broadcast

how to solve discovering other device via Wi-Fi (android API)?

由 馋奶兔 提交于 2019-11-27 16:19:58
recently I follow the steps given from Developer.Android.Com But it seems i have a few luck over there. I tried to discover the available peers nearby, put 'em into the arraylist but seems no luck. I didnt get anything. My Actual 2 Devices are actually android 4.1 and 4.2 Since Wifi Direct is based on API Level 14 which is android 4.0+ so i think my real device is not the problem. The concept I use is using 1 activity and 1 BroadCast Receiver. Please take a look at my code, did I put it wrongly or something I forgot? Chat1Activity.java package com.example.androtut; import java.util.ArrayList;

Angular 2 event broadcast

由 只愿长相守 提交于 2019-11-27 15:59:20
问题 New to Angular 2. I'm working on broadcast a event between same level component. Currently I know EventEmitter just can transfer a event to upper level component. I have checked this this link and know observable may be a way to solve my problem, but the sample in that url seems not work for me. Does anyone know how to use it(observable) for broadcast event or some other way to transfer event to same level components? 回答1: You just need to create some service that will emit messages on which

Unable to receive android.intent.action.EVENT_REMINDER broadcast

由 筅森魡賤 提交于 2019-11-27 15:13:27
问题 I would like to write an application that is triggered when a calendar reminder occurs. I realize there is no officially documented way of doing this, but I have seen in the log that when my calendar alarm goes off on my phone (Droid X), AlertReceiver indicates that it has received an android.intent.action.EVENT_REMINDER: 01-03 11:03:00.029 D 1523 AlertReceiver onReceive: a=android.intent.action.EVENT_REMINDER Intent { act=android.intent.action.EVENT_REMINDER dat=content://com.android

AudioSource.VOICE_CALL not working in android 4.0 but working in android 2.3

由 僤鯓⒐⒋嵵緔 提交于 2019-11-27 12:54:59
VOICE_CALL, VOICE_DOWNLINK ,VOICE_UPLINK not working on android 4.0 but working on android 2.3 (Actual Device),I have uploaded a dummy project to record all outgoing call so that you can see it for your self http://www.mediafire.com/?img6dg5y9ri5c7rrtcajwc5ycgpo2nf you just have to change audioSource = MediaRecorder.AudioSource.MIC; to audioSource = MediaRecorder.AudioSource.VOICE_CALL; on line 118 in TService.java If you come across any error, tell me. Any suggestion related to it will be accepted. After a lot of search I Found that Some Manufactures have closed the access to such function

DownloadManager.ACTION_DOWNLOAD_COMPLETE broadcast receiver receiving same download id more than once with different download statuses in Android

由 泄露秘密 提交于 2019-11-27 11:28:56
I am using Android DownloadManger System Service for downloading some files in following way dwnId = mgr.enqueue(new DownloadManager.Request(serveruri) .setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE) .setAllowedOverRoaming(false) .setTitle(getAlbumName()) .setDescription(getTrackName()) .setDestinationUri(deviceUri) .setShowRunningNotification(true)); where mgr is Download Manager instance, dwnId is unique ID returned. I am also registering for ACTION_DOWNLOAD_COMPLETE registerReceiver(onDownloadComplete, new IntentFilter(DownloadManager

socket.io - how to broadcast messages on a namespace?

由 有些话、适合烂在心里 提交于 2019-11-27 09:22:26
问题 According to socket.io examples: To broadcast, simply add a broadcast flag to emit and send method calls. Broadcasting means sending a message to everyone else except for the socket that starts it. var io = require('socket.io').listen(80); io.sockets.on('connection', function (socket) { socket.broadcast.emit('user connected'); }); I tried to combine this with the new socket.io namsepace feature, so I got this: var chat = ioserver.of('/chat'); chat.on('connection', function (socket) { console

MPI asynchronous broadcast from unknown source

由 强颜欢笑 提交于 2019-11-27 08:53:31
问题 I have a C-project that has n numbers of processors working on a kind of tree search. At any given time of the program, any of these processes may find something of interest and want to send this to all other processors asynchronously. How can I listen for new messages on the other processes without having to loop through all possible senders each loop iteration? I have read other questions about this, for example this one (MPI - Asynchronous Broadcast/Gather), however, all I've seen so far

Problems with SO_BINDTODEVICE Linux socket option

由 喜你入骨 提交于 2019-11-27 08:05:24
I have a PC with two network cards. One ( eth0 ) is for LAN/internet and the other for UDP communication with one microcontroller device. The microcontroller has an IP (192.168.7.2) and a MAC address. The second pc network adapter ( eth1 ) has 192.168.7.1. The microcontroller has a very simple IP stack, so the easiest way for the mc to send UDP packets is to broadcast them. On the PC side I'd like to receive the broadcasts - but only from eth1 . So I try to bind the UDP socket to the eth1 device. The problems (source code below): setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, device, sizeof

UDP-Broadcast on all interfaces

由 风流意气都作罢 提交于 2019-11-27 07:39:33
On a Linux system with a wired and a wireless interface (e.g. 192.168.1.x and 192.168.2.x subnets) I want to send a UDP broadcast that goes out via ALL available interfaces (i.e. both through the wired and the wireless interface). Currently I sendto() to INADDR_BROADCAST, however it seems that the broadcast only is sent through one of the interfaces (not always the same and subsequent broadcasts may use the other interface). Is there a way that I can send a UDP broadcast that goes out through every single interface? First of all, you should consider broadcast obsolete, specially INADDR

Calculating the Broadcast Address in Objective-C

由 一世执手 提交于 2019-11-27 07:13:32
问题 How do I go about calculating the Broadcast Address in Objective C I would like to have the Broadcast Address resolve to the same result as shown in the following Subnet Calculator - http://www.subnet-calculator.com/subnet.php I have the IP Address of my local IOS device and the Subnet Mask. And I know that the Broadcast Address uses the following formula broadcast = ip | ( ~ subnet ) (I am answering my self, as I have not seen this on the Internet anywhere, and also I am not aware of any
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