Android :: Custom ListView Background
Oct 13, 2010
I have a LinearLayout layout with a ListView in it. I've made the android:background of the LinearLayout (I've also tried it on the ListView) be an image that I would like for my background.
This works fine enough. However, when I start scrolling through the ListView, the background often disappears and becomes black. If I move it around some more I may be able to get it to appear again. It would seem that Android is drawing over, or perhaps painting what's behind my background onto the items.
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Apr 1, 2010
Is it possible to apply a custom background to each Listview item via the list selector?
The default selector specifies @android:color/transparent for the state_focused="false" case, but changing this to some custom drawable doesn't affect items that aren't selected. Romain Guy seems to suggest in this answer that this is possible.
I'm currently achieving the same affect by using a custom background on each view and hiding it when the item is selected/focused/whatever so the selector is shown, but it'd be more elegant to have this all defined in one place.
For reference, this is the selector I'm using to try and get this working:
CODE:...............
And this is how I'm setting the selector:
CODE:.........................
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Jun 18, 2010
I am trying to create custom background selector for my ExpandableListView. It works fine for all states other than focused. I am unable to identify which row is currently focused. Here is the code...
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Jul 13, 2009
I have an expandable list with a custom adapter. Everything works great but there are two problems.
First whenever a group or child has a custom background color set the orange selector does not show up. If I dont setup a color the selector draws nicely and also the fade away for context menus works.
Second, some of my text inside a list item is linkified. Whenever a link is present the selector does not draw again. It seems that the click event is handled by the internal link view instead of propagating to the list view.
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Jun 26, 2010
I would like to change text and back ground color of my Listview without building custom rows. Is this possible ?
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Jun 18, 2010
I have seen examples implementing a custom Filter. The Android developer docs talk about implementing a Filterable interface. Does anyone have any advice and/or sample code on the best way to implement filtering in a ListView ?
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Jun 25, 2010
Back when I originally wrote my app, I thought I could use some tricks with TransitionDrawable to briefly highlight some rows in a ListView. However, when I actually implemented this (a fading background), the background would jump from item to item randomly.
As my knowledge of Android has progressed, I've learned why this no longer works: the ListView uses optimizations and actually shuffles rows around, so the row that I may have originally told to animate ends up placed in a different spot by the time the ListView is visible.
My question is whether there's a solution to this problem. I've thought of using a different view type, but that would only work if I can turn *off* the view type for that row at the right time; since I'm using a TransitionDrawable, there's no way for me (right now) to mark once the animation is done.
Does anyone have any ideas on how to make a temporary fading background on particular rows in a ListView?
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Oct 29, 2009
ListView Question! I know it's possible change the row color, but it's possible to put some imagem on background? And if yes, it's possible to create an imagem 1px and repeat-x or repeat-y like CSS?
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Sep 26, 2010
I would like to change the background color of a ListView Item after it has been touched until a further event.
This is my code:
CODE:............
Changing the background color of view yields weird results.
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Mar 29, 2010
I want have an image and i want to set it as a background of android list view. i have used android:background="drawable/image" but nothing happened. how to achieve this?
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Oct 22, 2009
I have a ListView backed by customized ArrayAdapter where each item has 2 LinearLayouts - one I call head, and the other one - body.
The body is hidden (gone) until user clicks on the row at which time it slides out. The second click (on the head) will hide the body. However if user clicks on the body it brings another activity. All of this works just fine, here comes the problem:
When user presses on body I want a visual indication of the action just the same way as regular list item will flicker an orange background when pressed. I'm not getting this by default since (my theory) the onPress event is intercepted by body's view and not processed by the list item.
The first thing I tried was to execute body.setBackground('#ff00ff') (never mind the color) in onPress event. That didn't work since (I suspect) there's no repainting after the call. Then I dig a little bit more and decided to use <selector/>-based background. I defined body_background.xml in drawable folder and assigned that to the body's background property.
There I noticed that background will only change if the even is processed by the list. For example if I set <item android:state_selected="true" android:drawable="@drawable/selected"/> then when I press on the head - the background of both elements (head and body) will change, however when I press on body - nothing.
So to summarize my question - how do I change background of the child element in the list item if I assign custom onClick handler to it? Any hints will be greatly appreciated
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May 14, 2010
I have created a specific List which exists out of the following elements to create a scrollable list with every row containing a Image on the left side and some text on the right side.As long as the screen is shown statically (as in no movement) it will be shown correctly, but when I start scrolling through the list the background of the row-item (an "icon" as can be shown in the code) will be shown corretcly but the background of the "root" layout will become completely black when the scrolling stops the background will, most of the times, get back it's color.As I test I also added a TextView in that root-element with the same background, this one will detain it's color when the List is scrolled.
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Apr 30, 2010
I am developing an android application where I need to manipulate the background image of the rows in listview on certain conditions. Initially when the listview is loaded all works properly. But when I scroll down to the listview and come up again the background image changes. Can someone tell me the reason why its happening so? Hope to get the reply soon.
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Nov 12, 2010
I have a ListView with a lot of "rows". In each row, i have one TextView with a background image. When i scroll, the images of the rows mixes... they jump to another row with the scroll.
In have tried android: scrollingCache="false" and android:cacheColorHint="#00000000" but nothing.
The images are loaded dinamically.
Part of my layout:
CODE:.........................
And part of my code:
CODE:............
"avatars" is a cache of Drawables. any idea?
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Feb 16, 2010
CODE:.............
This is my current row. If I created a .JPEG, and I want that to be for each item...how would I change this .xml file? Where would I put the image? In Assets?
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Jul 30, 2010
I have an array of all the URIs of the images which I am showing in a List. Now I want to run a thread in background which gets this images from web and store them on the SD card. So when I click a particular element in the list instead of fetching from web it should fetch from the SD card in the new activity.
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Jan 20, 2010
I want to implement the fade effect in the listview like in shown in the link. http://developer.android.com/resources/articles/listview-backgrounds.But here it is not explained how to implement that fade effect. Does anybody have any idea on this?
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Sep 23, 2010
I have defined a custom theme, where I am drawing a dark gradient on my window background. My ListView background is set to be transparent, however whenever I scroll, the background color turns black, and then after scrolling has stopped, goes back to the gradient color. Why is this?
CODE:.....................................
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May 10, 2010
while scroll the listview, the Layouts background gets flickering. that is the layout is has a background image. this image will gets invisible and reload all the time while scrolling. how to rectify this? Any Idea?
Note: its happening for inbuilt android Array Adapter too.
CODE:.................
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Feb 7, 2010
How can I change background color of ListView items on a pair-item basis. When I use android:backgroundColor in the ListView item layout I can achieve this, however the list selector is no longer visible. I can make the selector visible again by setting drawSelectorOnTop to true but then the selector overlays the whole item.
Any ideas how to change those background colors and keep the selector?
I would rather not change the selector itself.
Authors of GMail application have managed to achieve exactly this so it's definitely possible.
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Apr 23, 2010
How to do a listview which looks like this? I'm interesting in the style of rows with an own background and the selector working fine.
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Apr 23, 2010
I am loading a listview dynamically. I have set a .9.png image as row background image. The main purpose of using .9.png image was to extend the height of the image dynamically according to the contents of the listview. But, the image is not getting extended. The contents which can be displayed within the height of the row are being displayed and the rest are being cut.
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Apr 16, 2010
I am trying to overwrite the default backgroud color of List item which is holding the focus in the ListView. As you can see, in Android Setting Menu, when you scroll through the ListView, the focused ListItem has a red backgroud to highlight its focus. Does any way to change the default behavior by highlighting it with other color or just a bottom red line under this Item.
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Apr 4, 2010
I am trying to implement a ListView that is composed of rows that contain a View on the left followed by a TextView to the right of that. I want to be able to change the background color of the first View based on it's position in the ListView. Below is what I have at this point but it doesn't seem to due anything. Code...
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Jun 28, 2009
If you derive a class from ArrayAdapter for the purpose of customizing the views of listview items, and you vary the background color of those items by doing something like this in getView()...
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May 28, 2010
Is there any way to place a custom icon for each group item? Like for phone I'd like to place a phone, for housing I'd like to place a house.
Here is my code, but it keeps throwing a Warning and locks up on me.
CODE:.............
The error i'm getting:
CODE:................
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Oct 6, 2010
Threre is a unique resquirement for my project.
I need to create a custom scrollbar for a listview.
I can do this task by setting drawable for scrolllbar.But that does not fulfill my requirement.
There are arrows in scrollbar drawable image and when clicked on them,particular list item should get selected.
So I need to use custom scrollbar for this requirement.
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Apr 29, 2010
I wrote a custom Adapter for a listview ,but when i tried implement click event for list item ,i found that it was not responding ,I will be glad if someone suggest me a solution.
public class TourList extends ListActivity {
....
setContentView(R.layout.tourlist);
getListView().setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
//i couldn't reach here
Log.v(TAG,"did u get me");/.....................
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Aug 20, 2009
I have a custom ListView and I want to redraw a View inside each row under some circumstances. How would I do that in the ListActivity?
But that seems a waste, redrawing the whole listview. Code...
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Sep 1, 2010
I am in a situation like, i have custom list view. One button, with listitems. When i click the button, i need to switch the activity. But the calls, startActivityForResult(myIntent, 0); --> is a non static call. I couldnt initiate this function in onClickLIstener() for the button. Dont know how to proceed with this situation ? Can anyone help me out with this.? Code...
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