Android :: Adding Iconified Rows To Existing ArrayAdapter
Mar 26, 2010
I am developing an application which requires me to load first twenty rows (consisting on icons and two text fields) and if I have more rows I need to display a button. When i click this button I want to display more twenty rows( again iconified).My current approach which is working is that on the button click I create one more activity which will have the previous rows and the new rows. In this case the cursor is set to the very first row.But I want to have something like Facebooks "Older Post" where the new rows get appended to the old ones and the cursor is set to the last row to which the new rows are added.Please can anyone give me ideas on how to achieve this. That is, how to add rows (iconified) to the existing array adapter.
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May 27, 2009
I want to create a listview with rows that have an image and two textviews. This must be a very common activity but I can't find a class/or source code that does this.
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Jul 15, 2010
I have a ListView that I want to use with an ArrayAdapter to add different styled rows. The rows are created on different states in my application, and depending on the different states the rows should be styled(like colors and stuff). Here is some pseudo-code:
on creation:
mArrayAdapter = new ArrayAdapter(this, R.layout.message);
mView = (ListView) findViewById(R.id.in);
mView.setAdapter(mArrayAdapter);
On different states, which is triggered by another thread using a MessageHandler, add a row to the list containing a message: mArrayAdapter.add("Message");
This works fine, messages are popping up in the list depending on different states, but I want to have the rows styled differently. How to do this? Is the solution to create a custom ArrayAdapter with a custom Add() method?
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Oct 13, 2010
I'm new to android programming and I would like some help. I have the following code:
Object[] list_cities = parsedData.getCityname().toArray();
Object[] list_countries = parsedData.getCountryname().toArray();
// Display the available locations
list_search.setAdapter(new ArrayAdapter<Object>(this, android.R.layout.simple_list_item_2, android.R.id.text1, list_cities));
list_search.setAdapter(new ArrayAdapter<Object>(this, android.R.layout.simple_list_item_2, android.R.id.text2, list_countries));
I would like to display double rows for each entry in the list (city and country) but I have no luck. With the above code I only see the countries but not the cities. Is there any way to add both the adapters to the list_search so I can see all the data?
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Apr 19, 2009
I want to add some views in each row of list view. When I add text view and image view in getView() of ArrayAdapter,it works. But after I add other kind of views (like Check Box and Image Button...), I can't select the list row touching down screen directly, I only can select by key down, up and ok.
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Jun 24, 2010
i am quite new to android and i was wondering how i could go about adding a listview with different images and text. What i am trying to achieve is a listview with four rows which have a different Icon? I don't know how to set that up using the xml layout provided. should i build this using different multiple linear layout or is there a better way to go about it?.. All the examples i have seen all seem to be using one particular Icon and no much detail of the xml layout.
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May 9, 2009
is that possible or should i just throw away my AVD and create a new one with an SD Card?
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Nov 3, 2010
I was so excited when LPP updated a while back and added the option for additional rows and columns....but it didn't resize things the way I wanted. I had hoped it would be tweeked and it seems better now but I'm still having an issue with Beautiful Widgets on the full size Home Weather. It doesn't fit the entire information completely with temp, etc. without pulling it down to fit across about 3 rows...which makes it look huge
Anyone else have this problem? Or should I just accept it and use the smaller Beautiful Home widget? And is there a way to resize the text size under the description of the app? I can remove it and kind of like it without it...but was curious if I'm missing something
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Aug 19, 2010
Droid X - Configured with a Google Apps Premiere, working great. Attempting to add a personal GMail account. Go to the GMail app, select add account, fill in the metrics and then...... "Needs to communicate" message for ~ 3 minutes, then bombs out with - "Can't establish a reliable data connection to the server". 3G is fine, on a wifi connection that is fine, web browser works fine..... Google Apps account works fine.
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Apr 10, 2009
I'm running into difficulties overriding an ArrayAdapter to be displayed in a ListActivity. The ArrayAdapter is filled asynchronously. What I'm trying to do is add a special "sentinel" object that sits at the beginning of the list to show the progress of the computation. Ultimately this may be a progress bar, but right now I am just using a TextView as a placeholder. The problem is that the sentinel seems to get inserted multiple times into the list - not just once at the beginning. It *seems* to be appearing once per "page" of list data (so if 8 list items fit on the screen, my sentinel appears as the 1st, then 9th, then the 17th, etc..), but that interpretation may not be accurate. While maybe not how ArrayAdapters were intended to be extended, I thought something like this should work by simply overriding getView() to show my custom TextView for index.
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Sep 3, 2010
I have the current code...
How would i put a vector into my array_spinner?
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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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Apr 19, 2010
I need some simple databinding for a Spinner. I want to display 2 items for each dropdownitem.
So when the user clicks the spinner I get a list like code...
I understand this can be done when using a Cursor, according to the databinding info on android dev. Like code...
However, I don't get my data from a database, so I don't use a cursor, I use a ArrayAdapter. Unfortunately it looks like there is no support for databinding with this adapter.
Is there a way to do this?
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Aug 13, 2010
I am using an ArrayAdapter<CharSequence> to populate the items to list in a android.widget.Spinner. That works all fine. But now I want to keep the list of items dynamic, i.e. I want to be able to add/remove items from the selection list at runtime. However, when I call adapter.add(item) or adapter.remove(item) I always get a UnsupportedOperationException, even though the Javadocs of the ArrayAdapter class describe these two methods as to be usable for exactly that intended purpose.
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Oct 19, 2010
I need a gallery to be able to hold up to thirty custom views. These views need to added or removed whenever, they also need to be able to be display in a display bow beneath the gallery. How do I do this?I looked at the doc file for arrayadapter but it requires me to use a reference Id for each view I add, but each view is all java coded. Should I just use setId upon creation of the view and just throw that id into the array adapter, or is there a way to create one without using resource id's?
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Sep 18, 2009
i m having Array Adapter it displays list views normal whenever i click on that particular item from the list it doesn't works.can u tel me how to solve this.
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Apr 27, 2010
I'm trying to filter my ListView which is populated with this ArrayAdapter:
CODE:............
However, when I call filter('test') on the filter nothing happens at all (or the background-thread is run, but the list isn't filtered as far as the user conserns).
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Nov 4, 2009
I have subclassed ArrayAdapter to set the color of text to RED if the string does not contain 100%, this has been added to a ListView. The problem is that some of the rows show as red when they contain 100%.
CODE:.....................
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Sep 12, 2010
I have an ArrayAdapter in my activity, and when a certain event occur, I'd like to make a specific element flash, or have it highlighted in some way for a couple of seconds. Is there a way to do that?
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Mar 24, 2010
I had a EditText , a button and a spinner . When click the button , the spinner will add a new item with name you entered in the EditText. But here is the question, my adapter.add() method seems doesn't work...here is my code...
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May 3, 2010
I want to add a contact just to my phone and not to my gmail account.Whenever I start to add a contact (phone, 208544.menu, +contact, create new contact,) the next thing it forces me to do is to choose an account to create the new contact under and it lists my 3 gmail accounts.I have no option to just put it on the phone.Any ideas here?We do the same thing on the Incredible but it gives us the gmail account and the phone to choose from but not on the Motorola.
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Dec 12, 2009
I have a ListView that has some minor visual preferences that are set in a PreferenceScreen. These preferences are simple booleans to show or not to show some specific TextViews on each item in my ListView.
Anyhow, when these preferences are changed, I need to notify my ArrayAdapter that the data has changed in order to get the list redrawn. However, doing this via an OnSharedPreferenceChangeListener wouldn't really be optimal because there are several preferences that you can change, that would cause an unnecessary amount of updates to the ArrayAdapter.
So, to the question: How can I identify when my ListActivity has occurred on the screen after closing my PreferenceActivity, which I then could use to check for changes in the preferences, and only then notify the ArrayAdapter.
The ArrayAdapter being an inner class of my ListActivity, which is set as a ListAdapter.
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Apr 19, 2010
I have an ArrayAdapter wrapped around an ArrayList of custom objects. I'd like to write a custom filter for that adapter so that when I call getListAdapter().getFilter().filter("abc") the list will get filtered by an arbitrary transformation of "abc".
I thought I would just try to override ArrayAdapter.getFilter(), but that requires I re-implement the private ArrayAdapter.ArrayFilter which requires access to a bunch of ArrayAdapter's private instances.
What's the simplest way to do this?
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Sep 14, 2010
I need to create an ArrayAdapter and a Spinner that are totally dynamic and have nothing to do with the layout file.
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Sep 28, 2010
I read the Avoiding Memory Leaks article with interest, and am concerned about danging references to the context object. I have a class like the following.
CODE:.........
Is it a problem to have a reference to a LayoutInflater object, since it must be using the context object somehow? Is there a better design pattern for what I'm trying to do here? (Use the context only to initially inflate the XML; from then on just use the View that's passed in to getView)
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Mar 25, 2010
I have an ArrayAdapter powering a ListView. I would like to change the data behind the ArrayAdapter and update the ListView's. Sounds like notifyDataSetChanged(); would be exactly what I am looking for, but it updates the entire ListView, and I would prefer to update on a row-by-row basis.
Is there a way to do this with ArrayAdapter, or do I need to manage my data some other way if I want this functionality?
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Oct 27, 2010
Currently my ListView is filling up with the given String[] but I wanted to alternate some styles on the ListView items. Something weird is happening (I'm surely missing something obvious); The ListView Index is not fixed and the styles are not alternating as supposed. My Code is the following:
import android.app.ListActivity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;..................
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May 12, 2010
I have a ListActivity based on an ArrayAdapter with setTextFilterEnabled set to true. This works fine on a device with a physical keyboard. When I start typing something on the keyboard, the items get filtered.My question is how to get the same behavior on a device with no physical keyboard?
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Aug 26, 2010
I have an activity with multiple list views that are continuously receiving new values form a socket thread, another thread parses the data and updates the array adapters, then the ui thread calls notifyDataSetChanged() to cause the list to refresh.
My issue is that im refreshing all the list a couple of time a second, this causes the UI to be very laggy when some animations need to happen.
I was wondering what the best way is to update multiple lists with multiple value changes every second?
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Feb 25, 2010
I have a problem updating a progress bar.
First i have a custom adapter in which i create a row for each item with a textview and a progress bar. (i have a item_row.xml in where i define the layout for each row)
CODE:...............
Ok, now i have a service downloading in background data from an external API, and i want when to update the progress bar every second with the progress of the download.
For that, i have a timer task made with a handler (reference)
But the problem is how can i access again to the progress bars created in my adapter in order to update the progress?
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