/* * Copyright (C) 2011 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.dialer.dialpad; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.DialogFragment; import android.app.Fragment; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.res.Resources; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.media.AudioManager; import android.media.ToneGenerator; import android.net.Uri; import android.os.Bundle; import android.os.RemoteException; import android.os.ServiceManager; import android.os.SystemProperties; 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.PhoneNumberUtils; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; import android.text.Editable; import android.text.SpannableString; import android.text.TextUtils; import android.text.TextWatcher; import android.text.method.DialerKeyListener; import android.text.style.RelativeSizeSpan; import android.util.DisplayMetrics; import android.util.Log; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewConfiguration; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.EditText; import android.widget.ImageView; import android.widget.ListView; import android.widget.PopupMenu; import android.widget.TextView; import com.android.contacts.ContactsUtils; import com.android.contacts.R; import com.android.contacts.util.Constants; import com.android.contacts.util.PhoneNumberFormatter; import com.android.contacts.util.StopWatch; import com.android.dialer.DialtactsActivity; import com.android.dialer.SpecialCharSequenceMgr; import com.android.internal.telephony.ITelephony; import com.android.phone.common.CallLogAsync; import com.android.phone.common.HapticFeedback; /** * Fragment that displays a twelve-key phone dialpad. */ public class DialpadFragment extends Fragment implements View.OnClickListener, View.OnLongClickListener, View.OnKeyListener, AdapterView.OnItemClickListener, TextWatcher, PopupMenu.OnMenuItemClickListener, DialpadImageButton.OnPressedListener { private static final String TAG = DialpadFragment.class.getSimpleName(); private static final boolean DEBUG = DialtactsActivity.DEBUG; private static final String EMPTY_NUMBER = ""; /** The length of DTMF tones in milliseconds */ private static final int TONE_LENGTH_MS = 150; private static final int TONE_LENGTH_INFINITE = -1; /** The DTMF tone volume relative to other sounds in the stream */ private static final int TONE_RELATIVE_VOLUME = 80; /** Stream type used to play the DTMF tones off call, and mapped to the volume control keys */ private static final int DIAL_TONE_STREAM_TYPE = AudioManager.STREAM_DTMF; /** * View (usually FrameLayout) containing mDigits field. This can be null, in which mDigits * isn't enclosed by the container. */ private View mDigitsContainer; private EditText mDigits; /** Remembers if we need to clear digits field when the screen is completely gone. */ private boolean mClearDigitsOnStop; private View mDelete; private ToneGenerator mToneGenerator; private final Object mToneGeneratorLock = new Object(); private View mDialpad; /** * Remembers the number of dialpad buttons which are pressed at this moment. * If it becomes 0, meaning no buttons are pressed, we'll call * {@link ToneGenerator#stopTone()}; the method shouldn't be called unless the last key is * released. */ private int mDialpadPressCount; private View mDialButtonContainer; private View mDialButton; private ListView mDialpadChooser; private DialpadChooserAdapter mDialpadChooserAdapter; /** * Regular expression prohibiting manual phone call. Can be empty, which means "no rule". */ private String mProhibitedPhoneNumberRegexp; // Last number dialed, retrieved asynchronously from the call DB // in onCreate. This number is displayed when the user hits the // send key and cleared in onPause. private final CallLogAsync mCallLog = new CallLogAsync(); private String mLastNumberDialed = EMPTY_NUMBER; // determines if we want to playback local DTMF tones. private boolean mDTMFToneEnabled; // Vibration (haptic feedback) for dialer key presses. private final HapticFeedback mHaptic = new HapticFeedback(); /** Identifier for the "Add Call" intent extra. */ private static final String ADD_CALL_MODE_KEY = "add_call_mode"; /** * Identifier for intent extra for sending an empty Flash message for * CDMA networks. This message is used by the network to simulate a * press/depress of the "hookswitch" of a landline phone. Aka "empty flash". * * TODO: Using an intent extra to tell the phone to send this flash is a * temporary measure. To be replaced with an ITelephony call in the future. * TODO: Keep in sync with the string defined in OutgoingCallBroadcaster.java * in Phone app until this is replaced with the ITelephony API. */ private static final String EXTRA_SEND_EMPTY_FLASH = "com.android.phone.extra.SEND_EMPTY_FLASH"; private String mCurrentCountryIso; private final 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); } } }; private boolean mWasEmptyBeforeTextChange; /** * This field is set to true while processing an incoming DIAL intent, in order to make sure * that SpecialCharSequenceMgr actions can be triggered by user input but *not* by a * tel: URI passed by some other app. It will be set to false when all digits are cleared. */ private boolean mDigitsFilledByIntent; private static final String PREF_DIGITS_FILLED_BY_INTENT = "pref_digits_filled_by_intent"; @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { mWasEmptyBeforeTextChange = TextUtils.isEmpty(s); } @Override public void onTextChanged(CharSequence input, int start, int before, int changeCount) { if (mWasEmptyBeforeTextChange != TextUtils.isEmpty(input)) { final Activity activity = getActivity(); if (activity != null) { activity.invalidateOptionsMenu(); } } // DTMF Tones do not need to be played here any longer - // the DTMF dialer handles that functionality now. } @Override public void afterTextChanged(Editable input) { // When DTMF dialpad buttons are being pressed, we delay SpecialCharSequencMgr sequence, // since some of SpecialCharSequenceMgr's behavior is too abrupt for the "touch-down" // behavior. if (!mDigitsFilledByIntent && SpecialCharSequenceMgr.handleChars(getActivity(), input.toString(), mDigits)) { // A special sequence was entered, clear the digits mDigits.getText().clear(); } if (isDigitsEmpty()) { mDigitsFilledByIntent = false; mDigits.setCursorVisible(false); } updateDialAndDeleteButtonEnabledState(); } @Override public void onCreate(Bundle state) { super.onCreate(state); mCurrentCountryIso = ContactsUtils.getCurrentCountryIso(getActivity()); try { mHaptic.init(getActivity(), getResources().getBoolean(R.bool.config_enable_dialer_key_vibration)); } catch (Resources.NotFoundException nfe) { Log.e(TAG, "Vibrate control bool missing.", nfe); } setHasOptionsMenu(true); mProhibitedPhoneNumberRegexp = getResources().getString( R.string.config_prohibited_phone_number_regexp); if (state != null) { mDigitsFilledByIntent = state.getBoolean(PREF_DIGITS_FILLED_BY_INTENT); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedState) { View fragmentView = inflater.inflate(R.layout.dialpad_fragment, container, false); // Load up the resources for the text field. Resources r = getResources(); mDigitsContainer = fragmentView.findViewById(R.id.digits_container); mDigits = (EditText) fragmentView.findViewById(R.id.digits); mDigits.setKeyListener(DialerKeyListener.getInstance()); mDigits.setOnClickListener(this); mDigits.setOnKeyListener(this); mDigits.setOnLongClickListener(this); mDigits.addTextChangedListener(this); PhoneNumberFormatter.setPhoneNumberFormattingTextWatcher(getActivity(), mDigits); // Check for the presence of the keypad View oneButton = fragmentView.findViewById(R.id.one); if (oneButton != null) { setupKeypad(fragmentView); } DisplayMetrics dm = getResources().getDisplayMetrics(); int minCellSize = (int) (56 * dm.density); // 56dip == minimum size of menu buttons int cellCount = dm.widthPixels / minCellSize; int fakeMenuItemWidth = dm.widthPixels / cellCount; mDialButtonContainer = fragmentView.findViewById(R.id.dialButtonContainer); // If in portrait, add padding to the dial button since we need space for the // search and menu/overflow buttons. if (mDialButtonContainer != null && !ContactsUtils.isLandscape(this.getActivity())) { mDialButtonContainer.setPadding( fakeMenuItemWidth, mDialButtonContainer.getPaddingTop(), fakeMenuItemWidth, mDialButtonContainer.getPaddingBottom()); } mDialButton = fragmentView.findViewById(R.id.dialButton); if (r.getBoolean(R.bool.config_show_onscreen_dial_button)) { mDialButton.setOnClickListener(this); mDialButton.setOnLongClickListener(this); } else { mDialButton.setVisibility(View.GONE); // It's VISIBLE by default mDialButton = null; } mDelete = fragmentView.findViewById(R.id.deleteButton); if (mDelete != null) { mDelete.setOnClickListener(this); mDelete.setOnLongClickListener(this); } mDialpad = fragmentView.findViewById(R.id.dialpad); // This is null in landscape mode. // In landscape we put the keyboard in phone mode. if (null == mDialpad) { mDigits.setInputType(android.text.InputType.TYPE_CLASS_PHONE); } else { mDigits.setCursorVisible(false); } // Set up the "dialpad chooser" UI; see showDialpadChooser(). mDialpadChooser = (ListView) fragmentView.findViewById(R.id.dialpadChooser); mDialpadChooser.setOnItemClickListener(this); configureScreenFromIntent(getActivity().getIntent()); return fragmentView; } private boolean isLayoutReady() { return mDigits != null; } public EditText getDigitsWidget() { return mDigits; } /** * @return true when {@link #mDigits} is actually filled by the Intent. */ private boolean fillDigitsIfNecessary(Intent intent) { final String action = intent.getAction(); if (Intent.ACTION_DIAL.equals(action) || Intent.ACTION_VIEW.equals(action)) { Uri uri = intent.getData(); if (uri != null) { if (Constants.SCHEME_TEL.equals(uri.getScheme())) { // Put the requested number into the input area String data = uri.getSchemeSpecificPart(); // Remember it is filled via Intent. mDigitsFilledByIntent = true; setFormattedDigits(data, null); return true; } else { String type = intent.getType(); if (People.CONTENT_ITEM_TYPE.equals(type) || Phones.CONTENT_ITEM_TYPE.equals(type)) { // Query the phone number Cursor c = getActivity().getContentResolver().query(intent.getData(), new String[] {PhonesColumns.NUMBER, PhonesColumns.NUMBER_KEY}, null, null, null); if (c != null) { try { if (c.moveToFirst()) { // Remember it is filled via Intent. mDigitsFilledByIntent = true; // Put the number into the input area setFormattedDigits(c.getString(0), c.getString(1)); return true; } } finally { c.close(); } } } } } } return false; } /** * @see #showDialpadChooser(boolean) */ private static boolean needToShowDialpadChooser(Intent intent, boolean isAddCallMode) { final String action = intent.getAction(); boolean needToShowDialpadChooser = false; if (Intent.ACTION_DIAL.equals(action) || Intent.ACTION_VIEW.equals(action)) { Uri uri = intent.getData(); if (uri == null) { // ACTION_DIAL or ACTION_VIEW with no data. // This behaves basically like ACTION_MAIN: If there's // already an active call, bring up an intermediate UI to // make the user confirm what they really want to do. // Be sure *not* to show the dialpad chooser if this is an // explicit "Add call" action, though. if (!isAddCallMode && phoneIsInUse()) { needToShowDialpadChooser = true; } } } 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; } } return needToShowDialpadChooser; } private static boolean isAddCallMode(Intent 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. return intent.getBooleanExtra(ADD_CALL_MODE_KEY, false); } else { return false; } } /** * Checks the given Intent and changes dialpad's UI state. For example, if the Intent requires * the screen to enter "Add Call" mode, this method will show correct UI for the mode. */ public void configureScreenFromIntent(Intent intent) { if (!isLayoutReady()) { // This happens typically when parent's Activity#onNewIntent() is called while // Fragment#onCreateView() isn't called yet, and thus we cannot configure Views at // this point. onViewCreate() should call this method after preparing layouts, so // just ignore this call now. Log.i(TAG, "Screen configuration is requested before onCreateView() is called. Ignored"); return; } boolean needToShowDialpadChooser = false; final boolean isAddCallMode = isAddCallMode(intent); if (!isAddCallMode) { final boolean digitsFilled = fillDigitsIfNecessary(intent); if (!digitsFilled) { needToShowDialpadChooser = needToShowDialpadChooser(intent, isAddCallMode); } } showDialpadChooser(needToShowDialpadChooser); } /** * Sets formatted digits to digits field. */ private void setFormattedDigits(String data, String normalizedNumber) { // strip the non-dialable numbers out of the data string. String dialString = PhoneNumberUtils.extractNetworkPortion(data); dialString = PhoneNumberUtils.formatNumber(dialString, normalizedNumber, mCurrentCountryIso); 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); } } private void setupKeypad(View fragmentView) { int[] buttonIds = new int[] { R.id.one, R.id.two, R.id.three, R.id.four, R.id.five, R.id.six, R.id.seven, R.id.eight, R.id.nine, R.id.zero, R.id.star, R.id.pound}; for (int id : buttonIds) { ((DialpadImageButton) fragmentView.findViewById(id)).setOnPressedListener(this); } // Long-pressing one button will initiate Voicemail. fragmentView.findViewById(R.id.one).setOnLongClickListener(this); // Long-pressing zero button will enter '+' instead. fragmentView.findViewById(R.id.zero).setOnLongClickListener(this); } @Override public void onResume() { super.onResume(); final StopWatch stopWatch = StopWatch.start("Dialpad.onResume"); // Query the last dialed number. Do it first because hitting // the DB is 'slow'. This call is asynchronous. queryLastOutgoingCall(); stopWatch.lap("qloc"); // retrieve the DTMF tone play back setting. mDTMFToneEnabled = Settings.System.getInt(getActivity().getContentResolver(), Settings.System.DTMF_TONE_WHEN_DIALING, 1) == 1; stopWatch.lap("dtwd"); // Retrieve the haptic feedback setting. mHaptic.checkSystemSetting(); stopWatch.lap("hptc"); // 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(DIAL_TONE_STREAM_TYPE, TONE_RELATIVE_VOLUME); } catch (RuntimeException e) { Log.w(TAG, "Exception caught while creating local tone generator: " + e); mToneGenerator = null; } } } stopWatch.lap("tg"); // Prevent unnecessary confusion. Reset the press count anyway. mDialpadPressCount = 0; Activity parent = getActivity(); if (parent instanceof DialtactsActivity) { // See if we were invoked with a DIAL intent. If we were, fill in the appropriate // digits in the dialer field. fillDigitsIfNecessary(parent.getIntent()); } stopWatch.lap("fdin"); // 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) getActivity().getSystemService(Context.TELEPHONY_SERVICE); telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); stopWatch.lap("tm"); // 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()) { final SpannableString hint = new SpannableString( getActivity().getString(R.string.dialerDialpadHintText)); hint.setSpan(new RelativeSizeSpan(0.8f), 0, hint.length(), 0); mDigits.setHint(hint); } 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); } stopWatch.lap("hnt"); updateDialAndDeleteButtonEnabledState(); stopWatch.lap("bes"); stopWatch.stopAndLog(TAG, 50); } @Override public void onPause() { super.onPause(); // Stop listening for phone state changes. TelephonyManager telephonyManager = (TelephonyManager) getActivity().getSystemService(Context.TELEPHONY_SERVICE); telephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE); // Make sure we don't leave this activity with a tone still playing. stopTone(); // Just in case reset the counter too. mDialpadPressCount = 0; synchronized (mToneGeneratorLock) { if (mToneGenerator != null) { mToneGenerator.release(); mToneGenerator = null; } } // TODO: I wonder if we should not check if the AsyncTask that // lookup the last dialed number has completed. mLastNumberDialed = EMPTY_NUMBER; // Since we are going to query again, free stale number. SpecialCharSequenceMgr.cleanup(); } @Override public void onStop() { super.onStop(); if (mClearDigitsOnStop) { mClearDigitsOnStop = false; mDigits.getText().clear(); } } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putBoolean(PREF_DIGITS_FILLED_BY_INTENT, mDigitsFilledByIntent); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { super.onCreateOptionsMenu(menu, inflater); // Landscape dialer uses the real actionbar menu, whereas portrait uses a fake one // that is created using constructPopupMenu() if (ContactsUtils.isLandscape(this.getActivity()) || ViewConfiguration.get(getActivity()).hasPermanentMenuKey() && isLayoutReady() && mDialpadChooser != null) { inflater.inflate(R.menu.dialpad_options, menu); } } @Override public void onPrepareOptionsMenu(Menu menu) { // Hardware menu key should be available and Views should already be ready. if (ContactsUtils.isLandscape(this.getActivity()) || ViewConfiguration.get(getActivity()).hasPermanentMenuKey() && isLayoutReady() && mDialpadChooser != null) { setupMenuItems(menu); } } private void setupMenuItems(Menu menu) { final MenuItem callSettingsMenuItem = menu.findItem(R.id.menu_call_settings_dialpad); final MenuItem addToContactMenuItem = menu.findItem(R.id.menu_add_contacts); final MenuItem twoSecPauseMenuItem = menu.findItem(R.id.menu_2s_pause); final MenuItem waitMenuItem = menu.findItem(R.id.menu_add_wait); // Check if all the menu items are inflated correctly. As a shortcut, we assume all menu // items are ready if the first item is non-null. if (callSettingsMenuItem == null) { return; } final Activity activity = getActivity(); if (activity != null && ViewConfiguration.get(activity).hasPermanentMenuKey()) { // Call settings should be available via its parent Activity. callSettingsMenuItem.setVisible(false); } else { callSettingsMenuItem.setVisible(true); callSettingsMenuItem.setIntent(DialtactsActivity.getCallSettingsIntent()); } // We show "add to contacts", "2sec pause", and "add wait" menus only when the user is // seeing usual dialpads and has typed at least one digit. // We never show a menu if the "choose dialpad" UI is up. if (dialpadChooserVisible() || isDigitsEmpty()) { addToContactMenuItem.setVisible(false); twoSecPauseMenuItem.setVisible(false); waitMenuItem.setVisible(false); } else { final CharSequence digits = mDigits.getText(); // Put the current digits string into an intent addToContactMenuItem.setIntent(getAddToContactIntent(digits)); addToContactMenuItem.setVisible(true); // Check out whether to show Pause & Wait option menu items int selectionStart; int selectionEnd; String strDigits = digits.toString(); selectionStart = mDigits.getSelectionStart(); selectionEnd = mDigits.getSelectionEnd(); if (selectionStart != -1) { if (selectionStart > selectionEnd) { // swap it as we want start to be less then end int tmp = selectionStart; selectionStart = selectionEnd; selectionEnd = tmp; } if (selectionStart != 0) { // Pause can be visible if cursor is not in the begining twoSecPauseMenuItem.setVisible(true); // For Wait to be visible set of condition to meet waitMenuItem.setVisible(showWait(selectionStart, selectionEnd, strDigits)); } else { // cursor in the beginning both pause and wait to be invisible twoSecPauseMenuItem.setVisible(false); waitMenuItem.setVisible(false); } } else { twoSecPauseMenuItem.setVisible(true); // cursor is not selected so assume new digit is added to the end int strLength = strDigits.length(); waitMenuItem.setVisible(showWait(strLength, strLength, strDigits)); } } } private static Intent getAddToContactIntent(CharSequence digits) { final Intent intent = new Intent(Intent.ACTION_INSERT_OR_EDIT); intent.putExtra(Insert.PHONE, digits); intent.setType(People.CONTENT_ITEM_TYPE); return intent; } private void keyPressed(int keyCode) { switch (keyCode) { case KeyEvent.KEYCODE_1: playTone(ToneGenerator.TONE_DTMF_1, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_2: playTone(ToneGenerator.TONE_DTMF_2, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_3: playTone(ToneGenerator.TONE_DTMF_3, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_4: playTone(ToneGenerator.TONE_DTMF_4, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_5: playTone(ToneGenerator.TONE_DTMF_5, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_6: playTone(ToneGenerator.TONE_DTMF_6, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_7: playTone(ToneGenerator.TONE_DTMF_7, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_8: playTone(ToneGenerator.TONE_DTMF_8, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_9: playTone(ToneGenerator.TONE_DTMF_9, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_0: playTone(ToneGenerator.TONE_DTMF_0, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_POUND: playTone(ToneGenerator.TONE_DTMF_P, TONE_LENGTH_INFINITE); break; case KeyEvent.KEYCODE_STAR: playTone(ToneGenerator.TONE_DTMF_S, TONE_LENGTH_INFINITE); break; default: break; } mHaptic.vibrate(); KeyEvent event = new KeyEvent(KeyEvent.ACTION_DOWN, keyCode); mDigits.onKeyDown(keyCode, event); // If the cursor is at the end of the text we hide it. final int length = mDigits.length(); if (length == mDigits.getSelectionStart() && length == mDigits.getSelectionEnd()) { mDigits.setCursorVisible(false); } } @Override public boolean onKey(View view, int keyCode, KeyEvent event) { switch (view.getId()) { case R.id.digits: if (keyCode == KeyEvent.KEYCODE_ENTER) { dialButtonPressed(); return true; } break; } return false; } /** * When a key is pressed, we start playing DTMF tone, do vibration, and enter the digit * immediately. When a key is released, we stop the tone. Note that the "key press" event will * be delivered by the system with certain amount of delay, it won't be synced with user's * actual "touch-down" behavior. */ @Override public void onPressed(View view, boolean pressed) { if (DEBUG) Log.d(TAG, "onPressed(). view: " + view + ", pressed: " + pressed); if (pressed) { switch (view.getId()) { case R.id.one: { keyPressed(KeyEvent.KEYCODE_1); break; } case R.id.two: { keyPressed(KeyEvent.KEYCODE_2); break; } case R.id.three: { keyPressed(KeyEvent.KEYCODE_3); break; } case R.id.four: { keyPressed(KeyEvent.KEYCODE_4); break; } case R.id.five: { keyPressed(KeyEvent.KEYCODE_5); break; } case R.id.six: { keyPressed(KeyEvent.KEYCODE_6); break; } case R.id.seven: { keyPressed(KeyEvent.KEYCODE_7); break; } case R.id.eight: { keyPressed(KeyEvent.KEYCODE_8); break; } case R.id.nine: { keyPressed(KeyEvent.KEYCODE_9); break; } case R.id.zero: { keyPressed(KeyEvent.KEYCODE_0); break; } case R.id.pound: { keyPressed(KeyEvent.KEYCODE_POUND); break; } case R.id.star: { keyPressed(KeyEvent.KEYCODE_STAR); break; } default: { Log.wtf(TAG, "Unexpected onTouch(ACTION_DOWN) event from: " + view); break; } } mDialpadPressCount++; } else { view.jumpDrawablesToCurrentState(); mDialpadPressCount--; if (mDialpadPressCount < 0) { // e.g. // - when the user action is detected as horizontal swipe, at which only // "up" event is thrown. // - when the user long-press '0' button, at which dialpad will decrease this count // while it still gets press-up event here. if (DEBUG) Log.d(TAG, "mKeyPressCount become negative."); stopTone(); mDialpadPressCount = 0; } else if (mDialpadPressCount == 0) { stopTone(); } } } @Override public void onClick(View view) { switch (view.getId()) { case R.id.deleteButton: { keyPressed(KeyEvent.KEYCODE_DEL); return; } case R.id.dialButton: { mHaptic.vibrate(); // Vibrate here too, just like we do for the regular keys dialButtonPressed(); return; } case R.id.digits: { if (!isDigitsEmpty()) { mDigits.setCursorVisible(true); } return; } default: { Log.wtf(TAG, "Unexpected onClick() event from: " + view); return; } } } public PopupMenu constructPopupMenu(View anchorView) { final Context context = getActivity(); if (context == null) { return null; } final PopupMenu popupMenu = new PopupMenu(context, anchorView); final Menu menu = popupMenu.getMenu(); popupMenu.inflate(R.menu.dialpad_options); popupMenu.setOnMenuItemClickListener(this); setupMenuItems(menu); return popupMenu; } @Override public boolean onLongClick(View view) { final Editable digits = mDigits.getText(); final int id = view.getId(); switch (id) { case R.id.deleteButton: { digits.clear(); // TODO: The framework forgets to clear the pressed // status of disabled button. Until this is fixed, // clear manually the pressed status. b/2133127 mDelete.setPressed(false); return true; } case R.id.one: { // '1' may be already entered since we rely on onTouch() event for numeric buttons. // Just for safety we also check if the digits field is empty or not. if (isDigitsEmpty() || TextUtils.equals(mDigits.getText(), "1")) { // We'll try to initiate voicemail and thus we want to remove irrelevant string. removePreviousDigitIfPossible(); if (isVoicemailAvailable()) { callVoicemail(); } else if (getActivity() != null) { // Voicemail is unavailable maybe because Airplane mode is turned on. // Check the current status and show the most appropriate error message. final boolean isAirplaneModeOn = Settings.System.getInt(getActivity().getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) != 0; if (isAirplaneModeOn) { DialogFragment dialogFragment = ErrorDialogFragment.newInstance( R.string.dialog_voicemail_airplane_mode_message); dialogFragment.show(getFragmentManager(), "voicemail_request_during_airplane_mode"); } else { DialogFragment dialogFragment = ErrorDialogFragment.newInstance( R.string.dialog_voicemail_not_ready_message); dialogFragment.show(getFragmentManager(), "voicemail_not_ready"); } } return true; } return false; } case R.id.zero: { // Remove tentative input ('0') done by onTouch(). removePreviousDigitIfPossible(); keyPressed(KeyEvent.KEYCODE_PLUS); // Stop tone immediately and decrease the press count, so that possible subsequent // dial button presses won't honor the 0 click any more. // Note: this *will* make mDialpadPressCount negative when the 0 key is released, // which should be handled appropriately. stopTone(); if (mDialpadPressCount > 0) mDialpadPressCount--; return true; } case R.id.digits: { // Right now EditText does not show the "paste" option when cursor is not visible. // To show that, make the cursor visible, and return false, letting the EditText // show the option by itself. mDigits.setCursorVisible(true); return false; } case R.id.dialButton: { if (isDigitsEmpty()) { handleDialButtonClickWithEmptyDigits(); // This event should be consumed so that onClick() won't do the exactly same // thing. return true; } else { return false; } } } return false; } /** * Remove the digit just before the current position. This can be used if we want to replace * the previous digit or cancel previously entered character. */ private void removePreviousDigitIfPossible() { final Editable editable = mDigits.getText(); final int currentPosition = mDigits.getSelectionStart(); if (currentPosition > 0) { mDigits.setSelection(currentPosition); mDigits.getText().delete(currentPosition - 1, currentPosition); } } public void callVoicemail() { startActivity(ContactsUtils.getVoicemailIntent()); mClearDigitsOnStop = true; getActivity().finish(); } public static class ErrorDialogFragment extends DialogFragment { private int mTitleResId; private int mMessageResId; private static final String ARG_TITLE_RES_ID = "argTitleResId"; private static final String ARG_MESSAGE_RES_ID = "argMessageResId"; public static ErrorDialogFragment newInstance(int messageResId) { return newInstance(0, messageResId); } public static ErrorDialogFragment newInstance(int titleResId, int messageResId) { final ErrorDialogFragment fragment = new ErrorDialogFragment(); final Bundle args = new Bundle(); args.putInt(ARG_TITLE_RES_ID, titleResId); args.putInt(ARG_MESSAGE_RES_ID, messageResId); fragment.setArguments(args); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mTitleResId = getArguments().getInt(ARG_TITLE_RES_ID); mMessageResId = getArguments().getInt(ARG_MESSAGE_RES_ID); } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); if (mTitleResId != 0) { builder.setTitle(mTitleResId); } if (mMessageResId != 0) { builder.setMessage(mMessageResId); } builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dismiss(); } }); return builder.create(); } } /** * In most cases, when the dial button is pressed, there is a * number in digits area. Pack it in the intent, start the * outgoing call broadcast as a separate task and finish this * activity. * * When there is no digit and the phone is CDMA and off hook, * we're sending a blank flash for CDMA. CDMA networks use Flash * messages when special processing needs to be done, mainly for * 3-way or call waiting scenarios. Presumably, here we're in a * special 3-way scenario where the network needs a blank flash * before being able to add the new participant. (This is not the * case with all 3-way calls, just certain CDMA infrastructures.) * * Otherwise, there is no digit, display the last dialed * number. Don't finish since the user may want to edit it. The * user needs to press the dial button again, to dial it (general * case described above). */ public void dialButtonPressed() { if (isDigitsEmpty()) { // No number entered. handleDialButtonClickWithEmptyDigits(); } else { final String number = mDigits.getText().toString(); // "persist.radio.otaspdial" is a temporary hack needed for one carrier's automated // test equipment. // TODO: clean it up. if (number != null && !TextUtils.isEmpty(mProhibitedPhoneNumberRegexp) && number.matches(mProhibitedPhoneNumberRegexp) && (SystemProperties.getInt("persist.radio.otaspdial", 0) != 1)) { Log.i(TAG, "The phone number is prohibited explicitly by a rule."); if (getActivity() != null) { DialogFragment dialogFragment = ErrorDialogFragment.newInstance( R.string.dialog_phone_call_prohibited_message); dialogFragment.show(getFragmentManager(), "phone_prohibited_dialog"); } // Clear the digits just in case. mDigits.getText().clear(); } else { final Intent intent = ContactsUtils.getCallIntent(number, (getActivity() instanceof DialtactsActivity ? ((DialtactsActivity)getActivity()).getCallOrigin() : null)); startActivity(intent); mClearDigitsOnStop = true; getActivity().finish(); } } } private void handleDialButtonClickWithEmptyDigits() { if (phoneIsCdma() && phoneIsOffhook()) { // This is really CDMA specific. On GSM is it possible // to be off hook and wanted to add a 3rd party using // the redial feature. startActivity(newFlashIntent()); } else { if (!TextUtils.isEmpty(mLastNumberDialed)) { // Recall the last number dialed. mDigits.setText(mLastNumberDialed); // ...and move the cursor to the end of the digits string, // so you'll be able to delete digits using the Delete // button (just as if you had typed the number manually.) // // Note we use mDigits.getText().length() here, not // mLastNumberDialed.length(), since the EditText widget now // contains a *formatted* version of mLastNumberDialed (due to // mTextWatcher) and its length may have changed. mDigits.setSelection(mDigits.getText().length()); } else { // There's no "last number dialed" or the // background query is still running. There's // nothing useful for the Dial button to do in // this case. Note: with a soft dial button, this // can never happens since the dial button is // disabled under these conditons. playTone(ToneGenerator.TONE_PROP_NACK); } } } /** * Plays the specified tone for TONE_LENGTH_MS milliseconds. */ private void playTone(int tone) { playTone(tone, TONE_LENGTH_MS); } /** * Play the specified tone for the specified milliseconds * * The tone is played locally, using the audio stream for phone calls. * Tones are played only if the "Audible touch tones" user preference * is checked, and are NOT played if the device is in silent mode. * * The tone length can be -1, meaning "keep playing the tone." If the caller does so, it should * call stopTone() afterward. * * @param tone a tone code from {@link ToneGenerator} * @param durationMs tone length. */ private void playTone(int tone, int durationMs) { // if local tone playback is disabled, just return. if (!mDTMFToneEnabled) { return; } // Also do nothing if the phone is in silent mode. // We need to re-check the ringer mode for *every* playTone() // call, rather than keeping a local flag that's updated in // onResume(), since it's possible to toggle silent mode without // leaving the current activity (via the ENDCALL-longpress menu.) AudioManager audioManager = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE); int ringerMode = audioManager.getRingerMode(); if ((ringerMode == AudioManager.RINGER_MODE_SILENT) || (ringerMode == AudioManager.RINGER_MODE_VIBRATE)) { return; } synchronized (mToneGeneratorLock) { if (mToneGenerator == null) { Log.w(TAG, "playTone: mToneGenerator == null, tone: " + tone); return; } // Start the new tone (will stop any playing tone) mToneGenerator.startTone(tone, durationMs); } } /** * Stop the tone if it is played. */ private void stopTone() { // if local tone playback is disabled, just return. if (!mDTMFToneEnabled) { return; } synchronized (mToneGeneratorLock) { if (mToneGenerator == null) { Log.w(TAG, "stopTone: mToneGenerator == null"); return; } mToneGenerator.stopTone(); } } /** * 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) { // Check if onCreateView() is already called by checking one of View objects. if (!isLayoutReady()) { return; } if (enabled) { // Log.i(TAG, "Showing dialpad chooser!"); if (mDigitsContainer != null) { mDigitsContainer.setVisibility(View.GONE); } else { // mDigits is not enclosed by the container. Make the digits field itself gone. mDigits.setVisibility(View.GONE); } if (mDialpad != null) mDialpad.setVisibility(View.GONE); if (mDialButtonContainer != null) mDialButtonContainer.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(getActivity()); } mDialpadChooser.setAdapter(mDialpadChooserAdapter); } else { // Log.i(TAG, "Displaying normal Dialer UI."); if (mDigitsContainer != null) { mDigitsContainer.setVisibility(View.VISIBLE); } else { mDigits.setVisibility(View.VISIBLE); } if (mDialpad != null) mDialpad.setVisibility(View.VISIBLE); if (mDialButtonContainer != null) mDialButtonContainer.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); } @Override public int getCount() { return NUM_ITEMS; } /** * Return the ChoiceItem for a given position. */ @Override public Object getItem(int position) { return mChoiceItems[position]; } /** * Return a unique ID for each possible choice. */ @Override public long getItemId(int position) { return position; } /** * Make a view for each row. */ @Override 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. */ @Override 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...) getActivity().finish(); } /** * @return true if the phone is "in use", meaning that at least one line * is active (ie. off hook or ringing or dialing). */ public static 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; } /** * @return true if the phone is a CDMA phone type */ private boolean phoneIsCdma() { boolean isCdma = false; try { ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); if (phone != null) { isCdma = (phone.getActivePhoneType() == TelephonyManager.PHONE_TYPE_CDMA); } } catch (RemoteException e) { Log.w(TAG, "phone.getActivePhoneType() failed", e); } return isCdma; } /** * @return true if the phone state is OFFHOOK */ private boolean phoneIsOffhook() { boolean phoneOffhook = false; try { ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); if (phone != null) phoneOffhook = phone.isOffhook(); } catch (RemoteException e) { Log.w(TAG, "phone.isOffhook() failed", e); } return phoneOffhook; } /** * Returns true whenever any one of the options from the menu is selected. * Code changes to support dialpad options */ @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_2s_pause: updateDialString(","); return true; case R.id.menu_add_wait: updateDialString(";"); return true; default: return false; } } @Override public boolean onMenuItemClick(MenuItem item) { return onOptionsItemSelected(item); } /** * Updates the dial string (mDigits) after inserting a Pause character (,) * or Wait character (;). */ private void updateDialString(String newDigits) { int selectionStart; int selectionEnd; // SpannableStringBuilder editable_text = new SpannableStringBuilder(mDigits.getText()); int anchor = mDigits.getSelectionStart(); int point = mDigits.getSelectionEnd(); selectionStart = Math.min(anchor, point); selectionEnd = Math.max(anchor, point); Editable digits = mDigits.getText(); if (selectionStart != -1) { if (selectionStart == selectionEnd) { // then there is no selection. So insert the pause at this // position and update the mDigits. digits.replace(selectionStart, selectionStart, newDigits); } else { digits.replace(selectionStart, selectionEnd, newDigits); // Unselect: back to a regular cursor, just pass the character inserted. mDigits.setSelection(selectionStart + 1); } } else { int len = mDigits.length(); digits.replace(len, len, newDigits); } } /** * Update the enabledness of the "Dial" and "Backspace" buttons if applicable. */ private void updateDialAndDeleteButtonEnabledState() { final boolean digitsNotEmpty = !isDigitsEmpty(); if (mDialButton != null) { // On CDMA phones, if we're already on a call, we *always* // enable the Dial button (since you can press it without // entering any digits to send an empty flash.) if (phoneIsCdma() && phoneIsOffhook()) { mDialButton.setEnabled(true); } else { // Common case: GSM, or CDMA but not on a call. // Enable the Dial button if some digits have // been entered, or if there is a last dialed number // that could be redialed. mDialButton.setEnabled(digitsNotEmpty || !TextUtils.isEmpty(mLastNumberDialed)); } } mDelete.setEnabled(digitsNotEmpty); } /** * Check if voicemail is enabled/accessible. * * @return true if voicemail is enabled and accessibly. Note that this can be false * "temporarily" after the app boot. * @see TelephonyManager#getVoiceMailNumber() */ private boolean isVoicemailAvailable() { try { return (TelephonyManager.getDefault().getVoiceMailNumber() != null); } catch (SecurityException se) { // Possibly no READ_PHONE_STATE privilege. Log.w(TAG, "SecurityException is thrown. Maybe privilege isn't sufficient."); } return false; } /** * This function return true if Wait menu item can be shown * otherwise returns false. Assumes the passed string is non-empty * and the 0th index check is not required. */ private static boolean showWait(int start, int end, String digits) { if (start == end) { // visible false in this case if (start > digits.length()) return false; // preceding char is ';', so visible should be false if (digits.charAt(start - 1) == ';') return false; // next char is ';', so visible should be false if ((digits.length() > start) && (digits.charAt(start) == ';')) return false; } else { // visible false in this case if (start > digits.length() || end > digits.length()) return false; // In this case we need to just check for ';' preceding to start // or next to end if (digits.charAt(start - 1) == ';') return false; } return true; } /** * @return true if the widget with the phone number digits is empty. */ private boolean isDigitsEmpty() { return mDigits.length() == 0; } /** * Starts the asyn query to get the last dialed/outgoing * number. When the background query finishes, mLastNumberDialed * is set to the last dialed number or an empty string if none * exists yet. */ private void queryLastOutgoingCall() { mLastNumberDialed = EMPTY_NUMBER; CallLogAsync.GetLastOutgoingCallArgs lastCallArgs = new CallLogAsync.GetLastOutgoingCallArgs( getActivity(), new CallLogAsync.OnLastOutgoingCallComplete() { @Override public void lastOutgoingCall(String number) { // TODO: Filter out emergency numbers if // the carrier does not want redial for // these. mLastNumberDialed = number; updateDialAndDeleteButtonEnabledState(); } }); mCallLog.getLastOutgoingCall(lastCallArgs); } private Intent newFlashIntent() { final Intent intent = ContactsUtils.getCallIntent(EMPTY_NUMBER); intent.putExtra(EXTRA_SEND_EMPTY_FLASH, true); return intent; } }