onhandleintent

Reprint Please specify source: http://blog.csdn.net/llew2011/article/details/51373243The service is familiar to everyone, and it is one of the Android Four (SI) Large (DA) group (jing) pieces (gang). But speaking of Intentservice have child boots may be a little strange, look at the name feel and service-related connection. Good, not only has the association and the relationship is not general, Intentservice is the service subclass, so it is also the authentic service, because intentservice with

article, a new thread is enabled in onStartCommand as the working thread to execute network requests, so this will not block the main thread. Therefore, creating a Service with a working thread is a common requirement (because the working thread does not block the main thread). Therefore, to simplify the development of a Service with a working thread, Android, android has developed an additional class called IntentService.IntentService features IntentService has the following features:1.IntentS

block the main thread. In this sense, creating a service with a worker thread is a common requirement (because worker threads do not block the main thread), so Android has developed an additional class--–intentservice to simplify the development of service,android with worker threads. Characteristics of Intentservice Intentservice has the following characteristics: 1. Intentservice comes with a working thread and can consider using Intentservice when our service needs to do some work t

First, the definitionIntentservice is a package class in Android that inherits the service from one of the four components.Second, the roleProcessing asynchronous requests, implementing multithreadingThird, the work flowNote: If you start intentservice multiple times, each time-consuming operation is executed sequentially in the Intentservice Onhandleintent callback method in the queue, completing the automatic end.Iv. Steps of implementation

Android IntentService source code analysisIntentService Introduction: IntentService is. startService (Intent) starts a Service that can process asynchronous requests. When using this Service, you only need to inherit the IntentService and override the onHandleIntent (Intent) method to receive an Intent object, this service will automatically stop the service when the asynchronous task is completed. all requests are processed in the internal work threa

extends Service { private volatile Looper mServiceLooper; private volatile ServiceHandler mServiceHandler; private String mName; private boolean mRedelivery; private final class ServiceHandler extends Handler { public ServiceHandler(Looper looper) { super(looper); } @Override public void handleMessage(Message msg) { // The Custom intentservice subclass mainly implements the onhandleintent function

class for all service. When you inherit this class, you need to open a new thread within the service to do the heavy lifting, because the service defaults to the application's main threads, and it affects the performance of the application.The other one is to inherit Intentservice.It is a subclass of service that uses a worker thread internally to handle all requests, one at a time. This is the best option if your service does not need to synchronize and process multiple requests. All you have

calls android. content. Context # startService (Intent) to send a request, the Service is started and a working thread is built inside it to process the Intent request. When the execution of a worker thread ends, the Service automatically stops. IntentService is an abstract class. You must implement a subclass to inherit it, and you must implement the abstract onHandleIntent method in IntentService to process asynchronous task requests.IntentServic s

the client calls android. content. Context # startService (Intent) to send a request, the Service is started and a working thread is built inside it to process the Intent request. When the execution of a worker thread ends, the Service automatically stops. IntentService is an abstract class. You must implement a subclass to inherit it, and you must implement the abstract onHandleIntent method in IntentService to process asynchronous task requests.Int

"); // The constructors with parameters of the parent class must be called.} @ Override protected void onHandleIntent (Intent intent) {// print the name of the current thread to prove that it is a Log in the Child thread. d ("MyIntentService", "Thread id is" + Thread. currentThread (). getName () ;}@ Override public void onDestroy () {super. onDestroy (); // to prove that IntentService stops its own Log after processing the work. d ("MyIntentService",

[Android Notes] IntentService source code analysis, Android intentserviceThe Service components must be familiar. Note that the Service component runs in the UI thread by default, so it also blocks the main thread. during use, remember not to perform time-consuming operations in the Service. Instead, you should create sub-threads and execute them asynchronously.The IntentService class encapsulates the work of creating sub-threads in the Service (in fact, HandlerThread is created). We only need t

create a new thread to handle service work. Intentservice: it is a subclass of a Service. It uses a working thread to process requests, but can only process one request at a time. It cannot process multiple requests at a time. It needs to implement the onhandleintent () method to receive intent and process client requests. Create by inheriting intentservice: The workflow of intentservice is as follows: Create a worker thread independent

Android source code parsing (4) --) IntentService What is IntentService? In short, IntentService is a Service that contains its own message loops. First, it is a service. Therefore, services have its own characteristics and some of its own attributes, it encapsulates a message queue and a HandlerThread. In its specific abstract method, the onHandleIntent method runs in its message queue thread, let's take a look at its simple usage:Define an IntentSer

Category: C #, Android, VS2015;Date Created: 2016-03-01 I. INTRODUCTIONTo further simplify the use of the intent filter, the Android system also provides a Intentservice class, so that you do not need to rewrite other methods, directly implement a class that inherits from Intentservice, Then rewrite the Onhandleintent method.The Intentservice class inherits from the service class. This class automatically uses worker threads to process all service sta

service using the Intentservice class might be the best option.Intentservice perform the following actions:Intent。创建工作队列，用于将 Intent 逐一传递给 onHandleIntent() 实现，这样您就永远不必担心多线程问题。在处理完所有启动请求后停止服务，因此您永远不必调用 stopSelf()。提供 onBind() 的默认实现（返回 null）。提供 onStartCommand() 的默认实现，可将 Intent 依次发送到工作队列和 onHandleIntent() 实现。综上所述，您只需实现 onHandleIntent() 来完成客户端提供的工作即可。（不过，您还需要为服务提供小型构造

Intentservice definitionIntentservice inheritance and service, used to process asynchronous requests. The client can pass the request to Intentservice through the StartService (Intent) method. Intentservice opens a thread in the OnCreate () function to process all the tasks of the intent request object in turn by Handlerthread.　　 This would prevent the transaction from blocking the main thread (ANR). After executing the work for the intent request object, if no new intent request is reached, the

Oftentimes, we need a background service to do a long running task like downloading a file when we develop Android apps. intentservice is a simple solution. all we need is to configure the manifest XML, adding the new service, and create subclass of intentservice,Implementing the constructor and onhandleintent method. Here is sample code. public class IntentServiceExample extends IntentService {public IntentServiceExample(){super("IntentServiceExampl

What is intentservice?The official explanation is: Intentservice is a base class for services that handle asynchronous requests (expressed as intents) on demand. clients send requests through android. content. context. startservice (intent) CILS; the service is started as needed, handles each intent in turn using a worker thread, and stops itself when it runs out of work. This "work queue processor" pattern is commonly used to offload tasks from an application's main thread. the intentservice c

(Extra_img_path, PATH); Context.startservice (Intent); } Public Uploadimgservice() {Super("Uploadimgservice"); }@Override protected void onhandleintent(Intent Intent) {if(Intent! =NULL) {FinalString action = Intent.getaction ();if(Action_upload_img.equals (ACTION)) {FinalString path = Intent.getstringextra (Extra_img_path); Handleuploadimg (path); } } }Private void handleuploadimg(String Path) {Try{//Analog upload

the same process as the application in which it resides. (2) service is not a new thread, it should not handle time-consuming operations in service. Intentservice a good remedy for this: (1) Intentservice creates a separate worker thread to handle all intent requests. (2) Intentservice creates a separate worker thread to handle the code implemented by the Onhandleintent () method. (3) When all requests have been processed, Intentservice will aut