之前有跟大家分享设置Tab风格和Item圆角的实现，希望能给有需要的朋友一点点帮助，今天再和大家分享一下用ViewPager实现设置分页，小米和OPPO就是这样的设置，先来看看效果图：

为了帮助大家更清晰的理解，我单独拿出一个小例子，有需要的朋友可以下载下来看看：

http://git.oschina.net/way/SettingTab/tree/master

其实要实现这样的风格并不难，只要能比较深入的理解PreferenceActivity.java就可以了。我们都知道Settings.java是继承自PreferenceActivity.java，所用的布局文件layout也是父类的，而且他的二级界面都是Fragment，都是依赖他这个Activity，如果在onCreate函数中通过setContentView()改变Settings.java的布局，岂不是也会影响他的二级界面？相信很多遇到困难的朋友就是这个原因。

答案是否定的！很明显，我们只需要在显示Settings的第一个界面的时候才setContentView()，也就是说在onCreate里面判断一下： if (this.getClass().equals(Settings.class))，为什么是这样呢？我们可以滚动到Settings.java文件末尾，会发现，其实二级菜单都是一些Fragment，但是它们也有虚拟的类名的，都是Settings的内部类，所以，进到二级菜单就不满足这个条件了。

如下所示：

		if (this.getClass().equals(Settings.class)) {
			setContentView(R.layout.tab_settings);
			mTabCursor = (ImageView) findViewById(R.id.tab_cursor);
			ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
			viewPager.setAdapter(new ViewPagerAdapter(getFragmentManager()));
			viewPager.setOnPageChangeListener(mPageChangeListener);
			mViewPager = viewPager;

			mTabGeneral = (TextView) findViewById(R.id.tab_general);
			mTabDisplay = (TextView) findViewById(R.id.tab_display);
			mTabGeneral.setOnClickListener(mTabOnClickListener);
			mTabDisplay.setOnClickListener(mTabOnClickListener);
			mTabGeneral.setTextColor(COLOR_SELECTED);
			mTabGeneral.setTextSize(TEXT_SIZE_SELECTED);
		}

不过为了善始善终，我会继续贴下去。

接下来，我们看看tab_settings.xml的布局，由于PreferenceActivity的特性，布局中必须要有一个id为android:id/list的ListView，因为所有的xml目录下的preference解析出来都是显示在上面，虽然我们改变了布局，但还是不能改变他的代码嘛！就弄一个高度宽度为0的ListView骗一下它就可以了，呵呵：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <ListView
        android:id="@android:id/list"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:visibility="gone"/>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >
        <FrameLayout 
           android:layout_width="match_parent"
           android:layout_height="@dimen/tab_height"
           android:background="@drawable/tab_background" >
    <ImageView 
                android:id="@+id/tab_cursor"
                android:layout_width="@dimen/tab_width"
                android:layout_height="@dimen/tab_height"
                android:background="@drawable/tab_cursor"/>
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="@dimen/tab_height">
                <TextView
                    android:id="@+id/tab_general"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:layout_gravity="center_vertical"
                    android:gravity="center"
                    android:text="@string/tab_general"
                    android:singleLine="true"
                    android:textSize="@dimen/tab_text_size" />
                <TextView
                    android:id="@+id/tab_display"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    android:gravity="center"
                    android:layout_gravity="center_vertical"
                    android:text="@string/tab_display"
                    android:singleLine="true"
                    android:textSize="@dimen/tab_text_size" />
            </LinearLayout>  
        </FrameLayout>

        <android.support.v4.view.ViewPager
            android:id="@+id/pager"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />
    </LinearLayout>

</FrameLayout>

下面把整个Settings.java的源代码分享一下：

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings;
import android.app.ActionBar;
import android.app.ActivityManager;
import android.app.Fragment;
import android.app.FragmentManager;

import com.android.internal.util.ArrayUtils;
import com.android.settings.accounts.AccountSyncSettings;
import com.android.settings.accounts.AuthenticatorHelper;
import com.android.settings.accounts.ManageAccountsSettings;
import com.android.settings.applications.ManageApplications;
import com.android.settings.bluetooth.BluetoothEnabler;
import com.android.settings.deviceinfo.Memory;
import com.android.settings.fuelgauge.PowerUsageSummary;
import com.android.settings.inputmethod.UserDictionaryAddWordFragment;
import com.android.settings.wifi.WifiEnabler;
import com.android.settings.wristwatch.WristwatchEnabler;

import static com.sprd.android.config.OptConfig.LC_RAM_SUPPORT;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.OnAccountsUpdateListener;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.INetworkManagementService;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.UserId;
import android.os.SystemProperties;
import android.os.TopwiseProp;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceActivity.Header;
import android.preference.PreferenceFragment;
import android.support.v13.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.Switch;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;

/**
 * Top-level settings activity to handle single pane and double pane UI layout.
 */
public class Settings extends PreferenceActivity
        implements ButtonBarHandler, OnAccountsUpdateListener {

    private static final String LOG_TAG = "Settings";

    private static final String META_DATA_KEY_HEADER_ID =
        "com.android.settings.TOP_LEVEL_HEADER_ID";
    private static final String META_DATA_KEY_FRAGMENT_CLASS =
        "com.android.settings.FRAGMENT_CLASS";
    private static final String META_DATA_KEY_PARENT_TITLE =
        "com.android.settings.PARENT_FRAGMENT_TITLE";
    private static final String META_DATA_KEY_PARENT_FRAGMENT_CLASS =
        "com.android.settings.PARENT_FRAGMENT_CLASS";

    private static final String EXTRA_CLEAR_UI_OPTIONS = "settings:remove_ui_options";

    private static final String SAVE_KEY_CURRENT_HEADER = "com.android.settings.CURRENT_HEADER";
    private static final String SAVE_KEY_PARENT_HEADER = "com.android.settings.PARENT_HEADER";
    //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 start
    private static final String GSETTINGS_PROVIDER = "com.google.settings";
    //fix bug 210641 the text of "backup and reset" not appropriate ,when os did not support backup on 2013.9.4 send
    public static boolean UNIVERSEUI_SUPPORT = SystemProperties.getBoolean("universe_ui_support",false);
    public static final boolean CU_SUPPORT = SystemProperties.get("ro.operator").equals("cucc");

    private String mFragmentClass;
    private int mTopLevelHeaderId;
    private Header mFirstHeader;
    private Header mCurrentHeader;
    private Header mParentHeader;
    private boolean mInLocalHeaderSwitch;

    // Show only these settings for restricted users
    private int[] SETTINGS_FOR_RESTRICTED = {
            R.id.wifi_settings,
            R.id.bluetooth_settings,
            R.id.sound_settings,
            R.id.display_settings,
            R.id.security_settings,
            R.id.account_settings,
            R.id.about_settings
    };

    private boolean mEnableUserManagement = false;

    // TODO: Update Call Settings based on airplane mode state.

    protected HashMap<Integer, Integer> mHeaderIndexMap = new HashMap<Integer, Integer>();

    private AuthenticatorHelper mAuthenticatorHelper;
    private Header mLastHeader;
    private boolean mListeningToAccountUpdates;
    private boolean  mBluetoothEnable;
    private boolean  mVoiceCapable;

	// Start by luqiang, topwise, 2014.2.27 [wristwatch config]
	//private boolean mIsOpenWristwatchCfg = TopwiseProp.getDefaultSettingBoolean("topwise_open_wristwatch");
	private boolean mIsOpenWristwatchCfg = TopwiseProp.getDefaultSettingBoolean("topwise_wristwatch_unlock");
	// End by luqiang, topwise, 2014.2.27 [wristwatch config]

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        mBluetoothEnable = (SystemProperties.getInt("ro.tablet.bluetooth.enable", 1) != 0);
        mBluetoothEnable = (SystemProperties.getInt("ro.tablet.bluetooth.enable", 1) != 0);
        mVoiceCapable = getResources().getBoolean(com.android.internal.R.bool.config_voice_capable);
        if (getIntent().getBooleanExtra(EXTRA_CLEAR_UI_OPTIONS, false)) {
            getWindow().setUiOptions(0);
        }

        if (android.provider.Settings.Secure.getInt(getContentResolver(), "multiuser_enabled", -1)
                > 0) {
            mEnableUserManagement = true;
        }

        mAuthenticatorHelper = new AuthenticatorHelper();
        mAuthenticatorHelper.updateAuthDescriptions(this);
        mAuthenticatorHelper.onAccountsUpdated(this, null);

        getMetaData();
        mInLocalHeaderSwitch = true;
        //add by daiwei for tab
        if (getClass().getName().equals("com.android.settings.Settings")) {
        	setTheme(android.R.style.Theme_Holo_Light_NoActionBar);
        }
        //end by daiwei
        super.onCreate(savedInstanceState);
        mInLocalHeaderSwitch = false;

        //For LowCost case, define the list selector by itself
        if (LC_RAM_SUPPORT)
        	getListView().setSelector(R.drawable.list_selector_holo_dark);

        if (!onIsHidingHeaders() && onIsMultiPane()) {
            highlightHeader(mTopLevelHeaderId);
            // Force the title so that it doesn't get overridden by a direct launch of
            // a specific settings screen.
            setTitle(R.string.settings_label);
        }

        // Retrieve any saved state
        if (savedInstanceState != null) {
            mCurrentHeader = savedInstanceState.getParcelable(SAVE_KEY_CURRENT_HEADER);
            mParentHeader = savedInstanceState.getParcelable(SAVE_KEY_PARENT_HEADER);
        }

        // If the current header was saved, switch to it
        if (savedInstanceState != null && mCurrentHeader != null) {
            //switchToHeaderLocal(mCurrentHeader);
            showBreadCrumbs(mCurrentHeader.title, null);
        }

        if (mParentHeader != null) {
            setParentTitle(mParentHeader.title, null, new OnClickListener() {
                public void onClick(View v) {
                    switchToParent(mParentHeader.fragment);
                }
            });
        }

        // Override up navigation for multi-pane, since we handle it in the fragment breadcrumbs
        if (onIsMultiPane()) {
            getActionBar().setDisplayHomeAsUpEnabled(false);
            getActionBar().setHomeButtonEnabled(false);
        }
        
        //add by daiwei for tab setting
        if (getClass().getName().equals("com.android.settings.Settings")) {
        	setContentView(R.layout.tab_settings);
    		mTabCursor = (ImageView)findViewById(R.id.tab_cursor);
    		ViewPager viewPager = (ViewPager)findViewById(R.id.pager);
    		viewPager.setAdapter(new ViewPagerAdapter(getFragmentManager()));
    		viewPager.setOnPageChangeListener(mPageChangeListener);
    		mViewPager = viewPager;
    		
    		View tab_general = findViewById(R.id.tab_general);
    		View tab_display = findViewById(R.id.tab_display);
    		tab_general.setOnClickListener(mTabOnClickListener);
    		tab_display.setOnClickListener(mTabOnClickListener);
    		mTabGeneral = (TextView)tab_general;
    		mTabDisplay = (TextView)tab_display;
    		mTabGeneral.setTextColor(COLOR_SELECTED);
    		mTabGeneral.setTextSize(TEXT_SIZE_SELECTED);
        }
        //end by daiwei
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        // Save the current fragment, if it is the same as originally launched
        if (mCurrentHeader != null) {
            outState.putParcelable(SAVE_KEY_CURRENT_HEADER, mCurrentHeader);
        }
        if (mParentHeader != null) {
            outState.putParcelable(SAVE_KEY_PARENT_HEADER, mParentHeader);
        }
    }

    @Override
    public void onResume() {
        super.onResume();

        ListAdapter listAdapter = getListAdapter();
        if (listAdapter instanceof HeaderAdapter) {
            ((HeaderAdapter) listAdapter).resume();
        }
        invalidateHeaders();
        setActionBarStyle();//add by liweiping 20140210 for bug 173
    }
    
    //start by liweiping 20140210 for bug 173
    /* Set ActionBar with popup function */
    protected void setActionBarStyle() {
        ActionBar actionBar = getActionBar();
        if (actionBar == null){
            return;
        }
        if ( this.toString().contains("SubSettings") ) {
            actionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP, ActionBar.DISPLAY_HOME_AS_UP);
            actionBar.setDisplayHomeAsUpEnabled(true);
        }
        else {
            actionBar.setDisplayOptions(ActionBar.DISPLAY_HOME_AS_UP
                    ^ ActionBar.DISPLAY_HOME_AS_UP
                    , ActionBar.DISPLAY_HOME_AS_UP);
            actionBar.setDisplayHomeAsUpEnabled(false);
        }
    }
    //end by liweiping 20140210 

    @Override
    public void onPause() {
        super.onPause();

        ListAdapter listAdapter = getListAdapter();
        if (listAdapter instanceof HeaderAdapter) {
            ((HeaderAdapter) listAdapter).pause();
        }
    }

    private String getRunningActivityName() {
        ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        return activityManager != null ? activityManager.getRunningTasks(1).get(0).topActivity
                .getClassName() : null;
    }

    // fix bug 185285 to avoid jump out of Settings when Locale changed on 20130819 begin
    /*@Override
    public void onBackPressed() {
        if (!moveTaskToBack(false)) {
            super.onBackPressed();
        }
    }*/
    // fix bug 185285 to avoid jump out of Settings when Locale changed on 20130819 end

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (mListeningToAccountUpdates) {
            AccountManager.get(this).removeOnAccountsUpdatedListener(this);
        }
    }

    private void switchToHeaderLocal(Header header) {
        mInLocalHeaderSwitch = true;
        switchToHeader(header);
        mInLocalHeaderSwitch = false;
    }

    @Override
    public void switchToHeader(Header header) {
        if (!mInLocalHeaderSwitch) {
            mCurrentHeader = null;
            mParentHeader = null;
        }
        super.switchToHeader(header);
    }

    /**
     * Switch to parent fragment and store the grand parent's info
     * @param className name of the activity wrapper for the parent fragment.
     */
    private void switchToParent(String className) {
        final ComponentName cn = new ComponentName(this, className);
        try {
            final PackageManager pm = getPackageManager();
            final ActivityInfo parentInfo = pm.getActivityInfo(cn, PackageManager.GET_META_DATA);

            if (parentInfo != null && parentInfo.metaData != null) {
                String fragmentClass = parentInfo.metaData.getString(META_DATA_KEY_FRAGMENT_CLASS);
                CharSequence fragmentTitle = parentInfo.loadLabel(pm);
                Header parentHeader = new Header();
                parentHeader.fragment = fragmentClass;
                parentHeader.title = fragmentTitle;
                mCurrentHeader = parentHeader;

                switchToHeaderLocal(parentHeader);
                highlightHeader(mTopLevelHeaderId);

                mParentHeader = new Header();
                mParentHeader.fragment
                        = parentInfo.metaData.getString(META_DATA_KEY_PARENT_FRAGMENT_CLASS);
                mParentHeader.title = parentInfo.metaData.getString(META_DATA_KEY_PARENT_TITLE);
            }
        } catch (NameNotFoundException nnfe) {
            Log.w(LOG_TAG, "Could not find parent activity : " + className);
        }
    }

    @Override
    public void onNewIntent(Intent intent) {
        super.onNewIntent(intent);

        // If it is not launched from history, then reset to top-level
        if ((intent.getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) == 0
                && mFirstHeader != null && !onIsHidingHeaders() && onIsMultiPane()) {
            switchToHeaderLocal(mFirstHeader);
        }
    }

    private void highlightHeader(int id) {
        if (id != 0) {
            Integer index = mHeaderIndexMap.get(id);
            if (index != null) {
                getListView().setItemChecked(index, true);
                getListView().smoothScrollToPosition(index);
            }
        }
    }

    @Override
    public Intent getIntent() {
        Intent superIntent = super.getIntent();
        String startingFragment = getStartingFragmentClass(superIntent);
        // This is called from super.onCreate, isMultiPane() is not yet reliable
        // Do not use onIsHidingHeaders either, which relies itself on this method
        if (startingFragment != null && !onIsMultiPane()) {
            Intent modIntent = new Intent(superIntent);
            modIntent.putExtra(EXTRA_SHOW_FRAGMENT, startingFragment);
            Bundle args = superIntent.getExtras();
            if (args != null) {
                args = new Bundle(args);
            } else {
                args = new Bundle();
            }
            args.putParcelable("intent", superIntent);
            modIntent.putExtra(EXTRA_SHOW_FRAGMENT_ARGUMENTS, superIntent.getExtras());
            return modIntent;
        }
        return superIntent;
    }

    /**
     * Checks if the component name in the intent is different from the Settings class and
     * returns the class name to load as a fragment.
     */
    protected String getStartingFragmentClass(Intent intent) {
        if (mFragmentClass != null) return mFragmentClass;

        String intentClass = intent.getComponent().getClassName();
        if (intentClass.equals(getClass().getName())) return null;

        if ("com.android.settings.ManageApplications".equals(intentClass)
                || "com.android.settings.RunningServices".equals(intentClass)
                || "com.android.settings.applications.StorageUse".equals(intentClass)) {
            // Old names of manage apps.
            intentClass = com.android.settings.applications.ManageApplications.class.getName();
        }

        return intentClass;
    }

    /**
     * Override initial header when an activity-alias is causing Settings to be launched
     * for a specific fragment encoded in the android:name parameter.
     */
    @Override
    public Header onGetInitialHeader() {
        String fragmentClass = getStartingFragmentClass(super.getIntent());
        if (fragmentClass != null) {
            Header header = new Header();
            header.fragment = fragmentClass;
            header.title = getTitle();
            header.fragmentArguments = getIntent().getExtras();
            mCurrentHeader = header;
            return header;
        }

        return mFirstHeader;
    }

    @Override
    public Intent onBuildStartFragmentIntent(String fragmentName, Bundle args,
            int titleRes, int shortTitleRes) {
        Intent intent = super.onBuildStartFragmentIntent(fragmentName, args,
                titleRes, shortTitleRes);

        // some fragments want to avoid split actionbar
        if (DataUsageSummary.class.getName().equals(fragmentName) ||
                PowerUsageSummary.class.getName().equals(fragmentName) ||
                AccountSyncSettings.class.getName().equals(fragmentName) ||
                UserDictionarySettings.class.getName().equals(fragmentName) ||
                Memory.class.getName().equals(fragmentName) ||
                ManageApplications.class.getName().equals(fragmentName) ||
                WirelessSettings.class.getName().equals(fragmentName) ||
                SoundSettings.class.getName().equals(fragmentName) ||
                PrivacySettings.class.getName().equals(fragmentName) ||
                // SPRD: Modify 20130830 Spreadst of Bug 207441 clipboard can not be called
                UserDictionaryAddWordFragment.class.getName().equals(fragmentName) ||
                ManageAccountsSettings.class.getName().equals(fragmentName)) {
            intent.putExtra(EXTRA_CLEAR_UI_OPTIONS, true);
        }
        //fix bug 226565 select englisg in userdictoryaddwors, rotate, the language change to chinses on 20131012 begin
        intent.setClass(this, SubSettings.class);
        /* 
        // fix bug 194403 to make the activity execute onCreate() method when orientation changed on 20130802 begin
        Log.i(LOG_TAG,"fragmentName = " + fragmentName);
        if (UserDictionaryAddWordFragment.class.getName().equals(fragmentName)) {
            intent.setClass(this, LanguageSubSettings.class);
        } else {
            intent.setClass(this, SubSettings.class);
        }
        // fix bug 194403 to make the activity execute onCreate() method when orientation changed on 20130802 end
        */
        // fix bug 226565 select englisg in userdictoryaddwors, rotate, the language change to chinses on 20131012 end
        return intent;
    }

    /**
     * Populate the activity with the top-level headers.
     */
    @Override
    public void onBuildHeaders(List<Header> headers) {
        if(UNIVERSEUI_SUPPORT){
            loadHeadersFromResource(R.xml.settings_headers_uui, headers);
        }else{
            loadHeadersFromResource(R.xml.settings_headers, headers);
        }

        updateHeaderList(headers);
    }

    private void updateHeaderList(List<Header> target) {
        int i = 0;
        boolean IsSupVoice = Settings.this.getResources().getBoolean(com.android.internal.R.bool.
config_voice_capable);
        while (i < target.size()) {
            Header header = target.get(i);
            // Ids are integers, so downcasting
            int id = (int) header.id;
            if (id == R.id.dock_settings) {
                if (!needsDockSettings())
                    target.remove(header);
            } else if (id == R.id.operator_settings || id == R.id.manufacturer_settings) {
                Utils.updateHeaderToSpecificActivityFromMetaDataOrRemove(this, target, header);
            } else if (id == R.id.wifi_settings) {
                // Remove WiFi Settings if WiFi service is not available.
                // Start by changyan 2014.01.02
                //if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI)) {
                if (!SystemProperties.getBoolean("ro.device.support.wifi", true)) {                    
                //End by changyan 
                    target.remove(header);
                }
            } else if (id == R.id.bluetooth_settings) {
                //Start by changyan 2014.01.03
                // Remove Bluetooth Settings if Bluetooth service is not available.
                //if ((!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH))
                //        || (!mBluetoothEnable)) {
                if (!SystemProperties.getBoolean("ro.device.support.bt", true)) {
                //End by changyan   
                    target.remove(header);
                }
            } else if (id == R.id.data_usage_settings) {
                // Remove data usage when kernel module not enabled
                final INetworkManagementService netManager = INetworkManagementService.Stub
                        .asInterface(ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE));
                // fix bug 182580 to delete the data usage item of settings on 20130717 begin
                boolean support_cmcc = SystemProperties.get("ro.operator").equals("cmcc");
                try {
                    if (!netManager.isBandwidthControlEnabled() || support_cmcc) {
                        target.remove(header);
                    }
                } catch (RemoteException e) {
                    // ignored
                }
                // fix bug 182580 to delete the data usage item of settings on 20130717 end
            } else if (id == R.id.account_settings) {
                int headerIndex = i + 1;
                i = insertAccountsHeaders(target, headerIndex);
            } else if (id == R.id.user_settings) {
                if (!mEnableUserManagement
                        || !UserId.MU_ENABLED || UserId.myUserId() != 0
                        || !getResources().getBoolean(R.bool.enable_user_management)
                        || Utils.isMonkeyRunning()) {
                    target.remove(header);
                }
            } else if (id == R.id.dual_sim_settings) {
                if (!TelephonyManager.isMultiSim() || (!mVoiceCapable)) {
                    target.remove(header);
                }
            } else if (id == R.id.network_preference_settings) {
                if (!CU_SUPPORT) {
                    target.remove(header);
                }
            }
            else if (id == R.id.sound_settings && IsSupVoice)
            {
                target.remove(header);
            }
            else if (id == R.id.audio_profiles && !IsSupVoice)
            {
                target.remove(header);
            }

			// Start by luqiang, topwise, 2014.2.27 [wristwatch config]
			else if (id == R.id.wristwatch_settings && false == mIsOpenWristwatchCfg) {
				target.remove(header);
			}
			// End by luqiang, topwise, 2014.2.27 [wristwatch config]

            if (UserId.MU_ENABLED && UserId.myUserId() != 0
                    && !ArrayUtils.contains(SETTINGS_FOR_RESTRICTED, id)) {
                target.remove(header);
            }

            // Increment if the current one wasn't removed by the Utils code.
            if (target.get(i) == header) {
                // Hold on to the first header, when we need to reset to the top-level
                if (mFirstHeader == null &&
                        HeaderAdapter.getHeaderType(header) != HeaderAdapter.HEADER_TYPE_CATEGORY) {
                    mFirstHeader = header;
                }
                mHeaderIndexMap.put(id, i);
                i++;
            }
        }
    }

    private int insertAccountsHeaders(List<Header> target, int headerIndex) {
        String[] accountTypes = mAuthenticatorHelper.getEnabledAccountTypes();
        List<Header> accountHeaders = new ArrayList<Header>(accountTypes.length);
        for (String accountType : accountTypes) {
	    if (accountType.startsWith("sprd")) {
		continue;
	    }
            CharSequence label = mAuthenticatorHelper.getLabelForType(this, accountType);
            if (label == null) {
                continue;
            }

            Account[] accounts = AccountManager.get(this).getAccountsByType(accountType);
            boolean skipToAccount = accounts.length == 1
                    && !mAuthenticatorHelper.hasAccountPreferences(accountType);
            Header accHeader = new Header();
            accHeader.title = label;
            if (accHeader.extras == null) {
                accHeader.extras = new Bundle();
            }
            if (skipToAccount) {
                accHeader.breadCrumbTitleRes = R.string.account_sync_settings_title;
                accHeader.breadCrumbShortTitleRes = R.string.account_sync_settings_title;
                accHeader.fragment = AccountSyncSettings.class.getName();
                accHeader.fragmentArguments = new Bundle();
                // Need this for the icon
                accHeader.extras.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE, accountType);
                accHeader.extras.putParcelable(AccountSyncSettings.ACCOUNT_KEY, accounts[0]);
                accHeader.fragmentArguments.putParcelable(AccountSyncSettings.ACCOUNT_KEY,
                        accounts[0]);
            } else {
                accHeader.breadCrumbTitle = label;
                accHeader.breadCrumbShortTitle = label;
                accHeader.fragment = ManageAccountsSettings.class.getName();
                accHeader.fragmentArguments = new Bundle();
                accHeader.extras.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE, accountType);
                accHeader.fragmentArguments.putString(ManageAccountsSettings.KEY_ACCOUNT_TYPE,
                        accountType);
                if (!isMultiPane()) {
                    accHeader.fragmentArguments.putString(ManageAccountsSettings.KEY_ACCOUNT_LABEL,
                            label.toString());
                }
            }
            accountHeaders.add(accHeader);
        }

        // Sort by label
        Collections.sort(accountHeaders, new Comparator<Header>() {
            @Override
            public int compare(Header h1, Header h2) {
                return h1.title.toString().compareTo(h2.title.toString());
            }
        });

        for (Header header : accountHeaders) {
            target.add(headerIndex++, header);
        }
        if (!mListeningToAccountUpdates) {
            AccountManager.get(this).addOnAccountsUpdatedListener(this, null, true);
            mListeningToAccountUpdates = true;
        }
        return headerIndex;
    }

    private boolean needsDockSettings() {
        return getResources().getBoolean(R.bool.has_dock_settings);
    }

    private void getMetaData() {
        try {
            ActivityInfo ai = getPackageManager().getActivityInfo(getComponentName(),
                    PackageManager.GET_META_DATA);
            if (ai == null || ai.metaData =http://www.mamicode.com/= null) return;>