android-intentservice

问题 I have a background operation that I'd like to be able to run in two modes: UI mode , which is launched by the user and provides the user precise feedback on the state of the operation throughout its life cycle. non-UI mode , which is launched by AlarmManager and provides the user with a summary of the operation at the end of its life cycle. The natural design choice to achieve only UI mode would be AsyncTask and the natural design choice to achieve only non-UI mode would be IntentService .

问题 my application collects periodically Activity Recognition's Detected activity data. I implemented it exactly as described in the documentation , but with one minute interval. as long as the user is logged in - the application registered with a PendingIntent to receive updates from google play process.. please not lecture me about battery usage, network, and performance problem derived from request updates each minute, unless it have something to do with my problem: the problem: in some

问题 i have an activity ("ApplicationActivity") that call an intent service ("DownloadService") The intentService download files from internet in background, but i want to be able to abort a specific download......... So let's say that i put 5 files in queue: file 1,2,3,4,5 The intent service start downloading the number 1, then the second and so on.... 1) Is there a way to say to the intent service abort what you are doing at the moment in the method handle event (in this case downloading file 1)

问题 I want to create a service similar to this one, (reference from Here), to download multiple files asynchronously in Android. public static class DownloadingService extends IntentService { public static String PROGRESS_UPDATE_ACTION = DownloadingService.class .getName() + ".newDownloadTask"; private ExecutorService mExec; private CompletionService<NoResultType> mEcs; private LocalBroadcastManager mBroadcastManager; private List<DownloadTask> mTasks; public DownloadingService() { super(

问题 I am stuck with the problem of Activity + Service in that I have following number of Activities and Services. Activities: LoginActivity => OrderListActivity => AddOrderActivity => ConfirmOrderActivity Services: ReceivingOrderService - Receiving New Data From Server SendingOrderService - Sending new Data to Server Above both Service Calling from another Separate Service on duration of some interval . CheckAutoSyncReceivingOrder - To call ReceivingOrderService (Interval 15Mins)

问题 I have an IntentService that queues up web service calls that need to be made to my web server. So each Intent is a web service call to be made. I'd like to set something up where my application can ask this IntentService if it has any Intents containing a particular piece of data (IE: "Are you already waiting to ask the cloud for x data? Or do I need to tell you to do it?"). Are there any suggestions on how I might extend IntentService to do this? Can the Intent queue of an IntentService be

问题 This question already has answers here : Service vs IntentService (11 answers) Closed 3 years ago . Can you please help me understand what the difference between an IntentService and a Service is? 回答1: In short, a Service is a broader implementation for the developer to set up background operations, while an IntentService is useful for "fire and forget" operations, taking care of background Thread creation and cleanup. From the docs: Service A Service is an application component representing

问题 I want to create a service which will run on a separate thread (not on UI Thread), so I implemented a class which will extend IntentService. But I haven't got any luck. Here is the code. public class MyService extends IntentService { public MyService(String name) { super(name); // TODO Auto-generated constructor stub } @Override public IBinder onBind(Intent arg0) { // TODO Auto-generated method stub return null; } @Override public void onCreate() { // TODO Auto-generated method stub super

问题 I am unable to scrape heading from a web page using intents in Android . For the time being, I just want to extract heading text (h1 tag text) from a URL. I wrote a piece of code for extracting heading text in onHandleIntent(Intent intent) but I think I am doing something wrong. My basic purpose is to write a webcrawler on Android. Can someone help me? Here is my code MainActivity.java class package com.example.awais.check2; import android.app.Activity; import android.content

问题 I am using GoogleCientApi object to fetch location updates and other Accelerometer sensors and send it to server every 5 sec . I want it to run in background endlessly i.e. 24*7 with battery optimisation. Nothing needs to be updated in UI . Please suggest whether to use Service or IntentService ? If using Service how to run it using Handler ? Any suggestion or article link will be helpful. 回答1: If you want to achieve this using service public class MyService extends Service { @Nullable