android messaging emoticons

In the Android messaging mechanism, it not only provides a message loop for Java that application development uses. In fact, the Java mechanism ultimately depends on native to achieve. The native not only provides a set of messaging and processing mechanisms, but also provides a listener mechanism for the I/O time of the custom file descriptor. Let's analyze it f

XMPP is a communication protocol. Because this is an open agreement, many real-time applications use this protocol in order to economize on development costs. The most commonly used combination of Android Asmack +openfire. Asmack is the Android version of Smack, which encapsulates the XMPP protocol and provides a rich API that simplifies operations. OpenFire is an open source IM server, based on XMPP implem

How Android audio and video instant messaging software can be quickly implemented with JNIAudio and Video communicationAs an independent developer or a company that wants to shorten the audio and video development cycle, you want toAndroidThe quickest way to achieve audio and video communication under the platform is to find open source projects or call other companiesAPI。 The reason for this is that the au

WiFi-based Android LAN Instant Messaging Software, wifiandroid The WiFi-based Android LAN Instant Messaging Software communicates with other mobile devices through self-built Wi-Fi hotspots, enabling text chat, voice messaging, file transfer, and other functions, meets basic

1. The Android asynchronous messaging mechanism has the following two ways: (Asynchronous message delivery to resolve thread communication problems)Handler and Asynctask2, the use of handler official interpretation:1), timed tasks: Use Handler.postdelay (Runnable R, time) to execute MSG at specified times.2), inter-thread communication: Perform time-consuming tasks in a child thread when performing a more t

"Course Overview"Hands-on teaching you from scratch to complete the implementation of an Android Business Project, is currently the entire market is not a course, no nonsense to say, please look down."Project Profile"Project name: I US chatIndustry: Mobile Social Instant MessagingLines of code:100,000 +Development period:5 months"Instructor Profile" Jason, a stuffy old man."Knowledge that can be harvested"1. XMPP protocol and Asmack framework2. Collec

Mention of the message mechanism should not be unfamiliar to everyone, in the daily development of the inevitable to be involved in this aspect of the content. From a development perspective, handler is the upper-level interface of the Android messaging mechanism, which makes it possible to interact with handler only during the development process. The handler process is simple, and it makes it easy to swit

calling the Looper loop () method, it enters an infinite loop, and then whenever a message is found in MessageQueue, it is taken out and passed to Handler in the Handlemessage () method. There will only be one Looper object in each thread.After understanding the basic concepts of message, Handler, MessageQueue, and Looper, let's comb through the entire process of asynchronous message processing. You first need to create a Handler object in the main thread and override the Handlemessage () metho

Android's messaging mechanism--handler:handler is a class that the Android SDK provides to developers for easy asynchronous message processing.A Why use Handler1. Message mechanism: communication between different threads. Then the introduction of the Android message mechanism can be used handler mechanism to outline.2. Why does

the TCP connection is allowed, as configured:Restart the SQL Server service and create a new database called "OpenFire" to start the configuration of the server.Start the server, open the extracted folder, go to the Bin directory, double-click Openfire.exe, wait for the program to run for a while, click the "Launch Admin" button to open the console.The program can choose Chinese language, the next step, come to the database configuration interface, I choose SQL Server here, and then enter the f

this thread is It's a bigger trick! Bmob-based Android Instant Messaging application source (a) sequel, mainly updated functionality. One, update more can:1, added support strangers chat, allow to send to non-friend users;2, new support custom message sending, easy for developers to expand;3, the new version greatly increase the stability and timeliness, to ensure that hundreds of arrival;4. Exclude the im

Because of the performance requirements, Android requires that the UI be updated only in the UI thread, and to update the UI in other threads, let's introduce a way to use the handler messaging mechanism.Here's how to update a TextView: Packagecom.example.runonuithreadtest;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.os.Handler;ImportAndroid.widget.TextView; Public classMainactivityexten

); ... msg.recycleUnchecked(); }}Queue.next () takes out the message.Msg.target.dispatchMessage (msg) is equivalent to Handler.dispatchmessage (msg), distributing the message, calling the target handler callback method DispatchMessage.2.5 Processing messagesMessage processing callback method source code is as follows:publicvoiddispatchMessage(Message msg) { ifnull) { handleCallback(msg); else { ifnull) { if (mCallback.handleMessage(msg)) {

. Such as:Fill in the name of the app you created (the content is limited to numbers, uppercase and lowercase letters), such as:(The app name will exist in the appkey you generated, such as: Appkey is easemob-demo#chatdemoin the test demo, then Chatdemo is the name of the app that was filled in.) Registration authorization is optional on request)Once you've filled out the app name, click OK, create a success, and the system will generate Appkey and related configuration information for you, such