Android :: ListView Item Background Via Custom Selector

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

Android :: ListView item background via custom selector


Android :: ListView - ExpandableListView As Well - Selector Highlight Problems With Custom Background

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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Android :: ListView Item Selector To Use State_checked?

Sep 18, 2010

Trying to get an Android ListView to do what I want.

I want to have a ListView in single choice mode with a custom row layout that has a different background color for selected, pressed and checked (i.e. the choice is shown by a color rather than a check mark - this is what I would normally call the "selection" but selection in android seems line I'm about to choose before I press it)

I thought of trying a background selector with the three states in it. It works fine for state_selected and state_pressed, but not state_checked. So I created a CheckableRelativeLayout that extends RelativeLayout and implements Checkable and used for the view of each row.

A simplified version is shown here:

CODE:.....

bkg_selector looks like

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

The colors are defined elsewhere.

This still didn't work. So in the custom ListAdapter I tracked the "checked" row and tried (in getView) if( position == checkedPosition ) ret.getBackground().setState(CHECKED_STATE_SET);

And it STILL doesn't work. How can I get it to do what I want?

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Android :: Listview Selector Based On Item-type

Nov 3, 2010

Look for examples where ListViews can show multiple view types.

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Android :: ListView - Style Of Rows With An Own Background And Selector

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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Android :: Selector - Listview With A Custom Item_row.xml

Mar 5, 2010

I have a listview with a custom item_row.xml. I've defined a selector in this way:

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

And then put into item_row.xml in this way:

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

I want 2 things:

When i move with arrow keys, the item selected changed its background. It's works fine with the actual implementation of selector.
When i press a item, the item changed its background too, but it doesn't work with the actual selector.

I try to set also into the ListView android:listSelector="@drawable/list_selector" but it doesn't work neither.

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Android :: ListView Item Background

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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Android :: Set A Background Image For Each Item Of ListView

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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Android :: How To Overwrite Default Background Of List Item In ListView?

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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Android : Way To Maintain Orange Background Of Selected Listview Item In GetView?

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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Android :: ListView Item From Custom Adapter Not Selectable

Jul 1, 2010

I'm making a custom adapter so that I can display a list of items with icons which looks like the menu that comes up when you long click the home screen. For some reason though the list items are not clickable. The can be navigated to with the D-pad but they cannot be clicked in any way. I thought maybe the problem was with the AlertDialog I was using so I replaced a working adapter I had elsewhere but I have the same issue there. My adapter looks like this:

ArrayList<IconListItem> mItems; LayoutInflater mInflater;
public IconListAdapter(Context context, ArrayList<IconListItem> items) {
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mItems = items;
} public IconListAdapter(Context context) {
this(context, new ArrayList<IconListItem>());
} public void add(IconListItem item) { mItems.add(item);
notifyDataSetChanged(); return item;
} public void remove(IconListItem item) { mItems.remove(item); notifyDataSetChanged();
} @Override public int getCount() { return mItems.size();
} @Override public IconListItem getItem(int position) { return mItems.get(position);
} @Override public long getItemId(int position) { return position;
} @Override public View getView(int position, View convertView, ViewGroup parent) { View view;
if(convertView == null){ view = mInflater.inflate(R.layout.two_line_icon_list_item, null);
} else { view = convertView; } IconListItem item = mItems.get(position);

TextView lineOne = (TextView) view.findViewById(R.id.firstLine);
TextView lineTwo = (TextView) view.findViewById(R.id.secondLine);
ImageView iconImage = (ImageView) view.findViewById(R.id.icon);
lineOne.setVisibility(View.VISIBLE); lineTwo.setVisibility(View.VISIBLE);
iconImage.setVisibility(View.VISIBLE); lineOne.setText(item.getText());
if (item.getSubtext() == null) lineTwo.setVisibility(View.GONE);
else lineTwo.setText(item.getSubtext());
if (item.getIcon() == null) iconImage.setVisibility(View.GONE);
else iconImage.setImageDrawable(item.getIcon());
return view; }

And the XML it's inflating:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="6dip" >
<ImageView android:id="@+id/icon" android:layout_width="wrap_content"
android:layout_height="fill_parent" android:layout_marginRight="6dip" />
<LinearLayout android:orientation="vertical" android:layout_width="wrap_content"
android:layout_weight="1" android:layout_height="fill_parent" >
<TextView android:layout_width="fill_parent" android:layout_height="wrap_content"
android:layout_weight="1"android:gravity="center_vertical"
android:id="@+id/firstLine" android:ellipsize="marquee" android:inputType="text" />
<TextView android:layout_width="wrap_content" android:layout_height="0dip"
android:layout_weight="1" android:ellipsize="marquee"
android:id="@+id/secondLine" android:inputType="text" />
</LinearLayout> </LinearLayout>

When I say they are not clickable, I mean that they items do not highlight in orange when I press them nor does onItemClick ever get called. In my code I have this, a different adapter for another purpose and it works perfectly

this.foos= foos; fa = new FooAdapter(this.foos); fooList.setAdapter(fa);
// View the details for an item when it is selected
fooList.setOnItemClickListener(new OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Intent i = new Intent(MyActivity.this, MyOtherActivity.class);
i.putExtra("foo", ((fooAdapter)arg0.getAdapter()).getItem(arg2));
i.putExtra("list_position", arg2);
MyActivity.this.startActivityForResult(i, 0);
} } );

But when I swap out the first 3 lines for
IconListAdapter ila = new IconListAdapter(this);
ila.add(0, "Test 1", android.R.drawable.ic_menu_mylocation);
ila.add(0, "Test 2", android.R.drawable.ic_menu_edit);
ila.add(0, "Test 3", android.R.drawable.ic_menu_search);
groupList.setAdapter(ila);
I t stops working.

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Android :: Custom ListView Selected Item Children?

Oct 27, 2010

I have a custom listview row that contains a number of textView components. Instead of the "standard" single text item, I have created a item where each listview row contains several bits of information. For this example, I have a record id, a name, and a description for each row in the listview. I have my listview populated via
this.mDbHelper = new RecordDBAdapter(this); this.mDbHelper.open();
Cursor c = this.mDbHelper.fetchAllRecords(); startManagingCursor(c);
String[] from = new String[] {RecordDBAdapter.ROW_ID, RecordDBAdapter.NAME,
RecordDBAdapter.DESCRIPTION};
int[] to = new int[] {R.id.recordId, R.id.lblName, R.id.lblDescription};
// Now create an array adapter and set it to display using our row
SimpleCursorAdapter records = new SimpleCursorAdapter(this, R.layout.record_row, c, from, to); this.list.setAdapter(dives);

Now what I want is to be able to access the recordId value within each clicked item. I've tried to follow the Android tutorials to no avail. They do something like
Object o = adapter.getItemAtPosition(position);
but that still doesn't help either. What I really want is to get the value of the recordId within each selected listItem. Does anyone know how this would be accomplished? Here is my onItemClick event:
protected OnItemClickListener onListItemClick = new OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> adapter, View view, int position, long rowId) {
// My goal is either to grab the value of the
// recordId value from the textView, or from the adapter.
//Object o = adapter.getItemAtPosition(position);
//Tried this, no joy
Intent intent = new Intent(NeatActivity.this, SomeOtherActivity.class);
// intent.putExtra("selectedRecordId",val); //val here is a numerical record row id being passed to another activity.
startActivity(intent); } };

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Android :: Custom Separator In ListView Depening On Content Of Item

Oct 22, 2009

I've a ListView with items containing information about places with a rating and the distance to the current location.

The items are sorted into groups:

Group 1: within 500m
Group 2: 500m - 1km
Group 3: 1km - 1.5km

Withing these groups the items are sorted by their rating.Now I put out these items via my custom adapter (extension of BaseAdapter) into the ListView, which works perfectly.

However, what I'd like to do is to put a separator before the each first item of each group. This separator can be a TextView saying e.g. 500m - 1km followed by all the ListView items in that group. Any idea on how to realize this?

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Android :: OnClick() Event On An Item Of ListView Custom Row Layout

Nov 15, 2010

I have a ListView whose rows are formatted by me. Each row has a mix of ImageView and TextView. I have also implemented my own adapter and am able to draw each row through it.

Now, I would want something like this-

User clicks on an ImageView (not anywhere else on the row, but only this ImageView should respond to clicks)
I get to know the position of the row whose ImageView was clicked.

I have tried many things for this and have wanted my code to be as efficient as possible (in terms of overkill).
Currently i can capture the click event on that particular ImageView only, but I can't know which row was clicked.

I have provided an attribute in the Row XML like this-

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

And in my code, I have a method like this:

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

I can get the parent row (perhaps) but am not sure how to go further from here.

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Android :: Cannot Display Image Correctly Using Custom Item Layout In ListView

Apr 22, 2010

I am using a ListView to display my custom item layout, which may contain some TextViews and an ImageView.

This is the item layout I made (post_item.xml):

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

I don't put the ImageView initially in the xml layout, but I will insert it when I need to the FrameLayout programmatically (I also put another views in it when needed). So, there will be some items which has ImageView in it and which don't.

I get the image to fill the ImageView from the Internet (through URL), decode it as Bitmap, and keep it as a Bitmap variable in a class represents the custom item layout (class PostItem).

When the activity shows for the first time it looks fine, but as I scrolled through the items then a problem showed up, the items which shouldn't show any image show the image from the other item which should, although they don't have any ImageView (because I didn't insert it).

I am using SDK 1.6 and the emulator. Haven't tried it in real device because I don't have it.

Here is my code for the Adapter:

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

And this is the code to prepare the items:

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

Is this the bug in the emulator or there is some mistake in my code (probably memory problem for the Bitmap)?

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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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Android :: Custom Listview Background Focus State Not Working

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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Android :: How To Use Selector When Click Item In List?

May 17, 2010

I occur a problem when develop a application on android.There have two image which can be download from server in a list item, it will show one image and will show another image when user select or click this item.if I try to download another image from server when user click it,the user will never have time to see it, for this time is shorter than download image form server,so i want to download two of them,and when I click it again,the app can invoke another image from local.but I do not know how to invoke this image?

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Android :: Change Tab Background - Selector

Jul 28, 2009

How to change the TabBackground in the different states (not the icon!) ?

my files:

CODE:....

Where should i call the xml file above?

I tried it in the TabWidget as src, but it doesn't work:

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

So i tried to use a own theme:

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

But i don't know, which resource i should use instead of "?"...

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Android :: Selector For A ListView ?

Sep 28, 2010

I have created a ListView and applied a selector to it as follows

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

When focussed or pressed, the background of the ListView item comes as specified in the selector. But the default background is never applied, can you tell me what is wrong?

By the way, this is the customised row xml I've used:

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

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Android :: Selector On Background Color Of TextView

Aug 28, 2010

I'm attempting to change the background color of an Android TextView widget when the user touches it. I've created a selector for that purpose, which is stored in res/color/selector.xml and roughly looks like that:

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

The clickable attribute of the TextView is "true", in case that's of interest.

When I assign this selector to a TextView as android:background="@color/selector",

I'm getting the following exception at runtime: ERROR/AndroidRuntime(13130): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #6: <item> tag requires a 'drawable' attribute or child tag defining a drawable

When I change the attribute to drawable, it works, but the result is looking completely wrong because the IDs appear to be interpreted as image references instead of color references (as the "drawable" suggests).

What confuses me is that I can set a color reference, e.g. "@color/black", as the background attribute directly. This is working as expected. Using selectors doesn't work.

I can also use the selector as the textColor without problems.

What's the correct way to apply a background-color-selector to a TextView in Android?

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Android :: ListView Selector Color ?

Jan 10, 2010

I have 2 questions regarding a ListView in Android:

How can I get the color of the listview's focused row ? I tried to use the ListView.getSelector() method, which according to its documentation should give me what I'm looking for, but it's giving me a Drawable object which I don't know how to retrieve the color from (if possible...).

How can I set the color of the listview's focused row ? Here I tried to use the setSelector() method on the listview, passing it a ColorDrawable object, but the result of doing it is that the whole background of the list view is painted in that color... and this is not what I wanted of course...

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Android : Add 'permanent' Selector In ListView?

Aug 30, 2010

I'm looking for suggestions on how to go about adding a ListView selector that is 'permanent'. By this, I mean a single row in the ListView is always highlighted; it should move up or down in reponse to any D-pad presses (i.e. like the default selector) but also remain set/highlighted if the user were to scroll the ListView in either direction (i.e. it's still highlighted even when it's off-screen).

I've looked at using the standard selector mechanism, but am unable to get the selector to remain in place if the ListView is touched (and thus scrolled), so it makes me think that this isn't the best option? Perhaps there's a <selector> "state_*" that I've ignored?

The other option would be to use the onItemSelected() callback, but at first look this appears more convoluted?

Any suggestions/recommendations/experiences gratefully received.

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Android :: Overlap Problem With ListView Selector

Apr 28, 2010

I am trying to style my ListView with two 9-patch background images (16px * 9px), one dark image for default state and another green image for selected and pressed state.

It works except for just one problem that when I select or press one list item, it seems that the selected item overlap the next one a little bit as I can see some pixels of the green background image is on the top of next item.

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Android :: ListView Selector - Selection Does Not Get Removed

Sep 27, 2010

I have a ListView. When I click on a ListItem, I set the background of the ListItem (it's view) to another color:

CODE:........

Here is my adapter:

CODE:......

The problem is, if I select multiple rows, then multiple rows have a colored background. I only want the clicked item to have a colored background. So if I click on row 2, I want it to turn red, then if I click row 1, I want row 2 to go back to normal, and row 1 to turn red.

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Android :: Using Selector To Change ImageButton's Background While Keeping Content Image

Apr 18, 2010

I am currently trying to customize ImageButton to show different draweables as background of the Button while keeping the image set via the src attribute.

That's my custom_button.xml:

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

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Android : Droid Home Screen Widget Support Background Selector In A TextView?

Nov 4, 2010

I have a TextView in my home screen widget. Can I use the following selector as the background of the TextView so the TextView can be highlighted when clicked? I know I can do it in Activity, but I am not sure about home screen widget.code...

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Android :: 9-patches In - Selector - Drawable For Custom Button Style

Nov 28, 2009

I'm having a bit of a problem with a custom button style. I have the button states (9-patch drawables) set up in a <selector> drawable. The style I'm going for is a button that looks like it gets pushed down, i.e., you can see the front edge of the button until you press it. It works fine for the button itself, but the contents of the Button (or ImageButton) don't move when pressed, even though I have the 9-patch areas set up to move the content area for the depressed button states. It seems like it's keeping the same 9-patch areas no matter which image it's showing.

Here's an animated GIF to help make the problem a little clearer, since I'm awful at explaining things: http://www.crappytools.net/button_problem.gif The button moves when pressed, but the icon inside stays still. I played with the Draw 9-Patch utility, and it shows that the content area in the depressed image should be shifting downwards like intended.

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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 ?

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Android :: How To Get ListView Item As Web

Sep 21, 2010

I've list view item as a object, I want to fetch item details as web to show.

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