Android :: Alternating Styles On ListView Using Extended ArrayAdapter

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;..................

Android :: Alternating styles on ListView using extended ArrayAdapter


Android :: Change Colors For ListView - Alternating Row Color?

Apr 24, 2010

I have a couple of list views, one uses TextViews laid out with xml, the other uses a custom class derived from View. The default halloween color scheme is pretty ugly. How can I change the background and selection colors for the list elements. Ideally, I'd like to be able to do this in code not xml, to handle the custom view.

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Android :: ListView ArrayAdapter Data Updates Best Practices

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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Android :: Removing Items From A ListView/ArrayAdapter Activity

Aug 24, 2009

I have a list (of messages) and I want to give the user the ability to remove these items from the list. I have extended an ArrayAdapter and give it an ArrayList of my messages and would like to simply remove an item from that list and then refresh the listview instead of reloading the entire list of sent messages. The problem is, if there's only one message and I remove it using listAdapter.remove(messageObject), the adapter is still calling getView and then throwing NullPointerExceptions all over the place. I'm not sure what the best way is to go about this.

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Android :: Change A Specific Row In A ArrayAdapter ListView Droid?

Jul 21, 2010

I am trying to change the color on a specific row depending on different states. This is the code i have at the moment. code...

The code kinda works..but it changes all the rows. Any ideas?

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Android :: Listview With Alternating Resources In Android

May 10, 2010

I have a ListView and an adapter that sets alternating background colors to the list items overwriting getView Method in my adapter. I want to go further and I would to set to each row a Resource background. I try in getView call the method setBackgroundResource:

private int[] messages = new int[] {R.layout.message,R.layout.message2};
//...
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
int MessagePos = position % messages.length;
v.setBackgroundResource(messages[MessagePos]);
return v;}

But this not work, and I the message throws by exception is File res/layout/message.xml from drawable resource ID #0x7f030004

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Android :: Listview / Arrayadapter With Rows Containing Multiple Text Views?

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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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:...................

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Android :: Removing Items From ListView/ArrayAdapter Doesn't Work After Text Filtering

Jul 10, 2010

I have an Android ListView, backed by an ArrayAdapter. When the user clicks on an item in the list, that item is removed. This all appears to work fine, you can click on each item until there are no items left.

However, it all goes wrong once text filtering occurs. Once the list has been filtered once, even if that filter is cleared, all subsequent calls to remove(Object) on the adapter fail to remove the item from the visible list. I've tried calling ListView.clearTextFilter() before removing the item, calling it after removing the item, and not calling it all. There's no difference.

I've looked through the source for ArrayAdapter.java and it seems that once filtering is set, the adapter uses one collection to respond to queries but updates a different one. I can see no obvious way to get it to revert its behaviour. Is this a bug or am I missing something?

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Android :: Styling Added Rows To ArrayAdapter ListView Android

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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Android :: Double Rows In Listview With ArrayAdapter - Android

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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Android :: List Items With Alternating Colors

Jan 12, 2010

I have a list view and an adapter that sets alternating background colors to the list items ("zebra" list style):

public View getView(final int position, View convertView, ViewGroup parent) {
int colorPos = position % colors.length;
...
convertView.setBackgroundColor(colors[colorPos]);
return convertView;}

But now, when i select an item using scroll wheel, or when I click an item, the original colors for selecting/clicking do not override my custom backgrounds (I can see the original color below the one I set).
How can I set the original colors for these states?

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HTC EVO 4G :: Alternating Orange / Green Blinking LED

Sep 27, 2010

On my end, I'm HOT AS HELL. Today has become official the hottest day in Los Angeles on record, breaking 112 degrees in downtown LA. I had an errand to run on my lunch break, so I ventured out into the heat and, while in line at the drive thru to get lunch before heading back, I noticed the LED on my EVO slowly blinking orange, then yellow. I looked, and the phone was no longer charging, even though it was plugged in.

Looking at SystemPanel, my battery was at 118.5 degrees, and it felt a bit hot, but not too much so. Upon returning to my office, the phone is now plugged in and the LED is a solid orange. Was the alternating blinking LED telling me my phone was overheated? If so, have I damaged my phone? It seems to run fine, thankfully.

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HTC Droid Eris :: LED Alternating Colors While Charging?

Feb 1, 2010

So, my Eris has been charging for a while, and I was playing Cestos, and noticed my LED was alternating between Green and Amber. So I exited my game, thinking I probably had an E-mail. Well I didn't. I unplugged my charger, plugged it back in, and it continued this for about 15 minutes. It isn't doing it now, but I just would like to know the cause of it.

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HTC Droid Eris : LED Started Flashing And Alternating From Red To Green

Apr 6, 2010

While charging my phone today, I noticed that my LED started flashing and alternating from red to green. It was plugged into my wall and I was using it while it charged. I suspect this means Im using more juice than Im gaining because my battery was losing power. It also heated up more than usual. Returned to normal once I left it alone.

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Android :: Way To Extend An ArrayAdapter?

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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Android :: Put A Vector Into My Arrayadapter?

Sep 3, 2010

I have the current code...

How would i put a vector into my array_spinner?

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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 :: Possible Databinding When Using A ArrayAdapter?

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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Android :: XML Or CSS For Styles And Themes

Jan 24, 2009

For Style and Thems defination, CSS is considered to be a better standard...(as it has seen many revisions and widely used already in the web areas).. Any reason, why Android using XML approach as opposed to CSS.. Are there any plans of support of CSS too in future..

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Android :: Themes And Styles

Sep 3, 2010

I want to enable different themes in my app. Some elements need "special" variations, like, for example, a headline TextView. Lets say for the example, in theme A, I want the headline yellow on black, in theme B red on white, while the default TextView uses black on white and vice versa.

Now, I can style the default TextView pretty easy by using <item name="android:textViewStyle"> with a different TextView style in each Theme style.

For example:

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

But how can I do it with the headline? As far as I know, I can use style="..." in the layout XML. But there, I can only use an item style like "headlineForBlack", which would ignore the current theme, while I'd rather need something like "style 'headline' for the current theme".

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Android :: Namespace In Styles.xml

Nov 9, 2009

I have defined some attributes in my view and I can assign them like:

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

This works. But when I want to do the same thing with styles.xml:

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

I get "No resource found that matches the given name".

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Android :: Set Styles Programmatically

Feb 3, 2009

Given a widget and a int that references a style (defined in my res/ values/style.xml), what is the 'correct' way to programmatically apply the style to the widget?

Up until now I've been hacking this by...

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

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Android :: Why Can't Add - Remove Items From ArrayAdapter

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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Android :: ArrayAdapter Of Dynamic Size

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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Android :: How To Select Item From Arrayadapter?

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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Android :: Custom Filtering Using ArrayAdapter?

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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Android :: Subclass Of ArrayAdapter Not Working

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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Android :: Flashing Element In ArrayAdapter

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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Android : Add Item To Spinner's ArrayAdapter?

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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