本文详细介绍了Android中的IntentService组件，它是Service的子类，专门用于处理客户端通过startService(Intent)发送的异步请求。IntentService通过内部创建的HandlerThread来处理这些请求，避免阻塞主线程。文中还提供了一个具体的例子，展示了如何实现IntentService并处理Intent。
IntentService 简介
IntentService是Service类的子类，用来处理异步请求。
有两个主要特点
1、可以直接在子线程中执行耗时任务。
2、在执行完耗时任务后会自动关闭自身service。
IntentService 内部包含一个Handler，耗时任务在handleMessage方法中执行（耗时操作如果在onStartCommand 中，会引发主线程阻塞，从而引起异常）。
IntentService 源码中，在serviceonCreat() 时会创建一个子线程，获取该子线程的Looper，并将默认的Handler绑定该Looper。
在service开启后，onStart方法中调用已初始化好的handle，发送一个message给自身处理（msg.obj=intent）。handleMessage中执行了两个方法：
1、执行一个回调接口，该回调方法onHandleIntent(Intent arg0),在IntentService 中实现作为执行耗时任务的方法onHandleIntent（是在子线程中运行的）。
2、执行stopSelf(msg.arg1)，关闭自身Service。
IntentService
是Service类的子类，用来处理异步请求。客户端可以通过startService(Intent)方法传递请求给
IntentService
。
IntentService
在
onCreate()
函数中通过
HandlerThread
单独开启一个线程来处理所有Intent请求对象（通过startService的方式发送过来的）所对应的任务，这样以免事务处理阻塞主线程。
执行完所一个Intent请求对象所对应的工作之后，如果没有新的Intent请求达到，则自动停止Service；否则执行下一个Intent请求所对应的任务。
IntentService在处理事务时，还是采用的Handler方式，创建一个名叫
ServiceHandler
的内部Handler，并把它直接绑定到
HandlerThread所对应的子线程。
ServiceHandler把处理
一个intent所对应的事务都封装到叫做
onHandleInten
t的虚函数；因此我们直接实现
虚函数
onHandleIntent
，再在里面根据Intent的不同进行不同的事务处理就可以了。
另外，
IntentService默认实现了Onbind（）方法，返回值为null。
使用IntentService需要两个步骤：
1
、写构造函数
2
、
实现
虚函数
onHandleIntent
，并在里面根据Intent的不同进行不同的事务处理就可以了。
好处：处理异步请求的时候可以减少写代码的工作量，比较轻松地实现项目的需求
注意：
IntentService的构造函数一定是参数为空的构造函数，然后再在其中调用
super("name")这种形式的构造函数。
因为Service的实例化是系统来完成的，而且系统是用
参数为空的
构造函数来
实例化
Service的
| Public Constructors | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
IntentService(
String name)
Creates an IntentService.
| |||||||||||
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| IBinder |
onBind(
Intent intent)
Unless you provide binding for your service, you don't need to implement this method, because the default implementation returns null.
| ||||||||||
| void |
onCreate()
Called by the system when the service is first created.
| ||||||||||
| void |
onDestroy()
Called by the system to notify a Service that it is no longer used and is being removed.
| ||||||||||
| void |
onStart(
Intent intent, int startId)
This method is deprecated. Implement onStartCommand(Intent, int, int) instead.
| ||||||||||
| int |
onStartCommand(
Intent intent, int flags, int startId)
You should not override this method for your IntentService.
| ||||||||||
| void |
setIntentRedelivery(boolean enabled)
Sets intent redelivery preferences.
If enabled is true, If enabled is false (the default), | ||||||||||
| Protected Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| abstract void |
onHandleIntent(
Intent intent)
This method is invoked on the worker thread with a request to process.
This method is invoked on the worker thread with a request to process. Only one Intent is processed at a time, but the processing happens on a worker thread that runs independently from other application logic. So, if this code takes a long time, it will hold up other requests to the same IntentService, but it will not hold up anything else. When all requests have been handled, the IntentService stops itself, so you should not call
stopSelf()
.
该函数用于针对Intent的不同进行不同的事务处理就可以了.执行完所一个Intent请求对象所对应的工作之后，如果没有新的Intent请求达到，
则自动停止Service；否则
ServiceHandler会取得
下一个Intent请求传人该函数来处理其所对应的任务。
| ||||||||||
实例1
MyIntentService.java文件
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p><div><span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> com</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">lenovo</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">robin</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">test</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">app</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">IntentService</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">content</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">util</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Log</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div>
</div><div><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyIntentService</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">extends</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">IntentService</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">static</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> TAG</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="str" style="color: rgb(0, 136, 0);">"robin"</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">MyIntentService</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">super</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"com.lenovo.robin.test.MyIntentService"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Log</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">TAG</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="str" style="color: rgb(0, 136, 0);">" is constructed"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">protected</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onHandleIntent</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> arg0</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Log</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">TAG</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="str" style="color: rgb(0, 136, 0);">"begin onHandleIntent() in "</span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">try</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Thread</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">sleep</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="lit" style="color: rgb(0, 102, 102);">10</span><span class="pun" style="color: rgb(102, 102, 0);">*</span><span class="lit" style="color: rgb(0, 102, 102);">1000</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">catch</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">InterruptedException</span><span class="pln"> e</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="pln"> e</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">printStackTrace</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Log</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">TAG</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="str" style="color: rgb(0, 136, 0);">"end onHandleIntent() in "</span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onDestroy</span><span class="pun" style="color: rgb(102, 102, 0);">()</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">super</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">onDestroy</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Log</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">i</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">TAG</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="str" style="color: rgb(0, 136, 0);">" is destroy"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p>
启动
MyIntentServic的代码片段
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">this</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="typ" style="color: rgb(102, 0, 102);">MyIntentService</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pln">startService</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">intent</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pln">startService</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">intent</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pln">startService</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">intent</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p>
AndroidManifest.xml文件代码片段
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"><span class="tag" style="color: rgb(0, 0, 136);"><service</span><span class="pln"> </span><span class="atn" style="color: rgb(102, 0, 102);">android:name</span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="atv" style="color: rgb(0, 136, 0);">".MyIntentService"</span><span class="pln"> </span><span class="tag" style="color: rgb(0, 0, 136);">/></span></p>
运行结果
09-14 22:23:34.730: I/robin(30943): com.lenovo.robin.test.MyIntentService@40541370 is
constructed
09-14 22:23:34.730: I/robin(30943):
begin
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:23:44.730: I/robin(30943):
end
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:23:44.730: I/robin(30943):
begin
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:23:54.740: I/robin(30943):
end
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:23:54.740: I/robin(30943):
begin
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:24:04.739: I/robin(30943):
end
onHandleIntent() in com.lenovo.robin.test.MyIntentService@
40541370
09-14 22:24:04.739: I/robin(30943): com.lenovo.robin.test.MyIntentService@40541370 is
destroy
IntentService源码
<p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p><div><span class="kwd" style="color: rgb(0, 0, 136);">package</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">app</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div>
</div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">content</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">os</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Handler</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">os</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">HandlerThread</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">os</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">IBinder</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">os</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Looper</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="kwd" style="color: rgb(0, 0, 136);">import</span><span class="pln"> android</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">os</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="typ" style="color: rgb(102, 0, 102);">Message</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div>
</div><div><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">abstract</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">IntentService</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">extends</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Service</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">volatile</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Looper</span><span class="pln"> mServiceLooper</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">volatile</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">ServiceHandler</span><span class="pln"> mServiceHandler</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> mName</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> mRedelivery</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div>
</div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">private</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">final</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">class</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">ServiceHandler</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">extends</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Handler</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">ServiceHandler</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Looper</span><span class="pln"> looper</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">super</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">looper</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> handleMessage</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Message</span><span class="pln"> msg</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> onHandleIntent</span><span class="pun" style="color: rgb(102, 102, 0);">((</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln">msg</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">obj</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> stopSelf</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">msg</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">arg1</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">IntentService</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">String</span><span class="pln"> name</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">super</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> mName </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> name</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> setIntentRedelivery</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="kwd" style="color: rgb(0, 0, 136);">boolean</span><span class="pln"> enabled</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> mRedelivery </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> enabled</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onCreate</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">// TODO: It would be nice to have an option to hold a partial wakelock</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> // during processing, and to have a static startService(Context, Intent)</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> // method that would launch the service & hand off a wakelock.</span></div><div>
</div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">super</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">onCreate</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">HandlerThread</span><span class="pln"> thread </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">HandlerThread</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="str" style="color: rgb(0, 136, 0);">"IntentService["</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> mName </span><span class="pun" style="color: rgb(102, 102, 0);">+</span><span class="pln"> </span><span class="str" style="color: rgb(0, 136, 0);">"]"</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> thread</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">start</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div>
</div><div><span class="pln"> mServiceLooper </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> thread</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">getLooper</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> mServiceHandler </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">new</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">ServiceHandler</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">mServiceLooper</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onStart</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> startId</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">Message</span><span class="pln"> msg </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> mServiceHandler</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">obtainMessage</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> msg</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">arg1 </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> startId</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> msg</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">obj </span><span class="pun" style="color: rgb(102, 102, 0);">=</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> mServiceHandler</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">sendMessage</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">msg</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="com" style="color: rgb(136, 0, 0);">/**</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> * You should not override this method for your IntentService. Instead,</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> * override {@link #onHandleIntent}, which the system calls when the IntentService</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> * receives a start request.</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> * @see android.app.Service#onStartCommand</span></div><div><span class="com" style="color: rgb(136, 0, 0);"> */</span></div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> onStartCommand</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> flags</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">int</span><span class="pln"> startId</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> onStart</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="pln">intent</span><span class="pun" style="color: rgb(102, 102, 0);">,</span><span class="pln"> startId</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> mRedelivery </span><span class="pun" style="color: rgb(102, 102, 0);">?</span><span class="pln"> START_REDELIVER_INTENT </span><span class="pun" style="color: rgb(102, 102, 0);">:</span><span class="pln"> START_NOT_STICKY</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onDestroy</span><span class="pun" style="color: rgb(102, 102, 0);">()</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> mServiceLooper</span><span class="pun" style="color: rgb(102, 102, 0);">.</span><span class="pln">quit</span><span class="pun" style="color: rgb(102, 102, 0);">();</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div><span class="pln"> </span><span class="lit" style="color: rgb(0, 102, 102);">@Override</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">public</span><span class="pln"> </span><span class="typ" style="color: rgb(102, 0, 102);">IBinder</span><span class="pln"> onBind</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">)</span><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">{</span></div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">return</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">null</span><span class="pun" style="color: rgb(102, 102, 0);">;</span></div><div><span class="pln"> </span><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><div>
</div><div><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">protected</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">abstract</span><span class="pln"> </span><span class="kwd" style="color: rgb(0, 0, 136);">void</span><span class="pln"> onHandleIntent</span><span class="pun" style="color: rgb(102, 102, 0);">(</span><span class="typ" style="color: rgb(102, 0, 102);">Intent</span><span class="pln"> intent</span><span class="pun" style="color: rgb(102, 102, 0);">);</span></div><div><span class="pun" style="color: rgb(102, 102, 0);">}</span></div><p style="margin-top: 0px; margin-bottom: 10px; padding-top: 0px; padding-bottom: 0px;"></p>
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