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?

Android :: Android - notifyDataSetChanged() not updating listview after orientation change


Android : Want To Reload Data In ListView When Change Orientation

Nov 17, 2010

I have a listview that Display some Categories on it from my server, it works fine but when i change Orientation it Reload it...

What Should i do to Avoid Reload ?

View 1 Replies View Related

Android :: Perserve The Data In Arrayadapter/listview When Change Orientation?

Feb 26, 2010

As above, is it done automatically? My list was empty once the orientation chMYanges? and nope, i need the orientation change.

My adapter

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

My onCreate

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

View 3 Replies View Related

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?

View 2 Replies View Related

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.

View 1 Replies View Related

Android :: Orientation Change - Dialog Above Activity With Fixed Orientation

May 14, 2009

I have created an activity for my game which handles all orientation changes by itself and has a fixed "portrait" layout. Actually it uses the accelerometer and is rendered using 2D canvas methods. If the level has been completed I show up a highscore dialog in which the user can enter his name. The dialog is floating above the underlying level screen which gets blurred out nicely. This generally works.

Problem is that the dialog does not get rotated if the orientation of the phone changes. So even if the keyboard is exposed the dialog is shown in portrait mode instead of landscape. I have tried to use an activity with dialog theme instead but the behavior didn't change. After several tries it seems that I have found the reason for this: Once there's an activity with fixed orientation in the activity stack then all subsequent activities keep this orientation, too. They will not react on orientation changes anymore (e.g. if the keyboard gets exposed).

After upgrading to 1.5 SDK the described behavior changed a little bit. Now at subactivities indead react on orientation changes like expected. However, the need to have an opaque background! That means that neither dialogs nor activities with dialog theme will work. Those will stick with the orientation of the underlaying activity. So my workaround is to first start a sub-activity with an opaque black background. This activity then shows my highscore dialog on top. It looks quite okay but I wonder if there's a better solution? Is it possible to show a dialog above a fixed portrait or landscape activity which automatically adapts to orientation changes?

View 3 Replies View Related

Android :: Change Intent Bundle Data Before Activity Recreated After Orientation Change

Jul 30, 2009

I have a notification that starts my activity and passes a messages using the intent's putExtra() function. The message is then displayed to the user in the activity's onCreate function. When the application is restarted due to a orientation change, the message is shown again as it is still in the intent's bundled data.
How can I remove the extra data?

I tried the following:

Bundle bundle = getIntent().getExtras();
if (bundle.getBoolean("showMessage")) {
// ... show message that is in bundle.getString("message")
// remove message
bundle.remove("showMessage");
}

But the message will still be shown after the orientation changed, seems like the intent used is not the one I changed, but the original one. The only workaround I found is to save the showMessage additionally in onSaveInstanceState(). Is there another way? Or is this the way to go?

View 2 Replies View Related

Android :: Change Widget Dimensions On Orientation Change

Jul 22, 2010

I have a widget which has say, a dimension of 294*72(portrait). But when the orientation is changed, I need to change this dimension of the widget to another dimension which would look good on the landscape orientation.

View 4 Replies View Related

Android :: ListView In Activity Getting Refreshed On Changing Orientation

Apr 7, 2010

I have Activity with ListView inside it and in the onCreate method of the Activity I have code for populating the Data of the ListView this Data is a server based and so populating includes calling Network URLs. I have the ArrayAdapter of the ListView in the Same Activity Class.

Now the Issue I'am facing is that, in Rest all scenarios my Activity is behaving in a proper way but when the Orientation [ Portrait to Landscaped or other way round] is taking place the Data is Getting lost and Newer Data calls are Required to Populate the Same Old Data now this is something that is not intended out the code how should I deal with it.

View 4 Replies View Related

Android :: ListView Not Updating After Filtering

Aug 5, 2010

I have a ListView (with setTextFilterEnabled(true)) and a custom adapter (extends ArrayAdapter) which I update from the main UI thread whenever a new item is added/inserted. Everything works fine at first--new items show up in the list immediately. However this stops the moment I try to filter the list.Filtering works, but I do it once and all of my succeeding attempts to modify the contents of the list (add, remove) don't display anymore. I used the Log to see if the adapter's list data gets updated properly, and it does, but it's no longer in sync with the ListView shown.

View 2 Replies View Related

Android :: Change Background After Orientation Change

Jun 8, 2010

I have an image set as my background and when it is vertical, the image looks fine. However, when the orentation is changed, the image get streched out. If there a way that I can change the image based on the orentation of the device?

View 4 Replies View Related

Android :: Way To Change ListView Style Droid Without Building Custom Listview ?

Jun 26, 2010

I would like to change text and back ground color of my Listview without building custom rows. Is this possible ?

View 1 Replies View Related

Android :: Updating Single ListView Element?

Mar 29, 2010

In the application I am working on now I came up with the following problem. I have list view which is displaying items with images in most cases it will be different image for different items (thumbnails about 60x60 pixels). So the problem is how can I handle image processing for the view. For know I have the following variants:

1. I can cache all bitmaps and when I try to display view I get bitmap from cache synchronously and display it. The problem is that 60x60=3600x4=14kb per bitmap which is waste of resources.

2. When I need to display view I can register event to some thread to decode the associated bitmap which will decode it in background and than to update gui. This sounds good for me the scrolling is still smooth because all image processing is done in background. Updating list view is bit jerky for now I am doing it view notifyDataSetChanged which is updating all visible views although I can update thumbnail for a single item.

So question one is is there better way the update single listview element than calling notifyDataSetChanged.

View 2 Replies View Related

Android :: Orientation Specific Failure In ListView.layoutChildren - Exception ArrayIndexOutofBoundsException

Sep 20, 2010

I am a very green android developer and need some help with a strange program crash. Often the program will run just fine. There is an equal chance it will fail (see stack at the end). I can watch the program run through the getView function and everything seems in order (i.e. all the information is there as expected and passes through convertView seemingly fine). Either it will go through a few times and then program will be A-OK or it will fail as seen below and I have not been able to pick out what causes the crash. Even stranger is that if I hold the phone in landscape mode, it will never fail!! It only fails about 50% of the time in portrait orientation.

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

-----------------------Failure----------------------------------------------

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

View 1 Replies View Related

Android :: Change Orientation Of AlertDialog

Mar 25, 2009

I am building a AlertDialog in java code, so by default it is portrait but I want to show it in landscape orientation. How to do it in Java code?

View 2 Replies View Related

Android :: Screen Orientation Change

Oct 8, 2009

I notice when using the emulator that when the screen is flipped, I get a following logcat message:

INFO/WindowManager(589): onOrientationChanged, rotation changed to 1

How can I catch this in the code? I want to know whenever the orientation changes. I assume I have to set a listener, but I can't find an example anywhere.

View 6 Replies View Related

Android :: Dialogs On A Change Orientation

Mar 5, 2010

I'm doing an APP that shows some dialogs. Those dialogs are Alert dialogs, and when they are being showed if I change the orientation of the mobile I lost them...they are not being kept on the screen.

View 13 Replies View Related

Android :: Views - Orientation Change

Oct 1, 2009

Do Views know changes in orientation? In my case, I create popups from TextView and need to know when the orientation changes(porttrait<-- >landscape). I cannot depend on activity's onOrientationChange.

View 2 Replies View Related

Android :: Keep Screen On And Change Orientation

Feb 11, 2009

I am making an Android app which is currently coming along nicely - I've hit upon a couple of stumbling blocks.

1) How do I stop the screen from going dim/off and the phone locking while the application is running?

2) Can I force the phone to enter landscape mode on running my application?

View 2 Replies View Related

Android :: Possible Leak In Orientation Change

Jul 1, 2009

My app *sometimes* when orientation change, leaks Activities (getInstanceCount() increases from time to time) and i cannot figure out where references to my Activity or rather Context are kept - tried to use jhat but it couldn't help me much.

what is strange: it doesn't always happen on orientation change, so its even harder to fix.

btw when doing normal app life cycle - start, do something, exit - everything is ok - getInstanceCount() always returns 1.

View 5 Replies View Related

Android :: OnCreate And Orientation Change

Apr 28, 2010

I have an activity that checks stuffs online when it's created (is the GPS on and if not it asks if the user wants to turn it on).

The problem I'm having is that it is also doing it everytime I change the orientation of the screen.

I've read some comments on onConfigurationChanged() but is there a better way to be sure I'm checking the GPS only when the activity is first created?

View 4 Replies View Related

Android :: Dialog Is Leaked On Orientation Change

Jun 23, 2010

built a simple app that displays an alertDialog with two buttons.The problem is it's not getting dismissed when i change orientation. After change i get a leak warning on debugger and the dialog appears twice(pressing back hides the first dialog, only a second back dismisses it completely).

View 7 Replies View Related

Android :: Change Eclipse Layout Orientation

Nov 6, 2010

I want to know how to change the orientation of my layout inside of eclipse but when I click the "layout" button it still shows it as a vertical layout.

View 4 Replies View Related

Android :: How To Change Eclipse Layout Orientation?

Nov 6, 2010

I want to know how to change the orientation of my layout inside of eclipse.

View 1 Replies View Related

Android :: Orientation Change Crashes When Ids Not Unique

Mar 17, 2009

consider the simple layout:

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

View 9 Replies View Related

Android :: AppWidget Update On Orientation Change

Dec 29, 2009

I am developing a photo frame widget, all works except on an orientation change to landscape mode my appwidget doesn't display correctly as I have it set to portrait dimensions and it is too large for the display. I would like to run some code to resize the image so that everything displays correctly and it uses all the space that I allot. What is the correct way to do this? I can think of 2 methods however both seem inefficient. The first would be to register a broadcast reciever to take orientation changes, however I don't want to redo my appwidget everytime the phone is turned on its side as the majority of the time the homescreen is not showing when the orientation is changed (ie other apps are used, and I don't need my code running in the background). I only need it to run when the home screen is shown. The second would be to setup a service to manage my appwidget but that also seems inefficient to be always running in the background.

View 10 Replies View Related

Android :: Orientation Change Runtime Option

Apr 24, 2009

Is it possible to have a user choose how an app should respond to orientation changes? I have it set to android:screenOrientation="sensor" in the manifest but I would like users to be able to turn this on and off or set landscape or portrait orientation permanently.

View 5 Replies View Related

Android :: Application Restarts On Orientation Change

Nov 2, 2010

When I change orientation application restarts and I lost my current data.. I am using activity group which contain lots of activities when i change orientation application restarts from main activity. is it possible to avoid this application restart on orientation change?

View 4 Replies View Related

Android :: Orientation Change Handling On Widgets

May 31, 2009

Some of the content in my widget is based on custom drawing routines. is there any event i can listen for so i redraw and update this custom area when the orientation changes? currently my widget looks pretty screwed until the next widget update is requested.

View 3 Replies View Related

Android :: Prevent Orientation Change At Runtime

Apr 15, 2010

Well, preventing an orientation change is easy. But what about doing it at run time.

Say, I have an activity which supports orientation change in normal situations. It has say three Edit Texts.

There's also a button, which when clicked would do some processing in a thread while showing a ProgressDialog which is not cancellable.

Ok, so till the user hits the Button, I want the activity to be able to adapt the orientation changes. I have two layouts files for each orientation with different layout schemes.

What I want is this. Once the user clicks on the button, and the ProgressDialog is showing, I don't want the activity now to be re- created again when the orientation changes. So, before showing the ProgressDialog, is there any way to tell the Activity not to handle Orientation change?

Also, once the process is complete, and the ProgressDialog is removed, I want the Activity again to be able to handle orientation changes.

View 6 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved