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我是Android开发的新手，我尝试使用服务和intentservice获得一些练习。服务和intentservice之间的沟通
这是我的服务类：
public class MyBaseService extends Service {
private double[] returnData;
public MyBaseService() {
}
@Override
public void onCreate() {
returnData = new double[//dataSise];
}
/** The service is starting, due to a call to startService() */
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
try {
for (Map.Entry<Integer, Double[]> mapEntry : dataMap.entrySet()) {
doXYZ(mapEntry.getValue());
Arrays.sort(returnData);
}
} catch (IOException e) {
e.printStackTrace();
}
Intent intents = new Intent();
intents.setAction(ACTION_SEND_TO_ACTIVITY);
sendBroadcast(intents);
return START_STICKY;
}
/** A client is binding to the service with bindService() */
@Override
public IBinder onBind(Intent arg0) {
return mBinder;
}
public class MyBinder extends Binder {
public MyBaseService getService() {
return MyBaseService.this;
}
}
/** Called when a client is binding to the service with bindService()*/
@Override
public void onRebind(Intent intent) {
}
/** Called when The service is no longer used and is being destroyed */
@Override
public void onDestroy() {
super.onDestroy();
}
private void doXYZ(double[] data) {
int gallerySize = galleryFiles.length;
for (int i=0; i<data.length; ++i) {
Intent cfIntent = new Intent(this, MyIntentService.class);
compareFeatureIntent.putExtra(MyIntentService.COMPARING_INDEX, i);
startService(cfIntent);
}
}
BroadcastReceiver mReceiver;
// use this as an inner class like here or as a top-level class
public class MyReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
int index = intent.getIntExtra(MyIntentService.COMPARING_INDEX, 0);
double scores = intent.getDoubleArrayExtra(MyIntentService.COMPARING_SCORE);
data[index] = scores[0];
}
// constructor
public MyReceiver(){
}
}
}
这是intentservice类：
public class MyIntentService extends IntentService {
protected static final String ACTION_COMPARE_FEATURES = "CompareFeatures";
protected static final String COMPARING_SCORE = "Score";
protected static final String COMPARING_INDEX = "Index";
public MyIntentService() {
super("MyIntentService");
}
@Override
protected void onHandleIntent(Intent intent) {
int index = (int)intent.getLongExtra(COMPARING_INDEX, 0);
// This is long operation
double[] scores = getScores(index);
Intent intents = new Intent();
intents.setAction(ACTION_COMPARE_FEATURES);
intent.putExtra(COMPARING_SCORE, scores);
intent.putExtra(COMPARING_INDEX, index);
sendBroadcast(intents);
}
}
的情况是，我要开始MyBaseService类主要活动内部。在MyBaseService里面，我需要做一个长时间运行的操作，并且需要多次迭代该操作。所以，我把这个长操作放在MyIntentService中，然后在一个循环中启动MyIntentService。
MyIntentService会产生一些数据，我想在MyBaseService类中获取这些数据来做一些进一步的操作。
问题我正面临与MyBaseService和MyIntentService之间的通信。因为MyBaseService会多次启动MyIntentSerice，所以我最初的解决方案是从MyIntentService中sendBroadcast（），并在MyBaseService中注册接收者。
所以，我的问题是：
是我与MyBaseService MyIntentService设计效率？如果不是，我应该如何将我想要的结果归档？
如果sendBroadcast（）是一个正确的方向，我应该如何在MyBaseService中注册？