src/com/android/settings/DateTimeSettingsSetupWizard.java - platform/packages/apps/Settings - Git at Google

 /*
  * 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.Activity;
 import android.app.AlarmManager;
 import android.app.Fragment;
 import android.app.FragmentTransaction;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.os.Bundle;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
 import android.util.Log;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.Window;
 import android.view.inputmethod.InputMethodManager;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.Button;
 import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;
 import android.widget.DatePicker;
 import android.widget.LinearLayout;
 import android.widget.ListPopupWindow;
 import android.widget.SimpleAdapter;
 import android.widget.TextView;
 import android.widget.TimePicker;

 import java.util.Calendar;
 import java.util.TimeZone;

 public class DateTimeSettingsSetupWizard extends Activity
         implements OnClickListener, OnItemClickListener, OnCheckedChangeListener,
         PreferenceFragment.OnPreferenceStartFragmentCallback {
     private static final String TAG = DateTimeSettingsSetupWizard.class.getSimpleName();

     // force the first status of auto datetime flag.
     private static final String EXTRA_INITIAL_AUTO_DATETIME_VALUE =
             "extra_initial_auto_datetime_value";

     // If we have enough screen real estate, we use a radically different layout with
     // big date and time pickers right on the screen, which requires very different handling.
     // Otherwise, we use the standard date time settings fragment.
     private boolean mUsingXLargeLayout;

     /* Available only in XL */
     private CompoundButton mAutoDateTimeButton;
     // private CompoundButton mAutoTimeZoneButton;

     private Button mTimeZoneButton;
     private ListPopupWindow mTimeZonePopup;
     private SimpleAdapter mTimeZoneAdapter;
     private TimeZone mSelectedTimeZone;

     private TimePicker mTimePicker;
     private DatePicker mDatePicker;
     private InputMethodManager mInputMethodManager;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         requestWindowFeature(Window.FEATURE_NO_TITLE);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.date_time_settings_setupwizard);

         // we know we've loaded the special xlarge layout because it has controls
         // not present in the standard layout
         mUsingXLargeLayout = findViewById(R.id.time_zone_button) != null;
         if (mUsingXLargeLayout) {
             initUiForXl();
         } else {
             findViewById(R.id.next_button).setOnClickListener(this);
         }
         mTimeZoneAdapter = ZonePicker.constructTimezoneAdapter(this, false,
             R.layout.date_time_setup_custom_list_item_2);

         // For the normal view, disable Back since changes stick immediately
         // and can't be canceled, and we already have a Next button. For xLarge,
         // though, we save up our changes and set them upon Next, so Back can
         // cancel. And also, in xlarge, we need the keyboard dismiss button
         // to be available.
         if (!mUsingXLargeLayout) {
             final View layoutRoot = findViewById(R.id.layout_root);
             layoutRoot.setSystemUiVisibility(View.STATUS_BAR_DISABLE_BACK);
         }
     }

     public void initUiForXl() {
         // Currently just comment out codes related to auto timezone.
         // TODO: Remove them when we are sure they are unnecessary.
         /*
         final boolean autoTimeZoneEnabled = isAutoTimeZoneEnabled();
         mAutoTimeZoneButton = (CompoundButton)findViewById(R.id.time_zone_auto);
         mAutoTimeZoneButton.setChecked(autoTimeZoneEnabled);
         mAutoTimeZoneButton.setOnCheckedChangeListener(this);
         mAutoTimeZoneButton.setText(autoTimeZoneEnabled ? R.string.zone_auto_summaryOn :
                 R.string.zone_auto_summaryOff);*/

         final TimeZone tz = TimeZone.getDefault();
         mSelectedTimeZone = tz;
         mTimeZoneButton = (Button)findViewById(R.id.time_zone_button);
         mTimeZoneButton.setText(tz.getDisplayName());
         // mTimeZoneButton.setText(DateTimeSettings.getTimeZoneText(tz));
         mTimeZoneButton.setOnClickListener(this);

         final boolean autoDateTimeEnabled;
         final Intent intent = getIntent();
         if (intent.hasExtra(EXTRA_INITIAL_AUTO_DATETIME_VALUE)) {
             autoDateTimeEnabled = intent.getBooleanExtra(EXTRA_INITIAL_AUTO_DATETIME_VALUE, false);
         } else {
             autoDateTimeEnabled = isAutoDateTimeEnabled();
         }

         mAutoDateTimeButton = (CompoundButton)findViewById(R.id.date_time_auto_button);
         mAutoDateTimeButton.setChecked(autoDateTimeEnabled);
         mAutoDateTimeButton.setOnCheckedChangeListener(this);

         mTimePicker = (TimePicker)findViewById(R.id.time_picker);
         mTimePicker.setEnabled(!autoDateTimeEnabled);
         mDatePicker = (DatePicker)findViewById(R.id.date_picker);
         mDatePicker.setEnabled(!autoDateTimeEnabled);
         mDatePicker.setCalendarViewShown(false);

         mInputMethodManager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);

         ((Button)findViewById(R.id.next_button)).setOnClickListener(this);
         final Button skipButton = (Button)findViewById(R.id.skip_button);
         if (skipButton != null) {
             skipButton.setOnClickListener(this);
         }
     }

     @Override
     public void onResume() {
         super.onResume();
         IntentFilter filter = new IntentFilter();
         filter.addAction(Intent.ACTION_TIME_TICK);
         filter.addAction(Intent.ACTION_TIME_CHANGED);
         filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
         registerReceiver(mIntentReceiver, filter, null, null);
     }

     @Override
     public void onPause() {
         super.onPause();
         unregisterReceiver(mIntentReceiver);
     }

     @Override
     public void onClick(View view) {
         switch (view.getId()) {
         case R.id.time_zone_button: {
             showTimezonePicker(R.id.time_zone_button);
             break;
         }
         case R.id.next_button: {
             if (mSelectedTimeZone != null) {
                 final TimeZone systemTimeZone = TimeZone.getDefault();
                 if (!systemTimeZone.equals(mSelectedTimeZone)) {
                     Log.i(TAG, "Another TimeZone is selected by a user. Changing system TimeZone.");
                     final AlarmManager alarm = (AlarmManager)
                             getSystemService(Context.ALARM_SERVICE);
                     alarm.setTimeZone(mSelectedTimeZone.getID());
                 }
             }
             if (mAutoDateTimeButton != null) {
                 Settings.Global.putInt(getContentResolver(), Settings.Global.AUTO_TIME,
                       mAutoDateTimeButton.isChecked() ? 1 : 0);
                 if (!mAutoDateTimeButton.isChecked()) {
                     DateTimeSettings.setDate(this, mDatePicker.getYear(), mDatePicker.getMonth(),
                             mDatePicker.getDayOfMonth());
                     DateTimeSettings.setTime(this,
                             mTimePicker.getCurrentHour(), mTimePicker.getCurrentMinute());
                 }
             }
         }  // $FALL-THROUGH$
         case R.id.skip_button: {
             setResult(RESULT_OK);
             finish();
             break;
         }
         }
     }

     @Override
     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
         final boolean autoEnabled = isChecked;  // just for readibility.
         /*if (buttonView == mAutoTimeZoneButton) {
             // In XL screen, we save all the state only when the next button is pressed.
             if (!mUsingXLargeLayout) {
                 Settings.Global.putInt(getContentResolver(),
                         Settings.Global.AUTO_TIME_ZONE,
                         isChecked ? 1 : 0);
             }
             mTimeZone.setEnabled(!autoEnabled);
             if (isChecked) {
                 findViewById(R.id.current_time_zone).setVisibility(View.VISIBLE);
                 findViewById(R.id.zone_picker).setVisibility(View.GONE);
             }
         } else */
         if (buttonView == mAutoDateTimeButton) {
             Settings.Global.putInt(getContentResolver(),
                     Settings.Global.AUTO_TIME,
                     isChecked ? 1 : 0);
             mTimePicker.setEnabled(!autoEnabled);
             mDatePicker.setEnabled(!autoEnabled);
         }
         if (autoEnabled) {
             final View focusedView = getCurrentFocus();
             if (focusedView != null) {
                 mInputMethodManager.hideSoftInputFromWindow(focusedView.getWindowToken(), 0);
                 focusedView.clearFocus();
             }
         }
     }

     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
         final TimeZone tz = ZonePicker.obtainTimeZoneFromItem(parent.getItemAtPosition(position));
         if (mUsingXLargeLayout) {
             mSelectedTimeZone = tz;
             final Calendar now = Calendar.getInstance(tz);
             if (mTimeZoneButton != null) {
                 mTimeZoneButton.setText(tz.getDisplayName());
             }
             // mTimeZoneButton.setText(DateTimeSettings.getTimeZoneText(tz));
             mDatePicker.updateDate(now.get(Calendar.YEAR), now.get(Calendar.MONTH),
                     now.get(Calendar.DAY_OF_MONTH));
             mTimePicker.setCurrentHour(now.get(Calendar.HOUR_OF_DAY));
             mTimePicker.setCurrentMinute(now.get(Calendar.MINUTE));
         } else {
             // in prefs mode, we actually change the setting right now, as opposed to waiting
             // until Next is pressed in xLarge mode
             final AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
             alarm.setTimeZone(tz.getID());
             DateTimeSettings settingsFragment = (DateTimeSettings) getFragmentManager().
                     findFragmentById(R.id.date_time_settings_fragment);
             settingsFragment.updateTimeAndDateDisplay(this);
         }
         mTimeZonePopup.dismiss();
     }

     /**
      * If this is called, that means we're in prefs style portrait mode for a large display
      * and the user has tapped on the time zone preference. If we were a PreferenceActivity,
      * we'd then launch the timezone fragment in a new activity, but we aren't, and here
      * on a tablet display, we really want more of a popup picker look' like the one we use
      * for the xlarge version of this activity. So we just take this opportunity to launch that.
      *
      * TODO: For phones, we might want to change this to do the "normal" opening
      * of the zonepicker fragment in its own activity. Or we might end up just
      * creating a separate DateTimeSettingsSetupWizardPhone activity that subclasses
      * PreferenceActivity in the first place to handle all that automatically.
      */
     @Override
     public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
         showTimezonePicker(R.id.timezone_dropdown_anchor);
         return true;
     }

     private void showTimezonePicker(int anchorViewId) {
         View anchorView = findViewById(anchorViewId);
         if (anchorView == null) {
             Log.e(TAG, "Unable to find zone picker anchor view " + anchorViewId);
             return;
         }
         mTimeZonePopup = new ListPopupWindow(this, null);
         mTimeZonePopup.setWidth(anchorView.getWidth());
         mTimeZonePopup.setAnchorView(anchorView);
         mTimeZonePopup.setAdapter(mTimeZoneAdapter);
         mTimeZonePopup.setOnItemClickListener(this);
         mTimeZonePopup.setModal(true);
         mTimeZonePopup.show();
     }

     private boolean isAutoDateTimeEnabled() {
         try {
             return Settings.Global.getInt(getContentResolver(), Settings.Global.AUTO_TIME) > 0;
         } catch (SettingNotFoundException e) {
             return true;
         }
     }

     /*
     private boolean isAutoTimeZoneEnabled() {
         try {
             return Settings.Global.getInt(getContentResolver(),
                     Settings.Global.AUTO_TIME_ZONE) > 0;
         } catch (SettingNotFoundException e) {
             return true;
         }
     }*/

     private void updateTimeAndDateDisplay() {
         if (!mUsingXLargeLayout) {
             return;
         }
         final Calendar now = Calendar.getInstance();
         mTimeZoneButton.setText(now.getTimeZone().getDisplayName());
         mDatePicker.updateDate(now.get(Calendar.YEAR), now.get(Calendar.MONTH),
                 now.get(Calendar.DAY_OF_MONTH));
         mTimePicker.setCurrentHour(now.get(Calendar.HOUR_OF_DAY));
         mTimePicker.setCurrentMinute(now.get(Calendar.MINUTE));
     }

     private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {
             updateTimeAndDateDisplay();
         }
     };
 }
	/*
	* 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.Activity;
	import android.app.AlarmManager;
	import android.app.Fragment;
	import android.app.FragmentTransaction;
	import android.content.BroadcastReceiver;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.content.pm.ActivityInfo;
	import android.content.res.Configuration;
	import android.os.Bundle;
	import android.preference.Preference;
	import android.preference.PreferenceFragment;
	import android.provider.Settings;
	import android.provider.Settings.SettingNotFoundException;
	import android.util.Log;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.view.Window;
	import android.view.inputmethod.InputMethodManager;
	import android.widget.AdapterView;
	import android.widget.AdapterView.OnItemClickListener;
	import android.widget.Button;
	import android.widget.CompoundButton;
	import android.widget.CompoundButton.OnCheckedChangeListener;
	import android.widget.DatePicker;
	import android.widget.LinearLayout;
	import android.widget.ListPopupWindow;
	import android.widget.SimpleAdapter;
	import android.widget.TextView;
	import android.widget.TimePicker;

	import java.util.Calendar;
	import java.util.TimeZone;

	public class DateTimeSettingsSetupWizard extends Activity
	implements OnClickListener, OnItemClickListener, OnCheckedChangeListener,
	PreferenceFragment.OnPreferenceStartFragmentCallback {
	private static final String TAG = DateTimeSettingsSetupWizard.class.getSimpleName();

	// force the first status of auto datetime flag.
	private static final String EXTRA_INITIAL_AUTO_DATETIME_VALUE =
	"extra_initial_auto_datetime_value";

	// If we have enough screen real estate, we use a radically different layout with
	// big date and time pickers right on the screen, which requires very different handling.
	// Otherwise, we use the standard date time settings fragment.
	private boolean mUsingXLargeLayout;

	/* Available only in XL */
	private CompoundButton mAutoDateTimeButton;
	// private CompoundButton mAutoTimeZoneButton;

	private Button mTimeZoneButton;
	private ListPopupWindow mTimeZonePopup;
	private SimpleAdapter mTimeZoneAdapter;
	private TimeZone mSelectedTimeZone;

	private TimePicker mTimePicker;
	private DatePicker mDatePicker;
	private InputMethodManager mInputMethodManager;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
	requestWindowFeature(Window.FEATURE_NO_TITLE);
	super.onCreate(savedInstanceState);
	setContentView(R.layout.date_time_settings_setupwizard);

	// we know we've loaded the special xlarge layout because it has controls
	// not present in the standard layout
	mUsingXLargeLayout = findViewById(R.id.time_zone_button) != null;
	if (mUsingXLargeLayout) {
	initUiForXl();
	} else {
	findViewById(R.id.next_button).setOnClickListener(this);
	}
	mTimeZoneAdapter = ZonePicker.constructTimezoneAdapter(this, false,
	R.layout.date_time_setup_custom_list_item_2);

	// For the normal view, disable Back since changes stick immediately
	// and can't be canceled, and we already have a Next button. For xLarge,
	// though, we save up our changes and set them upon Next, so Back can
	// cancel. And also, in xlarge, we need the keyboard dismiss button
	// to be available.
	if (!mUsingXLargeLayout) {
	final View layoutRoot = findViewById(R.id.layout_root);
	layoutRoot.setSystemUiVisibility(View.STATUS_BAR_DISABLE_BACK);
	}
	}

	public void initUiForXl() {
	// Currently just comment out codes related to auto timezone.
	// TODO: Remove them when we are sure they are unnecessary.
	/*
	final boolean autoTimeZoneEnabled = isAutoTimeZoneEnabled();
	mAutoTimeZoneButton = (CompoundButton)findViewById(R.id.time_zone_auto);
	mAutoTimeZoneButton.setChecked(autoTimeZoneEnabled);
	mAutoTimeZoneButton.setOnCheckedChangeListener(this);
	mAutoTimeZoneButton.setText(autoTimeZoneEnabled ? R.string.zone_auto_summaryOn :
	R.string.zone_auto_summaryOff);*/

	final TimeZone tz = TimeZone.getDefault();
	mSelectedTimeZone = tz;
	mTimeZoneButton = (Button)findViewById(R.id.time_zone_button);
	mTimeZoneButton.setText(tz.getDisplayName());
	// mTimeZoneButton.setText(DateTimeSettings.getTimeZoneText(tz));
	mTimeZoneButton.setOnClickListener(this);

	final boolean autoDateTimeEnabled;
	final Intent intent = getIntent();
	if (intent.hasExtra(EXTRA_INITIAL_AUTO_DATETIME_VALUE)) {
	autoDateTimeEnabled = intent.getBooleanExtra(EXTRA_INITIAL_AUTO_DATETIME_VALUE, false);
	} else {
	autoDateTimeEnabled = isAutoDateTimeEnabled();
	}

	mAutoDateTimeButton = (CompoundButton)findViewById(R.id.date_time_auto_button);
	mAutoDateTimeButton.setChecked(autoDateTimeEnabled);
	mAutoDateTimeButton.setOnCheckedChangeListener(this);

	mTimePicker = (TimePicker)findViewById(R.id.time_picker);
	mTimePicker.setEnabled(!autoDateTimeEnabled);
	mDatePicker = (DatePicker)findViewById(R.id.date_picker);
	mDatePicker.setEnabled(!autoDateTimeEnabled);
	mDatePicker.setCalendarViewShown(false);

	mInputMethodManager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);

	((Button)findViewById(R.id.next_button)).setOnClickListener(this);
	final Button skipButton = (Button)findViewById(R.id.skip_button);
	if (skipButton != null) {
	skipButton.setOnClickListener(this);
	}
	}

	@Override
	public void onResume() {
	super.onResume();
	IntentFilter filter = new IntentFilter();
	filter.addAction(Intent.ACTION_TIME_TICK);
	filter.addAction(Intent.ACTION_TIME_CHANGED);
	filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
	registerReceiver(mIntentReceiver, filter, null, null);
	}

	@Override
	public void onPause() {
	super.onPause();
	unregisterReceiver(mIntentReceiver);
	}

	@Override
	public void onClick(View view) {
	switch (view.getId()) {
	case R.id.time_zone_button: {
	showTimezonePicker(R.id.time_zone_button);
	break;
	}
	case R.id.next_button: {
	if (mSelectedTimeZone != null) {
	final TimeZone systemTimeZone = TimeZone.getDefault();
	if (!systemTimeZone.equals(mSelectedTimeZone)) {
	Log.i(TAG, "Another TimeZone is selected by a user. Changing system TimeZone.");
	final AlarmManager alarm = (AlarmManager)
	getSystemService(Context.ALARM_SERVICE);
	alarm.setTimeZone(mSelectedTimeZone.getID());
	}
	}
	if (mAutoDateTimeButton != null) {
	Settings.Global.putInt(getContentResolver(), Settings.Global.AUTO_TIME,
	mAutoDateTimeButton.isChecked() ? 1 : 0);
	if (!mAutoDateTimeButton.isChecked()) {
	DateTimeSettings.setDate(this, mDatePicker.getYear(), mDatePicker.getMonth(),
	mDatePicker.getDayOfMonth());
	DateTimeSettings.setTime(this,
	mTimePicker.getCurrentHour(), mTimePicker.getCurrentMinute());
	}
	}
	} // $FALL-THROUGH$
	case R.id.skip_button: {
	setResult(RESULT_OK);
	finish();
	break;
	}
	}
	}

	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	final boolean autoEnabled = isChecked; // just for readibility.
	/*if (buttonView == mAutoTimeZoneButton) {
	// In XL screen, we save all the state only when the next button is pressed.
	if (!mUsingXLargeLayout) {
	Settings.Global.putInt(getContentResolver(),
	Settings.Global.AUTO_TIME_ZONE,
	isChecked ? 1 : 0);
	}
	mTimeZone.setEnabled(!autoEnabled);
	if (isChecked) {
	findViewById(R.id.current_time_zone).setVisibility(View.VISIBLE);
	findViewById(R.id.zone_picker).setVisibility(View.GONE);
	}
	} else */
	if (buttonView == mAutoDateTimeButton) {
	Settings.Global.putInt(getContentResolver(),
	Settings.Global.AUTO_TIME,
	isChecked ? 1 : 0);
	mTimePicker.setEnabled(!autoEnabled);
	mDatePicker.setEnabled(!autoEnabled);
	}
	if (autoEnabled) {
	final View focusedView = getCurrentFocus();
	if (focusedView != null) {
	mInputMethodManager.hideSoftInputFromWindow(focusedView.getWindowToken(), 0);
	focusedView.clearFocus();
	}
	}
	}

	@Override
	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
	final TimeZone tz = ZonePicker.obtainTimeZoneFromItem(parent.getItemAtPosition(position));
	if (mUsingXLargeLayout) {
	mSelectedTimeZone = tz;
	final Calendar now = Calendar.getInstance(tz);
	if (mTimeZoneButton != null) {
	mTimeZoneButton.setText(tz.getDisplayName());
	}
	// mTimeZoneButton.setText(DateTimeSettings.getTimeZoneText(tz));
	mDatePicker.updateDate(now.get(Calendar.YEAR), now.get(Calendar.MONTH),
	now.get(Calendar.DAY_OF_MONTH));
	mTimePicker.setCurrentHour(now.get(Calendar.HOUR_OF_DAY));
	mTimePicker.setCurrentMinute(now.get(Calendar.MINUTE));
	} else {
	// in prefs mode, we actually change the setting right now, as opposed to waiting
	// until Next is pressed in xLarge mode
	final AlarmManager alarm = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
	alarm.setTimeZone(tz.getID());
	DateTimeSettings settingsFragment = (DateTimeSettings) getFragmentManager().
	findFragmentById(R.id.date_time_settings_fragment);
	settingsFragment.updateTimeAndDateDisplay(this);
	}
	mTimeZonePopup.dismiss();
	}

	/**
	* If this is called, that means we're in prefs style portrait mode for a large display
	* and the user has tapped on the time zone preference. If we were a PreferenceActivity,
	* we'd then launch the timezone fragment in a new activity, but we aren't, and here
	* on a tablet display, we really want more of a popup picker look' like the one we use
	* for the xlarge version of this activity. So we just take this opportunity to launch that.
	*
	* TODO: For phones, we might want to change this to do the "normal" opening
	* of the zonepicker fragment in its own activity. Or we might end up just
	* creating a separate DateTimeSettingsSetupWizardPhone activity that subclasses
	* PreferenceActivity in the first place to handle all that automatically.
	*/
	@Override
	public boolean onPreferenceStartFragment(PreferenceFragment caller, Preference pref) {
	showTimezonePicker(R.id.timezone_dropdown_anchor);
	return true;
	}

	private void showTimezonePicker(int anchorViewId) {
	View anchorView = findViewById(anchorViewId);
	if (anchorView == null) {
	Log.e(TAG, "Unable to find zone picker anchor view " + anchorViewId);
	return;
	}
	mTimeZonePopup = new ListPopupWindow(this, null);
	mTimeZonePopup.setWidth(anchorView.getWidth());
	mTimeZonePopup.setAnchorView(anchorView);
	mTimeZonePopup.setAdapter(mTimeZoneAdapter);
	mTimeZonePopup.setOnItemClickListener(this);
	mTimeZonePopup.setModal(true);
	mTimeZonePopup.show();
	}

	private boolean isAutoDateTimeEnabled() {
	try {
	return Settings.Global.getInt(getContentResolver(), Settings.Global.AUTO_TIME) > 0;
	} catch (SettingNotFoundException e) {
	return true;
	}
	}

	/*
	private boolean isAutoTimeZoneEnabled() {
	try {
	return Settings.Global.getInt(getContentResolver(),
	Settings.Global.AUTO_TIME_ZONE) > 0;
	} catch (SettingNotFoundException e) {
	return true;
	}
	}*/

	private void updateTimeAndDateDisplay() {
	if (!mUsingXLargeLayout) {
	return;
	}
	final Calendar now = Calendar.getInstance();
	mTimeZoneButton.setText(now.getTimeZone().getDisplayName());
	mDatePicker.updateDate(now.get(Calendar.YEAR), now.get(Calendar.MONTH),
	now.get(Calendar.DAY_OF_MONTH));
	mTimePicker.setCurrentHour(now.get(Calendar.HOUR_OF_DAY));
	mTimePicker.setCurrentMinute(now.get(Calendar.MINUTE));
	}

	private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
	@Override
	public void onReceive(Context context, Intent intent) {
	updateTimeAndDateDisplay();
	}
	};
	}