/*
* Copyright (C) 2007 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.contacts;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.Drawable;
import android.media.AudioManager;
import android.media.ToneGenerator;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.provider.Contacts.Intents.Insert;
import android.provider.Contacts.People;
import android.provider.Contacts.Phones;
import android.provider.Contacts.PhonesColumns;
import android.provider.Settings;
import android.telephony.PhoneNumberFormattingTextWatcher;
import android.telephony.PhoneNumberUtils;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.text.Editable;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.method.DialerKeyListener;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.android.internal.telephony.ITelephony;
/**
* Dialer activity that displays the typical twelve key interface.
*/
public class TwelveKeyDialer extends Activity implements View.OnClickListener,
View.OnLongClickListener, View.OnKeyListener,
AdapterView.OnItemClickListener, TextWatcher {
private static final String TAG = "TwelveKeyDialer";
private static final int STOP_TONE = 1;
/** The length of DTMF tones in milliseconds */
private static final int TONE_LENGTH_MS = 150;
/** The DTMF tone volume relative to other sounds in the stream */
private static final int TONE_RELATIVE_VOLUME = 50;
private EditText mDigits;
private View mDelete;
private MenuItem mAddToContactMenuItem;
private ToneGenerator mToneGenerator;
private Object mToneGeneratorLock = new Object();
private Drawable mDigitsBackground;
private Drawable mDigitsEmptyBackground;
private Drawable mDeleteBackground;
private Drawable mDeleteEmptyBackground;
private View mDigitsAndBackspace;
private View mDialpad;
private ListView mDialpadChooser;
private DialpadChooserAdapter mDialpadChooserAdapter;
// determines if we want to playback local DTMF tones.
private boolean mDTMFToneEnabled;
/** Identifier for the "Add Call" intent extra. */
static final String ADD_CALL_MODE_KEY = "add_call_mode";
/** Indicates if we are opening this dialer to add a call from the InCallScreen. */
private boolean mIsAddCallMode;
PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
/**
* Listen for phone state changes so that we can take down the
* "dialpad chooser" if the phone becomes idle while the
* chooser UI is visible.
*/
@Override
public void onCallStateChanged(int state, String incomingNumber) {
// Log.i(TAG, "PhoneStateListener.onCallStateChanged: "
// + state + ", '" + incomingNumber + "'");
if ((state == TelephonyManager.CALL_STATE_IDLE) && dialpadChooserVisible()) {
// Log.i(TAG, "Call ended with dialpad chooser visible! Taking it down...");
// Note there's a race condition in the UI here: the
// dialpad chooser could conceivably disappear (on its
// own) at the exact moment the user was trying to select
// one of the choices, which would be confusing. (But at
// least that's better than leaving the dialpad chooser
// onscreen, but useless...)
showDialpadChooser(false);
}
}
};
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// Do nothing
}
public void onTextChanged(CharSequence input, int start, int before, int changeCount) {
// Do nothing
// DTMF Tones do not need to be played here any longer -
// the DTMF dialer handles that functionality now.
}
public void afterTextChanged(Editable input) {
if (SpecialCharSequenceMgr.handleChars(this, input.toString(), mDigits)) {
// A special sequence was entered, clear the digits
mDigits.getText().clear();
}
// Set the proper background for the dial input area
if (mDigits.length() != 0) {
mDelete.setBackgroundDrawable(mDeleteBackground);
mDigits.setBackgroundDrawable(mDigitsBackground);
mDigits.setCompoundDrawablesWithIntrinsicBounds(
getResources().getDrawable(R.drawable.ic_dial_number), null, null, null);
} else {
mDelete.setBackgroundDrawable(mDeleteEmptyBackground);
mDigits.setBackgroundDrawable(mDigitsEmptyBackground);
mDigits.setCompoundDrawablesWithIntrinsicBounds(null, null, null, null);
}
}
@Override
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
// Set the content view
setContentView(getContentViewResource());
// Load up the resources for the text field and delete button
Resources r = getResources();
mDigitsBackground = r.getDrawable(R.drawable.btn_dial_textfield_active);
//mDigitsBackground.setDither(true);
mDigitsEmptyBackground = r.getDrawable(R.drawable.btn_dial_textfield);
//mDigitsEmptyBackground.setDither(true);
mDeleteBackground = r.getDrawable(R.drawable.btn_dial_delete_active);
//mDeleteBackground.setDither(true);
mDeleteEmptyBackground = r.getDrawable(R.drawable.btn_dial_delete);
//mDeleteEmptyBackground.setDither(true);
mDigits = (EditText) findViewById(R.id.digits);
mDigits.setKeyListener(DialerKeyListener.getInstance());
mDigits.setOnClickListener(this);
mDigits.setOnKeyListener(this);
maybeAddNumberFormatting();
// Check for the presence of the keypad
View view = findViewById(R.id.one);
if (view != null) {
setupKeypad();
}
view = findViewById(R.id.backspace);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
mDelete = view;
mDigitsAndBackspace = (View) findViewById(R.id.digitsAndBackspace);
mDialpad = (View) findViewById(R.id.dialpad); // This is null in landscape mode
// Set up the "dialpad chooser" UI; see showDialpadChooser().
mDialpadChooser = (ListView) findViewById(R.id.dialpadChooser);
mDialpadChooser.setOnItemClickListener(this);
if (!resolveIntent() && icicle != null) {
super.onRestoreInstanceState(icicle);
}
// If the mToneGenerator creation fails, just continue without it. It is
// a local audio signal, and is not as important as the dtmf tone itself.
synchronized (mToneGeneratorLock) {
if (mToneGenerator == null) {
try {
mToneGenerator = new ToneGenerator(AudioManager.STREAM_VOICE_CALL,
TONE_RELATIVE_VOLUME);
} catch (RuntimeException e) {
Log.w(TAG, "Exception caught while creating local tone generator: " + e);
mToneGenerator = null;
}
}
}
}
@Override
protected void onDestroy() {
super.onDestroy();
synchronized(mToneGeneratorLock) {
if (mToneGenerator != null) {
mToneStopper.removeMessages(STOP_TONE);
mToneGenerator.release();
mToneGenerator = null;
}
}
}
@Override
protected void onRestoreInstanceState(Bundle icicle) {
// Do nothing, state is restored in onCreate() if needed
}
protected void maybeAddNumberFormatting() {
mDigits.addTextChangedListener(new PhoneNumberFormattingTextWatcher());
}
/**
* Overridden by subclasses to control the resource used by the content view.
*/
protected int getContentViewResource() {
return R.layout.twelve_key_dialer;
}
private boolean resolveIntent() {
boolean ignoreState = false;
// Find the proper intent
final Intent intent;
if (isChild()) {
intent = getParent().getIntent();
ignoreState = intent.getBooleanExtra(DialtactsActivity.EXTRA_IGNORE_STATE, false);
} else {
intent = getIntent();
}
// Log.i(TAG, "==> resolveIntent(): intent: " + intent);
// by default we are not adding a call.
mIsAddCallMode = false;
// By default we don't show the "dialpad chooser" UI.
boolean needToShowDialpadChooser = false;
// Resolve the intent
final String action = intent.getAction();
if (Intent.ACTION_DIAL.equals(action) || Intent.ACTION_VIEW.equals(action)) {
// see if we are "adding a call" from the InCallScreen; false by default.
mIsAddCallMode = intent.getBooleanExtra(ADD_CALL_MODE_KEY, false);
Uri uri = intent.getData();
if (uri != null) {
if ("tel".equals(uri.getScheme())) {
// Put the requested number into the input area
String data = uri.getSchemeSpecificPart();
setFormattedDigits(data);
} else {
String type = intent.getType();
if (People.CONTENT_ITEM_TYPE.equals(type)
|| Phones.CONTENT_ITEM_TYPE.equals(type)) {
// Query the phone number
Cursor c = getContentResolver().query(intent.getData(),
new String[] {PhonesColumns.NUMBER}, null, null, null);
if (c != null) {
if (c.moveToFirst()) {
// Put the number into the input area
setFormattedDigits(c.getString(0));
}
c.close();
}
}
}
}
} else if (Intent.ACTION_MAIN.equals(action)) {
// The MAIN action means we're bringing up a blank dialer
// (e.g. by selecting the Home shortcut, or tabbing over from
// Contacts or Call log.)
//
// At this point, IF there's already an active call, there's a
// good chance that the user got here accidentally (but really
// wanted the in-call dialpad instead). So we bring up an
// intermediate UI to make the user confirm what they really
// want to do.
if (phoneIsInUse()) {
// Log.i(TAG, "resolveIntent(): phone is in use; showing dialpad chooser!");
needToShowDialpadChooser = true;
}
}
// Bring up the "dialpad chooser" IFF we need to make the user
// confirm which dialpad they really want.
showDialpadChooser(needToShowDialpadChooser);
return ignoreState;
}
protected void setFormattedDigits(String data) {
// strip the non-dialable numbers out of the data string.
String dialString = PhoneNumberUtils.extractNetworkPortion(data);
dialString = PhoneNumberUtils.formatNumber(dialString);
if (!TextUtils.isEmpty(dialString)) {
Editable digits = mDigits.getText();
digits.replace(0, digits.length(), dialString);
// for some reason this isn't getting called in the digits.replace call above..
// but in any case, this will make sure the background drawable looks right
afterTextChanged(digits);
}
}
@Override
protected void onNewIntent(Intent newIntent) {
setIntent(newIntent);
resolveIntent();
}
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// This can't be done in onCreate(), since the auto-restoring of the digits
// will play DTMF tones for all the old digits if it is when onRestoreSavedInstanceState()
// is called. This method will be called every time the activity is created, and
// will always happen after onRestoreSavedInstanceState().
mDigits.addTextChangedListener(this);
}
private void setupKeypad() {
// Setup the listeners for the buttons
View view = findViewById(R.id.one);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
findViewById(R.id.two).setOnClickListener(this);
findViewById(R.id.three).setOnClickListener(this);
findViewById(R.id.four).setOnClickListener(this);
findViewById(R.id.five).setOnClickListener(this);
findViewById(R.id.six).setOnClickListener(this);
findViewById(R.id.seven).setOnClickListener(this);
findViewById(R.id.eight).setOnClickListener(this);
findViewById(R.id.nine).setOnClickListener(this);
findViewById(R.id.star).setOnClickListener(this);
view = findViewById(R.id.zero);
view.setOnClickListener(this);
view.setOnLongClickListener(this);
findViewById(R.id.pound).setOnClickListener(this);
}
@Override
protected void onResume() {
super.onResume();
// retrieve the DTMF tone play back setting.
mDTMFToneEnabled = Settings.System.getInt(getContentResolver(),
Settings.System.DTMF_TONE_WHEN_DIALING, 1) == 1;
// if the mToneGenerator creation fails, just continue without it. It is
// a local audio signal, and is not as important as the dtmf tone itself.
synchronized(mToneGeneratorLock) {
if (mToneGenerator == null) {
try {
mToneGenerator = new ToneGenerator(AudioManager.STREAM_VOICE_CALL,
TONE_RELATIVE_VOLUME);
} catch (RuntimeException e) {
Log.w(TAG, "Exception caught while creating local tone generator: " + e);
mToneGenerator = null;
}
}
}
Activity parent = getParent();
// See if we were invoked with a DIAL intent. If we were, fill in the appropriate
// digits in the dialer field.
if (parent != null && parent instanceof DialtactsActivity) {
Uri dialUri = ((DialtactsActivity) parent).getAndClearDialUri();
if (dialUri != null) {
resolveIntent();
}
}
// While we're in the foreground, listen for phone state changes,
// purely so that we can take down the "dialpad chooser" if the
// phone becomes idle while the chooser UI is visible.
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE);
// Potentially show hint text in the mDigits field when the user
// hasn't typed any digits yet. (If there's already an active call,
// this hint text will remind the user that he's about to add a new
// call.)
//
// TODO: consider adding better UI for the case where *both* lines
// are currently in use. (Right now we let the user try to add
// another call, but that call is guaranteed to fail. Perhaps the
// entire dialer UI should be disabled instead.)
if (phoneIsInUse()) {
mDigits.setHint(R.string.dialerDialpadHintText);
} else {
// Common case; no hint necessary.
mDigits.setHint(null);
// Also, a sanity-check: the "dialpad chooser" UI should NEVER
// be visible if the phone is idle!
showDialpadChooser(false);
}
}
@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (hasFocus) {
// Hide soft keyboard, if visible (it's fugly over button dialer).
// The only known case where this will be true is when launching the dialer with
// ACTION_DIAL via a soft keyboard. we dismiss it here because we don't
// have a window token yet in onCreate / onNewIntent
InputMethodManager inputMethodManager = (InputMethodManager)
getSystemService(Context.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(mDigits.getWindowToken(), 0);
}
}
@Override
protected void onPause() {
super.onPause();
// Stop listening for phone state changes.
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
synchronized(mToneGeneratorLock) {
if (mToneGenerator != null) {
mToneStopper.removeMessages(STOP_TONE);
mToneGenerator.release();
mToneGenerator = null;
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
mAddToContactMenuItem = menu.add(0, 0, 0, R.string.recentCalls_addToContact)
.setIcon(android.R.drawable.ic_menu_add);
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
// We never show a menu if the "choose dialpad" UI is up.
if (dialpadChooserVisible()) {
return false;
}
CharSequence digits = mDigits.getText();
if (digits == null || !TextUtils.isGraphic(digits)) {
mAddToContactMenuItem.setVisible(false);
} else {
// Put the current digits string into an intent
Intent intent = new Intent(Intent.ACTION_INSERT_OR_EDIT);
intent.putExtra(Insert.PHONE, mDigits.getText());
intent.setType(People.CONTENT_ITEM_TYPE);
mAddToContactMenuItem.setIntent(intent);
mAddToContactMenuItem.setVisible(true);
}
return true;
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_CALL: {
long callPressDiff = SystemClock.uptimeMillis() - event.getDownTime();
if (callPressDiff >= ViewConfiguration.getLongPressTimeout()) {
// Launch voice dialer
Intent intent = new Intent(Intent.ACTION_VOICE_COMMAND);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
}
}
return true;
}
case KeyEvent.KEYCODE_1: {
long timeDiff = SystemClock.uptimeMillis() - event.getDownTime();
if (timeDiff >= ViewConfiguration.getLongPressTimeout()) {
// Long press detected, call voice mail
callVoicemail();
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_CALL: {
if (mIsAddCallMode && (TextUtils.isEmpty(mDigits.getText().toString()))) {
// if we are adding a call from the InCallScreen and the phone
// number entered is empty, we just close the dialer to expose
// the InCallScreen under it.
finish();
} else {
// otherwise, we place the call.
placeCall();
}
return true;
}
}
return super.onKeyUp(keyCode, event);
}
private void keyPressed(int keyCode) {
KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode);
mDigits.onKeyDown(keyCode, event);
}
public boolean onKey(View view, int keyCode, KeyEvent event) {
switch (view.getId()) {
case R.id.digits:
if (keyCode == KeyEvent.KEYCODE_ENTER) {
placeCall();
return true;
}
break;
}
return false;
}
public void onClick(View view) {
switch (view.getId()) {
case R.id.one: {
playTone(ToneGenerator.TONE_DTMF_1);
keyPressed(KeyEvent.KEYCODE_1);
return;
}
case R.id.two: {
playTone(ToneGenerator.TONE_DTMF_2);
keyPressed(KeyEvent.KEYCODE_2);
return;
}
case R.id.three: {
playTone(ToneGenerator.TONE_DTMF_3);
keyPressed(KeyEvent.KEYCODE_3);
return;
}
case R.id.four: {
playTone(ToneGenerator.TONE_DTMF_4);
keyPressed(KeyEvent.KEYCODE_4);
return;
}
case R.id.five: {
playTone(ToneGenerator.TONE_DTMF_5);
keyPressed(KeyEvent.KEYCODE_5);
return;
}
case R.id.six: {
playTone(ToneGenerator.TONE_DTMF_6);
keyPressed(KeyEvent.KEYCODE_6);
return;
}
case R.id.seven: {
playTone(ToneGenerator.TONE_DTMF_7);
keyPressed(KeyEvent.KEYCODE_7);
return;
}
case R.id.eight: {
playTone(ToneGenerator.TONE_DTMF_8);
keyPressed(KeyEvent.KEYCODE_8);
return;
}
case R.id.nine: {
playTone(ToneGenerator.TONE_DTMF_9);
keyPressed(KeyEvent.KEYCODE_9);
return;
}
case R.id.zero: {
playTone(ToneGenerator.TONE_DTMF_0);
keyPressed(KeyEvent.KEYCODE_0);
return;
}
case R.id.pound: {
playTone(ToneGenerator.TONE_DTMF_P);
keyPressed(KeyEvent.KEYCODE_POUND);
return;
}
case R.id.star: {
playTone(ToneGenerator.TONE_DTMF_S);
keyPressed(KeyEvent.KEYCODE_STAR);
return;
}
case R.id.backspace: {
keyPressed(KeyEvent.KEYCODE_DEL);
return;
}
case R.id.digits: {
placeCall();
return;
}
}
}
public boolean onLongClick(View view) {
final Editable digits = mDigits.getText();
int id = view.getId();
switch (id) {
case R.id.backspace: {
digits.clear();
return true;
}
case R.id.one: {
if (digits.length() == 0) {
callVoicemail();
return true;
}
return false;
}
case R.id.zero: {
keyPressed(KeyEvent.KEYCODE_PLUS);
return true;
}
}
return false;
}
void callVoicemail() {
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("voicemail", "", null));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
mDigits.getText().clear();
finish();
}
void placeCall() {
final String number = mDigits.getText().toString();
if (number == null || !TextUtils.isGraphic(number)) {
// There is no number entered.
playTone(ToneGenerator.TONE_PROP_NACK);
return;
}
Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
Uri.fromParts("tel", number, null));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
mDigits.getText().clear();
finish();
}
Handler mToneStopper = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case STOP_TONE:
synchronized(mToneGeneratorLock) {
if (mToneGenerator == null) {
Log.w(TAG, "mToneStopper: mToneGenerator == null");
} else {
mToneGenerator.stopTone();
}
}
break;
}
}
};
/**
* Play a tone for TONE_LENGTH_MS milliseconds.
*
* @param tone a tone code from {@link ToneGenerator}
*/
void playTone(int tone) {
// if local tone playback is disabled, just return.
if (!mDTMFToneEnabled) {
return;
}
synchronized(mToneGeneratorLock) {
if (mToneGenerator == null) {
Log.w(TAG, "playTone: mToneGenerator == null, tone: "+tone);
return;
}
// Remove pending STOP_TONE messages
mToneStopper.removeMessages(STOP_TONE);
// Start the new tone (will stop any playing tone)
mToneGenerator.startTone(tone);
mToneStopper.sendEmptyMessageDelayed(STOP_TONE, TONE_LENGTH_MS);
}
}
/**
* Brings up the "dialpad chooser" UI in place of the usual Dialer
* elements (the textfield/button and the dialpad underneath).
*
* We show this UI if the user brings up the Dialer while a call is
* already in progress, since there's a good chance we got here
* accidentally (and the user really wanted the in-call dialpad instead).
* So in this situation we display an intermediate UI that lets the user
* explicitly choose between the in-call dialpad ("Use touch tone
* keypad") and the regular Dialer ("Add call"). (Or, the option "Return
* to call in progress" just goes back to the in-call UI with no dialpad
* at all.)
*
* @param enabled If true, show the "dialpad chooser" instead
* of the regular Dialer UI
*/
private void showDialpadChooser(boolean enabled) {
if (enabled) {
// Log.i(TAG, "Showing dialpad chooser!");
mDigitsAndBackspace.setVisibility(View.GONE);
if (mDialpad != null) mDialpad.setVisibility(View.GONE);
mDialpadChooser.setVisibility(View.VISIBLE);
// Instantiate the DialpadChooserAdapter and hook it up to the
// ListView. We do this only once.
if (mDialpadChooserAdapter == null) {
mDialpadChooserAdapter = new DialpadChooserAdapter(this);
mDialpadChooser.setAdapter(mDialpadChooserAdapter);
}
} else {
// Log.i(TAG, "Displaying normal Dialer UI.");
mDigitsAndBackspace.setVisibility(View.VISIBLE);
if (mDialpad != null) mDialpad.setVisibility(View.VISIBLE);
mDialpadChooser.setVisibility(View.GONE);
}
}
/**
* @return true if we're currently showing the "dialpad chooser" UI.
*/
private boolean dialpadChooserVisible() {
return mDialpadChooser.getVisibility() == View.VISIBLE;
}
/**
* Simple list adapter, binding to an icon + text label
* for each item in the "dialpad chooser" list.
*/
private static class DialpadChooserAdapter extends BaseAdapter {
private LayoutInflater mInflater;
// Simple struct for a single "choice" item.
static class ChoiceItem {
String text;
Bitmap icon;
int id;
public ChoiceItem(String s, Bitmap b, int i) {
text = s;
icon = b;
id = i;
}
}
// IDs for the possible "choices":
static final int DIALPAD_CHOICE_USE_DTMF_DIALPAD = 101;
static final int DIALPAD_CHOICE_RETURN_TO_CALL = 102;
static final int DIALPAD_CHOICE_ADD_NEW_CALL = 103;
private static final int NUM_ITEMS = 3;
private ChoiceItem mChoiceItems[] = new ChoiceItem[NUM_ITEMS];
public DialpadChooserAdapter(Context context) {
// Cache the LayoutInflate to avoid asking for a new one each time.
mInflater = LayoutInflater.from(context);
// Initialize the possible choices.
// TODO: could this be specified entirely in XML?
// - "Use touch tone keypad"
mChoiceItems[0] = new ChoiceItem(
context.getString(R.string.dialer_useDtmfDialpad),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_tt_keypad),
DIALPAD_CHOICE_USE_DTMF_DIALPAD);
// - "Return to call in progress"
mChoiceItems[1] = new ChoiceItem(
context.getString(R.string.dialer_returnToInCallScreen),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_current_call),
DIALPAD_CHOICE_RETURN_TO_CALL);
// - "Add call"
mChoiceItems[2] = new ChoiceItem(
context.getString(R.string.dialer_addAnotherCall),
BitmapFactory.decodeResource(context.getResources(),
R.drawable.ic_dialer_fork_add_call),
DIALPAD_CHOICE_ADD_NEW_CALL);
}
public int getCount() {
return NUM_ITEMS;
}
/**
* Return the ChoiceItem for a given position.
*/
public Object getItem(int position) {
return mChoiceItems[position];
}
/**
* Return a unique ID for each possible choice.
*/
public long getItemId(int position) {
return position;
}
/**
* Make a view for each row.
*/
public View getView(int position, View convertView, ViewGroup parent) {
// When convertView is non-null, we can reuse it (there's no need
// to reinflate it.)
if (convertView == null) {
convertView = mInflater.inflate(R.layout.dialpad_chooser_list_item, null);
}
TextView text = (TextView) convertView.findViewById(R.id.text);
text.setText(mChoiceItems[position].text);
ImageView icon = (ImageView) convertView.findViewById(R.id.icon);
icon.setImageBitmap(mChoiceItems[position].icon);
return convertView;
}
}
/**
* Handle clicks from the dialpad chooser.
*/
public void onItemClick(AdapterView parent, View v, int position, long id) {
DialpadChooserAdapter.ChoiceItem item =
(DialpadChooserAdapter.ChoiceItem) parent.getItemAtPosition(position);
int itemId = item.id;
switch (itemId) {
case DialpadChooserAdapter.DIALPAD_CHOICE_USE_DTMF_DIALPAD:
// Log.i(TAG, "DIALPAD_CHOICE_USE_DTMF_DIALPAD");
// Fire off an intent to go back to the in-call UI
// with the dialpad visible.
returnToInCallScreen(true);
break;
case DialpadChooserAdapter.DIALPAD_CHOICE_RETURN_TO_CALL:
// Log.i(TAG, "DIALPAD_CHOICE_RETURN_TO_CALL");
// Fire off an intent to go back to the in-call UI
// (with the dialpad hidden).
returnToInCallScreen(false);
break;
case DialpadChooserAdapter.DIALPAD_CHOICE_ADD_NEW_CALL:
// Log.i(TAG, "DIALPAD_CHOICE_ADD_NEW_CALL");
// Ok, guess the user really did want to be here (in the
// regular Dialer) after all. Bring back the normal Dialer UI.
showDialpadChooser(false);
break;
default:
Log.w(TAG, "onItemClick: unexpected itemId: " + itemId);
break;
}
}
/**
* Returns to the in-call UI (where there's presumably a call in
* progress) in response to the user selecting "use touch tone keypad"
* or "return to call" from the dialpad chooser.
*/
private void returnToInCallScreen(boolean showDialpad) {
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
if (phone != null) phone.showCallScreenWithDialpad(showDialpad);
} catch (RemoteException e) {
Log.w(TAG, "phone.showCallScreenWithDialpad() failed", e);
}
// Finally, finish() ourselves so that we don't stay on the
// activity stack.
// Note that we do this whether or not the showCallScreenWithDialpad()
// call above had any effect or not! (That call is a no-op if the
// phone is idle, which can happen if the current call ends while
// the dialpad chooser is up. In this case we can't show the
// InCallScreen, and there's no point staying here in the Dialer,
// so we just take the user back where he came from...)
finish();
}
/**
* @return true if the phone is "in use", meaning that at least one line
* is active (ie. off hook or ringing or dialing).
*/
private boolean phoneIsInUse() {
boolean phoneInUse = false;
try {
ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone"));
if (phone != null) phoneInUse = !phone.isIdle();
} catch (RemoteException e) {
Log.w(TAG, "phone.isIdle() failed", e);
}
return phoneInUse;
}
}
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