RtpSessionActivity.java

   1package eu.siacs.conversations.ui;
   2
   3import android.Manifest;
   4import android.annotation.SuppressLint;
   5import android.app.PictureInPictureParams;
   6import android.content.ActivityNotFoundException;
   7import android.content.Context;
   8import android.content.Intent;
   9import android.content.pm.PackageManager;
  10import android.os.Build;
  11import android.os.Bundle;
  12import android.os.Handler;
  13import android.os.PowerManager;
  14import android.os.SystemClock;
  15import android.util.Log;
  16import android.util.Rational;
  17import android.view.KeyEvent;
  18import android.view.Menu;
  19import android.view.MenuItem;
  20import android.view.View;
  21import android.view.WindowManager;
  22import android.widget.Toast;
  23
  24import androidx.annotation.NonNull;
  25import androidx.annotation.RequiresApi;
  26import androidx.annotation.StringRes;
  27import androidx.databinding.DataBindingUtil;
  28
  29import com.google.common.base.Optional;
  30import com.google.common.base.Preconditions;
  31import com.google.common.base.Throwables;
  32import com.google.common.collect.ImmutableList;
  33import com.google.common.collect.ImmutableSet;
  34import com.google.common.util.concurrent.FutureCallback;
  35import com.google.common.util.concurrent.Futures;
  36
  37import org.checkerframework.checker.nullness.compatqual.NullableDecl;
  38import org.webrtc.SurfaceViewRenderer;
  39import org.webrtc.VideoTrack;
  40
  41import java.lang.ref.WeakReference;
  42import java.util.Arrays;
  43import java.util.Collections;
  44import java.util.List;
  45import java.util.Set;
  46
  47import eu.siacs.conversations.Config;
  48import eu.siacs.conversations.R;
  49import eu.siacs.conversations.databinding.ActivityRtpSessionBinding;
  50import eu.siacs.conversations.entities.Account;
  51import eu.siacs.conversations.entities.Contact;
  52import eu.siacs.conversations.entities.Conversation;
  53import eu.siacs.conversations.services.AppRTCAudioManager;
  54import eu.siacs.conversations.services.XmppConnectionService;
  55import eu.siacs.conversations.ui.util.AvatarWorkerTask;
  56import eu.siacs.conversations.ui.util.MainThreadExecutor;
  57import eu.siacs.conversations.utils.PermissionUtils;
  58import eu.siacs.conversations.utils.TimeFrameUtils;
  59import eu.siacs.conversations.xml.Namespace;
  60import eu.siacs.conversations.xmpp.Jid;
  61import eu.siacs.conversations.xmpp.jingle.AbstractJingleConnection;
  62import eu.siacs.conversations.xmpp.jingle.JingleConnectionManager;
  63import eu.siacs.conversations.xmpp.jingle.JingleRtpConnection;
  64import eu.siacs.conversations.xmpp.jingle.Media;
  65import eu.siacs.conversations.xmpp.jingle.RtpEndUserState;
  66
  67import static eu.siacs.conversations.utils.PermissionUtils.getFirstDenied;
  68import static java.util.Arrays.asList;
  69
  70public class RtpSessionActivity extends XmppActivity implements XmppConnectionService.OnJingleRtpConnectionUpdate {
  71
  72    public static final String EXTRA_WITH = "with";
  73    public static final String EXTRA_SESSION_ID = "session_id";
  74    public static final String EXTRA_LAST_REPORTED_STATE = "last_reported_state";
  75    public static final String EXTRA_LAST_ACTION = "last_action";
  76    public static final String ACTION_ACCEPT_CALL = "action_accept_call";
  77    public static final String ACTION_MAKE_VOICE_CALL = "action_make_voice_call";
  78    public static final String ACTION_MAKE_VIDEO_CALL = "action_make_video_call";
  79
  80    private static final int CALL_DURATION_UPDATE_INTERVAL = 333;
  81
  82    private static final List<RtpEndUserState> END_CARD = Arrays.asList(
  83            RtpEndUserState.APPLICATION_ERROR,
  84            RtpEndUserState.SECURITY_ERROR,
  85            RtpEndUserState.DECLINED_OR_BUSY,
  86            RtpEndUserState.CONNECTIVITY_ERROR,
  87            RtpEndUserState.CONNECTIVITY_LOST_ERROR,
  88            RtpEndUserState.RETRACTED
  89    );
  90    private static final List<RtpEndUserState> STATES_SHOWING_HELP_BUTTON = Arrays.asList(
  91            RtpEndUserState.APPLICATION_ERROR,
  92            RtpEndUserState.CONNECTIVITY_ERROR,
  93            RtpEndUserState.SECURITY_ERROR
  94    );
  95    private static final List<RtpEndUserState> STATES_SHOWING_SWITCH_TO_CHAT = Arrays.asList(
  96            RtpEndUserState.CONNECTING,
  97            RtpEndUserState.CONNECTED
  98    );
  99    private static final String PROXIMITY_WAKE_LOCK_TAG = "conversations:in-rtp-session";
 100    private static final int REQUEST_ACCEPT_CALL = 0x1111;
 101    private WeakReference<JingleRtpConnection> rtpConnectionReference;
 102
 103    private ActivityRtpSessionBinding binding;
 104    private PowerManager.WakeLock mProximityWakeLock;
 105
 106    private final Handler mHandler = new Handler();
 107    private final Runnable mTickExecutor = new Runnable() {
 108        @Override
 109        public void run() {
 110            updateCallDuration();
 111            mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 112        }
 113    };
 114
 115    private static Set<Media> actionToMedia(final String action) {
 116        if (ACTION_MAKE_VIDEO_CALL.equals(action)) {
 117            return ImmutableSet.of(Media.AUDIO, Media.VIDEO);
 118        } else {
 119            return ImmutableSet.of(Media.AUDIO);
 120        }
 121    }
 122
 123    private static void addSink(final VideoTrack videoTrack, final SurfaceViewRenderer surfaceViewRenderer) {
 124        try {
 125            videoTrack.addSink(surfaceViewRenderer);
 126        } catch (final IllegalStateException e) {
 127            Log.e(Config.LOGTAG, "possible race condition on trying to display video track. ignoring", e);
 128        }
 129    }
 130
 131    @Override
 132    public void onCreate(Bundle savedInstanceState) {
 133        super.onCreate(savedInstanceState);
 134        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON
 135                | WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
 136                | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
 137                | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
 138        this.binding = DataBindingUtil.setContentView(this, R.layout.activity_rtp_session);
 139        setSupportActionBar(binding.toolbar);
 140    }
 141
 142    @Override
 143    public boolean onCreateOptionsMenu(final Menu menu) {
 144        getMenuInflater().inflate(R.menu.activity_rtp_session, menu);
 145        final MenuItem help = menu.findItem(R.id.action_help);
 146        final MenuItem gotoChat = menu.findItem(R.id.action_goto_chat);
 147        help.setVisible(isHelpButtonVisible());
 148        gotoChat.setVisible(isSwitchToConversationVisible());
 149        return super.onCreateOptionsMenu(menu);
 150    }
 151
 152    @Override
 153    public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 154        if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
 155            if (xmppConnectionService != null) {
 156                if (xmppConnectionService.getNotificationService().stopSoundAndVibration()) {
 157                    return true;
 158                }
 159            }
 160        }
 161        return super.onKeyDown(keyCode, event);
 162    }
 163
 164    private boolean isHelpButtonVisible() {
 165        try {
 166            return STATES_SHOWING_HELP_BUTTON.contains(requireRtpConnection().getEndUserState());
 167        } catch (IllegalStateException e) {
 168            final Intent intent = getIntent();
 169            final String state = intent != null ? intent.getStringExtra(EXTRA_LAST_REPORTED_STATE) : null;
 170            if (state != null) {
 171                return STATES_SHOWING_HELP_BUTTON.contains(RtpEndUserState.valueOf(state));
 172            } else {
 173                return false;
 174            }
 175        }
 176    }
 177
 178    private boolean isSwitchToConversationVisible() {
 179        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 180        return connection != null && STATES_SHOWING_SWITCH_TO_CHAT.contains(connection.getEndUserState());
 181    }
 182
 183    private void switchToConversation() {
 184        final Contact contact = getWith();
 185        final Conversation conversation = xmppConnectionService.findOrCreateConversation(contact.getAccount(), contact.getJid(), false, true);
 186        switchToConversation(conversation);
 187    }
 188
 189    public boolean onOptionsItemSelected(final MenuItem item) {
 190        switch (item.getItemId()) {
 191            case R.id.action_help:
 192                launchHelpInBrowser();
 193                break;
 194            case R.id.action_goto_chat:
 195                switchToConversation();
 196                break;
 197        }
 198        return super.onOptionsItemSelected(item);
 199    }
 200
 201    private void launchHelpInBrowser() {
 202        final Intent intent = new Intent(Intent.ACTION_VIEW, Config.HELP);
 203        try {
 204            startActivity(intent);
 205        } catch (final ActivityNotFoundException e) {
 206            Toast.makeText(this, R.string.no_application_found_to_open_link, Toast.LENGTH_LONG).show();
 207        }
 208    }
 209
 210    private void endCall(View view) {
 211        endCall();
 212    }
 213
 214    private void endCall() {
 215        if (this.rtpConnectionReference == null) {
 216            retractSessionProposal();
 217            finish();
 218        } else {
 219            requireRtpConnection().endCall();
 220        }
 221    }
 222
 223    private void retractSessionProposal() {
 224        final Intent intent = getIntent();
 225        final String action = intent.getAction();
 226        final Account account = extractAccount(intent);
 227        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 228        final String state = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 229        if (!Intent.ACTION_VIEW.equals(action) || state == null || !END_CARD.contains(RtpEndUserState.valueOf(state))) {
 230            resetIntent(account, with, RtpEndUserState.RETRACTED, actionToMedia(intent.getAction()));
 231        }
 232        xmppConnectionService.getJingleConnectionManager().retractSessionProposal(account, with.asBareJid());
 233    }
 234
 235    private void rejectCall(View view) {
 236        requireRtpConnection().rejectCall();
 237        finish();
 238    }
 239
 240    private void acceptCall(View view) {
 241        requestPermissionsAndAcceptCall();
 242    }
 243
 244    private void requestPermissionsAndAcceptCall() {
 245        final List<String> permissions;
 246        if (getMedia().contains(Media.VIDEO)) {
 247            permissions = ImmutableList.of(Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO);
 248        } else {
 249            permissions = ImmutableList.of(Manifest.permission.RECORD_AUDIO);
 250        }
 251        if (PermissionUtils.hasPermission(this, permissions, REQUEST_ACCEPT_CALL)) {
 252            putScreenInCallMode();
 253            checkRecorderAndAcceptCall();
 254        }
 255    }
 256
 257    private void checkRecorderAndAcceptCall() {
 258        checkMicrophoneAvailability();
 259        try {
 260            requireRtpConnection().acceptCall();
 261        } catch (final IllegalStateException e) {
 262            Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
 263        }
 264    }
 265
 266    private void checkMicrophoneAvailability() {
 267        new Thread(() -> {
 268            final long start = SystemClock.elapsedRealtime();
 269            final boolean isMicrophoneAvailable = AppRTCAudioManager.isMicrophoneAvailable();
 270            final long stop = SystemClock.elapsedRealtime();
 271            Log.d(Config.LOGTAG, "checking microphone availability took " + (stop - start) + "ms");
 272            if (isMicrophoneAvailable) {
 273                return;
 274            }
 275            runOnUiThread(() -> Toast.makeText(this, R.string.microphone_unavailable, Toast.LENGTH_LONG).show());
 276        }
 277        ).start();
 278    }
 279
 280    private void putScreenInCallMode() {
 281        putScreenInCallMode(requireRtpConnection().getMedia());
 282    }
 283
 284    private void putScreenInCallMode(final Set<Media> media) {
 285        getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 286        if (!media.contains(Media.VIDEO)) {
 287            final JingleRtpConnection rtpConnection = rtpConnectionReference != null ? rtpConnectionReference.get() : null;
 288            final AppRTCAudioManager audioManager = rtpConnection == null ? null : rtpConnection.getAudioManager();
 289            if (audioManager == null || audioManager.getSelectedAudioDevice() == AppRTCAudioManager.AudioDevice.EARPIECE) {
 290                acquireProximityWakeLock();
 291            }
 292        }
 293    }
 294
 295    @SuppressLint("WakelockTimeout")
 296    private void acquireProximityWakeLock() {
 297        final PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
 298        if (powerManager == null) {
 299            Log.e(Config.LOGTAG, "power manager not available");
 300            return;
 301        }
 302        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 303            if (this.mProximityWakeLock == null) {
 304                this.mProximityWakeLock = powerManager.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, PROXIMITY_WAKE_LOCK_TAG);
 305            }
 306            if (!this.mProximityWakeLock.isHeld()) {
 307                Log.d(Config.LOGTAG, "acquiring proximity wake lock");
 308                this.mProximityWakeLock.acquire();
 309            }
 310        }
 311    }
 312
 313    private void releaseProximityWakeLock() {
 314        if (this.mProximityWakeLock != null && mProximityWakeLock.isHeld()) {
 315            Log.d(Config.LOGTAG, "releasing proximity wake lock");
 316            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 317                this.mProximityWakeLock.release(PowerManager.RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY);
 318            } else {
 319                this.mProximityWakeLock.release();
 320            }
 321            this.mProximityWakeLock = null;
 322        }
 323    }
 324
 325    private void putProximityWakeLockInProperState(final AppRTCAudioManager.AudioDevice audioDevice) {
 326        if (audioDevice == AppRTCAudioManager.AudioDevice.EARPIECE) {
 327            acquireProximityWakeLock();
 328        } else {
 329            releaseProximityWakeLock();
 330        }
 331    }
 332
 333    @Override
 334    protected void refreshUiReal() {
 335
 336    }
 337
 338    @Override
 339    public void onNewIntent(final Intent intent) {
 340        Log.d(Config.LOGTAG, this.getClass().getName() + ".onNewIntent()");
 341        super.onNewIntent(intent);
 342        setIntent(intent);
 343        if (xmppConnectionService == null) {
 344            Log.d(Config.LOGTAG, "RtpSessionActivity: background service wasn't bound in onNewIntent()");
 345            return;
 346        }
 347        final Account account = extractAccount(intent);
 348        final String action = intent.getAction();
 349        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 350        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 351        if (sessionId != null) {
 352            Log.d(Config.LOGTAG, "reinitializing from onNewIntent()");
 353            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 354                return;
 355            }
 356            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 357                Log.d(Config.LOGTAG, "accepting call from onNewIntent()");
 358                requestPermissionsAndAcceptCall();
 359                resetIntent(intent.getExtras());
 360            }
 361        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 362            proposeJingleRtpSession(account, with, actionToMedia(action));
 363            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 364        } else {
 365            throw new IllegalStateException("received onNewIntent without sessionId");
 366        }
 367    }
 368
 369    @Override
 370    void onBackendConnected() {
 371        final Intent intent = getIntent();
 372        final String action = intent.getAction();
 373        final Account account = extractAccount(intent);
 374        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
 375        final String sessionId = intent.getStringExtra(EXTRA_SESSION_ID);
 376        if (sessionId != null) {
 377            if (initializeActivityWithRunningRtpSession(account, with, sessionId)) {
 378                return;
 379            }
 380            if (ACTION_ACCEPT_CALL.equals(intent.getAction())) {
 381                Log.d(Config.LOGTAG, "intent action was accept");
 382                requestPermissionsAndAcceptCall();
 383                resetIntent(intent.getExtras());
 384            }
 385        } else if (asList(ACTION_MAKE_VIDEO_CALL, ACTION_MAKE_VOICE_CALL).contains(action)) {
 386            proposeJingleRtpSession(account, with, actionToMedia(action));
 387            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 388        } else if (Intent.ACTION_VIEW.equals(action)) {
 389            final String extraLastState = intent.getStringExtra(EXTRA_LAST_REPORTED_STATE);
 390            final RtpEndUserState state = extraLastState == null ? null : RtpEndUserState.valueOf(extraLastState);
 391            if (state != null) {
 392                Log.d(Config.LOGTAG, "restored last state from intent extra");
 393                updateButtonConfiguration(state);
 394                updateVerifiedShield(false);
 395                updateStateDisplay(state);
 396                updateProfilePicture(state);
 397                invalidateOptionsMenu();
 398            }
 399            binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 400            if (xmppConnectionService.getJingleConnectionManager().fireJingleRtpConnectionStateUpdates()) {
 401                return;
 402            }
 403            if (END_CARD.contains(state) || xmppConnectionService.getJingleConnectionManager().hasMatchingProposal(account, with)) {
 404                return;
 405            }
 406            Log.d(Config.LOGTAG, "restored state (" + state + ") was not an end card. finishing");
 407            finish();
 408        }
 409    }
 410
 411    private void proposeJingleRtpSession(final Account account, final Jid with, final Set<Media> media) {
 412        checkMicrophoneAvailability();
 413        if (with.isBareJid()) {
 414            xmppConnectionService.getJingleConnectionManager().proposeJingleRtpSession(account, with, media);
 415        } else {
 416            final String sessionId = xmppConnectionService.getJingleConnectionManager().initializeRtpSession(account, with, media);
 417            initializeActivityWithRunningRtpSession(account, with, sessionId);
 418            resetIntent(account, with, sessionId);
 419        }
 420        putScreenInCallMode(media);
 421    }
 422
 423    @Override
 424    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 425        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
 426        if (PermissionUtils.allGranted(grantResults)) {
 427            if (requestCode == REQUEST_ACCEPT_CALL) {
 428                checkRecorderAndAcceptCall();
 429            }
 430        } else {
 431            @StringRes int res;
 432            final String firstDenied = getFirstDenied(grantResults, permissions);
 433            if (Manifest.permission.RECORD_AUDIO.equals(firstDenied)) {
 434                res = R.string.no_microphone_permission;
 435            } else if (Manifest.permission.CAMERA.equals(firstDenied)) {
 436                res = R.string.no_camera_permission;
 437            } else {
 438                throw new IllegalStateException("Invalid permission result request");
 439            }
 440            Toast.makeText(this, getString(res, getString(R.string.app_name)), Toast.LENGTH_SHORT).show();
 441        }
 442    }
 443
 444    @Override
 445    public void onStart() {
 446        super.onStart();
 447        mHandler.postDelayed(mTickExecutor, CALL_DURATION_UPDATE_INTERVAL);
 448    }
 449
 450    @Override
 451    public void onStop() {
 452        mHandler.removeCallbacks(mTickExecutor);
 453        binding.remoteVideo.release();
 454        binding.localVideo.release();
 455        final WeakReference<JingleRtpConnection> weakReference = this.rtpConnectionReference;
 456        final JingleRtpConnection jingleRtpConnection = weakReference == null ? null : weakReference.get();
 457        if (jingleRtpConnection != null) {
 458            releaseVideoTracks(jingleRtpConnection);
 459        }
 460        releaseProximityWakeLock();
 461        super.onStop();
 462    }
 463
 464    private void releaseVideoTracks(final JingleRtpConnection jingleRtpConnection) {
 465        final Optional<VideoTrack> remoteVideo = jingleRtpConnection.getRemoteVideoTrack();
 466        if (remoteVideo.isPresent()) {
 467            remoteVideo.get().removeSink(binding.remoteVideo);
 468        }
 469        final Optional<VideoTrack> localVideo = jingleRtpConnection.getLocalVideoTrack();
 470        if (localVideo.isPresent()) {
 471            localVideo.get().removeSink(binding.localVideo);
 472        }
 473    }
 474
 475    @Override
 476    public void onBackPressed() {
 477        if (isConnected()) {
 478            if (switchToPictureInPicture()) {
 479                return;
 480            }
 481        } else {
 482            endCall();
 483        }
 484        super.onBackPressed();
 485    }
 486
 487    @Override
 488    public void onUserLeaveHint() {
 489        super.onUserLeaveHint();
 490        if (switchToPictureInPicture()) {
 491            return;
 492        }
 493        //TODO apparently this method is not getting called on Android 10 when using the task switcher
 494        if (emptyReference(rtpConnectionReference) && xmppConnectionService != null) {
 495            retractSessionProposal();
 496        }
 497    }
 498
 499    private boolean isConnected() {
 500        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 501        return connection != null && connection.getEndUserState() == RtpEndUserState.CONNECTED;
 502    }
 503
 504    private boolean switchToPictureInPicture() {
 505        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O && deviceSupportsPictureInPicture()) {
 506            if (shouldBePictureInPicture()) {
 507                startPictureInPicture();
 508                return true;
 509            }
 510        }
 511        return false;
 512    }
 513
 514    @RequiresApi(api = Build.VERSION_CODES.O)
 515    private void startPictureInPicture() {
 516        try {
 517            enterPictureInPictureMode(
 518                    new PictureInPictureParams.Builder()
 519                            .setAspectRatio(new Rational(10, 16))
 520                            .build()
 521            );
 522        } catch (final IllegalStateException e) {
 523            //this sometimes happens on Samsung phones (possibly when Knox is enabled)
 524            Log.w(Config.LOGTAG, "unable to enter picture in picture mode", e);
 525        }
 526    }
 527
 528    private boolean deviceSupportsPictureInPicture() {
 529        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
 530            return getPackageManager().hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE);
 531        } else {
 532            return false;
 533        }
 534    }
 535
 536    private boolean shouldBePictureInPicture() {
 537        try {
 538            final JingleRtpConnection rtpConnection = requireRtpConnection();
 539            return rtpConnection.getMedia().contains(Media.VIDEO) && Arrays.asList(
 540                    RtpEndUserState.ACCEPTING_CALL,
 541                    RtpEndUserState.CONNECTING,
 542                    RtpEndUserState.CONNECTED
 543            ).contains(rtpConnection.getEndUserState());
 544        } catch (final IllegalStateException e) {
 545            return false;
 546        }
 547    }
 548
 549    private boolean initializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 550        final WeakReference<JingleRtpConnection> reference = xmppConnectionService.getJingleConnectionManager()
 551                .findJingleRtpConnection(account, with, sessionId);
 552        if (reference == null || reference.get() == null) {
 553            final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession = xmppConnectionService
 554                    .getJingleConnectionManager().getTerminalSessionState(with, sessionId);
 555            if (terminatedRtpSession == null) {
 556                throw new IllegalStateException("failed to initialize activity with running rtp session. session not found");
 557            }
 558            initializeWithTerminatedSessionState(account, with, terminatedRtpSession);
 559            return true;
 560        }
 561        this.rtpConnectionReference = reference;
 562        final RtpEndUserState currentState = requireRtpConnection().getEndUserState();
 563        final boolean verified = requireRtpConnection().isVerified();
 564        if (currentState == RtpEndUserState.ENDED) {
 565            reference.get().throwStateTransitionException();
 566            finish();
 567            return true;
 568        }
 569        final Set<Media> media = getMedia();
 570        if (currentState == RtpEndUserState.INCOMING_CALL) {
 571            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
 572        }
 573        if (JingleRtpConnection.STATES_SHOWING_ONGOING_CALL.contains(requireRtpConnection().getState())) {
 574            putScreenInCallMode();
 575        }
 576        binding.with.setText(getWith().getDisplayName());
 577        updateVideoViews(currentState);
 578        updateStateDisplay(currentState, media);
 579        updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(currentState));
 580        updateButtonConfiguration(currentState, media);
 581        updateProfilePicture(currentState);
 582        invalidateOptionsMenu();
 583        return false;
 584    }
 585
 586    private void initializeWithTerminatedSessionState(final Account account, final Jid with, final JingleConnectionManager.TerminatedRtpSession terminatedRtpSession) {
 587        Log.d(Config.LOGTAG, "initializeWithTerminatedSessionState()");
 588        if (terminatedRtpSession.state == RtpEndUserState.ENDED) {
 589            finish();
 590            return;
 591        }
 592        RtpEndUserState state = terminatedRtpSession.state;
 593        resetIntent(account, with, terminatedRtpSession.state, terminatedRtpSession.media);
 594        updateButtonConfiguration(state);
 595        updateStateDisplay(state);
 596        updateProfilePicture(state);
 597        updateCallDuration();
 598        updateVerifiedShield(false);
 599        invalidateOptionsMenu();
 600        binding.with.setText(account.getRoster().getContact(with).getDisplayName());
 601    }
 602
 603    private void reInitializeActivityWithRunningRtpSession(final Account account, Jid with, String sessionId) {
 604        runOnUiThread(() -> initializeActivityWithRunningRtpSession(account, with, sessionId));
 605        resetIntent(account, with, sessionId);
 606    }
 607
 608    private void resetIntent(final Account account, final Jid with, final String sessionId) {
 609        final Intent intent = new Intent(Intent.ACTION_VIEW);
 610        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
 611        intent.putExtra(EXTRA_WITH, with.toEscapedString());
 612        intent.putExtra(EXTRA_SESSION_ID, sessionId);
 613        setIntent(intent);
 614    }
 615
 616    private void ensureSurfaceViewRendererIsSetup(final SurfaceViewRenderer surfaceViewRenderer) {
 617        surfaceViewRenderer.setVisibility(View.VISIBLE);
 618        try {
 619            surfaceViewRenderer.init(requireRtpConnection().getEglBaseContext(), null);
 620        } catch (IllegalStateException e) {
 621            Log.d(Config.LOGTAG, "SurfaceViewRenderer was already initialized");
 622        }
 623        surfaceViewRenderer.setEnableHardwareScaler(true);
 624    }
 625
 626    private void updateStateDisplay(final RtpEndUserState state) {
 627        updateStateDisplay(state, Collections.emptySet());
 628    }
 629
 630    private void updateStateDisplay(final RtpEndUserState state, final Set<Media> media) {
 631        switch (state) {
 632            case INCOMING_CALL:
 633                Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 634                if (media.contains(Media.VIDEO)) {
 635                    setTitle(R.string.rtp_state_incoming_video_call);
 636                } else {
 637                    setTitle(R.string.rtp_state_incoming_call);
 638                }
 639                break;
 640            case CONNECTING:
 641                setTitle(R.string.rtp_state_connecting);
 642                break;
 643            case CONNECTED:
 644                setTitle(R.string.rtp_state_connected);
 645                break;
 646            case ACCEPTING_CALL:
 647                setTitle(R.string.rtp_state_accepting_call);
 648                break;
 649            case ENDING_CALL:
 650                setTitle(R.string.rtp_state_ending_call);
 651                break;
 652            case FINDING_DEVICE:
 653                setTitle(R.string.rtp_state_finding_device);
 654                break;
 655            case RINGING:
 656                setTitle(R.string.rtp_state_ringing);
 657                break;
 658            case DECLINED_OR_BUSY:
 659                setTitle(R.string.rtp_state_declined_or_busy);
 660                break;
 661            case CONNECTIVITY_ERROR:
 662                setTitle(R.string.rtp_state_connectivity_error);
 663                break;
 664            case CONNECTIVITY_LOST_ERROR:
 665                setTitle(R.string.rtp_state_connectivity_lost_error);
 666                break;
 667            case RETRACTED:
 668                setTitle(R.string.rtp_state_retracted);
 669                break;
 670            case APPLICATION_ERROR:
 671                setTitle(R.string.rtp_state_application_failure);
 672                break;
 673            case SECURITY_ERROR:
 674                setTitle(R.string.rtp_state_security_error);
 675                break;
 676            case ENDED:
 677                throw new IllegalStateException("Activity should have called finishAndReleaseWakeLock();");
 678            default:
 679                throw new IllegalStateException(String.format("State %s has not been handled in UI", state));
 680        }
 681    }
 682
 683    private void updateVerifiedShield(final boolean verified) {
 684        if (isPictureInPicture()) {
 685            this.binding.verified.setVisibility(View.GONE);
 686            return;
 687        }
 688        this.binding.verified.setVisibility(verified ? View.VISIBLE : View.GONE);
 689    }
 690
 691    private void updateProfilePicture(final RtpEndUserState state) {
 692        updateProfilePicture(state, null);
 693    }
 694
 695    private void updateProfilePicture(final RtpEndUserState state, final Contact contact) {
 696        if (state == RtpEndUserState.INCOMING_CALL || state == RtpEndUserState.ACCEPTING_CALL) {
 697            final boolean show = getResources().getBoolean(R.bool.show_avatar_incoming_call);
 698            if (show) {
 699                binding.contactPhoto.setVisibility(View.VISIBLE);
 700                if (contact == null) {
 701                    AvatarWorkerTask.loadAvatar(getWith(), binding.contactPhoto, R.dimen.publish_avatar_size);
 702                } else {
 703                    AvatarWorkerTask.loadAvatar(contact, binding.contactPhoto, R.dimen.publish_avatar_size);
 704                }
 705            } else {
 706                binding.contactPhoto.setVisibility(View.GONE);
 707            }
 708        } else {
 709            binding.contactPhoto.setVisibility(View.GONE);
 710        }
 711    }
 712
 713    private Set<Media> getMedia() {
 714        return requireRtpConnection().getMedia();
 715    }
 716
 717    private void updateButtonConfiguration(final RtpEndUserState state) {
 718        updateButtonConfiguration(state, Collections.emptySet());
 719    }
 720
 721    @SuppressLint("RestrictedApi")
 722    private void updateButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 723        if (state == RtpEndUserState.ENDING_CALL || isPictureInPicture()) {
 724            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 725            this.binding.endCall.setVisibility(View.INVISIBLE);
 726            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 727        } else if (state == RtpEndUserState.INCOMING_CALL) {
 728            this.binding.rejectCall.setContentDescription(getString(R.string.dismiss_call));
 729            this.binding.rejectCall.setOnClickListener(this::rejectCall);
 730            this.binding.rejectCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 731            this.binding.rejectCall.setVisibility(View.VISIBLE);
 732            this.binding.endCall.setVisibility(View.INVISIBLE);
 733            this.binding.acceptCall.setContentDescription(getString(R.string.answer_call));
 734            this.binding.acceptCall.setOnClickListener(this::acceptCall);
 735            this.binding.acceptCall.setImageResource(R.drawable.ic_call_white_48dp);
 736            this.binding.acceptCall.setVisibility(View.VISIBLE);
 737        } else if (state == RtpEndUserState.DECLINED_OR_BUSY) {
 738            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 739            this.binding.rejectCall.setOnClickListener(this::exit);
 740            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 741            this.binding.rejectCall.setVisibility(View.VISIBLE);
 742            this.binding.endCall.setVisibility(View.INVISIBLE);
 743            this.binding.acceptCall.setContentDescription(getString(R.string.record_voice_mail));
 744            this.binding.acceptCall.setOnClickListener(this::recordVoiceMail);
 745            this.binding.acceptCall.setImageResource(R.drawable.ic_voicemail_white_24dp);
 746            this.binding.acceptCall.setVisibility(View.VISIBLE);
 747        } else if (asList(
 748                RtpEndUserState.CONNECTIVITY_ERROR,
 749                RtpEndUserState.CONNECTIVITY_LOST_ERROR,
 750                RtpEndUserState.APPLICATION_ERROR,
 751                RtpEndUserState.RETRACTED,
 752                RtpEndUserState.SECURITY_ERROR
 753        ).contains(state)) {
 754            this.binding.rejectCall.setContentDescription(getString(R.string.exit));
 755            this.binding.rejectCall.setOnClickListener(this::exit);
 756            this.binding.rejectCall.setImageResource(R.drawable.ic_clear_white_48dp);
 757            this.binding.rejectCall.setVisibility(View.VISIBLE);
 758            this.binding.endCall.setVisibility(View.INVISIBLE);
 759            this.binding.acceptCall.setContentDescription(getString(R.string.try_again));
 760            this.binding.acceptCall.setOnClickListener(this::retry);
 761            this.binding.acceptCall.setImageResource(R.drawable.ic_replay_white_48dp);
 762            this.binding.acceptCall.setVisibility(View.VISIBLE);
 763        } else {
 764            this.binding.rejectCall.setVisibility(View.INVISIBLE);
 765            this.binding.endCall.setContentDescription(getString(R.string.hang_up));
 766            this.binding.endCall.setOnClickListener(this::endCall);
 767            this.binding.endCall.setImageResource(R.drawable.ic_call_end_white_48dp);
 768            this.binding.endCall.setVisibility(View.VISIBLE);
 769            this.binding.acceptCall.setVisibility(View.INVISIBLE);
 770        }
 771        updateInCallButtonConfiguration(state, media);
 772    }
 773
 774    private boolean isPictureInPicture() {
 775        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
 776            return isInPictureInPictureMode();
 777        } else {
 778            return false;
 779        }
 780    }
 781
 782    private void updateInCallButtonConfiguration() {
 783        updateInCallButtonConfiguration(requireRtpConnection().getEndUserState(), requireRtpConnection().getMedia());
 784    }
 785
 786    @SuppressLint("RestrictedApi")
 787    private void updateInCallButtonConfiguration(final RtpEndUserState state, final Set<Media> media) {
 788        if (state == RtpEndUserState.CONNECTED && !isPictureInPicture()) {
 789            Preconditions.checkArgument(media.size() > 0, "Media must not be empty");
 790            if (media.contains(Media.VIDEO)) {
 791                final JingleRtpConnection rtpConnection = requireRtpConnection();
 792                updateInCallButtonConfigurationVideo(rtpConnection.isVideoEnabled(), rtpConnection.isCameraSwitchable());
 793            } else {
 794                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
 795                updateInCallButtonConfigurationSpeaker(
 796                        audioManager.getSelectedAudioDevice(),
 797                        audioManager.getAudioDevices().size()
 798                );
 799                this.binding.inCallActionFarRight.setVisibility(View.GONE);
 800            }
 801            if (media.contains(Media.AUDIO)) {
 802                updateInCallButtonConfigurationMicrophone(requireRtpConnection().isMicrophoneEnabled());
 803            } else {
 804                this.binding.inCallActionLeft.setVisibility(View.GONE);
 805            }
 806        } else {
 807            this.binding.inCallActionLeft.setVisibility(View.GONE);
 808            this.binding.inCallActionRight.setVisibility(View.GONE);
 809            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 810        }
 811    }
 812
 813    @SuppressLint("RestrictedApi")
 814    private void updateInCallButtonConfigurationSpeaker(final AppRTCAudioManager.AudioDevice selectedAudioDevice, final int numberOfChoices) {
 815        switch (selectedAudioDevice) {
 816            case EARPIECE:
 817                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_off_black_24dp);
 818                if (numberOfChoices >= 2) {
 819                    this.binding.inCallActionRight.setOnClickListener(this::switchToSpeaker);
 820                } else {
 821                    this.binding.inCallActionRight.setOnClickListener(null);
 822                    this.binding.inCallActionRight.setClickable(false);
 823                }
 824                break;
 825            case WIRED_HEADSET:
 826                this.binding.inCallActionRight.setImageResource(R.drawable.ic_headset_black_24dp);
 827                this.binding.inCallActionRight.setOnClickListener(null);
 828                this.binding.inCallActionRight.setClickable(false);
 829                break;
 830            case SPEAKER_PHONE:
 831                this.binding.inCallActionRight.setImageResource(R.drawable.ic_volume_up_black_24dp);
 832                if (numberOfChoices >= 2) {
 833                    this.binding.inCallActionRight.setOnClickListener(this::switchToEarpiece);
 834                } else {
 835                    this.binding.inCallActionRight.setOnClickListener(null);
 836                    this.binding.inCallActionRight.setClickable(false);
 837                }
 838                break;
 839            case BLUETOOTH:
 840                this.binding.inCallActionRight.setImageResource(R.drawable.ic_bluetooth_audio_black_24dp);
 841                this.binding.inCallActionRight.setOnClickListener(null);
 842                this.binding.inCallActionRight.setClickable(false);
 843                break;
 844        }
 845        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 846    }
 847
 848    @SuppressLint("RestrictedApi")
 849    private void updateInCallButtonConfigurationVideo(final boolean videoEnabled, final boolean isCameraSwitchable) {
 850        this.binding.inCallActionRight.setVisibility(View.VISIBLE);
 851        if (isCameraSwitchable) {
 852            this.binding.inCallActionFarRight.setImageResource(R.drawable.ic_flip_camera_android_black_24dp);
 853            this.binding.inCallActionFarRight.setVisibility(View.VISIBLE);
 854            this.binding.inCallActionFarRight.setOnClickListener(this::switchCamera);
 855        } else {
 856            this.binding.inCallActionFarRight.setVisibility(View.GONE);
 857        }
 858        if (videoEnabled) {
 859            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_black_24dp);
 860            this.binding.inCallActionRight.setOnClickListener(this::disableVideo);
 861        } else {
 862            this.binding.inCallActionRight.setImageResource(R.drawable.ic_videocam_off_black_24dp);
 863            this.binding.inCallActionRight.setOnClickListener(this::enableVideo);
 864        }
 865    }
 866
 867    private void switchCamera(final View view) {
 868        Futures.addCallback(requireRtpConnection().switchCamera(), new FutureCallback<Boolean>() {
 869            @Override
 870            public void onSuccess(@NullableDecl Boolean isFrontCamera) {
 871                binding.localVideo.setMirror(isFrontCamera);
 872            }
 873
 874            @Override
 875            public void onFailure(@NonNull final Throwable throwable) {
 876                Log.d(Config.LOGTAG, "could not switch camera", Throwables.getRootCause(throwable));
 877                Toast.makeText(RtpSessionActivity.this, R.string.could_not_switch_camera, Toast.LENGTH_LONG).show();
 878            }
 879        }, MainThreadExecutor.getInstance());
 880    }
 881
 882    private void enableVideo(View view) {
 883        try {
 884            requireRtpConnection().setVideoEnabled(true);
 885        } catch (final IllegalStateException e) {
 886            Toast.makeText(this, R.string.unable_to_enable_video, Toast.LENGTH_SHORT).show();
 887            return;
 888        }
 889        updateInCallButtonConfigurationVideo(true, requireRtpConnection().isCameraSwitchable());
 890    }
 891
 892    private void disableVideo(View view) {
 893        requireRtpConnection().setVideoEnabled(false);
 894        updateInCallButtonConfigurationVideo(false, requireRtpConnection().isCameraSwitchable());
 895
 896    }
 897
 898    @SuppressLint("RestrictedApi")
 899    private void updateInCallButtonConfigurationMicrophone(final boolean microphoneEnabled) {
 900        if (microphoneEnabled) {
 901            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_black_24dp);
 902            this.binding.inCallActionLeft.setOnClickListener(this::disableMicrophone);
 903        } else {
 904            this.binding.inCallActionLeft.setImageResource(R.drawable.ic_mic_off_black_24dp);
 905            this.binding.inCallActionLeft.setOnClickListener(this::enableMicrophone);
 906        }
 907        this.binding.inCallActionLeft.setVisibility(View.VISIBLE);
 908    }
 909
 910    private void updateCallDuration() {
 911        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
 912        if (connection == null || connection.getMedia().contains(Media.VIDEO)) {
 913            this.binding.duration.setVisibility(View.GONE);
 914            return;
 915        }
 916        final long rtpConnectionStarted = connection.getRtpConnectionStarted();
 917        final long rtpConnectionEnded = connection.getRtpConnectionEnded();
 918        if (rtpConnectionStarted != 0) {
 919            final long ended = rtpConnectionEnded == 0 ? SystemClock.elapsedRealtime() : rtpConnectionEnded;
 920            this.binding.duration.setText(TimeFrameUtils.formatTimePassed(rtpConnectionStarted, ended, false));
 921            this.binding.duration.setVisibility(View.VISIBLE);
 922        } else {
 923            this.binding.duration.setVisibility(View.GONE);
 924        }
 925    }
 926
 927    private void updateVideoViews(final RtpEndUserState state) {
 928        if (END_CARD.contains(state) || state == RtpEndUserState.ENDING_CALL) {
 929            binding.localVideo.setVisibility(View.GONE);
 930            binding.localVideo.release();
 931            binding.remoteVideo.setVisibility(View.GONE);
 932            binding.remoteVideo.release();
 933            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 934            if (isPictureInPicture()) {
 935                binding.appBarLayout.setVisibility(View.GONE);
 936                binding.pipPlaceholder.setVisibility(View.VISIBLE);
 937                if (Arrays.asList(
 938                        RtpEndUserState.APPLICATION_ERROR,
 939                        RtpEndUserState.CONNECTIVITY_ERROR,
 940                        RtpEndUserState.SECURITY_ERROR)
 941                        .contains(state)) {
 942                    binding.pipWarning.setVisibility(View.VISIBLE);
 943                    binding.pipWaiting.setVisibility(View.GONE);
 944                } else {
 945                    binding.pipWarning.setVisibility(View.GONE);
 946                    binding.pipWaiting.setVisibility(View.GONE);
 947                }
 948            } else {
 949                binding.appBarLayout.setVisibility(View.VISIBLE);
 950                binding.pipPlaceholder.setVisibility(View.GONE);
 951            }
 952            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 953            return;
 954        }
 955        if (isPictureInPicture() && (state == RtpEndUserState.CONNECTING || state == RtpEndUserState.ACCEPTING_CALL)) {
 956            binding.localVideo.setVisibility(View.GONE);
 957            binding.remoteVideo.setVisibility(View.GONE);
 958            binding.appBarLayout.setVisibility(View.GONE);
 959            binding.pipPlaceholder.setVisibility(View.VISIBLE);
 960            binding.pipWarning.setVisibility(View.GONE);
 961            binding.pipWaiting.setVisibility(View.VISIBLE);
 962            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 963            return;
 964        }
 965        final Optional<VideoTrack> localVideoTrack = getLocalVideoTrack();
 966        if (localVideoTrack.isPresent() && !isPictureInPicture()) {
 967            ensureSurfaceViewRendererIsSetup(binding.localVideo);
 968            //paint local view over remote view
 969            binding.localVideo.setZOrderMediaOverlay(true);
 970            binding.localVideo.setMirror(requireRtpConnection().isFrontCamera());
 971            addSink(localVideoTrack.get(), binding.localVideo);
 972        } else {
 973            binding.localVideo.setVisibility(View.GONE);
 974        }
 975        final Optional<VideoTrack> remoteVideoTrack = getRemoteVideoTrack();
 976        if (remoteVideoTrack.isPresent()) {
 977            ensureSurfaceViewRendererIsSetup(binding.remoteVideo);
 978            addSink(remoteVideoTrack.get(), binding.remoteVideo);
 979            if (state == RtpEndUserState.CONNECTED) {
 980                binding.appBarLayout.setVisibility(View.GONE);
 981                getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 982            } else {
 983                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 984                binding.remoteVideo.setVisibility(View.GONE);
 985            }
 986            if (isPictureInPicture() && !requireRtpConnection().isMicrophoneEnabled()) {
 987                binding.pipLocalMicOffIndicator.setVisibility(View.VISIBLE);
 988            } else {
 989                binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 990            }
 991        } else {
 992            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
 993            binding.remoteVideo.setVisibility(View.GONE);
 994            binding.pipLocalMicOffIndicator.setVisibility(View.GONE);
 995        }
 996    }
 997
 998    private Optional<VideoTrack> getLocalVideoTrack() {
 999        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1000        if (connection == null) {
1001            return Optional.absent();
1002        }
1003        return connection.getLocalVideoTrack();
1004    }
1005
1006    private Optional<VideoTrack> getRemoteVideoTrack() {
1007        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1008        if (connection == null) {
1009            return Optional.absent();
1010        }
1011        return connection.getRemoteVideoTrack();
1012    }
1013
1014    private void disableMicrophone(View view) {
1015        final JingleRtpConnection rtpConnection = requireRtpConnection();
1016        if (rtpConnection.setMicrophoneEnabled(false)) {
1017            updateInCallButtonConfiguration();
1018        }
1019    }
1020
1021    private void enableMicrophone(View view) {
1022        final JingleRtpConnection rtpConnection = requireRtpConnection();
1023        if (rtpConnection.setMicrophoneEnabled(true)) {
1024            updateInCallButtonConfiguration();
1025        }
1026    }
1027
1028    private void switchToEarpiece(View view) {
1029        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.EARPIECE);
1030        acquireProximityWakeLock();
1031    }
1032
1033    private void switchToSpeaker(View view) {
1034        requireRtpConnection().getAudioManager().setDefaultAudioDevice(AppRTCAudioManager.AudioDevice.SPEAKER_PHONE);
1035        releaseProximityWakeLock();
1036    }
1037
1038    private void retry(View view) {
1039        final Intent intent = getIntent();
1040        final Account account = extractAccount(intent);
1041        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1042        final String lastAction = intent.getStringExtra(EXTRA_LAST_ACTION);
1043        final String action = intent.getAction();
1044        final Set<Media> media = actionToMedia(lastAction == null ? action : lastAction);
1045        this.rtpConnectionReference = null;
1046        Log.d(Config.LOGTAG, "attempting retry with " + with.toEscapedString());
1047        proposeJingleRtpSession(account, with, media);
1048    }
1049
1050    private void exit(final View view) {
1051        finish();
1052    }
1053
1054    private void recordVoiceMail(final View view) {
1055        final Intent intent = getIntent();
1056        final Account account = extractAccount(intent);
1057        final Jid with = Jid.ofEscaped(intent.getStringExtra(EXTRA_WITH));
1058        final Conversation conversation = xmppConnectionService.findOrCreateConversation(account, with, false, true);
1059        final Intent launchIntent = new Intent(this, ConversationsActivity.class);
1060        launchIntent.setAction(ConversationsActivity.ACTION_VIEW_CONVERSATION);
1061        launchIntent.putExtra(ConversationsActivity.EXTRA_CONVERSATION, conversation.getUuid());
1062        launchIntent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_CLEAR_TOP);
1063        launchIntent.putExtra(ConversationsActivity.EXTRA_POST_INIT_ACTION, ConversationsActivity.POST_ACTION_RECORD_VOICE);
1064        startActivity(launchIntent);
1065        finish();
1066    }
1067
1068    private Contact getWith() {
1069        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1070        final Account account = id.account;
1071        return account.getRoster().getContact(id.with);
1072    }
1073
1074    private JingleRtpConnection requireRtpConnection() {
1075        final JingleRtpConnection connection = this.rtpConnectionReference != null ? this.rtpConnectionReference.get() : null;
1076        if (connection == null) {
1077            throw new IllegalStateException("No RTP connection found");
1078        }
1079        return connection;
1080    }
1081
1082    @Override
1083    public void onJingleRtpConnectionUpdate(Account account, Jid with, final String sessionId, RtpEndUserState state) {
1084        Log.d(Config.LOGTAG, "onJingleRtpConnectionUpdate(" + state + ")");
1085        if (END_CARD.contains(state)) {
1086            Log.d(Config.LOGTAG, "end card reached");
1087            releaseProximityWakeLock();
1088            runOnUiThread(() -> getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON));
1089        }
1090        if (with.isBareJid()) {
1091            updateRtpSessionProposalState(account, with, state);
1092            return;
1093        }
1094        if (emptyReference(this.rtpConnectionReference)) {
1095            if (END_CARD.contains(state)) {
1096                Log.d(Config.LOGTAG, "not reinitializing session");
1097                return;
1098            }
1099            //this happens when going from proposed session to actual session
1100            reInitializeActivityWithRunningRtpSession(account, with, sessionId);
1101            return;
1102        }
1103        final AbstractJingleConnection.Id id = requireRtpConnection().getId();
1104        final boolean verified = requireRtpConnection().isVerified();
1105        final Set<Media> media = getMedia();
1106        final Contact contact = getWith();
1107        if (account == id.account && id.with.equals(with) && id.sessionId.equals(sessionId)) {
1108            if (state == RtpEndUserState.ENDED) {
1109                finish();
1110                return;
1111            }
1112            runOnUiThread(() -> {
1113                updateStateDisplay(state, media);
1114                updateVerifiedShield(verified && STATES_SHOWING_SWITCH_TO_CHAT.contains(state));
1115                updateButtonConfiguration(state, media);
1116                updateVideoViews(state);
1117                updateProfilePicture(state, contact);
1118                invalidateOptionsMenu();
1119            });
1120            if (END_CARD.contains(state)) {
1121                final JingleRtpConnection rtpConnection = requireRtpConnection();
1122                resetIntent(account, with, state, rtpConnection.getMedia());
1123                releaseVideoTracks(rtpConnection);
1124                this.rtpConnectionReference = null;
1125            }
1126        } else {
1127            Log.d(Config.LOGTAG, "received update for other rtp session");
1128        }
1129    }
1130
1131    @Override
1132    public void onAudioDeviceChanged(AppRTCAudioManager.AudioDevice selectedAudioDevice, Set<AppRTCAudioManager.AudioDevice> availableAudioDevices) {
1133        Log.d(Config.LOGTAG, "onAudioDeviceChanged in activity: selected:" + selectedAudioDevice + ", available:" + availableAudioDevices);
1134        try {
1135            if (getMedia().contains(Media.VIDEO)) {
1136                Log.d(Config.LOGTAG, "nothing to do; in video mode");
1137                return;
1138            }
1139            final RtpEndUserState endUserState = requireRtpConnection().getEndUserState();
1140            if (endUserState == RtpEndUserState.CONNECTED) {
1141                final AppRTCAudioManager audioManager = requireRtpConnection().getAudioManager();
1142                updateInCallButtonConfigurationSpeaker(
1143                        audioManager.getSelectedAudioDevice(),
1144                        audioManager.getAudioDevices().size()
1145                );
1146            } else if (END_CARD.contains(endUserState)) {
1147                Log.d(Config.LOGTAG, "onAudioDeviceChanged() nothing to do because end card has been reached");
1148            } else {
1149                putProximityWakeLockInProperState(selectedAudioDevice);
1150            }
1151        } catch (IllegalStateException e) {
1152            Log.d(Config.LOGTAG, "RTP connection was not available when audio device changed");
1153        }
1154    }
1155
1156    private void updateRtpSessionProposalState(final Account account, final Jid with, final RtpEndUserState state) {
1157        final Intent currentIntent = getIntent();
1158        final String withExtra = currentIntent == null ? null : currentIntent.getStringExtra(EXTRA_WITH);
1159        if (withExtra == null) {
1160            return;
1161        }
1162        if (Jid.ofEscaped(withExtra).asBareJid().equals(with)) {
1163            runOnUiThread(() -> {
1164                updateVerifiedShield(false);
1165                updateStateDisplay(state);
1166                updateButtonConfiguration(state);
1167                updateProfilePicture(state);
1168                invalidateOptionsMenu();
1169            });
1170            resetIntent(account, with, state, actionToMedia(currentIntent.getAction()));
1171        }
1172    }
1173
1174    private void resetIntent(final Bundle extras) {
1175        final Intent intent = new Intent(Intent.ACTION_VIEW);
1176        intent.putExtras(extras);
1177        setIntent(intent);
1178    }
1179
1180    private void resetIntent(final Account account, Jid with, final RtpEndUserState state, final Set<Media> media) {
1181        final Intent intent = new Intent(Intent.ACTION_VIEW);
1182        intent.putExtra(EXTRA_ACCOUNT, account.getJid().toEscapedString());
1183        if (account.getRoster().getContact(with).getPresences().anySupport(Namespace.JINGLE_MESSAGE)) {
1184            intent.putExtra(EXTRA_WITH, with.asBareJid().toEscapedString());
1185        } else {
1186            intent.putExtra(EXTRA_WITH, with.toEscapedString());
1187        }
1188        intent.putExtra(EXTRA_LAST_REPORTED_STATE, state.toString());
1189        intent.putExtra(EXTRA_LAST_ACTION, media.contains(Media.VIDEO) ? ACTION_MAKE_VIDEO_CALL : ACTION_MAKE_VOICE_CALL);
1190        setIntent(intent);
1191    }
1192
1193    private static boolean emptyReference(final WeakReference<?> weakReference) {
1194        return weakReference == null || weakReference.get() == null;
1195    }
1196}