chat

问题 I write client-server chat using sockets. Help me please understand how send the list of current registered users from server to clients and update it when list changed. I read this similar post but steel don't understand how to do it. I used BufferedReader and PrintWriter streams for sending and receiving messages. And I don't want sending the list of the users any time when clients send messages. I keep list of users in a map as a key set on the server side. public class Server{ private

问题 I'm getting this problem while executing a modified BluetoothChat app. The app shows the devices, starts connecting to it, and then crashes. I've been testing this and it happens on this thread. Here is the code and the LogCat: public class ConnectedThread extends Thread { // Debugging private static final String TAG = "BluetoothChatService"; private static final boolean D = true; public ConnectedThread(BluetoothSocket socket) { Log.d(TAG, "create ConnectedThread"); GlobalVar.mmSocket =

问题 I am using QuickBlox iOS SDK for vidoe chating in my app. It works fine. Now I want to record the chat video and save it in camera roll. How can I do that. I have gone through their documentation and implemented this - -(IBAction)record:(id)sender{ // Create video Chat videoChat = [[QBChat instance] createAndRegisterVideoChatInstance]; [videoChat setIsUseCustomVideoChatCaptureSession:YES]; // Create capture session captureSession = [[AVCaptureSession alloc] init]; // ... setup capture session

问题 chat image for chat ui have 3 type which is text , image , and carousel . am i need to make 3 custom cell for one tableView and how to do that ? 回答1: Yes you have to create three custom cell, for crousal either use third party or a collection view inside tableview cell. for eg: func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let cellIncomming = tableView.dequeueReusableCell(withIdentifier: "IncommingChatCell") as! IncommingChatCell let

问题 I am trying to solve the error of class not found. I googling from last 2 weeks but cant solve this error.. I try all stackoverflow questions but cant help any to me. 06-18 17:42:32.171: E/AndroidRuntime(17161): FATAL EXCEPTION: main 06-18 17:42:32.171: E/AndroidRuntime(17161): java.lang.RuntimeException: Unableto instantiate activity ComponentInfo{com.quickblox.sample.chat/com.quickblox.sample.chat.ui.activities.SplashActivity}: java.lang.ClassNotFoundException: Didn't find class "com

问题 So, every time I refresh the page, it seems like sockjs is creating a new connection. I am saving every message to my mongodb on every channel.onmessage, so if I refresh my page 7 times and send a message, I would save 7 messages of the same content into my mongodb. This is very problematic because when I retrieve those messages when I go into the chat room, to see the log, I would see bunch of duplicate messages. I want to keep track of all connections that are 'active', and if a user tries

问题 I am building a chatapp using firebase database. I need to show online users, how can I do that? I already tried this connectedRef = FirebaseDatabase.getInstance().getReference(".info/connected"); connectedRef.addValueEventListener(new ValueEventListener() { @Override public void onDataChange(DataSnapshot snapshot) { boolean connected = snapshot.getValue(Boolean.class); if (connected) { } else { } } @Override public void onCancelled(DatabaseError error) { System.err.println("Listener was

问题 I have application where pubnub chat feature is been used. I want to perform below feature 1)register / login user in pubnub programatically for chat 2)Get list of the all the users 3)Make friend and send 1st message to the user I am aware about how to create the channel. I had created channel by below code : PNConfiguration *configuration = [PNConfiguration configurationWithPublishKey:@"pub-c-XXXXXXXXXXXX-a2bf-XXXX-XXXX-XXXXXXXXXXXX"subscribeKey:@"sub-c-XXXXXXXXXXXX-02d0-XXXX-XXXX

问题 I have a client that is requesting the addition of a chat room system to his website. The site is built on a windows server that I have no direct access to, so I'm largely restricted to working with .Net solutions. Although I could build something from the ground up, I feel it would be quite intensive to build a fully-featured chat room system into this site from scratch. As a result, I am looking for a pre-existing chat room system that I can simply plug into his site and configure/customize

问题 Can anyone explain me how to carry out chat between two users in react native.Please specify any library for chat except twilio,xmpp and simple chat. Thanks 回答1: Try using sendbird. I built a chat app in react native with their SDK about a year ago and there were some kinks. But they've solved pretty much everything now and it works well and they've updated their documentation 回答2: you can use this awesome library for implementing you chat https://github.com/FaridSafi/react-native-gifted-chat