我已经在 android 应用程序中实现 VoIP 呼叫功能有一段时间了，大部分工作已经完成，但是当用户通过应用程序向另一个用户拨打电话时，大部分时间都是同一个人从它所在的地方接听电话初始化。
例如，有两个用户ABC和CBA。当 ABC 呼叫 CBA 时，它是正确完成的，但是当情况相反时，即当 CBA 呼叫 ABC 时，在 Linphone 的传入方法中，它接收远程用户名为 CBA，这意味着 CBA 正在调用本身。
如何解决这个问题呢？我是否以错误的方式应用方法？
我已经完全使用了 Linphone Calling SDK for Android，甚至没有改变它的方法。
下面是接收来电的 LinphoneService 的代码。
public final class LinphoneService extends Service {
/* Listener needs to be implemented in the Service as it calls
* setLatestEventInfo and startActivity() which needs a context.
*/
public static final String START_LINPHONE_LOGS = " ==== Phone information dump ====";
private static LinphoneService instance;
private final static int NOTIF_ID = 1;
private final static int INCALL_NOTIF_ID = 2;
private final static int MESSAGE_NOTIF_ID = 3;
private final static int SAS_NOTIF_ID = 6;
public static boolean isReady() {
return instance != null && instance.mTestDelayElapsed;
}
/**
* @throws RuntimeException service not instantiated
*/
public static LinphoneService instance() {
if (isReady()) return instance;
throw new RuntimeException("LinphoneService not instantiated yet");
}
public Handler mHandler = new Handler();
// private boolean mTestDelayElapsed; // add a timer for testing
private boolean mTestDelayElapsed = true; // no timer
private NotificationManager mNM;
private String mNotificationTitle;
private boolean mDisableRegistrationStatus;
private LinphoneCoreListenerBase mListener;
public static int notifcationsPriority = (Version.sdkAboveOrEqual(Version.API16_JELLY_BEAN_41) ? Notification.PRIORITY_MIN : 0);
private WindowManager mWindowManager;
private Application.ActivityLifecycleCallbacks activityCallbacks;
/*Believe me or not, but knowing the application visibility state on Android is a nightmare.
After two days of hard work I ended with the following class, that does the job more or less reliabily.
*/
class ActivityMonitor implements Application.ActivityLifecycleCallbacks {
private ArrayList<Activity> activities = new ArrayList<Activity>();
private boolean mActive = false;
private int mRunningActivities = 0;
class InactivityChecker implements Runnable {
private boolean isCanceled;
public void cancel() {
isCanceled = true;
}
@Override
public void run() {
synchronized (LinphoneService.this) {
if (!isCanceled) {
if (LinphoneService.ActivityMonitor.this.mRunningActivities == 0 && mActive) {
mActive = false;
LinphoneService.this.onBackgroundMode();
}
}
}
}
}
;
private LinphoneService.ActivityMonitor.InactivityChecker mLastChecker;
@Override
public synchronized void onActivityCreated(Activity activity, Bundle savedInstanceState) {
Log.i("Activity created:" + activity);
if (!activities.contains(activity))
activities.add(activity);
}
@Override
public void onActivityStarted(Activity activity) {
Log.i("Activity started:" + activity);
}
@Override
public synchronized void onActivityResumed(Activity activity) {
Log.i("Activity resumed:" + activity);
if (activities.contains(activity)) {
mRunningActivities++;
Log.i("runningActivities=" + mRunningActivities);
checkActivity();
}
}
@Override
public synchronized void onActivityPaused(Activity activity) {
Log.i("Activity paused:" + activity);
if (activities.contains(activity)) {
mRunningActivities--;
Log.i("runningActivities=" + mRunningActivities);
checkActivity();
}
}
@Override
public void onActivityStopped(Activity activity) {
Log.i("Activity stopped:" + activity);
}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
}
@Override
public synchronized void onActivityDestroyed(Activity activity) {
Log.i("Activity destroyed:" + activity);
if (activities.contains(activity)) {
activities.remove(activity);
}
}
void startInactivityChecker() {
if (mLastChecker != null) mLastChecker.cancel();
LinphoneService.this.mHandler.postDelayed(
(mLastChecker = new LinphoneService.ActivityMonitor.InactivityChecker()), 2000);
}
void checkActivity() {
if (mRunningActivities == 0) {
if (mActive) startInactivityChecker();
} else if (mRunningActivities > 0) {
if (!mActive) {
mActive = true;
LinphoneService.this.onForegroundMode();
}
if (mLastChecker != null) {
mLastChecker.cancel();
mLastChecker = null;
}
}
}
}
protected void onBackgroundMode() {
Log.i("App has entered background mode");
if (LinphonePreferences.instance() != null && LinphonePreferences.instance().isFriendlistsubscriptionEnabled()) {
if (LinphoneManager.isInstanciated())
LinphoneManager.getInstance().subscribeFriendList(false);
}
}
protected void onForegroundMode() {
Log.i("App has left background mode");
if (LinphonePreferences.instance() != null && LinphonePreferences.instance().isFriendlistsubscriptionEnabled()) {
if (LinphoneManager.isInstanciated())
LinphoneManager.getInstance().subscribeFriendList(true);
}
}
private void setupActivityMonitor() {
if (activityCallbacks != null) return;
getApplication().registerActivityLifecycleCallbacks(activityCallbacks = new LinphoneService.ActivityMonitor());
}
@SuppressWarnings("unchecked")
@Override
public void onCreate() {
super.onCreate();
setupActivityMonitor();
// In case restart after a crash. Main in LinphoneActivity
mNotificationTitle = getString(R.string.service_name);
// Needed in order for the two next calls to succeed, libraries must have been loaded first
LinphonePreferences.instance().setContext(getBaseContext());
LinphoneCoreFactory.instance().setLogCollectionPath(getFilesDir().getAbsolutePath());
boolean isDebugEnabled = LinphonePreferences.instance().isDebugEnabled();
LinphoneCoreFactory.instance().enableLogCollection(isDebugEnabled);
LinphoneCoreFactory.instance().setDebugMode(isDebugEnabled, getString(R.string.app_name));
// Dump some debugging information to the logs
Log.i(START_LINPHONE_LOGS);
dumpDeviceInformation();
dumpInstalledLinphoneInformation();
//Disable service notification for Android O
if ((Version.sdkAboveOrEqual(Version.API26_O_80))) {
LinphonePreferences.instance().setServiceNotificationVisibility(false);
mDisableRegistrationStatus = true;
}
mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
mNM.cancel(INCALL_NOTIF_ID); // in case of crash the icon is not removed
if (!LinphoneManager.isInstanciated())
LinphoneManager.createAndStart(LinphoneService.this);
instance = this; // instance is ready once linphone manager has been created
incomingReceivedActivityName = LinphonePreferences.instance().getActivityToLaunchOnIncomingReceived();
android.util.Log.d("linphoneCalling", "Service Strated");
LinphoneManager.getLc().addListener(mListener = new LinphoneCoreListenerBase() {
@Override
public void callState(LinphoneCore lc, LinphoneCall call, LinphoneCall.State state, String message) {
if (instance == null) {
Log.i("Service not ready, discarding call state change to ", state.toString());
return;
}
if (state == LinphoneCall.State.IncomingReceived) {
android.util.Log.d("ServiceStarted", "IncomingCall Status");
onIncomingReceived2(call);
}
if (state == State.CallEnd || state == State.CallReleased || state == State.Error) {
if (LinphoneManager.isInstanciated() && LinphoneManager.getLc() != null && LinphoneManager.getLc().getCallsNb() == 0) {
}
}
if (state == State.CallEnd && call.getCallLog().getStatus() == CallStatus.Missed) {
int missedCallCount = LinphoneManager.getLcIfManagerNotDestroyedOrNull().getMissedCallsCount();
String body;
if (missedCallCount > 1) {
body = getString(R.string.missed_calls_notif_body).replace("%i", String.valueOf(missedCallCount));
} else {
LinphoneAddress address = call.getRemoteAddress();
body = address.getDisplayName();
if (body == null) {
body = address.asStringUriOnly();
}
}
}
if (state == State.StreamsRunning) {
// Workaround bug current call seems to be updated after state changed to streams running
if (getResources().getBoolean(R.bool.enable_call_notification))
refreshIncallIcon(call);
} else {
if (getResources().getBoolean(R.bool.enable_call_notification))
refreshIncallIcon(LinphoneManager.getLc().getCurrentCall());
}
}
@Override
public void globalState(LinphoneCore lc, LinphoneCore.GlobalState state, String message) {
}
@Override
public void registrationState(LinphoneCore lc, LinphoneProxyConfig cfg, LinphoneCore.RegistrationState state, String smessage) {
}
});
try {
mStartForeground = getClass().getMethod("startForeground", mStartFgSign);
mStopForeground = getClass().getMethod("stopForeground", mStopFgSign);
} catch (NoSuchMethodException e) {
Log.e(e, "Couldn't find startForeground or stopForeground");
}
/* if (displayServiceNotification()) {
startForegroundCompat(NOTIF_ID, mNotif);
}*/
if (!mTestDelayElapsed) {
// Only used when testing. Simulates a 5 seconds delay for launching service
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
mTestDelayElapsed = true;
}
}, 5000);
}
//make sure the application will at least wakes up every 10 mn
mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
}
private enum IncallIconState {INCALL, PAUSE, VIDEO, IDLE}
private LinphoneService.IncallIconState mCurrentIncallIconState = LinphoneService.IncallIconState.IDLE;
public void refreshIncallIcon(LinphoneCall currentCall) {
LinphoneCore lc = LinphoneManager.getLc();
}
public void removeSasNotification() {
mNM.cancel(SAS_NOTIF_ID);
}
private static final Class<?>[] mSetFgSign = new Class[]{boolean.class};
private static final Class<?>[] mStartFgSign = new Class[]{
int.class, Notification.class};
private static final Class<?>[] mStopFgSign = new Class[]{boolean.class};
private Method mSetForeground;
private Method mStartForeground;
private Method mStopForeground;
private Object[] mSetForegroundArgs = new Object[1];
private Object[] mStartForegroundArgs = new Object[2];
private Object[] mStopForegroundArgs = new Object[1];
private String incomingReceivedActivityName;
void invokeMethod(Method method, Object[] args) {
try {
method.invoke(this, args);
} catch (InvocationTargetException e) {
// Should not happen.
Log.w(e, "Unable to invoke method");
} catch (IllegalAccessException e) {
// Should not happen.
Log.w(e, "Unable to invoke method");
}
}
/**
* This is a wrapper around the new startForeground method, using the older
* APIs if it is not available.
*/
void startForegroundCompat(int id, Notification notification) {
// If we have the new startForeground API, then use it.
if (mStartForeground != null) {
mStartForegroundArgs[0] = Integer.valueOf(id);
mStartForegroundArgs[1] = notification;
invokeMethod(mStartForeground, mStartForegroundArgs);
return;
}
// Fall back on the old API.
if (mSetForeground != null) {
mSetForegroundArgs[0] = Boolean.TRUE;
invokeMethod(mSetForeground, mSetForegroundArgs);
// continue
}
notifyWrapper(id, notification);
}
/**
* This is a wrapper around the new stopForeground method, using the older
* APIs if it is not available.
*/
void stopForegroundCompat(int id) {
// If we have the new stopForeground API, then use it.
if (mStopForeground != null) {
mStopForegroundArgs[0] = Boolean.TRUE;
invokeMethod(mStopForeground, mStopForegroundArgs);
return;
}
// Fall back on the old API. Note to cancel BEFORE changing the
// foreground state, since we could be killed at that point.
mNM.cancel(id);
if (mSetForeground != null) {
mSetForegroundArgs[0] = Boolean.FALSE;
invokeMethod(mSetForeground, mSetForegroundArgs);
}
}
private void dumpDeviceInformation() {
StringBuilder sb = new StringBuilder();
sb.append("DEVICE=").append(Build.DEVICE).append("\n");
sb.append("MODEL=").append(Build.MODEL).append("\n");
sb.append("MANUFACTURER=").append(Build.MANUFACTURER).append("\n");
sb.append("SDK=").append(Build.VERSION.SDK_INT).append("\n");
sb.append("Supported ABIs=");
for (String abi : Version.getCpuAbis()) {
sb.append(abi + ", ");
}
sb.append("\n");
Log.i(sb.toString());
}
private void dumpInstalledLinphoneInformation() {
PackageInfo info = null;
try {
info = getPackageManager().getPackageInfo(getPackageName(), 0);
} catch (NameNotFoundException nnfe) {
}
if (info != null) {
Log.i("Linphone version is ", info.versionName + " (" + info.versionCode + ")");
} else {
Log.i("Linphone version is unknown");
}
}
/**
* Wrap notifier to avoid setting the linphone icons while the service
* is stopping. When the (rare) bug is triggered, the linphone icon is
* present despite the service is not running. To trigger it one could
* stop linphone as soon as it is started. Transport configured with TLS.
*/
private synchronized void notifyWrapper(int id, Notification notification) {
if (instance != null && notification != null) {
mNM.notify(id, notification);
} else {
Log.i("Service not ready, discarding notification");
}
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
@Override
public void onTaskRemoved(Intent rootIntent) {
android.util.Log.d("TaskRemoved","True");
if (getResources().getBoolean(R.bool.kill_service_with_task_manager)) {
Log.d("Task removed, stop service");
// If push is enabled, don't unregister account, otherwise do unregister
if (LinphonePreferences.instance().isPushNotificationEnabled()) {
LinphoneCore lc = LinphoneManager.getLcIfManagerNotDestroyedOrNull();
if (lc != null) lc.setNetworkReachable(false);
}
stopSelf();
}
super.onTaskRemoved(rootIntent);
}
@Override
public synchronized void onDestroy() {
if (activityCallbacks != null) {
getApplication().unregisterActivityLifecycleCallbacks(activityCallbacks);
activityCallbacks = null;
}
LinphoneCore lc = LinphoneManager.getLcIfManagerNotDestroyedOrNull();
if (lc != null) {
lc.removeListener(mListener);
}
instance = null;
LinphoneManager.destroy();
// Make sure our notification is gone.
stopForegroundCompat(NOTIF_ID);
mNM.cancel(INCALL_NOTIF_ID);
mNM.cancel(MESSAGE_NOTIF_ID);
super.onDestroy();
}
private void onIncomingReceived2(LinphoneCall call) {
String name = call.getRemoteAddress().asString().substring(call.getRemoteAddress().asString().indexOf("\"")+1,call.getRemoteAddress().asString().lastIndexOf("\""));
String myname = MyApplication.getInstance().getPrefManager().getUserName()+" "+MyApplication.getInstance().getPrefManager().getUserLastName();
android.util.Log.d("ServiceStarted", " Values "+ name+" "+myname + call.getUserData());
if (!name.equals(myname)) {
Intent intent = new Intent(getApplicationContext(), TwilioIncomingCallActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
}
当有任何传入呼叫时，服务中的侦听器由名称初始化，LinphoneManager.getLc().addListener它会侦听传入呼叫，其中 If 语句被提及为
if (state == LinphoneCall.State.IncomingReceived) {
android.util.Log.d("ServiceStarted", "IncomingCall Status");
onIncomingReceived2(call);
}
现在在代码的底部有一个方法onIncomingReceived2(LinphoneCall call)。因此，当我从默认方法（即call.getRemoteAddress() ）检查时，我得到的用户名与调用 Initialized 的用户名相同。
因此，当我拨打电话时，它会在同一设备上收到。如果有人能在这方面提供帮助，我将不胜感激。提前致谢。