Android :: How To Refresh Adapter?

Sep 12, 2009

I am developing file browser to my media player UI i have written in my OnItemClickListener() in that i called the method like adapter.notifyDataSetInvalidated() method but it is not working please help me to refresh my list.based on onItemClickListener() method.

Android :: How to refresh adapter?

Android :: How To Refresh Updated Contacts In List View Using Base Adapter?

Jul 23, 2009

Currently I am working on IM, and I am facing problem during implementations. I am implementing this messenger using XMPP client and using smack API for implementing all features like contacts list, online offline status, and chat also. Prblem which I am facing:

Its my list view where I am showing contacts list
public class ContactsList extends ListActivity implements OnClickListener{
@Override protected void onCreate(Bundle savedInstanceState) {
ContactsManager manager = new ContactsManager(this); setListAdapter(manager);
} public class ContactsManager extends BaseAdapter{
private LayoutInflater mInflater; private Bitmap mainListIcons[];
private static ContactsInfo contactsInfo; public ContactsManager(Context context) {
mInflater = LayoutInflater.from(context); mainListIcons= new Bitmap[3];
mainListIcons[0] = BitmapFactory.decodeResource (context.getResources(),;
mainListIcons[1] = BitmapFactory.decodeResource (context.getResources(), R.drawable.offline);
} @Override public int getCount() { return Global.contacts.size();//
contacts is vector where I am saving my contacts
} public Object getItem(int position) { return position;
} public long getItemId(int position) { return position;
} public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder; if (convertView == null) {
convertView = mInflater.inflate (R.layout.main_settings_lists_icon_text, null);
holder = new ViewHolder(); holder.mainListDisplayText = (TextView) convertView.findViewById(;
holder.mainListDisplayIcon = (ImageView) convertView.findViewById(;
convertView.setTag(holder);}else{ holder = (ViewHolder) convertView.getTag();
} contactsInfo = (ContactsInfo)Global.contacts.elementAt (position);
String username = contactsInfo.getUsername(); String status = contactsInfo.getUserstatus();
if(status.equalsIgnoreCase("unavailable")) { older.mainListDisplayIcon.setImageBitmap(mainListIcons[1]);
}else{ holder.mainListDisplayIcon.setImageBitmap(mainListIcons[0]);
} holder.mainListDisplayText.setText(username); return convertView;
} static class ViewHolder { TextView mainListDisplayText;
ImageView mainListDisplayIcon;}
public class ContactsHandler implements RosterListener {
@Override public void entriesAdded(Collection<String> c) {
for(String s:c) { Log.i("ADDED Contacts",s);
} } @Override public void presenceChanged(Presence p) {
Log.i("PRESENCE",p.getFrom()); Log.i("IS Available",""+p.isAvailable());
Log.i("UserStatus",""+p.getStatus()); if(p.getFrom().contains("@") && p.isAvailable())
{ ChatManager chatmanager = Connection.getVopConnection getXMPPConnection().getChatManager();
Chat newChat = chatmanager.createChat("gulfam@imran-mehmood", new ChatHandler());
} } }

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Android :: Implementing Filterable Cursor Adapter - How To Invoke/refresh Filter

Jun 15, 2010

I've overriden runQueryOnBackgroundThread and done what I've needed to do for the corrent query to be excuted with a given constraint. My current challenge is figuring out how to actually pass in the constraint. I've got an ActivityList which I'd like to filter on a stored preference. I'm thinking I will need to perform a filter during onStart such that the most recent preference changes are picked up. All that is in place, just not clicking on how I'd actually cause the filter to happen!

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Android :: Way To Refresh An Activity / Map View Refresh Fails?

May 3, 2010

After implementing some Android Apps, including several Map activities, I try to refresh the activity when the GPS listener's onLocationChanged() mehtod is called. I have no idea how to tell the map activity to refresh on its own and display the new coords. the coords to store will have to be in global values, so that the location listener will have access to it. In my sample GPS-class (see code below) I just changed the text of a text view....but how to do that in map view?

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Android :: Way To Refresh An Activity?

Jul 22, 2009

What is the way to fresh an activity without calling finish- >startActivity all over again?

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Android :: How To Refresh Sdcard?

May 30, 2010

Is there a way to refesh sdcard without turning off the phone?

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Android :: Way To Get App Drawer To Refresh?

Oct 27, 2010

I've got a bunch of live wallpapers for sale, and have a lot of 1-star comments that just say "Doesn't open". This is because there's no launcher activity, so the open button is greyed out after download. I'm attempting to fix this by including an activity that explains what to do, and I'm trying to avoid useless app clutter by disabling that activity once they've successfully used the wallpaper. This seems to work fine, the problem is the app icon doesn't go away right away. It stays in the app drawer and if you tap it you get a "this has been disabled" message. Eventually it will be removed if the phone is rebooted or if the home app is restarted. I'd like to clean this up. Is there a way to tell Home to refresh this list, or to otherwise tell it to remove the icon from the listing? It seems a bit rude to process kill Home for this purpose, and clearly something like this happens when an app is installed/ uninstalled.

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Android :: How To Refresh ListView?

Feb 16, 2009

I'm facing to one problem with ListView. I would like to refresh the ListView every time I change the base data.

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Android :: Way To Refresh WebView?

Apr 1, 2010

I have looked EVERYWHERE and my little brain just can't understand a better way to refresh an activity. Any suggestions that I can understand would be great.Code...

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Android :: Refresh Layout While Filling It

Jul 8, 2010

I have an activity with a HorizontalScrollView. When it opens, I start filling this view (or rather, a container layout inside it) with another views. This is done from another thread by using

The views are added in bunches of 15, and when there are no more views to add, I start updating them with new data (this is a kind of streaming data from a server).

The problem is that the scrollview is empty until all of the views are added. As soon as they are all added and start updating, the scrollview gets drawn.

How do I refresh it in the process of adding views? I don't want the screen to be empty for 3 seconds while all of the views are added.

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Android :: How To Refresh Screen So Space Gone?

Jun 6, 2010

I would like to make a Linear Layout that was created from xml invisible, and another Linear Layout visible to replace it. The replacement layout starts out as invisible. When I make the originally visible layout invisible, it still leaves space for it on the screen. How can I refresh the screen so that space is gone?

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Android :: Stop Or Refresh An App Activity

Aug 12, 2010

I have a START and STOP button in the main screen of an App. there are some GUI and threads that are instantiated when I click on START. When I click on stop, I want everything to be stopped and the activity should come back to its origin state. To the state that is exactly same like when launched (when we tapped on App icon in mobile).Is it possible to do this? I tried with finish() , this killed the app and exited . I don't want to exit from main screen. rather, on clicking STOP I want app to come back to origin or born state.

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Android :: Refresh StateListDrawable Missing Something

Aug 26, 2010

I have a strange problem with StateListDrawable or maybe (probably) I'm missing something. I created a test application for it and the same problem occurs. So, this is my StateListDrawable resourse in file test_selection.xml

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android=" android"> <item android:state_selected="true"> <shape android:shape="rectangle" android:background="#ff0000"> <corners android:radius="10dp" /> <gradient android:startColor="#ff5555" android:endColor="#ff5555" android:angle="0" /> </shape> </item> <item android:state_selected="false"> <shape android:shape="rectangle" android:background="#eeeeee"> <corners android:radius="10dp" /> <gradient android:startColor="#eeeeee" android:endColor="#eeeeee" android:angle="0" /> </shape>.............................

When Activity starts I try to set the state of my Drawable (the StateListDrawable) with the value SELECTED. It seems all very simple.... but the problem is that the state is not shown. If, later, I click a button and execute the method updateView() the state changes. Where is my problem? Where am I wrong?

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Android :: Refresh View In Application

Sep 9, 2010

I am having a problem trying to refresh a View in an Android application. I have a button that have a image and what I need to do is to change the image when someone clicked the button. Where is the problem? The image don't refresh until the activity finished proccessing the code. Any idea how I can refresh the image as soon as It execute the instruction


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Android :: REST And Listviews Refresh?

Jul 22, 2010

In my app, I have different activities with listviews. The datas come from a server with a REST method, and it's only done once, when I start the application.

The pattern that I'd like to set is to precharge all the listviews with the JSONs that I already have in local, and in parallel, launch a thread that get the new JSONs files with my REST methods, and then update the listviews.

For now, when I start the app, I parse my JSONs files, and build all the lists of objects. I access them later in a static way, from my lists adapters.

So I would like to know the best way to launch this REST thread, and update the listview. Should I use AsyncTask ? A service ? and then, when I update my local JSONs, I have to re-parse them, updates the lists of object, and call in my adapters NotifyDataChanged ?

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Android :: Eclipse - Force Refresh Of IDs?

Jun 7, 2010

I'm using eclipse for Android development, and the editor always seems to take a while to actually update and recognize if I change an ID in a layout, then try to use it in a class with Is there a way to force a refresh?

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Android :: Possible To Refresh Just One Item In A Listview?

Jun 1, 2010

I'm wondering if it is possible to rerender just one element in a listview? I assume by calling notifyDatasetChanged() is gonna rerender the whole list?

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Android :: Use Local Service To Refresh Map UI

May 31, 2010

I don't need a strict code related answer I just need somebody to tell me what I am missing.My application has to retrieve from a web service (xmlrpc) the positions of some users I know and update their position on a MapView.So I decided to use a Service and an Activity extending MapActivity to show results.
I thought about two solutions:

I ) start the service and make it ask every minute for these positions and send them to the activity as a bundle via intent. (This didn't work out well, since once shown I couldn't find a method to let the activity continue refresh itself until she stop receiving intents+data from the service)

II ) Incorporate a thread within the activity which starts the service via context.startService(...) every minute. And the MapUI refresh itself once the service send back an intent and stop itself. (Maybe I will fall in the same problem category as before I haven't tryied yet).

I am also giving directions (via ws) in this way I'd like to refresh only users positions on the map and save the route.What Am I missing do you have any suggestions? related to activities/services internal mechanics, don't know launch modes, use broadcast receivers or intent filters?

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Android :: Need To Add Shake Feature That Will Refresh Application

Feb 23, 2010

I need to add a shake feature that will refresh my Anroid application.All I find of documentation involves implementing the SensorListener, but Eclipse tells me it's deprecated and suggest SensorEventListener. Anybody that has a nice guide to how I go about creating this "shake controller"?

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Android :: Refresh Activities From Broadcast Receiver

May 6, 2010

I'm currntly struggling with an Android problem whose answer is maybe simple.(I'm new in Android developing)I have a main activity that builds a TabHost with two Tabs (each represents another Activity)As far as I know I can't receive broadcast messages within an activity - so the only thing I could do is to start a new activity out of my Broadcast Receiver. But instead I want to change my Tab View or show the alert.Are there any possibilities to access an existing Activity from a broadcast receiver class?

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Android :: Update - Refresh List Problem

May 16, 2009

I have two cursor, one of them from contact content provider, other one from database. id fields are sycnhorinzed.i want to show them in same column with two row in list. i m think that i have to use simpleCursorAdapter, because arrayadapter and other adapters can not show two cursor in a list.


So my list is not refresing/updating altough all cursors all results are updating.

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Android :: Periodically Refresh / Reload Activity

Sep 13, 2010

I have one activity. OnCreate the activity gets the source (html) of a web page to a string and presents the result (after parsing it a bit) in a textview. I would like the activity to reload/refresh periodically to always present the latest information.

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Android :: Refresh Menu Icon Image

Sep 19, 2010

refresh menu icon image, where can i get it it's not here

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Android :: Market Doesn't Refresh Downloads?

Jan 7, 2010

My downloads and installs stopped two days ago, and I don't see any changes on the market (developer console). They never stay the same, so I think, market doesn't refresh them.

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Android :: Way To Refresh Of MapView In An Activity Group?

Mar 24, 2009

I have created map view using XML layout in MapActivity and want to use this map view in another Activity group. I got mapview object in Acitivity group using GetWindow.Decorview(), MAP view is also displayed in the same layout of Activity Group. But without any image, only white background with some grid. Map view is not getting refreshed when i scroll on Map view. But if i launch independently MapActivity , i am able to see the map and it is getting refreshed when i scroll on the map. May I know how can i use and refresh Map view in an activity group? As Mapview can only be created/inflated in MapActivity.

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Android :: How To Programatically Refresh Gallery View?

Sep 17, 2010

I want to programatically refresh Gallery every time I download a video from my application. It doesn't automatically show up in the gallery.

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Android :: ListActivity And SQLiteDB - Can't Refresh List

Oct 29, 2009

What is the best way to display a database queries results on the screen using ListActivity? I need the db queries to run in the background and I also need to be able to make different queries and refresh the screen according to the query result. I am using the ListActivity class with a SimpleCursorAdapter in order to display the db queries result on the screen. At the moment, I am doing the db queries at the background using AsyncTask, when getting the results I want the list to be updated immediately, but I can't find a good way to do it. It worked only when I used the changeCursor(cursor) function to set the adapter to a new cursor with the new results. But I don't think this is a good solution since it seems to stuck the UI for a while. I also found some posts about notifyDataSetChanged() but I am not sure if/how/when I should be using it with a SimpleCursorAdapter to make the view refresh.

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Android :: Pull To Refresh Feature For ListViews?

Nov 19, 2010

The Twitter application for Android has a nice way of refreshing the listview by pulling down and automatically refreshing the data source.

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Android :: Refresh List Of Drawables In Eclipse?

Mar 7, 2010

When I add drawable resources to my project they do not show up in the list of drawables in the Reference Chooser. I checked the R file and there are references for the files.

I have tried refreshing the project, cleaning the project, and fixing project properties and nothing seems to help. Sometimes a couple will randomly show up in there, but not all of them.

The only consistent way I can get them to show up is to restart Eclipse.

Further findings:

After some trials, I found an other inconvenient work around to he issue. Turns out when importing multiple files into the project at once, Eclipse will only add the last one imported into the reference chooser. So when I imported my images one at a time, they all show up properly!

Like I said, inconvenient considering the amount of images I have left to import, but maybe with this new information it may help nail down where the issue may be and a possible fix.

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Android :: Refresh Current Screen Without Creating A New One?

Jan 16, 2010

I have an intent open my phone; when something comes from the server from another Java class I want to refresh the current screen. how I can refresh my current screen without creating a new one?

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