src/com/android/phone/EditPhoneNumberPreference.java - platform/packages/services/Telephony - 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.phone;

 import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.TypedArray;
 import android.preference.EditTextPreference;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.telephony.PhoneNumberUtils;
 import android.text.TextUtils;
 import android.text.method.ArrowKeyMovementMethod;
 import android.text.method.DialerKeyListener;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.ImageButton;
 import android.widget.TextView;

 public class EditPhoneNumberPreference extends EditTextPreference {

     //allowed modes for this preference.
     /** simple confirmation (OK / CANCEL) */
     private static final int CM_CONFIRM = 0;
     /** toggle [(ENABLE / CANCEL) or (DISABLE / CANCEL)], use isToggled() to see requested state.*/
     private static final int CM_ACTIVATION = 1;

     private int mConfirmationMode;

     //String constants used in storing the value of the preference
     // The preference is backed by a string that holds the encoded value, which reads:
     //  <VALUE_ON | VALUE_OFF><VALUE_SEPARATOR><mPhoneNumber>
     // for example, an enabled preference with a number of 6502345678 would read:
     //  "1:6502345678"
     private static final String VALUE_SEPARATOR = ":";
     private static final String VALUE_OFF = "0";
     private static final String VALUE_ON = "1";

     //UI layout
     private ImageButton mContactPickButton;

     //Listeners
     /** Called when focus is changed between fields */
     private View.OnFocusChangeListener mDialogFocusChangeListener;
     /** Called when the Dialog is closed. */
     private OnDialogClosedListener mDialogOnClosedListener;
     /**
      * Used to indicate that we are going to request for a
      * default number. for the dialog.
      */
     private GetDefaultNumberListener mGetDefaultNumberListener;

     //Activity values
     private Activity mParentActivity;
     private Intent mContactListIntent;
     /** Arbitrary activity-assigned preference id value */
     private int mPrefId;

     //similar to toggle preference
     private CharSequence mEnableText;
     private CharSequence mDisableText;
     private CharSequence mChangeNumberText;
     private CharSequence mSummaryOn;
     private CharSequence mSummaryOff;

     // button that was clicked on dialog close.
     private int mButtonClicked;

     //relevant (parsed) value of the mText
     private String mPhoneNumber;
     private boolean mChecked;


     /**
      * Interface for the dialog closed listener, related to
      * DialogPreference.onDialogClosed(), except we also pass in a buttonClicked
      * value indicating which of the three possible buttons were pressed.
      */
     interface OnDialogClosedListener {
         void onDialogClosed(EditPhoneNumberPreference preference, int buttonClicked);
     }

     /**
      * Interface for the default number setting listener.  Handles requests for
      * the default display number for the dialog.
      */
     interface GetDefaultNumberListener {
         /**
          * Notify that we are looking for a default display value.
          * @return null if there is no contribution from this interface,
          *  indicating that the orignal value of mPhoneNumber should be
          *  displayed unchanged.
          */
         String onGetDefaultNumber(EditPhoneNumberPreference preference);
     }

     /*
      * Constructors
      */
     public EditPhoneNumberPreference(Context context, AttributeSet attrs) {
         super(context, attrs);

         setDialogLayoutResource(R.layout.pref_dialog_editphonenumber);

         //create intent to bring up contact list
         mContactListIntent = new Intent(Intent.ACTION_GET_CONTENT);
         mContactListIntent.setType(Phone.CONTENT_ITEM_TYPE);

         //get the edit phone number default settings
         TypedArray a = context.obtainStyledAttributes(attrs,
                 R.styleable.EditPhoneNumberPreference, 0, R.style.EditPhoneNumberPreference);
         mEnableText = a.getString(R.styleable.EditPhoneNumberPreference_enableButtonText);
         mDisableText = a.getString(R.styleable.EditPhoneNumberPreference_disableButtonText);
         mChangeNumberText = a.getString(R.styleable.EditPhoneNumberPreference_changeNumButtonText);
         mConfirmationMode = a.getInt(R.styleable.EditPhoneNumberPreference_confirmMode, 0);
         a.recycle();

         //get the summary settings, use CheckBoxPreference as the standard.
         a = context.obtainStyledAttributes(attrs, android.R.styleable.CheckBoxPreference, 0, 0);
         mSummaryOn = a.getString(android.R.styleable.CheckBoxPreference_summaryOn);
         mSummaryOff = a.getString(android.R.styleable.CheckBoxPreference_summaryOff);
         a.recycle();
     }

     public EditPhoneNumberPreference(Context context) {
         this(context, null);
     }


     /*
      * Methods called on UI bindings
      */
     @Override
     //called when we're binding the view to the preference.
     protected void onBindView(View view) {
         super.onBindView(view);

         // Sync the summary view
         TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
         if (summaryView != null) {
             CharSequence sum;
             int vis;

             //set summary depending upon mode
             if (mConfirmationMode == CM_ACTIVATION) {
                 if (mChecked) {
                     sum = (mSummaryOn == null) ? getSummary() : mSummaryOn;
                 } else {
                     sum = (mSummaryOff == null) ? getSummary() : mSummaryOff;
                 }
             } else {
                 sum = getSummary();
             }

             if (sum != null) {
                 summaryView.setText(sum);
                 vis = View.VISIBLE;
             } else {
                 vis = View.GONE;
             }

             if (vis != summaryView.getVisibility()) {
                 summaryView.setVisibility(vis);
             }
         }
     }

     //called when we're binding the dialog to the preference's view.
     @Override
     protected void onBindDialogView(View view) {
         // default the button clicked to be the cancel button.
         mButtonClicked = DialogInterface.BUTTON_NEGATIVE;

         super.onBindDialogView(view);

         //get the edittext component within the number field
         EditText editText = getEditText();
         //get the contact pick button within the number field
         mContactPickButton = (ImageButton) view.findViewById(R.id.select_contact);

         //setup number entry
         if (editText != null) {
             // see if there is a means to get a default number,
             // and set it accordingly.
             if (mGetDefaultNumberListener != null) {
                 String defaultNumber = mGetDefaultNumberListener.onGetDefaultNumber(this);
                 if (defaultNumber != null) {
                     mPhoneNumber = defaultNumber;
                 }
             }
             editText.setText(mPhoneNumber);
             editText.setMovementMethod(ArrowKeyMovementMethod.getInstance());
             editText.setKeyListener(DialerKeyListener.getInstance());
             editText.setOnFocusChangeListener(mDialogFocusChangeListener);
         }

         //set contact picker
         if (mContactPickButton != null) {
             mContactPickButton.setOnClickListener(new View.OnClickListener() {
                 public void onClick(View v) {
                     if (mParentActivity != null) {
                         mParentActivity.startActivityForResult(mContactListIntent, mPrefId);
                     }
                 }
             });
         }
     }

     /**
      * Overriding EditTextPreference's onAddEditTextToDialogView.
      *
      * This method attaches the EditText to the container specific to this
      * preference's dialog layout.
      */
     @Override
     protected void onAddEditTextToDialogView(View dialogView, EditText editText) {

         // look for the container object
         ViewGroup container = (ViewGroup) dialogView
                 .findViewById(R.id.edit_container);

         // add the edittext to the container.
         if (container != null) {
             container.addView(editText, ViewGroup.LayoutParams.MATCH_PARENT,
                     ViewGroup.LayoutParams.WRAP_CONTENT);
         }
     }

     //control the appearance of the dialog depending upon the mode.
     @Override
     protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
         // modified so that we just worry about the buttons being
         // displayed, since there is no need to hide the edittext
         // field anymore.
         if (mConfirmationMode == CM_ACTIVATION) {
             if (mChecked) {
                 builder.setPositiveButton(mChangeNumberText, this);
                 builder.setNeutralButton(mDisableText, this);
             } else {
                 builder.setPositiveButton(null, null);
                 builder.setNeutralButton(mEnableText, this);
             }
         }
         // set the call icon on the title.
         builder.setIcon(R.mipmap.ic_launcher_phone);
     }


     /*
      * Listeners and other state setting methods
      */
     //set the on focus change listener to be assigned to the Dialog's edittext field.
     public void setDialogOnFocusChangeListener(View.OnFocusChangeListener l) {
         mDialogFocusChangeListener = l;
     }

     //set the listener to be called wht the dialog is closed.
     public void setDialogOnClosedListener(OnDialogClosedListener l) {
         mDialogOnClosedListener = l;
     }

     //set the link back to the parent activity, so that we may run the contact picker.
     public void setParentActivity(Activity parent, int identifier) {
         mParentActivity = parent;
         mPrefId = identifier;
         mGetDefaultNumberListener = null;
     }

     //set the link back to the parent activity, so that we may run the contact picker.
     //also set the default number listener.
     public void setParentActivity(Activity parent, int identifier, GetDefaultNumberListener l) {
         mParentActivity = parent;
         mPrefId = identifier;
         mGetDefaultNumberListener = l;
     }

     /*
      * Notification handlers
      */
     //Notify the preference that the pick activity is complete.
     public void onPickActivityResult(String pickedValue) {
         EditText editText = getEditText();
         if (editText != null) {
             editText.setText(pickedValue);
         }
     }

     //called when the dialog is clicked.
     @Override
     public void onClick(DialogInterface dialog, int which) {
         // The neutral button (button3) is always the toggle.
         if ((mConfirmationMode == CM_ACTIVATION) && (which == DialogInterface.BUTTON_NEUTRAL)) {
             //flip the toggle if we are in the correct mode.
             setToggled(!isToggled());
         }
         // record the button that was clicked.
         mButtonClicked = which;
         super.onClick(dialog, which);
     }

     @Override
     //When the dialog is closed, perform the relevant actions, including setting
     // phone numbers and calling the close action listener.
     protected void onDialogClosed(boolean positiveResult) {
         // A positive result is technically either button1 or button3.
         if ((mButtonClicked == DialogInterface.BUTTON_POSITIVE) ||
                 (mButtonClicked == DialogInterface.BUTTON_NEUTRAL)){
             setPhoneNumber(getEditText().getText().toString());
             super.onDialogClosed(positiveResult);
             setText(getStringValue());
         } else {
             super.onDialogClosed(positiveResult);
         }

         // send the clicked button over to the listener.
         if (mDialogOnClosedListener != null) {
             mDialogOnClosedListener.onDialogClosed(this, mButtonClicked);
         }
     }


     /*
      * Toggle handling code.
      */
     //return the toggle value.
     public boolean isToggled() {
         return mChecked;
     }

     //set the toggle value.
     // return the current preference to allow for chaining preferences.
     public EditPhoneNumberPreference setToggled(boolean checked) {
         mChecked = checked;
         setText(getStringValue());
         notifyChanged();

         return this;
     }


     /**
      * Phone number handling code
      */
     public String getPhoneNumber() {
         // return the phone number, after it has been stripped of all
         // irrelevant text.
         return PhoneNumberUtils.stripSeparators(mPhoneNumber);
     }

     /** The phone number including any formatting characters */
     protected String getRawPhoneNumber() {
         return mPhoneNumber;
     }

     //set the phone number value.
     // return the current preference to allow for chaining preferences.
     public EditPhoneNumberPreference setPhoneNumber(String number) {
         mPhoneNumber = number;
         setText(getStringValue());
         notifyChanged();

         return this;
     }


     /*
      * Other code relevant to preference framework
      */
     //when setting default / initial values, make sure we're setting things correctly.
     @Override
     protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
         setValueFromString(restoreValue ? getPersistedString(getStringValue())
                 : (String) defaultValue);
     }

     /**
      * Decides how to disable dependents.
      */
     @Override
     public boolean shouldDisableDependents() {
         // There is really only one case we care about, but for consistency
         // we fill out the dependency tree for all of the cases.  If this
         // is in activation mode (CF), we look for the encoded toggle value
         // in the string.  If this in confirm mode (VM), then we just
         // examine the number field.
         // Note: The toggle value is stored in the string in an encoded
         // manner (refer to setValueFromString and getStringValue below).
         boolean shouldDisable = false;
         if ((mConfirmationMode == CM_ACTIVATION) && (mEncodedText != null)) {
             String[] inValues = mEncodedText.split(":", 2);
             shouldDisable = inValues[0].equals(VALUE_ON);
         } else {
             shouldDisable = (TextUtils.isEmpty(mPhoneNumber) && (mConfirmationMode == CM_CONFIRM));
         }
         return shouldDisable;
     }

     /**
      * Override persistString so that we can get a hold of the EditTextPreference's
      * text field.
      */
     private String mEncodedText = null;
     @Override
     protected boolean persistString(String value) {
         mEncodedText = value;
         return super.persistString(value);
     }


     /*
      * Summary On handling code
      */
     //set the Summary for the on state (relevant only in CM_ACTIVATION mode)
     public EditPhoneNumberPreference setSummaryOn(CharSequence summary) {
         mSummaryOn = summary;
         if (isToggled()) {
             notifyChanged();
         }
         return this;
     }

     //set the Summary for the on state, given a string resource id
     // (relevant only in CM_ACTIVATION mode)
     public EditPhoneNumberPreference setSummaryOn(int summaryResId) {
         return setSummaryOn(getContext().getString(summaryResId));
     }

     //get the summary string for the on state
     public CharSequence getSummaryOn() {
         return mSummaryOn;
     }


     /*
      * Summary Off handling code
      */
     //set the Summary for the off state (relevant only in CM_ACTIVATION mode)
     public EditPhoneNumberPreference setSummaryOff(CharSequence summary) {
         mSummaryOff = summary;
         if (!isToggled()) {
             notifyChanged();
         }
         return this;
     }

     //set the Summary for the off state, given a string resource id
     // (relevant only in CM_ACTIVATION mode)
     public EditPhoneNumberPreference setSummaryOff(int summaryResId) {
         return setSummaryOff(getContext().getString(summaryResId));
     }

     //get the summary string for the off state
     public CharSequence getSummaryOff() {
         return mSummaryOff;
     }


     /*
      * Methods to get and set from encoded strings.
      */
     //set the values given an encoded string.
     protected void setValueFromString(String value) {
         String[] inValues = value.split(":", 2);
         setToggled(inValues[0].equals(VALUE_ON));
         setPhoneNumber(inValues[1]);
     }

     //retrieve the state of this preference in the form of an encoded string
     protected String getStringValue() {
         return ((isToggled() ? VALUE_ON : VALUE_OFF) + VALUE_SEPARATOR + getPhoneNumber());
     }

     /**
      * Externally visible method to bring up the dialog.
      *
      * Generally used when we are navigating the user to this preference.
      */
     public void showPhoneNumberDialog() {
         showDialog(null);
     }
 }
	/*
	* 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.phone;

	import android.app.Activity;
	import android.app.AlertDialog;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.res.TypedArray;
	import android.preference.EditTextPreference;
	import android.provider.ContactsContract.CommonDataKinds.Phone;
	import android.telephony.PhoneNumberUtils;
	import android.text.TextUtils;
	import android.text.method.ArrowKeyMovementMethod;
	import android.text.method.DialerKeyListener;
	import android.util.AttributeSet;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.EditText;
	import android.widget.ImageButton;
	import android.widget.TextView;

	public class EditPhoneNumberPreference extends EditTextPreference {

	//allowed modes for this preference.
	/** simple confirmation (OK / CANCEL) */
	private static final int CM_CONFIRM = 0;
	/** toggle [(ENABLE / CANCEL) or (DISABLE / CANCEL)], use isToggled() to see requested state.*/
	private static final int CM_ACTIVATION = 1;

	private int mConfirmationMode;

	//String constants used in storing the value of the preference
	// The preference is backed by a string that holds the encoded value, which reads:
	// <VALUE_ON \| VALUE_OFF><VALUE_SEPARATOR><mPhoneNumber>
	// for example, an enabled preference with a number of 6502345678 would read:
	// "1:6502345678"
	private static final String VALUE_SEPARATOR = ":";
	private static final String VALUE_OFF = "0";
	private static final String VALUE_ON = "1";

	//UI layout
	private ImageButton mContactPickButton;

	//Listeners
	/** Called when focus is changed between fields */
	private View.OnFocusChangeListener mDialogFocusChangeListener;
	/** Called when the Dialog is closed. */
	private OnDialogClosedListener mDialogOnClosedListener;
	/**
	* Used to indicate that we are going to request for a
	* default number. for the dialog.
	*/
	private GetDefaultNumberListener mGetDefaultNumberListener;

	//Activity values
	private Activity mParentActivity;
	private Intent mContactListIntent;
	/** Arbitrary activity-assigned preference id value */
	private int mPrefId;

	//similar to toggle preference
	private CharSequence mEnableText;
	private CharSequence mDisableText;
	private CharSequence mChangeNumberText;
	private CharSequence mSummaryOn;
	private CharSequence mSummaryOff;

	// button that was clicked on dialog close.
	private int mButtonClicked;

	//relevant (parsed) value of the mText
	private String mPhoneNumber;
	private boolean mChecked;


	/**
	* Interface for the dialog closed listener, related to
	* DialogPreference.onDialogClosed(), except we also pass in a buttonClicked
	* value indicating which of the three possible buttons were pressed.
	*/
	interface OnDialogClosedListener {
	void onDialogClosed(EditPhoneNumberPreference preference, int buttonClicked);
	}

	/**
	* Interface for the default number setting listener. Handles requests for
	* the default display number for the dialog.
	*/
	interface GetDefaultNumberListener {
	/**
	* Notify that we are looking for a default display value.
	* @return null if there is no contribution from this interface,
	* indicating that the orignal value of mPhoneNumber should be
	* displayed unchanged.
	*/
	String onGetDefaultNumber(EditPhoneNumberPreference preference);
	}

	/*
	* Constructors
	*/
	public EditPhoneNumberPreference(Context context, AttributeSet attrs) {
	super(context, attrs);

	setDialogLayoutResource(R.layout.pref_dialog_editphonenumber);

	//create intent to bring up contact list
	mContactListIntent = new Intent(Intent.ACTION_GET_CONTENT);
	mContactListIntent.setType(Phone.CONTENT_ITEM_TYPE);

	//get the edit phone number default settings
	TypedArray a = context.obtainStyledAttributes(attrs,
	R.styleable.EditPhoneNumberPreference, 0, R.style.EditPhoneNumberPreference);
	mEnableText = a.getString(R.styleable.EditPhoneNumberPreference_enableButtonText);
	mDisableText = a.getString(R.styleable.EditPhoneNumberPreference_disableButtonText);
	mChangeNumberText = a.getString(R.styleable.EditPhoneNumberPreference_changeNumButtonText);
	mConfirmationMode = a.getInt(R.styleable.EditPhoneNumberPreference_confirmMode, 0);
	a.recycle();

	//get the summary settings, use CheckBoxPreference as the standard.
	a = context.obtainStyledAttributes(attrs, android.R.styleable.CheckBoxPreference, 0, 0);
	mSummaryOn = a.getString(android.R.styleable.CheckBoxPreference_summaryOn);
	mSummaryOff = a.getString(android.R.styleable.CheckBoxPreference_summaryOff);
	a.recycle();
	}

	public EditPhoneNumberPreference(Context context) {
	this(context, null);
	}


	/*
	* Methods called on UI bindings
	*/
	@Override
	//called when we're binding the view to the preference.
	protected void onBindView(View view) {
	super.onBindView(view);

	// Sync the summary view
	TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
	if (summaryView != null) {
	CharSequence sum;
	int vis;

	//set summary depending upon mode
	if (mConfirmationMode == CM_ACTIVATION) {
	if (mChecked) {
	sum = (mSummaryOn == null) ? getSummary() : mSummaryOn;
	} else {
	sum = (mSummaryOff == null) ? getSummary() : mSummaryOff;
	}
	} else {
	sum = getSummary();
	}

	if (sum != null) {
	summaryView.setText(sum);
	vis = View.VISIBLE;
	} else {
	vis = View.GONE;
	}

	if (vis != summaryView.getVisibility()) {
	summaryView.setVisibility(vis);
	}
	}
	}

	//called when we're binding the dialog to the preference's view.
	@Override
	protected void onBindDialogView(View view) {
	// default the button clicked to be the cancel button.
	mButtonClicked = DialogInterface.BUTTON_NEGATIVE;

	super.onBindDialogView(view);

	//get the edittext component within the number field
	EditText editText = getEditText();
	//get the contact pick button within the number field
	mContactPickButton = (ImageButton) view.findViewById(R.id.select_contact);

	//setup number entry
	if (editText != null) {
	// see if there is a means to get a default number,
	// and set it accordingly.
	if (mGetDefaultNumberListener != null) {
	String defaultNumber = mGetDefaultNumberListener.onGetDefaultNumber(this);
	if (defaultNumber != null) {
	mPhoneNumber = defaultNumber;
	}
	}
	editText.setText(mPhoneNumber);
	editText.setMovementMethod(ArrowKeyMovementMethod.getInstance());
	editText.setKeyListener(DialerKeyListener.getInstance());
	editText.setOnFocusChangeListener(mDialogFocusChangeListener);
	}

	//set contact picker
	if (mContactPickButton != null) {
	mContactPickButton.setOnClickListener(new View.OnClickListener() {
	public void onClick(View v) {
	if (mParentActivity != null) {
	mParentActivity.startActivityForResult(mContactListIntent, mPrefId);
	}
	}
	});
	}
	}

	/**
	* Overriding EditTextPreference's onAddEditTextToDialogView.
	*
	* This method attaches the EditText to the container specific to this
	* preference's dialog layout.
	*/
	@Override
	protected void onAddEditTextToDialogView(View dialogView, EditText editText) {

	// look for the container object
	ViewGroup container = (ViewGroup) dialogView
	.findViewById(R.id.edit_container);

	// add the edittext to the container.
	if (container != null) {
	container.addView(editText, ViewGroup.LayoutParams.MATCH_PARENT,
	ViewGroup.LayoutParams.WRAP_CONTENT);
	}
	}

	//control the appearance of the dialog depending upon the mode.
	@Override
	protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
	// modified so that we just worry about the buttons being
	// displayed, since there is no need to hide the edittext
	// field anymore.
	if (mConfirmationMode == CM_ACTIVATION) {
	if (mChecked) {
	builder.setPositiveButton(mChangeNumberText, this);
	builder.setNeutralButton(mDisableText, this);
	} else {
	builder.setPositiveButton(null, null);
	builder.setNeutralButton(mEnableText, this);
	}
	}
	// set the call icon on the title.
	builder.setIcon(R.mipmap.ic_launcher_phone);
	}


	/*
	* Listeners and other state setting methods
	*/
	//set the on focus change listener to be assigned to the Dialog's edittext field.
	public void setDialogOnFocusChangeListener(View.OnFocusChangeListener l) {
	mDialogFocusChangeListener = l;
	}

	//set the listener to be called wht the dialog is closed.
	public void setDialogOnClosedListener(OnDialogClosedListener l) {
	mDialogOnClosedListener = l;
	}

	//set the link back to the parent activity, so that we may run the contact picker.
	public void setParentActivity(Activity parent, int identifier) {
	mParentActivity = parent;
	mPrefId = identifier;
	mGetDefaultNumberListener = null;
	}

	//set the link back to the parent activity, so that we may run the contact picker.
	//also set the default number listener.
	public void setParentActivity(Activity parent, int identifier, GetDefaultNumberListener l) {
	mParentActivity = parent;
	mPrefId = identifier;
	mGetDefaultNumberListener = l;
	}

	/*
	* Notification handlers
	*/
	//Notify the preference that the pick activity is complete.
	public void onPickActivityResult(String pickedValue) {
	EditText editText = getEditText();
	if (editText != null) {
	editText.setText(pickedValue);
	}
	}

	//called when the dialog is clicked.
	@Override
	public void onClick(DialogInterface dialog, int which) {
	// The neutral button (button3) is always the toggle.
	if ((mConfirmationMode == CM_ACTIVATION) && (which == DialogInterface.BUTTON_NEUTRAL)) {
	//flip the toggle if we are in the correct mode.
	setToggled(!isToggled());
	}
	// record the button that was clicked.
	mButtonClicked = which;
	super.onClick(dialog, which);
	}

	@Override
	//When the dialog is closed, perform the relevant actions, including setting
	// phone numbers and calling the close action listener.
	protected void onDialogClosed(boolean positiveResult) {
	// A positive result is technically either button1 or button3.
	if ((mButtonClicked == DialogInterface.BUTTON_POSITIVE) \|\|
	(mButtonClicked == DialogInterface.BUTTON_NEUTRAL)){
	setPhoneNumber(getEditText().getText().toString());
	super.onDialogClosed(positiveResult);
	setText(getStringValue());
	} else {
	super.onDialogClosed(positiveResult);
	}

	// send the clicked button over to the listener.
	if (mDialogOnClosedListener != null) {
	mDialogOnClosedListener.onDialogClosed(this, mButtonClicked);
	}
	}


	/*
	* Toggle handling code.
	*/
	//return the toggle value.
	public boolean isToggled() {
	return mChecked;
	}

	//set the toggle value.
	// return the current preference to allow for chaining preferences.
	public EditPhoneNumberPreference setToggled(boolean checked) {
	mChecked = checked;
	setText(getStringValue());
	notifyChanged();

	return this;
	}


	/**
	* Phone number handling code
	*/
	public String getPhoneNumber() {
	// return the phone number, after it has been stripped of all
	// irrelevant text.
	return PhoneNumberUtils.stripSeparators(mPhoneNumber);
	}

	/** The phone number including any formatting characters */
	protected String getRawPhoneNumber() {
	return mPhoneNumber;
	}

	//set the phone number value.
	// return the current preference to allow for chaining preferences.
	public EditPhoneNumberPreference setPhoneNumber(String number) {
	mPhoneNumber = number;
	setText(getStringValue());
	notifyChanged();

	return this;
	}


	/*
	* Other code relevant to preference framework
	*/
	//when setting default / initial values, make sure we're setting things correctly.
	@Override
	protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
	setValueFromString(restoreValue ? getPersistedString(getStringValue())
	: (String) defaultValue);
	}

	/**
	* Decides how to disable dependents.
	*/
	@Override
	public boolean shouldDisableDependents() {
	// There is really only one case we care about, but for consistency
	// we fill out the dependency tree for all of the cases. If this
	// is in activation mode (CF), we look for the encoded toggle value
	// in the string. If this in confirm mode (VM), then we just
	// examine the number field.
	// Note: The toggle value is stored in the string in an encoded
	// manner (refer to setValueFromString and getStringValue below).
	boolean shouldDisable = false;
	if ((mConfirmationMode == CM_ACTIVATION) && (mEncodedText != null)) {
	String[] inValues = mEncodedText.split(":", 2);
	shouldDisable = inValues[0].equals(VALUE_ON);
	} else {
	shouldDisable = (TextUtils.isEmpty(mPhoneNumber) && (mConfirmationMode == CM_CONFIRM));
	}
	return shouldDisable;
	}

	/**
	* Override persistString so that we can get a hold of the EditTextPreference's
	* text field.
	*/
	private String mEncodedText = null;
	@Override
	protected boolean persistString(String value) {
	mEncodedText = value;
	return super.persistString(value);
	}


	/*
	* Summary On handling code
	*/
	//set the Summary for the on state (relevant only in CM_ACTIVATION mode)
	public EditPhoneNumberPreference setSummaryOn(CharSequence summary) {
	mSummaryOn = summary;
	if (isToggled()) {
	notifyChanged();
	}
	return this;
	}

	//set the Summary for the on state, given a string resource id
	// (relevant only in CM_ACTIVATION mode)
	public EditPhoneNumberPreference setSummaryOn(int summaryResId) {
	return setSummaryOn(getContext().getString(summaryResId));
	}

	//get the summary string for the on state
	public CharSequence getSummaryOn() {
	return mSummaryOn;
	}


	/*
	* Summary Off handling code
	*/
	//set the Summary for the off state (relevant only in CM_ACTIVATION mode)
	public EditPhoneNumberPreference setSummaryOff(CharSequence summary) {
	mSummaryOff = summary;
	if (!isToggled()) {
	notifyChanged();
	}
	return this;
	}

	//set the Summary for the off state, given a string resource id
	// (relevant only in CM_ACTIVATION mode)
	public EditPhoneNumberPreference setSummaryOff(int summaryResId) {
	return setSummaryOff(getContext().getString(summaryResId));
	}

	//get the summary string for the off state
	public CharSequence getSummaryOff() {
	return mSummaryOff;
	}


	/*
	* Methods to get and set from encoded strings.
	*/
	//set the values given an encoded string.
	protected void setValueFromString(String value) {
	String[] inValues = value.split(":", 2);
	setToggled(inValues[0].equals(VALUE_ON));
	setPhoneNumber(inValues[1]);
	}

	//retrieve the state of this preference in the form of an encoded string
	protected String getStringValue() {
	return ((isToggled() ? VALUE_ON : VALUE_OFF) + VALUE_SEPARATOR + getPhoneNumber());
	}

	/**
	* Externally visible method to bring up the dialog.
	*
	* Generally used when we are navigating the user to this preference.
	*/
	public void showPhoneNumberDialog() {
	showDialog(null);
	}
	}