0283..f6c0f42502 100644
--- a/app/src/main/java/com/gh/gamecenter/MainActivity.java
+++ b/app/src/main/java/com/gh/gamecenter/MainActivity.java
@@ -12,6 +12,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.SystemClock;
+import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.util.ArrayMap;
@@ -117,6 +118,8 @@ public class MainActivity extends BaseFragmentActivity implements
 	private ArrayMap<String, String> entryMap;
 	private ArrayMap<String, String> doneMap;
 
+	private int currentTab;
+
 	private boolean isFirst;
 	private boolean isDestroy = false;
 	private boolean isShowDownload = false;
@@ -371,10 +374,22 @@ public class MainActivity extends BaseFragmentActivity implements
 
 	private Handler handler = new Handler();
 
+	@Override
+	protected void onSaveInstanceState(Bundle outState) {
+		super.onSaveInstanceState(outState);
+		outState.putInt("currentTab" , currentTab);
+	}
+
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
 		super.onCreate(savedInstanceState);
 
+		if (savedInstanceState != null) {
+			currentTab = savedInstanceState.getInt("currentTab");
+		} else {
+			currentTab = 0;
+		}
+
 		View contentView = View.inflate(this, R.layout.activity_main, null);
 
 		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
@@ -385,7 +400,7 @@ public class MainActivity extends BaseFragmentActivity implements
 		setContentView(contentView);
 
 		initViews();
-		setTabSelection(0);
+		setTabSelection(currentTab);
 
 		entryMap = new ArrayMap<String, String>();
 		doneMap = new ArrayMap<String, String>();
@@ -953,8 +968,7 @@ public class MainActivity extends BaseFragmentActivity implements
 
 	private void setTabSelection(int index) {
 		clearSelection();
-		FragmentTransaction transaction = getSupportFragmentManager()
-				.beginTransaction();
+		FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
 		hideFragments(transaction);
 		switch (index) {
 			case 0:
@@ -963,11 +977,24 @@ public class MainActivity extends BaseFragmentActivity implements
 				home1Title.setTextColor(getResources().getColor(
 						R.color.theme_colors));
 				if (home1Fragment == null) {
-					home1Fragment = new HomeFragment();
-					transaction.add(R.id.main_content, home1Fragment);
+					List<Fragment> list = getSupportFragmentManager().getFragments();
+					if (list != null) {
+						for (Fragment fragment : list) {
+							if (fragment.getClass().equals(HomeFragment.class)) {
+								home1Fragment = (HomeFragment) fragment;
+								transaction.show(home1Fragment);
+								break;
+							}
+						}
+					}
+					if (home1Fragment == null) {
+						home1Fragment = new HomeFragment();
+						transaction.add(R.id.main_content, home1Fragment);
+					}
 				} else {
 					transaction.show(home1Fragment);
 				}
+				currentTab = 0;
 				break;
 			case 1:
 				home2Layout.setClickable(false);
@@ -975,11 +1002,24 @@ public class MainActivity extends BaseFragmentActivity implements
 				home2Title.setTextColor(getResources().getColor(
 						R.color.theme_colors));
 				if (pluginFragmentActivity == null) {
-					pluginFragmentActivity = new PluginFragment();
-					transaction.add(R.id.main_content, pluginFragmentActivity);
+					List<Fragment> list = getSupportFragmentManager().getFragments();
+					if (list != null) {
+						for (Fragment fragment : list) {
+							if (fragment.getClass().equals(PluginFragment.class)) {
+								pluginFragmentActivity = (PluginFragment) fragment;
+								transaction.show(pluginFragmentActivity);
+								break;
+							}
+						}
+					}
+					if (pluginFragmentActivity == null) {
+						pluginFragmentActivity = new PluginFragment();
+						transaction.add(R.id.main_content, pluginFragmentActivity);
+					}
 				} else {
 					transaction.show(pluginFragmentActivity);
 				}
+				currentTab = 1;
 				break;
 			case 2:
 				home3Layout.setClickable(false);
@@ -987,11 +1027,24 @@ public class MainActivity extends BaseFragmentActivity implements
 				home3Title.setTextColor(getResources().getColor(
 						R.color.theme_colors));
 				if (home3Fragment == null) {
-					home3Fragment = new PersonalFragment();
-					transaction.add(R.id.main_content, home3Fragment);
+					List<Fragment> list = getSupportFragmentManager().getFragments();
+					if (list != null) {
+						for (Fragment fragment : list) {
+							if (fragment.getClass().equals(PersonalFragment.class)) {
+								home3Fragment = (PersonalFragment) fragment;
+								transaction.show(home3Fragment);
+								break;
+							}
+						}
+					}
+					if (home3Fragment == null) {
+						home3Fragment = new PersonalFragment();
+						transaction.add(R.id.main_content, home3Fragment);
+					}
 				} else {
 					transaction.show(home3Fragment);
 				}
+				currentTab = 2;
 				break;
 			default:
 				break;
@@ -1027,6 +1080,12 @@ public class MainActivity extends BaseFragmentActivity implements
 		if (home1Fragment != null) {
 			transaction.hide(home1Fragment);
 		}
+		List<Fragment> list = getSupportFragmentManager().getFragments();
+		if (list != null) {
+			for (Fragment fragment : list) {
+				transaction.hide(fragment);
+			}
+		}
 	}
 
 	private void uploadData(String id, String platform) {