Check if default launcher is the system ADWLauncher

package com.android.settings;

import java.util.List;

import android.util.Log;

import android.os.Bundle;

import android.content.Intent;

import android.content.pm.ApplicationInfo;

import android.content.pm.ActivityInfo;

import android.content.pm.ResolveInfo;

import android.preference.Preference;

import android.preference.PreferenceActivity;

import android.preference.PreferenceGroup;

import android.telephony.TelephonyManager;

import android.content.pm.PackageManager;

public class Settings extends PreferenceActivity {

        PreferenceGroup parent = (PreferenceGroup) findPreference(KEY_PARENT);

        Utils.updatePreferenceToSpecificActivityOrRemove(this, parent, KEY_SYNC_SETTINGS, 0);

        Utils.updatePreferenceToSpecificActivityOrRemove(this, parent, KEY_SEARCH_SETTINGS, 0);

		Utils.updatePreferenceToSpecificActivityOrRemove(this, parent, KEY_LAUNCHER, 0);

		Utils.updatePreferenceToSpecificActivityOrRemove(this, parent, KEY_SPARE_PARTS, 0);

		Intent intent = new Intent();

		intent.setAction("android.intent.action.MAIN");

		intent.addCategory("android.intent.category.HOME");

		boolean found = true;

		List<ResolveInfo> l = getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);

		if ( l.size() > 1 ){

			found = false;

			for (ResolveInfo r: l){

 				if (r.activityInfo != null){

 			   		Log.d("Settings", " - " + r.activityInfo.name + " : " + r.isDefault);

					if (r.activityInfo.name.equals("com.android.launcher.Launcher") ){

						if (r.isDefault ){

							found = true;

						}

					}

				}

			}

		}

		if (!found){

        	Preference launcherSettings = parent.findPreference(KEY_LAUNCHER);

        	parent.removePreference(launcherSettings);

		} else {

			// Now check is system ADW.Launcher and not Market

			Utils.updatePreferenceToSpecificActivityOrRemove(this, parent, KEY_LAUNCHER, 0);

		}

        Preference dockSettings = parent.findPreference(KEY_DOCK_SETTINGS);

        if (getResources().getBoolean(R.bool.has_dock_settings) == false && dockSettings != null) {

            parent.removePreference(dockSettings);