public static void addService(String name, IBinder service, boolean allowIsolated) {try {getIServiceManager().addService(name, service, allowIsolated);} catch (RemoteException e) {Log.e(TAG, "error in addService", e);}
}private static IServiceManager getIServiceManager() {...// Find the service managersServiceManager = ServiceManagerNative.asInterface(BinderInternal.getContextObject());return sServiceManager;
}

static public IServiceManager asInterface(IBinder obj){...IServiceManager in =(IServiceManager)obj.queryLocalInterface(descriptor);if (in != null) {return in;}return new ServiceManagerProxy(obj);
}

public void addService(String name, IBinder service, boolean allowIsolated)throws RemoteException {Parcel data = Parcel.obtain();Parcel reply = Parcel.obtain();data.writeInterfaceToken(IServiceManager.descriptor);data.writeString(name);data.writeStrongBinder(service);data.writeInt(allowIsolated ? 1 : 0);mRemote.transact(ADD_SERVICE_TRANSACTION, data, reply, 0);reply.recycle();data.recycle();
}

private boolean execTransact(int code, long dataObj, long replyObj,int flags) {Parcel data = Parcel.obtain(dataObj);Parcel reply = Parcel.obtain(replyObj);boolean res;try {res = onTransact(code, data, reply, flags);}...checkParcel(this, code, reply, "Unreasonably large binder reply buffer");reply.recycle();data.recycle();StrictMode.clearGatheredViolations();return res;
}

@Override
public boolean onTransact(int code, Parcel data, Parcel reply, int flags)throws RemoteException {switch (code) {case START_ACTIVITY_TRANSACTION:{data.enforceInterface(IActivityManager.descriptor);IBinder b = data.readStrongBinder();IApplicationThread app = ApplicationThreadNative.asInterface(b);String callingPackage = data.readString();Intent intent = Intent.CREATOR.createFromParcel(data);String resolvedType = data.readString();IBinder resultTo = data.readStrongBinder();String resultWho = data.readString();int requestCode = data.readInt();int startFlags = data.readInt();ProfilerInfo profilerInfo = data.readInt() != 0? ProfilerInfo.CREATOR.createFromParcel(data) : null;Bundle options = data.readInt() != 0? Bundle.CREATOR.createFromParcel(data) : null;int result = startActivity(app, callingPackage, intent, resolvedType,resultTo, resultWho, requestCode, startFlags, profilerInfo, options);reply.writeNoException();reply.writeInt(result);return true;}...