Android :: Change Default OnListItemClick Behavior Of ListView
Jun 18, 2010
Is there any way i can make my listactivity (rather listview) highlight the List Item when it is clicked (pressed) upon? (...and remain highlighted) The default behavior, simply highlights the item for a moment, and it gradually fades to black... Currently, the highlighting only happens when we use the DPad... It'd be ideal if atleast one list item is "highlighted" at all times. Worst case scenario, i may have to keep track of the "last clicked item" (by default the first) and change its background or something...but i was hoping there was an easier way...
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Sep 11, 2010
i can add to a db and list as a listview. When I click a list item using onListItemClick, what statement do I need to get the value? ........................
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Aug 1, 2009
I am beginer to the anroid ,i am using the below code for displaying listview and i am not able to getting the onlistitemclick events for further ui's. package com.List;
import android.app.Activity; import android.app.AlertDialog; import android.app.ListActivity; import android.content.ContentUris; import android.content.DialogInterface; import android.content.Intent; import android.content.DialogInterface.OnClickListener; import android.database.Cursor; import android.database.DataSetObserver; import android.os.Bundle; import android.provider.Contacts.People; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.TextView; import............................
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Feb 9, 2009
How could I capture an onListItemClick() and pass it to onCreateContextMenu()? In my ListActivity, I don't need regular clicks, so I'd like everything to go to the context menu.
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Jun 25, 2010
I have a ListView which its contents could change at any time (eg. a list of cities within a state; a new city could be added to the state in our database at anytime). How do I implement, if possible, the onListItemClick event to work with this? For example, if a user selects a certain city in the ListView, i should be able to pass a value that independently identifies what city was clicked onto my next activity. I can't listen for positions because they could change with an addition or removal of a city.
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Nov 3, 2010
I have been trying to set a new xml layout, when a particular item on this list is clicked.
Am I missing something, because the emulator crashes when clicked?! setContentViewById(R.id.newxml file)
public class intentProject extends ListActivity
{
ListView list;
ArrayAdapter<String> aa;
List<String> data = new ArrayList<String>();
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);........................
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Feb 17, 2010
I have a listview that shows files in a specified folder which works. But what I can't figure out is in the onListItemClick method. How can I get the name of the selected file in the ListView from the ArrayAdapter instead of the position or id?.......................
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Aug 20, 2009
This maybe against the way the Android team wants this to work, but if not I can't seem to come up with a way to do this. Basically I have a list view that I want to create a ContextMenu when onListItemClick received. So when the user clicks on a list item I want them to choose the action from a ContextMenu. Anyone have an example of how to do this, I can get it to work with no problems with a long press, but my users are missing the menu and just thinking the ListView does nothing.
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Sep 20, 2010
I have a ListView set up in single-choice mode like this:
<ListView android:id="@id/android:list"android:layout_width="fill_parent"
android:layout_height="fill_parent" android:background="#ff444444" android:layout_weight="1"
android:drawSelectorOnTop="false" android:choiceMode="singleChoice" android:scrollbars="vertical"
android:headerDividersEnabled="true"/>
When I press my finger on a choice, the selection changes from white text on light gray to black text on orange. But as soon as I lift my finger, the selection reverts to the original state. I'd like that chosen row to remain in the black-text-on-orange mode when I lift my finger so that the user knows what was selected in the list (my onClickListener has captured the selected row, of course). Is there a way I can tell the ListView that I want this behavior or something similar so the user knows what item has been selected?
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Jul 10, 2010
I got two kind of lists on 4 different views. All lists are clickable and starts an activity to read the clicked record. One is just a listview populated from the DB and works fine. The second is also a listview populated from a DB but has a addHeaderView. This makes the list forget where it was when you return from the listview's intent. If I remove the addHeaderView(); it works fine. Why does AddHeaderView changes or even malfunctions ListView's behavior?
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Sep 16, 2010
I have been trying now for a few hours to reverse the scrolling of behavior of the ListView. Essentially when scrolling down with my finger I want the list to scroll up!
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Feb 4, 2010
I have a listview showing contacts.
When I'm scrolling the list the scroll works pretty smooth however when/if I'm trying to continue the scroll in the middle of the last scrolling the scroll just stops and sometimes the item I clicked on is selected (I have registered an OnClickListener to the item view).
I would like to get smooth scrolling just as in the device native contact list.
My implementation builds each contact a view containing: 1. Big picture for the contact image. 2. Small picture for the type of the contact. 3. TextView with the Contact name 4. TextView with some extra text about that contact.
My current layout for every item looks like:
CODE:........................
I've tried changing the LinearLayouts to relative ones but saw no improvement in performance.
I've created my own "Selector" in code (to eliminate the time it takes to load the resource) so that odd rows will have different background color. The code looks like:
CODE:........
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May 19, 2010
I am using a ListView with an ArrayAdapter that holds objects. When I select an item, I am capturing the position and index of the selected item. If I scroll down prior to selection, the position and index represent the location of the item in the list. Selecting that items takes me to another activity. When I use the back button to return to the list, it seems that the ListView gets a new position and index for the visible items.
As a result, I can't figure out how to reference the selected item during the restart() of the ListView Activity. I have tried to capture position and index, but as I've said, they change upon returning to the Activity.
Is my understanding of the ListView "redraw" correct? Does it renumber my items based on what's visible? -When in the life cycle is getView() called? Is there a way to force an update to the ListView so that my captured index still points to the same object?
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Apr 29, 2010
I'm currently working on a small update to a project and I'm having an issue with Relative_Layout and fill_parent in a list view. I'm trying to insert a divider between two sections in each row, much like the divider in the call log of the default dialer. I checked out the Android source code to see how they did it, but I encountered a problem when replicating their solution.
To start, here is my row item layout:
CODE:..........
The issue I'm facing is that each row has a thumbnail of varying height (ImageView01). If I set the RelativeLayout's layout_height property to fill_parent, the divider does not scale vertically to fill the row (it just remains a 1px dot). If I set layout_height to "?android:attr/listPreferredItemHeight", the divider fills the row, but the thumbnails shrink. I've done some debugging in the getView() method of the adapter, and it seems that the divider's height is not being set properly once the row has it's proper height.
Here is a portion of the getView() method:
CODE:.........
The rest of the method simply sets the appropriate text and images for the row.
Also, I create the inflater object in the adapter's constructor with: inflater = LayoutInflater.from(context);
Am I missing something essential? Or does fill_parent just not work with dynamic heights?
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Aug 10, 2010
The following will not register the Toast upon clicking. In fact, it doesn't even seem to detect a click. The parent class that CustomListTitle extends is ListActivity, so everything should be set, but it's not working. No errors, just no registering a click.
import android.app.Activity;
import android.app.ListActivity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.view.View;
import android.widget.ListView;...................
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Nov 29, 2009
I am having some problems with the default messaging app. Everything was fine until I downloaded Handcent. After playing around with Handcent, I decided to remove it. After I did, when I tried to send a picture with the default client, it would appear to send properly, but the person I was sending too would get a notification that the attached media was 'too large' or something similar, and not be able to view the picture Finally, I reinstalled Handcent and could send pictures from it just fine. I noticed that Handcent asks to resize pictures when sending where the default app does not. I could not find any settings for 'resize' in the default app. I figured I just had a bug with the default client, and continued to use Handcent with no problems. I would periodically check the default client, with the same results.Finally, after several days of using nothing BUT Handcent, I decided to give the default app another try, and now I find that it is working again with no problems, and in fact, the pictures I send with it that are apparently NOT resized look better on the phones I send them to than the ones I send with Handcent. Has anyone else had a problem like this, or know what could be going on?
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Oct 27, 2010
I want to change the behavior of back button,
I have 3 activity, activity1, activity2, and activity3
another activity, activity4 is a login activity
start ->activity1-----click---->Activity2-----click---->activity3
CODE:......................
Now my question is that, when i click on apps, i want to start activity4. I'm not able to do this, always start of application is opening the activity2 in this case (back button).
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Dec 21, 2009
I have an app where pressing button on the screen launches an intent with a new screen and buttons. Everything is working very well, but I'm got one small visual problem. When I press the button on screen on my phone, the new page slides in from the right, pushing the old page off screen left. This happens very quickly, but the overall effect is a bit jarring. Is there a way to stop pages from display this way? If possible, I'd like the page to just appear over the old page, without any scrolling.
Is this possible in Android?
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Dec 24, 2009
I wrote a http proxy on Android 1.5 four months ago. It can work properly on both 1.5 and 1.6 emulator, with APN proxy setting to 127.0.0.1. However, when i port this app to 2.0.1, it's not working anymore. Did browser on emulator 2.0.1 change its behavior? It seems that the browser no longer consider APN proxy as http proxy anymore. Or it's simply a bug on emulator?
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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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May 1, 2010
Three Droids in the family, had for approx 1 month, with no real battery problems other than drain with GPS use. Battery usage extremely predictable. Until yesterday. Day before yesterday, wife's phone reported battery charge of ~30% after being on media dock charger all night. Figured it was a connection glitch of some kind. Happened again today, then while I was looking at the phone, battery went from ~20% to 100%. Now seemed more like a status reading problem. Picked up my phone from its media dock - a different one - and surprise surprise, it too was reading ~30% after being on dock charging all night.
(Yes, we have power and the docks are plugged in.) Powering down phone doesn't reset status, still reads ~30%.
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Jul 27, 2010
I have a single activity with multiple views that represent different steps in a wizard. I have gotten code working that will save and restore the wizard to the correct screen, but after a save/restore cycle I cannot seem to get setContentView to work. The code executes without throwing any exceptions but the view isn't actually updated. Why would this be happening? SOLVED I was using a handler to change screens, but on restore I wasn't using the newly constructed one, so messages were being sent to a handler that didn't have control of the screen.
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Nov 3, 2010
I've a ListView that can have 0 custom items inside (like "My Downloads").Is there anyway to show a default text "No download yet" ?
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Sep 3, 2010
When my app loads, I want the first item in the listview to already be selected. how can I do this?
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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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Jun 24, 2009
I have a listview that is populated by a couple threads that pull in data from the network. Before that data comes in, there are some default values displayed. When the screen loads, there are 6 items displayed, each with the default data. The 1st (index 0) loads and is updated on the screen, and then number 6 (index 5) is updated with that same info. Then, item 2 (index 1) loads, and then item 5 (index 4) mirrors that data. Then item 3 loads, then item 4 reloads with the correct data, then then item 5 with the correct data, then item 6. Why are items 5 and 6 briefly showing the data from other elements in the list? I can't figure out what in the world could be causing this.
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Nov 3, 2009
I want to set the background color of ListView as white.I tried this:
getListView().setBackgroundColor(color.white); getListView().setCacheColorHint(color.transparent);
But it doesnt change the color.What should I do?
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Sep 28, 2010
I want when a user clicks a row, that row grows to show more items with an scale animation, but I can't find how can I do that.
First: I don't know how can I change a height row at runtime. I've tried making the items visible, but this didn't work even if I inflate with another XML layout.
Second: If I achieve the first one, I think I could make the scale animation.
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Nov 8, 2010
How to change the listview row height?
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Mar 7, 2010
I am trying to create a roller so that the user can select the amount of money they'd like to bet. So I created a list view and then put a transparent png over top of it to make it look like a little more fancy. Although it seems when I put the png over top of the listview I can longer see the list. I know this may seem like a far fetched idea, but I'm not sure if there is a better way to go about this.
Anyone know a way that I can create a rolling selector?
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