/* * 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.ActivityManagerNative; import android.app.AlertDialog; import android.app.AppOpsManager; import android.app.Dialog; import android.content.BroadcastReceiver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.res.Configuration; import android.content.res.Resources; import android.net.Uri; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.os.RemoteException; import android.os.SystemProperties; import android.os.UserHandle; import android.telecom.PhoneAccount; import android.telephony.PhoneNumberUtils; import android.text.TextUtils; import android.util.Log; import android.view.View; import android.widget.ProgressBar; import com.android.internal.telephony.Phone; import com.android.internal.telephony.PhoneConstants; import com.android.internal.telephony.TelephonyCapabilities; /** * OutgoingCallBroadcaster receives CALL and CALL_PRIVILEGED Intents, and broadcasts the * ACTION_NEW_OUTGOING_CALL intent. ACTION_NEW_OUTGOING_CALL is an ordered broadcast intent which * contains the phone number being dialed. Applications can use this intent to (1) see which numbers * are being dialed, (2) redirect a call (change the number being dialed), or (3) prevent a call * from being placed. * * After the other applications have had a chance to see the * ACTION_NEW_OUTGOING_CALL intent, it finally reaches the * {@link OutgoingCallReceiver}, which passes the (possibly modified) * intent on to the {@link SipCallOptionHandler}, which will * ultimately start the call using the CallController.placeCall() API. * * Calls where no number is present (like for a CDMA "empty flash" or a nonexistent voicemail * number) are exempt from being broadcast. * Calls to emergency numbers are still broadcast for informative purposes. The call is placed * prior to sending ACTION_NEW_OUTGOING_CALL and cannot be redirected nor prevented. */ public class OutgoingCallBroadcaster extends Activity implements DialogInterface.OnClickListener, DialogInterface.OnCancelListener { private static final String TAG = "OutgoingCallBroadcaster"; private static final boolean DBG = (PhoneGlobals.DBG_LEVEL >= 1) && (SystemProperties.getInt("ro.debuggable", 0) == 1); // Do not check in with VDBG = true, since that may write PII to the system log. private static final boolean VDBG = false; /** Required permission for any app that wants to consume ACTION_NEW_OUTGOING_CALL. */ private static final String PERMISSION = android.Manifest.permission.PROCESS_OUTGOING_CALLS; public static final String ACTION_SIP_SELECT_PHONE = "com.android.phone.SIP_SELECT_PHONE"; public static final String EXTRA_ALREADY_CALLED = "android.phone.extra.ALREADY_CALLED"; public static final String EXTRA_ORIGINAL_URI = "android.phone.extra.ORIGINAL_URI"; public static final String EXTRA_NEW_CALL_INTENT = "android.phone.extra.NEW_CALL_INTENT"; public static final String EXTRA_SIP_PHONE_URI = "android.phone.extra.SIP_PHONE_URI"; public static final String EXTRA_ACTUAL_NUMBER_TO_DIAL = "android.phone.extra.ACTUAL_NUMBER_TO_DIAL"; public static final String EXTRA_THIRD_PARTY_CALL_COMPONENT = "android.phone.extra.THIRD_PARTY_CALL_COMPONENT"; /** * 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: Receiving an intent extra to tell the phone to send this flash is a * temporary measure. To be replaced with an external ITelephony call in the future. * TODO: Keep in sync with the string defined in TwelveKeyDialer.java in Contacts app * until this is replaced with the ITelephony API. */ public static final String EXTRA_SEND_EMPTY_FLASH = "com.android.phone.extra.SEND_EMPTY_FLASH"; // Dialog IDs private static final int DIALOG_NOT_VOICE_CAPABLE = 1; /** Note message codes < 100 are reserved for the PhoneApp. */ private static final int EVENT_OUTGOING_CALL_TIMEOUT = 101; private static final int EVENT_DELAYED_FINISH = 102; private static final int OUTGOING_CALL_TIMEOUT_THRESHOLD = 2000; // msec private static final int DELAYED_FINISH_TIME = 2000; // msec /** * ProgressBar object with "spinner" style, which will be shown if we take more than * {@link #EVENT_OUTGOING_CALL_TIMEOUT} msec to handle the incoming Intent. */ private ProgressBar mWaitingSpinner; private final Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { if (msg.what == EVENT_OUTGOING_CALL_TIMEOUT) { Log.i(TAG, "Outgoing call takes too long. Showing the spinner."); mWaitingSpinner.setVisibility(View.VISIBLE); } else if (msg.what == EVENT_DELAYED_FINISH) { finish(); } else { Log.wtf(TAG, "Unknown message id: " + msg.what); } } }; /** * Starts the delayed finish() of OutgoingCallBroadcaster in order to give the UI * some time to start up. */ private void startDelayedFinish() { mHandler.sendEmptyMessageDelayed(EVENT_DELAYED_FINISH, DELAYED_FINISH_TIME); } /** * OutgoingCallReceiver finishes NEW_OUTGOING_CALL broadcasts, starting * the InCallScreen if the broadcast has not been canceled, possibly with * a modified phone number and optional provider info (uri + package name + remote views.) */ public class OutgoingCallReceiver extends BroadcastReceiver { private static final String TAG = "OutgoingCallReceiver"; @Override public void onReceive(Context context, Intent intent) { mHandler.removeMessages(EVENT_OUTGOING_CALL_TIMEOUT); final boolean isAttemptingCall = doReceive(context, intent); if (DBG) Log.v(TAG, "OutgoingCallReceiver is going to finish the Activity itself."); // We cannot finish the activity immediately here because it would cause the temporary // black screen of OutgoingBroadcaster to go away and we need it to stay up until the // UI (in a different process) has time to come up. // However, if we know we are not attemping a call, we need to finish the activity // immediately so that subsequent CALL intents will retrigger a new // OutgoingCallReceiver. see b/10857203 if (isAttemptingCall) { startDelayedFinish(); } else { finish(); } } /** * Handes receipt of ordered new_outgoing_call intent. Verifies that the return from the * ordered intent is valid. * @return true if the call is being attempted; false if we are canceling the call. */ public boolean doReceive(Context context, Intent intent) { if (DBG) Log.v(TAG, "doReceive: " + intent); boolean alreadyCalled; String number; String originalUri; alreadyCalled = intent.getBooleanExtra( OutgoingCallBroadcaster.EXTRA_ALREADY_CALLED, false); if (alreadyCalled) { if (DBG) Log.v(TAG, "CALL already placed -- returning."); return false; } // Once the NEW_OUTGOING_CALL broadcast is finished, the resultData // is used as the actual number to call. (If null, no call will be // placed.) number = getResultData(); if (VDBG) Log.v(TAG, "- got number from resultData: '" + number + "'"); final PhoneGlobals app = PhoneGlobals.getInstance(); final Phone phone = PhoneGlobals.getPhone(); // OTASP-specific checks. // TODO: This should probably all happen in // OutgoingCallBroadcaster.onCreate(), since there's no reason to // even bother with the NEW_OUTGOING_CALL broadcast if we're going // to disallow the outgoing call anyway... if (TelephonyCapabilities.supportsOtasp(phone)) { boolean activateState = (app.cdmaOtaScreenState.otaScreenState == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_ACTIVATION); boolean dialogState = (app.cdmaOtaScreenState.otaScreenState == OtaUtils.CdmaOtaScreenState.OtaScreenState .OTA_STATUS_SUCCESS_FAILURE_DLG); boolean isOtaCallActive = false; // TODO: Need cleaner way to check if OTA is active. // Also, this check seems to be broken in one obscure case: if // you interrupt an OTASP call by pressing Back then Skip, // otaScreenState somehow gets left in either PROGRESS or // LISTENING. if ((app.cdmaOtaScreenState.otaScreenState == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_PROGRESS) || (app.cdmaOtaScreenState.otaScreenState == OtaUtils.CdmaOtaScreenState.OtaScreenState.OTA_STATUS_LISTENING)) { isOtaCallActive = true; } if (activateState || dialogState) { // The OTASP sequence is active, but either (1) the call // hasn't started yet, or (2) the call has ended and we're // showing the success/failure screen. In either of these // cases it's OK to make a new outgoing call, but we need // to take down any OTASP-related UI first. if (dialogState) app.dismissOtaDialogs(); app.clearOtaState(); } else if (isOtaCallActive) { // The actual OTASP call is active. Don't allow new // outgoing calls at all from this state. Log.w(TAG, "OTASP call is active: disallowing a new outgoing call."); return false; } } if (number == null) { if (DBG) Log.v(TAG, "CALL cancelled (null number), returning..."); return false; } else if (TelephonyCapabilities.supportsOtasp(phone) && (phone.getState() != PhoneConstants.State.IDLE) && (phone.isOtaSpNumber(number))) { if (DBG) Log.v(TAG, "Call is active, a 2nd OTA call cancelled -- returning."); return false; } else if (PhoneNumberUtils.isPotentialLocalEmergencyNumber(context, number)) { // Just like 3rd-party apps aren't allowed to place emergency // calls via the ACTION_CALL intent, we also don't allow 3rd // party apps to use the NEW_OUTGOING_CALL broadcast to rewrite // an outgoing call into an emergency number. Log.w(TAG, "Cannot modify outgoing call to emergency number " + number + "."); return false; } originalUri = intent.getStringExtra( OutgoingCallBroadcaster.EXTRA_ORIGINAL_URI); if (originalUri == null) { Log.e(TAG, "Intent is missing EXTRA_ORIGINAL_URI -- returning."); return false; } Uri uri = Uri.parse(originalUri); // We already called convertKeypadLettersToDigits() and // stripSeparators() way back in onCreate(), before we sent out the // NEW_OUTGOING_CALL broadcast. But we need to do it again here // too, since the number might have been modified/rewritten during // the broadcast (and may now contain letters or separators again.) number = PhoneNumberUtils.convertKeypadLettersToDigits(number); number = PhoneNumberUtils.stripSeparators(number); if (DBG) Log.v(TAG, "doReceive: proceeding with call..."); if (VDBG) Log.v(TAG, "- uri: " + uri); if (VDBG) Log.v(TAG, "- actual number to dial: '" + number + "'"); startSipCallOptionHandler(context, intent, uri, number); return true; } } /** * Launch the SipCallOptionHandler, which is the next step(*) in the * outgoing-call sequence after the outgoing call broadcast is * complete. * * (*) We now know exactly what phone number we need to dial, so the next * step is for the SipCallOptionHandler to decide which Phone type (SIP * or PSTN) should be used. (Depending on the user's preferences, this * decision may also involve popping up a dialog to ask the user to * choose what type of call this should be.) * * @param context used for the startActivity() call * * @param intent the intent from the previous step of the outgoing-call * sequence. Normally this will be the NEW_OUTGOING_CALL broadcast intent * that came in to the OutgoingCallReceiver, although it can also be the * original ACTION_CALL intent that started the whole sequence (in cases * where we don't do the NEW_OUTGOING_CALL broadcast at all, like for * emergency numbers or SIP addresses). * * @param uri the data URI from the original CALL intent, presumably either * a tel: or sip: URI. For tel: URIs, note that the scheme-specific part * does *not* necessarily have separators and keypad letters stripped (so * we might see URIs like "tel:(650)%20555-1234" or "tel:1-800-GOOG-411" * here.) * * @param number the actual number (or SIP address) to dial. This is * guaranteed to be either a PSTN phone number with separators stripped * out and keypad letters converted to digits (like "16505551234"), or a * raw SIP address (like "user@example.com"). */ private void startSipCallOptionHandler(Context context, Intent intent, Uri uri, String number) { // TODO: Remove this code. } /** * This method is the single point of entry for the CALL intent, which is used (by built-in * apps like Contacts / Dialer, as well as 3rd-party apps) to initiate an outgoing voice call. * * */ @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); setContentView(R.layout.outgoing_call_broadcaster); mWaitingSpinner = (ProgressBar) findViewById(R.id.spinner); Intent intent = getIntent(); if (DBG) { final Configuration configuration = getResources().getConfiguration(); Log.v(TAG, "onCreate: this = " + this + ", icicle = " + icicle); Log.v(TAG, " - getIntent() = " + intent); Log.v(TAG, " - configuration = " + configuration); } if (icicle != null) { // A non-null icicle means that this activity is being // re-initialized after previously being shut down. // // In practice this happens very rarely (because the lifetime // of this activity is so short!), but it *can* happen if the // framework detects a configuration change at exactly the // right moment; see bug 2202413. // // In this case, do nothing. Our onCreate() method has already // run once (with icicle==null the first time), which means // that the NEW_OUTGOING_CALL broadcast for this new call has // already been sent. Log.i(TAG, "onCreate: non-null icicle! " + "Bailing out, not sending NEW_OUTGOING_CALL broadcast..."); // No need to finish() here, since the OutgoingCallReceiver from // our original instance will do that. (It'll actually call // finish() on our original instance, which apparently works fine // even though the ActivityManager has already shut that instance // down. And note that if we *do* call finish() here, that just // results in an "ActivityManager: Duplicate finish request" // warning when the OutgoingCallReceiver runs.) return; } processIntent(intent); // isFinishing() return false when 1. broadcast is still ongoing, or 2. dialog is being // shown. Otherwise finish() is called inside processIntent(), is isFinishing() here will // return true. if (DBG) Log.v(TAG, "At the end of onCreate(). isFinishing(): " + isFinishing()); } /** * Interprets a given Intent and starts something relevant to the Intent. * * This method will handle three kinds of actions: * * - CALL (action for usual outgoing voice calls) * - CALL_PRIVILEGED (can come from built-in apps like contacts / voice dialer / bluetooth) * - CALL_EMERGENCY (from the EmergencyDialer that's reachable from the lockscreen.) * * The exact behavior depends on the intent's data: * * - The most typical is a tel: URI, which we handle by starting the * NEW_OUTGOING_CALL broadcast. That broadcast eventually triggers * the sequence OutgoingCallReceiver -> SipCallOptionHandler -> * InCallScreen. * * - Or, with a sip: URI we skip the NEW_OUTGOING_CALL broadcast and * go directly to SipCallOptionHandler, which then leads to the * InCallScreen. * * - voicemail: URIs take the same path as regular tel: URIs. * * Other special cases: * * - Outgoing calls are totally disallowed on non-voice-capable * devices (see handleNonVoiceCapable()). * * - A CALL intent with the EXTRA_SEND_EMPTY_FLASH extra (and * presumably no data at all) means "send an empty flash" (which * is only meaningful on CDMA devices while a call is already * active.) * */ private void processIntent(Intent intent) { if (DBG) { Log.v(TAG, "processIntent() = " + intent + ", thread: " + Thread.currentThread()); } final Configuration configuration = getResources().getConfiguration(); // Outgoing phone calls are only allowed on "voice-capable" devices. if (!PhoneGlobals.sVoiceCapable) { Log.i(TAG, "This device is detected as non-voice-capable device."); handleNonVoiceCapable(intent); return; } String action = intent.getAction(); String number = PhoneNumberUtils.getNumberFromIntent(intent, this); // Check the number, don't convert for sip uri // TODO put uriNumber under PhoneNumberUtils if (number != null) { if (!PhoneNumberUtils.isUriNumber(number)) { number = PhoneNumberUtils.convertKeypadLettersToDigits(number); number = PhoneNumberUtils.stripSeparators(number); } } else { Log.w(TAG, "The number obtained from Intent is null."); } AppOpsManager appOps = (AppOpsManager)getSystemService(Context.APP_OPS_SERVICE); int launchedFromUid; String launchedFromPackage; try { launchedFromUid = ActivityManagerNative.getDefault().getLaunchedFromUid( getActivityToken()); launchedFromPackage = ActivityManagerNative.getDefault().getLaunchedFromPackage( getActivityToken()); } catch (RemoteException e) { launchedFromUid = -1; launchedFromPackage = null; } if (appOps.noteOpNoThrow(AppOpsManager.OP_CALL_PHONE, launchedFromUid, launchedFromPackage) != AppOpsManager.MODE_ALLOWED) { Log.w(TAG, "Rejecting call from uid " + launchedFromUid + " package " + launchedFromPackage); finish(); return; } // If true, this flag will indicate that the current call is a special kind // of call (most likely an emergency number) that 3rd parties aren't allowed // to intercept or affect in any way. (In that case, we start the call // immediately rather than going through the NEW_OUTGOING_CALL sequence.) boolean callNow; if (getClass().getName().equals(intent.getComponent().getClassName())) { // If we were launched directly from the OutgoingCallBroadcaster, // not one of its more privileged aliases, then make sure that // only the non-privileged actions are allowed. if (!Intent.ACTION_CALL.equals(intent.getAction())) { Log.w(TAG, "Attempt to deliver non-CALL action; forcing to CALL"); intent.setAction(Intent.ACTION_CALL); } } // Check whether or not this is an emergency number, in order to // enforce the restriction that only the CALL_PRIVILEGED and // CALL_EMERGENCY intents are allowed to make emergency calls. // // (Note that the ACTION_CALL check below depends on the result of // isPotentialLocalEmergencyNumber() rather than just plain // isLocalEmergencyNumber(), to be 100% certain that we *don't* // allow 3rd party apps to make emergency calls by passing in an // "invalid" number like "9111234" that isn't technically an // emergency number but might still result in an emergency call // with some networks.) final boolean isExactEmergencyNumber = (number != null) && PhoneNumberUtils.isLocalEmergencyNumber(this, number); final boolean isPotentialEmergencyNumber = (number != null) && PhoneNumberUtils.isPotentialLocalEmergencyNumber(this, number); if (VDBG) { Log.v(TAG, " - Checking restrictions for number '" + number + "':"); Log.v(TAG, " isExactEmergencyNumber = " + isExactEmergencyNumber); Log.v(TAG, " isPotentialEmergencyNumber = " + isPotentialEmergencyNumber); } /* Change CALL_PRIVILEGED into CALL or CALL_EMERGENCY as needed. */ // TODO: This code is redundant with some code in InCallScreen: refactor. if (Intent.ACTION_CALL_PRIVILEGED.equals(action)) { // We're handling a CALL_PRIVILEGED intent, so we know this request came // from a trusted source (like the built-in dialer.) So even a number // that's *potentially* an emergency number can safely be promoted to // CALL_EMERGENCY (since we *should* allow you to dial "91112345" from // the dialer if you really want to.) if (isPotentialEmergencyNumber) { Log.i(TAG, "ACTION_CALL_PRIVILEGED is used while the number is a potential" + " emergency number. Use ACTION_CALL_EMERGENCY as an action instead."); action = Intent.ACTION_CALL_EMERGENCY; } else { action = Intent.ACTION_CALL; } if (DBG) Log.v(TAG, " - updating action from CALL_PRIVILEGED to " + action); intent.setAction(action); } if (Intent.ACTION_CALL.equals(action)) { if (isPotentialEmergencyNumber) { Log.w(TAG, "Cannot call potential emergency number '" + number + "' with CALL Intent " + intent + "."); Log.i(TAG, "Launching default dialer instead..."); Intent invokeFrameworkDialer = new Intent(); // TwelveKeyDialer is in a tab so we really want // DialtactsActivity. Build the intent 'manually' to // use the java resolver to find the dialer class (as // opposed to a Context which look up known android // packages only) final Resources resources = getResources(); invokeFrameworkDialer.setClassName( resources.getString(R.string.ui_default_package), resources.getString(R.string.dialer_default_class)); invokeFrameworkDialer.setAction(Intent.ACTION_DIAL); invokeFrameworkDialer.setData(intent.getData()); if (DBG) Log.v(TAG, "onCreate(): calling startActivity for Dialer: " + invokeFrameworkDialer); startActivity(invokeFrameworkDialer); finish(); return; } callNow = false; } else if (Intent.ACTION_CALL_EMERGENCY.equals(action)) { // ACTION_CALL_EMERGENCY case: this is either a CALL_PRIVILEGED // intent that we just turned into a CALL_EMERGENCY intent (see // above), or else it really is an CALL_EMERGENCY intent that // came directly from some other app (e.g. the EmergencyDialer // activity built in to the Phone app.) // Make sure it's at least *possible* that this is really an // emergency number. if (!isPotentialEmergencyNumber) { Log.w(TAG, "Cannot call non-potential-emergency number " + number + " with EMERGENCY_CALL Intent " + intent + "." + " Finish the Activity immediately."); finish(); return; } callNow = true; } else { Log.e(TAG, "Unhandled Intent " + intent + ". Finish the Activity immediately."); finish(); return; } // Make sure the screen is turned on. This is probably the right // thing to do, and more importantly it works around an issue in the // activity manager where we will not launch activities consistently // when the screen is off (since it is trying to keep them paused // and has... issues). // // Also, this ensures the device stays awake while doing the following // broadcast; technically we should be holding a wake lock here // as well. PhoneGlobals.getInstance().wakeUpScreen(); // If number is null, we're probably trying to call a non-existent voicemail number, // send an empty flash or something else is fishy. Whatever the problem, there's no // number, so there's no point in allowing apps to modify the number. if (TextUtils.isEmpty(number)) { if (intent.getBooleanExtra(EXTRA_SEND_EMPTY_FLASH, false)) { Log.i(TAG, "onCreate: SEND_EMPTY_FLASH..."); PhoneUtils.sendEmptyFlash(PhoneGlobals.getPhone()); finish(); return; } else { Log.i(TAG, "onCreate: null or empty number, setting callNow=true..."); callNow = true; } } if (callNow) { // This is a special kind of call (most likely an emergency number) // that 3rd parties aren't allowed to intercept or affect in any way. // So initiate the outgoing call immediately. Log.i(TAG, "onCreate(): callNow case! Calling placeCall(): " + intent); // Initiate the outgoing call, and simultaneously launch the // InCallScreen to display the in-call UI: PhoneGlobals.getInstance().callController.placeCall(intent); // Note we do *not* "return" here, but instead continue and // send the ACTION_NEW_OUTGOING_CALL broadcast like for any // other outgoing call. (But when the broadcast finally // reaches the OutgoingCallReceiver, we'll know not to // initiate the call again because of the presence of the // EXTRA_ALREADY_CALLED extra.) } // For now, SIP calls will be processed directly without a // NEW_OUTGOING_CALL broadcast. // // TODO: In the future, though, 3rd party apps *should* be allowed to // intercept outgoing calls to SIP addresses as well. To do this, we should // (1) update the NEW_OUTGOING_CALL intent documentation to explain this // case, and (2) pass the outgoing SIP address by *not* overloading the // EXTRA_PHONE_NUMBER extra, but instead using a new separate extra to hold // the outgoing SIP address. (Be sure to document whether it's a URI or just // a plain address, whether it could be a tel: URI, etc.) Uri uri = intent.getData(); String scheme = uri.getScheme(); if (PhoneAccount.SCHEME_SIP.equals(scheme) || PhoneNumberUtils.isUriNumber(number)) { Log.i(TAG, "The requested number was detected as SIP call."); startSipCallOptionHandler(this, intent, uri, number); finish(); return; // TODO: if there's ever a way for SIP calls to trigger a // "callNow=true" case (see above), we'll need to handle that // case here too (most likely by just doing nothing at all.) } Intent broadcastIntent = new Intent(Intent.ACTION_NEW_OUTGOING_CALL); if (number != null) { broadcastIntent.putExtra(Intent.EXTRA_PHONE_NUMBER, number); } CallGatewayManager.checkAndCopyPhoneProviderExtras(intent, broadcastIntent); broadcastIntent.putExtra(EXTRA_ALREADY_CALLED, callNow); broadcastIntent.putExtra(EXTRA_ORIGINAL_URI, uri.toString()); // Need to raise foreground in-call UI as soon as possible while allowing 3rd party app // to intercept the outgoing call. broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); if (DBG) Log.v(TAG, " - Broadcasting intent: " + broadcastIntent + "."); // Set a timer so that we can prepare for unexpected delay introduced by the broadcast. // If it takes too much time, the timer will show "waiting" spinner. // This message will be removed when OutgoingCallReceiver#onReceive() is called before the // timeout. mHandler.sendEmptyMessageDelayed(EVENT_OUTGOING_CALL_TIMEOUT, OUTGOING_CALL_TIMEOUT_THRESHOLD); sendOrderedBroadcastAsUser(broadcastIntent, UserHandle.OWNER, PERMISSION, new OutgoingCallReceiver(), null, // scheduler Activity.RESULT_OK, // initialCode number, // initialData: initial value for the result data null); // initialExtras } @Override protected void onStop() { // Clean up (and dismiss if necessary) any managed dialogs. // // We don't do this in onPause() since we can be paused/resumed // due to orientation changes (in which case we don't want to // disturb the dialog), but we *do* need it here in onStop() to be // sure we clean up if the user hits HOME while the dialog is up. // // Note it's safe to call removeDialog() even if there's no dialog // associated with that ID. removeDialog(DIALOG_NOT_VOICE_CAPABLE); super.onStop(); } /** * Handle the specified CALL or CALL_* intent on a non-voice-capable * device. * * This method may launch a different intent (if there's some useful * alternative action to take), or otherwise display an error dialog, * and in either case will finish() the current activity when done. */ private void handleNonVoiceCapable(Intent intent) { if (DBG) Log.v(TAG, "handleNonVoiceCapable: handling " + intent + " on non-voice-capable device..."); // Just show a generic "voice calling not supported" dialog. showDialog(DIALOG_NOT_VOICE_CAPABLE); // ...and we'll eventually finish() when the user dismisses // or cancels the dialog. } @Override protected Dialog onCreateDialog(int id) { Dialog dialog; switch(id) { case DIALOG_NOT_VOICE_CAPABLE: dialog = new AlertDialog.Builder(this) .setTitle(R.string.not_voice_capable) .setIconAttribute(android.R.attr.alertDialogIcon) .setPositiveButton(android.R.string.ok, this) .setOnCancelListener(this) .create(); break; default: Log.w(TAG, "onCreateDialog: unexpected ID " + id); dialog = null; break; } return dialog; } /** DialogInterface.OnClickListener implementation */ @Override public void onClick(DialogInterface dialog, int id) { // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far // at least), and its only button is "OK". finish(); } /** DialogInterface.OnCancelListener implementation */ @Override public void onCancel(DialogInterface dialog) { // DIALOG_NOT_VOICE_CAPABLE is the only dialog we ever use (so far // at least), and canceling it is just like hitting "OK". finish(); } /** * Implement onConfigurationChanged() purely for debugging purposes, * to make sure that the android:configChanges element in our manifest * is working properly. */ @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); if (DBG) Log.v(TAG, "onConfigurationChanged: newConfig = " + newConfig); } }