ims service android

This document is translated from Android official documentation, combined with your own tests, organized as follows.Android Interface definition Language (aidl) allows us to define our own programming interface that enables cross-process communication between the client and service (interprocess communication, IPC). Typically, you cannot communicate directly across processes in

First, what is a service? When do we need to use the service?Service is the services in the Android system, it has a few features: it can not interact directly with the user, it must be explicitly launched by the user or other programs, it has a higher priority, it is lower than the application in the foreground, but h

Service Services in Android and windows are similar. services generally do not have user operation interfaces. They run in a system and are not easily noticed by users. You can use them to develop programs such as monitoring. Service development is relatively simple, as follows:Step 1: Inherit the service classPublic

Two ways to open the service of Android four components: StartService (); Turn on the service.After the service is turned on, the service will run in the background for a long time, even if the caller exits. The service continues to run in the background. The

First, why this article does not introduce the hook system AMS serviceIn a previous article that has been explained in the Android Hook system service, as well as the ability to intercept specific methods, according to the process this article should describe how to hook the system's AMS service to intercept the application's startup process operation, but this a

When you first started learning service, you thought it was a thread encapsulation, and you could perform time-consuming operations. In fact, service is run in the main thread. Direct execution of time-consuming operations can block the main thread. A long time straight ANR. We know that service can perform some background tasks, is the background task is not a

Android BASICS (II), Service and IntentService, androidintentI. Overview the lifecycle of the activity of the four major components in the previous article. This article will introduce another component service that is most similar to the activity and its subclass intentService, the service component is the most simila

9.3 Basic usage of the serviceAfter understanding the technology of Android multithreaded programming, let's go to the topic of this chapter and start learning about the content of the service. As one of the four components of Android, the service also has a lot of very important points of knowledge, we naturally have

Bound service Before a service is bound to an activity, the activity only allows the service to work, but the service cannot return data to the activity. So here we will introduce the bound service. Boundservice or service, so you

purpose of inheriting the binder class is to return the object of this type in the Onbind method * * Implementation of Ireceptionist interface is required to expose the method */private class ServiceB Inder extends Binder implements Ireceptionist{public void Callextendsionnumber () {putextendsion ();} private void Othermethod () {}}}Operating effect:Notice that when we press the Back button, the activity is destroyed and the service initiated by it i

First, let's make sure what the service is. Service is the services in the Android system, it has so many features: it cannot interact directly with the user, it must be explicitly started by a user or other program, it has a higher priority, it has a lower priority than the application in the foreground, but higher priority than other applications in the backgr

Android plug-in development-run the Service and androidapk that are not installed in the apkIf you do not know what plug-in development is, you should first read this blog: Android plug-in development. The previous blog mainly analyzed several difficulties in Android plug-in development from the overall perspective and

Service of four Android ComponentsThere are two ways to enable the Service of four Android components: startService (); enable the Service.After the service is enabled, the service will run in the background for a long time, even

Service is one of the four major components provided by the Android system. Its position is parallel with that of activity, but it is not frequently used by activity. As the name suggests, a service is a kind of service program running in the background. Generally, it rarely interacts with users. The biggest feature is

Android uses Messenger for Service IPC communication analysis, androidipc If you want to perform IPC communication, write an AIDL interface and a Service subclass. Then, implement the AIDL interface and return it to the Activity interface layer as an IBinder. If you do not want to write the AIDL interface file, but want to communicate with the

This example describes the usage of service in Android. Share to everyone for your reference, specific as follows: About the service on the internet has been a lot of, here is about their own through the code to write the service of a little experience and a combination of other people to the

1. DescriptionAndroid background running in a lot of service, they are systemserver on when the system starts, support the normal operation of the system, such as Mountservice Monitoring for SD card installation and removal, Clipboardservice provides the Clipboard function, Packagemanagerservice provides installation removal and viewing of packages, and so on, applications can access the data provided by the servi