IntentService 继承自 Service，是API里封装好的简单的处理异步请求的service类，在 IntentService 内有一个工作线程来处理耗时操作，这也是为什么intentService不用单独写线程。 当异步任务执行完后，IntentService 会自动停止，不用手动结束。
如果启动 IntentService 多次，那么所有的 耗时操作会以工作队列的方式在 IntentService 的 onHandleIntent 回调方法中被依次去执行，直至自动结束。
<service android:name=".server.SampleService"/>
public class SampleService extends IntentService {
private boolean isRunning;
private int num;
/**
* Creates an IntentService. Invoked by your subclass's constructor.
*
* @param name Used to name the worker thread, important only for debugging.
*/
public SampleService(String name) {
super(name);
}
@Override
public void onCreate() {
super.onCreate();
Log.i("service", "onCreate");
}
@Override
protected void onHandleIntent(@Nullable Intent intent) {
Log.i("service", "onHandleIntent");
try {
Thread.sleep(1000);
Log.d("service", "ThreadName--------" + Thread.currentThread().getId());
isRunning = true;
num = 0;
while (isRunning) {
num++;
if (num >= 10) {
isRunning = false;
}
Log.i("service", "num======================" + num);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
@Override
public void onDestroy() {
super.onDestroy();
Log.i("service", "onDestroy");
}
}
执行结果
