bindService流程

        bindService(i, object : ServiceConnection {override fun onServiceDisconnected(p0: ComponentName?) {}override fun onServiceConnected(p0: ComponentName?, p1: IBinder?) {var msg = Message()msg.arg1 = 119msg.replyTo = Messenger(handler)Messenger(p1).send(msg)}}, Service.BIND_AUTO_CREATE)

    ContextWrapper@Overridepublic boolean bindService(Intent service, ServiceConnection conn,int flags) {return mBase.bindService(service, conn, flags);}

ContextImpl.java@Overridepublic boolean bindService(Intent service, ServiceConnection conn, int flags) {warnIfCallingFromSystemProcess();return bindServiceCommon(service, conn, flags, null, mMainThread.getHandler(), null,getUser());}private boolean bindServiceCommon(Intent service, ServiceConnection conn, int flags,String instanceName, Handler handler, Executor executor, UserHandle user) {// Keep this in sync with DevicePolicyManager.bindDeviceAdminServiceAsUser.IServiceConnection sd;if (conn == null) {throw new IllegalArgumentException("connection is null");}if (handler != null && executor != null) {throw new IllegalArgumentException("Handler and Executor both supplied");}if (mPackageInfo != null) {if (executor != null) {sd = mPackageInfo.getServiceDispatcher(conn, getOuterContext(), executor, flags);} else {sd = mPackageInfo.getServiceDispatcher(conn, getOuterContext(), handler, flags);}} else {throw new RuntimeException("Not supported in system context");}validateServiceIntent(service);try {IBinder token = getActivityToken();if (token == null && (flags&BIND_AUTO_CREATE) == 0 && mPackageInfo != null&& mPackageInfo.getApplicationInfo().targetSdkVersion< android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) {flags |= BIND_WAIVE_PRIORITY;}service.prepareToLeaveProcess(this);//AMS 第一次跨进程 IBinder b = ServiceManager.getService(Context.ACTIVITY_SERVICE);int res = ActivityManager.getService().bindIsolatedService(mMainThread.getApplicationThread(), getActivityToken(), service,service.resolveTypeIfNeeded(getContentResolver()),sd, flags, instanceName, getOpPackageName(), user.getIdentifier());if (res < 0) {throw new SecurityException("Not allowed to bind to service " + service);}return res != 0;} catch (RemoteException e) {throw e.rethrowFromSystemServer();}}

ActivityManagerService.javapublic int bindIsolatedService(IApplicationThread caller, IBinder token, Intent service,String resolvedType, IServiceConnection connection, int flags, String instanceName,String callingPackage, int userId) throws TransactionTooLargeException {synchronized(this) {return mServices.bindServiceLocked(caller, token, service,resolvedType, connection, flags, instanceName, callingPackage, userId);}}

ActiveServicesint bindServiceLocked(IApplicationThread caller, IBinder token, Intent service,String resolvedType, final IServiceConnection connection, int flags,String instanceName, String callingPackage, final int userId)throws TransactionTooLargeException {bringUpServiceLocked(serviceRecord,serviceIntent.getFlags(),callerFg, false, false);//final IServiceConnection conn;  // The client connection.c.conn.connected(s.name, b.intent.binder, false);}private String bringUpServiceLocked(ServiceRecord r, int intentFlags, boolean execInFg,boolean whileRestarting, boolean permissionsReviewRequired)throws TransactionTooLargeException {realStartServiceLocked(r, app, execInFg);}private final void realStartServiceLocked(ServiceRecord r,ProcessRecord app, boolean execInFg) throws RemoteException {app.thread.scheduleCreateService(r, r.serviceInfo,mAm.compatibilityInfoForPackage(r.serviceInfo.applicationInfo),app.getReportedProcState());requestServiceBindingsLocked(r, execInFg);}private final boolean requestServiceBindingLocked(ServiceRecord r, IntentBindRecord i,boolean execInFg, boolean rebind) throws TransactionTooLargeException {r.app.thread.scheduleBindService(r, i.intent.getIntent(), rebind,r.app.getReportedProcState());
}ApplicationThread
sendMessage(H.BIND_SERVICE, s);ActivityThreadcase BIND_SERVICE:Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "serviceBind");handleBindService((BindServiceData)msg.obj);Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);break;handleBindService{IBinder binder = s.onBind(data.intent);ActivityManager.getService().publishService(data.token, data.intent, binder);
}ActivityManagerService.java
mServices.publishServiceLocked((ServiceRecord)token, intent, service);ActiveServices.java
c.conn.connected(r.name, service, false);

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