android-asynctask

问题 I am developing a socket based app. I need to get the data from the Server socket and display to listview for every second. I an sending the broadcast event from my service using Alarm Manager like this... @Override public int onStartCommand(Intent intent, int flags, int startId) { fireAlarm(); return START_NOT_STICKY; } public void fireAlarm() { /** * call broadcost reciver for AlarmReceiver */ //Intent intent = new Intent(AlarmService.this.getApplicationContext(), DefaultMarketWatch.class);

问题 Hi there i have an Asynctask that wroks only problem is the screen is blank until everything has loaded so i have created a loadingcell view but i'm wanting to know how to have it show the loading view until everything is loaded. here what i have tried but it doesn't work public class PostTask extends AsyncTask<Void, String, Boolean> { @Override protected Boolean doInBackground(Void... params) { boolean result = false; loadFixtures(); publishProgress("progress"); loadResultsFeed();

问题 I'm having some troubles with correct identification of items in a ListView . There are 4 classes that matter, it's a lot of code so at first I'm going to explain the logic of those classes. Enter the ListActivity and initialize its ListView execute an AsyncTask that downloads JSON response from the server, parses it, populates the ListView with Objects and sets the adapter while showing a ProgressDialog the PlaylistItem class includes methods which simply get the data from a single

问题 I am working on a Chat Application . For this I am using Quickblox SDk . I have done with text chat till now . Now I am trying to send image in chat . For this , first I select image from SD Card then on image selection it uploads to quickblox server successfully ,then using QBFile reference I get image id and try to show it in chat window . Here is the reference code . private void sendChatMessage(String messageText, InputStream imageStream) { final QBChatMessage chatMessage = new

问题 I am getting some data from the net, which gets parsed with JSoup in a AsyncTask. I am having trouble filling the listview correctly. Edit1 only gets filled with empty fields (..) and the last rows have the value € 0,00. Edit2 does not get filled at all. .. edit2Text .. edit2Text .. edit2Text € 0,00 edit2Text € 0,00 edit2Text Both Edits are in a test.xml: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill

问题 I have a synchronism logic makes sendOrder from db in android to server by web service which runs on doInBackgroud() . first I start app. then click SyncClick and It Sync database without error. after that I go into application add someorder to orderTable return to main screen(which has SyncClick) and I click SyncClick again. It sends order (which means sendOrder() function works well) after that reset database and get latest data on doInBackgroud() . but It getting this error; 07-11 23:38:15

问题 I'm designing a news app where I need to download fresh articles and their detailed stories whenever user opens my app. I'm doing all of this a background thread. My prime focus was that the background thread should stop as soon as user exits the app so as to prevent user for incurring extra download charges. To achieve this, I initiate background download in my splash screen and I keep on checking for flag variable that lets the background process know if the app is still running. Now my

问题 I am new to Android programming, and have one question. I am trying to access findViewById in my AsyncTask, but obviously, by default this will not be available, because I am not performing any actions against a View object. I have found, a few articles, explaining how to solve this, but they are old, 5 years and up, and would like to know if this is still the correct approach? I am using android's data binding methodology, and this is supposed to replace findViewById calls, but I don't see

问题 I'm using Fragment to Display the Movies name, poster and reviews and Trailer using API key. I am trying to add progressbar such that when the RecyclerView is loading it will display the progress bar and when loading is complete..it will become invisible. I tried to put various method but it always gives me error or app compiles and run but crashes. Below is my MoviesUtil class file public class MoviesUtil { private static final Webb WEBB = Webb.create(); private static final String TMDB_API

问题 In my activity I am setting all the Views like ImageView, TextViews with theirs respective data using AsyncTask. after asyncTask.Execute(); I have a textView.onCLickListener which calls Camera and after the picture is taken, the ImageView in the activity is set to this pic. But the problem is my asyncTask is called again after the onActivityResult(); Here is my complete Activity code: public class UserProfileActivity extends Activity { //many instance fiels here @Override protected void