ANDROID: Services - Revision history

Onnowpurbo at 09:43, 14 July 2022

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Onnowpurbo at 08:20, 14 July 2022

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Onnowpurbo at 05:23, 14 July 2022

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← Older revision		Revision as of 09:43, 14 July 2022
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	A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )		A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )

−	Service memiliki method callback life cycle yang dapat kita terapkan untuk memantau perubahan dalam status service dan kita dapat melakukan pekerjaan pada tahap yang sesuai. Diagram di sebelah kiri berikut menunjukkan ~~siklus hidup~~ saat ~~layanan~~ dibuat dengan startService() dan diagram di sebelah kanan menunjukkan siklus hidup saat layanan dibuat dengan bindService(): (gambar milik: android.com )	+	Service memiliki method callback life cycle yang dapat kita terapkan untuk memantau perubahan dalam status service dan kita dapat melakukan pekerjaan pada tahap yang sesuai. Diagram di sebelah kiri berikut menunjukkan life cycle saat service dibuat dengan startService() dan diagram di sebelah kanan menunjukkan siklus hidup saat layanan dibuat dengan bindService(): (gambar milik: android.com )

← Older revision		Revision as of 09:14, 14 July 2022
Line 13:		Line 13:
	A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )		A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )

−		+	Service memiliki method callback life cycle yang dapat kita terapkan untuk memantau perubahan dalam status service dan kita dapat melakukan pekerjaan pada tahap yang sesuai. Diagram di sebelah kiri berikut menunjukkan siklus hidup saat layanan dibuat dengan startService() dan diagram di sebelah kanan menunjukkan siklus hidup saat layanan dibuat dengan bindService(): (gambar milik: android.com )
−	~~Layanan~~ memiliki ~~metode panggilan balik siklus hidup~~ yang dapat ~~Anda~~ terapkan untuk memantau perubahan dalam status ~~layanan~~ dan ~~Anda~~ dapat melakukan pekerjaan pada tahap yang sesuai. Diagram di sebelah kiri berikut menunjukkan siklus hidup saat layanan dibuat dengan startService() dan diagram di sebelah kanan menunjukkan siklus hidup saat layanan dibuat dengan bindService(): (gambar milik: android.com )

← Older revision		Revision as of 09:00, 14 July 2022
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−	A service is a component that runs in the background to perform long-running operations without needing to interact with the user and it works even if application is destroyed. A service can essentially take two states −	+	Service Layanan adalah komponen yang berjalan di background untuk melakukan operasi yang berjalan lama tanpa perlu berinteraksi dengan pengguna dan berfungsi bahkan jika aplikasi destroyed. Sebuah service pada dasarnya ada dua state
−
−	Layanan adalah komponen yang berjalan di ~~latar belakang~~ untuk melakukan operasi yang berjalan lama tanpa perlu berinteraksi dengan pengguna dan berfungsi bahkan jika aplikasi ~~dihancurkan~~. Sebuah ~~layanan~~ pada dasarnya ~~dapat mengambil~~ dua ~~status~~
−
−

	{\| class="wikitable"		{\| class="wikitable"

@@ Line 16: / Line 16: @@
 A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )
 ==Android Service lifecycle==
 To create an service, you create a Java class that extends the Service base class or one of its existing subclasses. The Service base class defines various callback methods and the most important are given below. You don't need to implement all the callbacks methods. However, it's important that you understand each one and implement those that ensure your app behaves the way users expect.
 {| class="wikitable"
@@ Line 40: / Line 47: @@
 The following skeleton service demonstrates each of the life cycle methods −
   package com.tutorialspoint;
@@ Line 99: / Line 109: @@
 This example will take you through simple steps to show how to create your own Android Service. Follow the following steps to modify the Android application we created in Hello World Example chapter −
@@ Line 122: / Line 134: @@
 Following is the content of the modified main activity file MainActivity.java. This file can include each of the fundamental life cycle methods. We have added startService() and stopService() methods to start and stop the service.
   package com.example.tutorialspoint7.myapplication;
@@ Line 156: / Line 171: @@
 Following is the content of MyService.java. This file can have implementation of one or more methods associated with Service based on requirements. For now we are going to implement only two methods onStartCommand() and onDestroy() −
   package com.example.tutorialspoint7.myapplication;
@@ Line 191: / Line 210: @@
 Following will the modified content of AndroidManifest.xml file. Here we have added <service.../> tag to include our service −
   <?xml version="1.0" encoding="utf-8"?>
@@ Line 217: / Line 238: @@
 Following will be the content of res/layout/activity_main.xml file to include two buttons −
   <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
@@ Line 277: / Line 301: @@
 Let's try to run our modified Hello World! application we just modified. I assume you had created your AVD while doing environment setup. To run the app from Android studio, open one of your project's activity files and click Run Android StudioRun Icon icon from the tool bar. Android Studio installs the app on your AVD and starts it and if everything is fine with your set-up and application, it will display following Emulator window −
 ==Android Service Demo==
 Now to start your service, let's click on Start Service button, this will start the service and as per our programming in onStartCommand() method, a message Service Started will appear on the bottom of the the simulator as follows −
 ==Android Service Start==
 To stop the service, you can click the Stop Service button.
 ==Referensi==
 * https://www.tutorialspoint.com/android/android_services.htm

← Older revision		Revision as of 08:24, 14 July 2022
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	A service is a component that runs in the background to perform long-running operations without needing to interact with the user and it works even if application is destroyed. A service can essentially take two states −		A service is a component that runs in the background to perform long-running operations without needing to interact with the user and it works even if application is destroyed. A service can essentially take two states −
		+
		+	Layanan adalah komponen yang berjalan di latar belakang untuk melakukan operasi yang berjalan lama tanpa perlu berinteraksi dengan pengguna dan berfungsi bahkan jika aplikasi dihancurkan. Sebuah layanan pada dasarnya dapat mengambil dua status
		+

← Older revision		Revision as of 08:20, 14 July 2022
Line 17:		Line 17:

	To create an service, you create a Java class that extends the Service base class or one of its existing subclasses. The Service base class defines various callback methods and the most important are given below. You don't need to implement all the callbacks methods. However, it's important that you understand each one and implement those that ensure your app behaves the way users expect.		To create an service, you create a Java class that extends the Service base class or one of its existing subclasses. The Service base class defines various callback methods and the most important are given below. You don't need to implement all the callbacks methods. However, it's important that you understand each one and implement those that ensure your app behaves the way users expect.
−
−
−	~~\| Example \|\| Example \|\| Example~~
−	\|-
−	~~\| Example \|\| Example \|\| Example~~
−	\|-
−	~~\| Example \|\| Example \|\| Example~~
−	\|}
−

	{\| class="wikitable"		{\| class="wikitable"

@@ Line 3: / Line 3: @@
 {| class="wikitable"
-|+ Caption text
+|+ State dari Service
 |-
-| Example || Example || Example
+! Sr.No. !! State !! Description
 |-
-| Example || Example || Example
+| 1 || Started || A service is started when an application component, such as an activity, starts it by calling startService(). Once started, a service can run in the background indefinitely, even if the component that started it is destroyed.
 |-
-| Example || Example || Example
+| 2 || Bound || A service is bound when an application component binds to it by calling bindService(). A bound service offers a client-server interface that allows components to interact with the service, send requests, get results, and even do so across processes with interprocess communication (IPC).
 |}
 A service has life cycle callback methods that you can implement to monitor changes in the service's state and you can perform work at the appropriate stage. The following diagram on the left shows the life cycle when the service is created with startService() and the diagram on the right shows the life cycle when the service is created with bindService(): (image courtesy : android.com )
@@ Line 27: / Line 18: @@
 To create an service, you create a Java class that extends the Service base class or one of its existing subclasses. The Service base class defines various callback methods and the most important are given below. You don't need to implement all the callbacks methods. However, it's important that you understand each one and implement those that ensure your app behaves the way users expect.
-{| class="wikitable"
 | Example || Example || Example
 |-
@@ Line 40: / Line 27: @@
-Sr.No.	Callback & Description
+{| class="wikitable"
-	onStartCommand()
+|+ Caption text
-        The system calls this method when another component, such as an activity, requests that the service be started, by calling startService(). If you implement this method, it is your responsibility to stop the service when its work is done, by calling stopSelf() or stopService() methods.
+|-
-	onBind()
+! Sr.No. !! Callback !! Description
-        The system calls this method when another component wants to bind with the service by calling bindService(). If you implement this method, you must provide an interface that clients use to communicate with the service, by returning an IBinder object. You must always implement this method, but if you don't want to allow binding, then you should return null.
+|-
-	onUnbind()
+| 1 || onStartCommand() || The system calls this method when another component, such as an activity, requests that the service be started, by calling startService(). If you implement this method, it is your responsibility to stop the service when its work is done, by calling stopSelf() or stopService() methods.
-        The system calls this method when all clients have disconnected from a particular interface published by the service.
+|-
-	onRebind()
+| 2 || onBind() || The system calls this method when another component wants to bind with the service by calling bindService(). If you implement this method, you must provide an interface that clients use to communicate with the service, by returning an IBinder object. You must always implement this method, but if you don't want to allow binding, then you should return null.
-        The system calls this method when new clients have connected to the service, after it had previously been notified that all had disconnected in its onUnbind(Intent).
+|-
-	onCreate()
+| 3 || onUnbind() || The system calls this method when all clients have disconnected from a particular interface published by the service.
-        The system calls this method when the service is first created using onStartCommand() or onBind(). This call is required to perform one-time set-up.
+|-
-	onDestroy()
+| 4 || onRebind() || The system calls this method when new clients have connected to the service, after it had previously been notified that all had disconnected in its onUnbind(Intent).
-        The system calls this method when the service is no longer used and is being destroyed. Your service should implement this to clean up any resources such as threads, registered listeners, receivers, etc.
+|-
 The following skeleton service demonstrates each of the life cycle methods −
@@ Line 114: / Line 105: @@
 This example will take you through simple steps to show how to create your own Android Service. Follow the following steps to modify the Android application we created in Hello World Example chapter −
 {| class="wikitable"
-|+ Caption text
+|+ Step Android Aplikasi
 |-
-! Header text !! Header text !! Header text
+| 4 || Define your service in AndroidManifest.xml file using <service.../> tag. An application can have one or more services without any restrictions.
 |-
-| Example || Example || Example
+| 5 || Modify the default content of res/layout/activity_main.xml file to include two buttons in linear layout.
 |-
-| Example || Example || Example
+| 6 || No need to change any constants in res/values/strings.xml file. Android studio take care of string values
 |-
-| Example || Example || Example
+| 7 || Run the application to launch Android emulator and verify the result of the changes done in the application.
 |}
 Following is the content of the modified main activity file MainActivity.java. This file can include each of the fundamental life cycle methods. We have added startService() and stopService() methods to start and stop the service.

← Older revision		Revision as of 05:22, 14 July 2022
Line 1:		Line 1:
	A service is a component that runs in the background to perform long-running operations without needing to interact with the user and it works even if application is destroyed. A service can essentially take two states −		A service is a component that runs in the background to perform long-running operations without needing to interact with the user and it works even if application is destroyed. A service can essentially take two states −
		+
		+
		+	{\| class="wikitable"
		+	\|+ Caption text
		+	\|-
		+	! Header text !! Header text !! Header text
		+	\|-
		+	\| Example \|\| Example \|\| Example
		+	\|-
		+	\| Example \|\| Example \|\| Example
		+	\|-
		+	\| Example \|\| Example \|\| Example
		+	\|}
		+

	Sr.No. State & Description		Sr.No. State & Description