Launches the Location setting as fragment

import android.accounts.OnAccountsUpdateListener;

import android.app.ActionBar;

import android.app.Activity;

import android.app.ActivityManager;

import android.app.ActivityManagerNative;

import android.content.ContentResolver;

import android.content.Context;

import android.content.Intent;

import android.content.SyncAdapterType;

import android.content.SyncInfo;

import android.preference.Preference;

import android.preference.PreferenceActivity;

import android.preference.PreferenceScreen;

import android.text.format.DateFormat;

import android.util.Log;

import android.view.Gravity;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.CompoundButton;

import android.widget.ListView;

import android.widget.Switch;

import android.widget.TextView;

import com.android.settings.AccountPreference;

import com.android.settings.R;

import com.android.settings.Settings;

import com.android.settings.Utils;

import com.android.settings.location.LocationSettings;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashSet;

/** Manages settings for Google Account. */

public class ManageAccountsSettings extends AccountPreferenceBase

        implements OnAccountsUpdateListener {

    private String[] mAuthorities;

    private TextView mErrorInfoView;

    private SettingsDialogFragment mDialogFragment;

    // If an account type is set, then show only accounts of that type

    private String mAccountType;

    // Temporary hack, to deal with backward compatibility 

        }

    }

    /** Listens to a preference click event and starts a fragment */

    private class FragmentStarter

            implements Preference.OnPreferenceClickListener {

        private final String mClass;

        private final int mTitleRes;

        /**

         * @param className the class name of the fragment to be started.

         * @param title the title resource id of the started preference panel.

         */

        public FragmentStarter(String className, int title) {

            mClass = className;

            mTitleRes = title;

        }

        @Override

        public boolean onPreferenceClick(Preference preference) {

            ((PreferenceActivity) getActivity()).startPreferencePanel(

                    mClass, null, mTitleRes, null, null, 0);

            return true;

        }

    }

    /**

     * Filters through the preference list provided by GoogleLoginService.

     *

     * This method removes all the invalid intent from the list, adds account name as extra into the

     * intent, and hack the location settings to start it as a fragment.

     */

    private void updatePreferenceIntents(PreferenceScreen prefs) {

        PackageManager pm = getActivity().getPackageManager();

        for (int i = 0; i < prefs.getPreferenceCount();) {

            Intent intent = prefs.getPreference(i).getIntent();

            Preference pref = prefs.getPreference(i);

            Intent intent = pref.getIntent();

            if (intent != null) {

                // Hack. Launch "Location" as fragment instead of as activity.

                //

                // When "Location" is launched as activity via Intent, there's no "Up" button at the

                // top left, and if there's another running instance of "Location" activity, the

                // back stack would usually point to some other place so the user won't be able to

                // go back to the previous page by "back" key. Using fragment is a much easier

                // solution to those problems.

                //

                // If we set Intent to null and assign a fragment to the PreferenceScreen item here,

                // in order to make it work as expected, we still need to modify the container

                // PreferenceActivity, override onPreferenceStartFragment() and call

                // startPreferencePanel() there. In order to inject the title string there, more

                // dirty further hack is still needed. It's much easier and cleaner to listen to

                // preference click event here directly.

                if (intent.getAction().equals(

                        android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)) {

                    // The OnPreferenceClickListener overrides the click event completely. No intent

                    // will get fired.

                    pref.setOnPreferenceClickListener(new FragmentStarter(

                            LocationSettings.class.getName(),

                            R.string.location_settings_title));

                } else {

                    ResolveInfo ri = pm.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);

                    if (ri == null) {

                    prefs.removePreference(prefs.getPreference(i));

                        prefs.removePreference(pref);

                        continue;

                    } else {

                        intent.putExtra(ACCOUNT_KEY, mFirstAccount);

                        intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);

                    }

                }

            }

            i++;

        }

    }