Android :: NotifyDataSetChanged Doesn't Update Screen

Apr 26, 2010

I've a question about ListActivity & ListView & CursorAdpater. The problem is that my listview isn't updating when I call notifyDataSetChanged method from adapter, after I delete an item from database.

Android :: notifyDataSetChanged doesn't update screen


Android :: NotifyDataSetChanged() Doesn't Update ListView

Aug 30, 2010

CODE:........

My array clearly has been updated, and I can see the change when my app starts, but why doesn't it update in this method? The code enters this method.

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Android :: NotifyDataSetChanged Doesn't Work?

Sep 8, 2010

I write following application:

There is an AutoCompleteTextView field as Adapter I'm using ArrayAdapter with ListArray the ListArray consists of some constant string item and one item, which will be changed dynamically everytime user typed something in the field

I took TextChangedListener to update this last list item. But it seems, that update occurs only once.

I add a bit code of me. May be somebody can show me, what did i do wrong.

CODE:.................

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Android :: Calling NotifyDataSetChanged Doesn't Fire OnContentChanged Event Of SimpleCursorAdapter

May 18, 2010

I have this scenario

onResume of an activity:

CODE:............

Adapter has been defined as:

CODE:.............

And the onContentChanged event is not fired, although the onResume and the call to the adapter is issued.

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Android : App Update Notification - Doesn't Show Which App Has An Update

Jan 8, 2010

Just got a new Android phone, my second after a brief stint with the G1 a year or so ago..

Today I noticed that I received notifications that I have apps with updates available. When I click on the notification it takes me to my downloads in the Marketplace, but it doesn't show me which app has an update. They all just say Installed.

Is there no way to tell what application needs updating?

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Android :: NotifyDataSetChanged Example

Sep 8, 2010

I'm trying to use in my Android Application the notifyDataSetChanged method for an ArrayAdapter but it doesnt't work for me.

I found as answer here, that notifyDataSetChanged should run in the main thread, but there was no example for that.

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Android :: Expandablelistview Can Not Use NotifyDataSetChanged()?

Oct 20, 2010

I want to refresh my expandablelistview, but it seems there is no way to use notifyDataSetChanged()? how can i refresh my expandablelistview?

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Android :: Bug With NotifyDataSetChanged() In ArrayAdapter ?

Jun 16, 2010

I have a strange problem with one of my ListActivity. I have overrided the default ArrayAdapter in order to customize my list. I have then filled the adapter with an ArrayList.

If I insert an element on the list and then call notifyDataSetChanged() on the adapter everything works fine.

But if I insert an element at the END of the list and then call notifyDataSetChanged(), the new element doesn't appear ...

And finally if I override getCount() on my adapter like this :

CODE:...............

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Android :: NotifyDataSetChanged Not Working As Expected

Jan 25, 2010

The problem is that notifyDataSetChanged() is not firing up getView() of listView class.

I have an activity class in which i have Gallery Adapter and custom List Adapter (extending base class and overriding getView). What i want is, if i select any picture from gallery then, the list should get updated (dont worry about the data source now, as i am using static images for gallery and static string array for listview). After getting onClickevent from gallery i am calling notifyDataSetChanged via listView Adapter Context so that getView of listView should be called and i can supply another static string array to change the list, but getView of listView is not being called.

If i call notifyDataSetChanged from onClickEvent of listview, then getView of listView is being called. How shall we use notifyDatasetChanged to update the listview using event from another adapter.

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Android :: Difference Between NotifyDataSetChanged() And NotifyDataSetInvalidated() ?

Aug 4, 2010

I have a doubt that what is the difference between adapter.notifyDataSetChanged(); adapter.notifyDataSetInvalidated();

Because when i used both one by one, both worked exactly same. Please let me know what is the exact difference between these two.

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Android :: Adapters NotifyDataSetChanged Does Not Work

Oct 18, 2010

I have a list view which I'm trying to refresh to update it self when i add an element to the underlying array list.

Here is the code snippet:

CODE:.....

The arrlEvents is the underlying arraylist with the events, and im adding one event, trying to update the list view with notifyDataSetChanged(), but it doesnt work.

Here is the source code for the adapter:

CODE:...............

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Android :: Calling NotifyDataSetChanged() Throws Exception

Oct 7, 2010

I have a ListView that I'm binding to an adapter. The adapter is a protected member of my main class. I have a listener thread that receives data and updates the source list for my adapter. When I call the adapter's notifyDataSetChanged() method, an exception is thrown:

Runtime Exception: PhoneLayoutInflater(LayoutInflater).inflate(int, ViewGroup, boolean) line: 322

I've read that the notifyDataSetChanged() method has to be called on the UI thread, and I'm doing that. In fact, just to be sure, I even update the ListView's data source on the UI thread. All I do in my listener thread is update a protected member that houses the data. Here's an example of what I'm doing (note that I don't have the part of the code that calls the AsyncTask, but it's fired from a listener):

CODE:............

Does anyone have any pointers or ideas as to why I'm getting this exception? Any help is much appreciated.

Here are the layout files, as requested:

main.xml:

CODE:....................

row.xml:

CODE:...............................

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Android :: How To Call NotifyDataSetChanged() From A Generic Adapter

May 19, 2010

An OnItemClickListener for a ListView has the following method:

CODE:.......

I'd like to have the adapter behind the ListView refresh, and I believe this is done through the use of:

CODE:.........

How do I use the parent parameter in the onItemClick method to do this? So far I've tried:

CODE:.................

This throws an error because the object returned is of class HeaderViewListAdapter, which for reasons unknown isn't a subclass of BaseAdapter.

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Android :: ListView Not Getting Updated On Calling NotifyDataSetChanged()

May 26, 2010

I've created a custom listview which looks the twitter timeline and contains posts. The following function gets a list of posts from server, parses them and adds them to the list used to populate the listview.

CODE:.....

After calling this function, the list adapter was notified of change in data set by calling

CODE:...............

in the main thread. But the listview doesn't updated. For trail purpose I added a button on top of list view and called the populateTimeline() again and then notifyDataSetChanged() when the button was clicked. Surprisingly all the posts pop up in the ListView this time. What should be done so as to update the listview without the button click?

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Android :: IllegalStateException When Adapter.notifyDataSetChanged() Is Called

May 27, 2010

I have a very simple application. There is a refresh button, everytime it is being clicked, the adapter will call notifyDataSetChanged() to update a ListView. However, I got IllegalStateException all the time.

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Motorola Droid :: Screen Stays On. Screen Doesn't Timeout

Jan 26, 2010

I posted this in the Support and Troubleshooting forum but didn't get any replies, so I thought I'd post it in the main forum.Hopefully some of you guys/gals/aliens (illegal or not, I don't mind) can help me out with this one.

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Android :: Custom Widget Doesn't Update

May 11, 2010

I'm trying to make a widget to my app, but it doesnt update.I just need to change the textview text and open an activity when a press a button, but none of them works

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Android :: Update Doesn't Work When Using Content Resolver?

Mar 5, 2010

I have this code for update:
public Boolean update() {
try {data.put(Contacts Contract.Groups.SHOULD_SYNC, true);
Content Resolver cr = ctx.get Content Resolver();
Uri uri = Content Uris.with Appended Id(Contacts Contract.Groups.CONTENT_URI, Long.parse Long(get Id()));
int mid = cr.update(uri, data,_ID+"="+get Id(), null);
// notify registered observers that a row was updated
ctx.get Content Resolver().notify Change(
Contacts Contract.Groups.CONTENT_URI, null);
if (-1 == mid)
return false;
return true;
} catch (Exception e) {
Log.v(TAG(), e.get Message(), e);
return false.

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Android :: Update Item Position On Map Doesn't Work?

Nov 18, 2010

i have an android app, with a actitity, that shows a map, with a position. This possition is updated on sharedPreferences with a service... ok, that works fine. I need that my activity implements runnable to be a thread that read's the position of sharedPreferences each 1000ms and then update the item position on the map... but it doesn't works. As i saw in debug mode, my thread doesn't work fine, ONLY ENTER ONE TIME on RUN() method... i mean that never enters into RUN() method again, only one time, cause this, the positions doesn't be updated on the map. What is wrong? why this thread doesn't work fine?

public class Locate extends MapActivity{

private TextView userText = null;
private TextView permissionText = null;
private TextView lastUpdateText = null;
private Button locateButton = null;.............

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Android :: UI Doesn't Update Using Stitch In_Time Example For PostDelayed And Handler

Sep 21, 2010

I have looked at every discussion and thread I can find on getting this to work but it is not. I have a simple timer that updates a text view (mTimeTextField in the example below). The mUpdateTimeTask run method is being executed correctly (every second) but the UI/text field is not being updated.

Here is the code:.........................

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Android :: Android - NotifyDataSetChanged() Not Updating Listview After Orientation Change

Jun 21, 2010

On a click event I create a thread and start a long-running operation based on this method. After the long-running task is completed, it does a callback to another method, which does a post to the handler:

@Override
public void contentSearchModelChanged(Model_ContentSearch csm, ArrayList<Class_Reminder> newRemindersList) {
remindersList = newRemindersList;
mHandler.post(mUpdateDisplayRunnable);
}...........

This works beautifully when I do this normally. However, if I change the orientation while the long-running operation is running, it doesn't work. It does make the callback properly, and the remindersList does have items in it. But when it gets to this line:

r_adapter.notifyDataSetChanged();

Nothing happens. The odd thing is, if I do another submit and have it run the whole process again (without changing orientation), it actually updates the view twice, once for the previous submit and again for the next. So the view updates once with the results of the first submit, then again with the results of the second submit a second later. So the adapater DID get the data, it just isn't refreshing the view. I know this has something to do with the orientation change, but I can't for the life of me figure out why. can anyone suggest an alternative method of handling threads with orientation changes?

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Android :: After Changing A Preference - A Setting - Text Showing Settings Doesn't Update

Apr 13, 2010

I will try to explain a simple app scenario: My app goes right to a 'main view'. In this main view I have inserted a 'TextView' which displays current settings created by way of the PreferenceManager. For simplicities sake, let's say I have a checkbox in my settings. When I first start my app - the TextView on my main view shows my checkbox setting correctly (true). Now I go to the settings menu, it pops-up, and then I change it to false. I go back to the main view and...no change. It still say's true even after I changed it to false. If I end the app and then re-start it - all is well and it shows my change.

Apparently the main view just stays in the background while I'm changing settings? How can I redraw or update the main view after I change settings?

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HTC EVO 4G :: Google Latitude Doesn't Update

Aug 1, 2010

Ever since the last couple of Google Maps updates my Latitude no longer updates on its own. All settings are set correctly to autodate and use GPS but no go. Only updates when I open Latitude manually.

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HTC 4G :: After Froyo Update EVO Doesn't Sleep

Aug 5, 2010

I have become accustomed to checking my "Up time" and "Awake time" when checking my battery level. I have noticed that since I updated to 2.2 that the awake time runs continuously and I cannot figure out why. I am guessing that it reset some option when I updated, but I dont know which one. The battery will usually last from 8am until at least midnight, so its not a huge problem but if I can stop it and lower the Awake time and have it last longer I would like to do that. Right now I am at about 70% battery level with 5:54 Up and 4:16 Awake. Has anyone else experienced this or know that the issue might be?

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HTC Droid Eris :: GPS Doesn't Work Since Update

May 16, 2010

Now that I've updated to 2.1, most of the apps (weather and time apps) no longer work correctly.I live in Panama City Beach but these apps continue to tell me I am slightly north of Tallahassee over 100 miles away and in a different time zone. Stays the same regardless of GPS on or off,I have deleted and re-installed all of the offending programs and that didn't help either.Everything was great prior to the update.

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HTC Hero :: Doesn't Appear After Update On Google Calendar

Oct 6, 2009

When I update something on Google Calender, it appears fine on my phone. However, when I update on my phone calender, it doesn't appear on my google calender.

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HTC Hero :: Email Widget Doesn't Update Itself

Jan 28, 2010

It was still working find few days back. Still get email notificantions every 15mins like how i set. But i just realized it dosent work anymore. Had to refresh it manually to get the new emails.

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Motorola Droid :: Who Has Lagging After Update Who Doesn't

Dec 10, 2009

just a poll out of curiosity to see who's experiencing this problem

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HTC Droid Eris :: MR2 Update GPS Doesn't Work

Jan 11, 2010

I did the manual MR2 upload now my GPS doesnt work any one else having that problem?

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Android :: MapView Doesn't Take Up Full Screen

Aug 10, 2010

I hate to bother you all again, as this is probably me, a newbie, making some big blunder, but I'm baffled as to why my mapview only takes up a fraction of the screen. I've been following tutorials.

My layout:


CODE:.................

The specified screen resolution is, as in the droid, 854x480. It shows up in the emulator in horizontal mode (wide, not very tall). The map starts about a third of the way from the left and ends about a third of the way from the right. It starts at the top and ends about a third of the way from the bottom of the screen. I have no clue why that would happen, as I specified "fill_parent".

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