broadcast

问题 How can I turn the sceen on ? I tried something like this adb -d shell am broadcast -a android.intent.action.SCREEN_ON It really should work, I send broadcast intent it is received by the system, but the screen doesn't turn on I do not understand what is the problem, is it possible to turn the screen of the device by code ? I mean with software ? Cause it seems like the turning on of the screen is done just by the hardware button press . . . at least I got that felling , am I wrong ? 回答1: I

问题 I use a xmpp client to send announce message, such as Psi or Gajim. All the online users can receive the announce message, except the offline users. I do send the announce to all the users not online users. The offline user can not receive the announce message when it is online again. But the offline user can receive offline message sent from other user. 回答1: I guess you are using external authentication or a custom authentication. In that case, ejabberd cannot access to the full user

问题 Finally found an answer myself, see my answer below I currently start a wifi scan wifiReceiver = new WifiReceiver(); registerReceiver(wifiReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION)); wifiManager.startScan(); and in my broadcastreceiver connect to a wifi class WifiReceiver extends BroadcastReceiver{ @Override public void onReceive(Context context, Intent intent) { Log.e("DEBUG", "Wifi scanned"); SmartWifiChange(); //connect to certain wifi if stuff.

问题 i have an app in the market that handles android.provider.Telephony.SMS_RECEIVED broadcasts. now i realized, that the broadcast is not sent anymore (or at least i don't get it anymore) as soon as handcent sms is installed on the particular device. how is it possible that an app can suppress a broadcast from being sent? is there a way to still get the broadcast? thanks simon 回答1: how is it possible that an app can suppress a broadcast from being sent? SMSes are sent as an ordered broadcast.

问题 I am passing a broadcast variable to all my executors using the following code. The code seems to work, but I don't know if my approach is good enough. Just want to see if anyone has any better suggestions. Thank you very much! val myRddMap = sc.textFile("input.txt").map(t => myParser.parse(t)) val myHashMapBroadcastVar = sparkContext.broadcast(myRddMap.collect().toMap) where myRddMap is of type org.apache.spark.rdd.RDD[(String, (String, String))] Then I have a utility function which I pass

问题 This question already has answers here : UdpClient receive on broadcast address (4 answers) Closed 2 years ago . I have tried a lot, but somehow there seems to be some problem with the code to receive a datagram that is broadcast by a remote host. So could someone please provide me with the code to receive a broadcast message in C# using a UDP connection? 回答1: From http://www.java2s.com/Code/CSharp/Network/ReceiveBroadcast.htm /* C# Network Programming by Richard Blum Publisher: Sybex ISBN:

问题 I have a scenario where I need non-angular code (in this case Facebook and Twitter JS sdk's) to broadcast an event that angular controllers can listen to. Why? After the initial page load, I load and revise content in the page via AJAX. The content has multiple like/tweet buttons attached (like a front page of blog/aggregator). I'd like to add event hooks when a click occurs on either Facebook "Like" button or Twitter "Share" button - there are a few of those in the page, and each is changing

问题 Referring to the Java 6 API docs for the DatagramSocket class: UDP broadcasts sends are always enabled on a DatagramSocket. In order to receive broadcast packets a DatagramSocket should be bound to the wildcard address . In some implementations, broadcast packets may also be received when a DatagramSocket is bound to a more specific address. Could someone tell me what the 'wildcard address' is? And is the following valid for listening for UDP broadcasts: MulticastSocket socket = new

问题 Just trying to receive a UPnP broadcast from a device in my local network. I did find a lot of similar questions and tried a bunch of suggestions, none of theme where successful. I do see the UDP packets with Wireshark, so they are actually received on my computer. Any suggestions? using System; using System.Net; using System.Net.Sockets; using System.Text; public class UDPListener { private const int listenPort = 1900; private static void StartListener() { bool done = false; IPEndPoint

问题 This question already has answers here : bit-wise operation unary ~ (invert) (5 answers) Closed 2 years ago . i'm trying to calculate broadcast address by logic OR and NOT with specified ip and mask, but the func return me smth strange. Why? IP = '192.168.32.16' MASK = '255.255.0.0' def get_ID(ip, mask): ip = ip.split('.') mask = mask.split('.') ip = [int(bin(int(octet)), 2) for octet in ip] mask = [int(bin(int(octet)), 2) for octet in mask] subnet = [str(int(bin(ioctet & moctet), 2)) for