Android :: Automatic Expansion Of List View
Apr 16, 2010
Iam facing problem regarding automatic expansion of list view..1) i had separate xml file for each list item . i.e inflated in efficient adaptor, list element is also using selector or highlightor file for background change on click.
Now in my main xml file view is like this
-LINEAR LAYOUT - VERTICAL (MAIN)
- LINEAR LAYOUT -HORIZONTAL HAVING5 BUTTONS .(CHILD 1)
- LINEAR LAYOUT - horizontal having two views as list view.
Problem i am facing here is second child having two listview .. only one listview is visible and it is expanding itself to width as fill parent.
1)I had tried to chnage the list item size ..
2)Secondly i tried to customize the listview size parameters in main xml ,but it is cutting the list view i.e. showing half data.
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Nov 3, 2010
I am on Android 2.1 and I have one multi column Custom listview Using BaseAdapter with an editable edittext at the end of the listview. If the data in the listview do not contain the data of user choice then user should be able to enter data. If the data is already there in the list user will be able to select the data using custom selector. If a selection is made in the list view and user wanted to enter data in the text field at the bottom after selection then the marker in the list view should be unselected. I tried to use onclick() method on edit text using click listener. First time when it is clicked, edit text is getting focus and onclick() method is not fired. And when it is clicked second time, onclick() method is fired and notifyDataSetChanged() method is called. I tried to call the notifyDataSetChanged() method from the Focus Listener, list view selection is gone in my first attempt and edit text is not receiving any data input from the keyboard (frozen).
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Apr 4, 2010
I'd like to show another List View 'B' after clicking a item of List View 'A'. I use onListItemClick event in Android 1.6 project.
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Jun 8, 2010
Is it possible to have a horizontal list view with an vertical list view? I would like to horizontal list scroll within a vertical list scroll.
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Aug 2, 2010
I am trying to set up a ViewFlipper that changes a SlidingDrawers content each time a button is pressed. So far every view I set up worked fine, but now I am trying to create a ListView (including single_choice_mode) within a child view of the ViewFlipper, but my attempt only let to a NullPointerException. As I only discovered ViewFlipper today, I am not yet familiar with it and may not have understood it completely. if someone could give me a hand and help me find out what I have done wrong, that would be great. Here is what I have done:
The code for the onClick event of the ImageButtons:
public void onClick(View v){
if (v == btnExposure){
mFlipper.setDisplayedChild(0); }
else if (v == btnProperties){
mFlipper.setDisplayedChild(1);}
else if (v == btnSpecialEffects){
mFlipper.setDisplayedChild(2);.............
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Aug 1, 2010
I want to show automatic checklist in android. For example I can have 4 list of item with unchecked check box adjutant to that.After 5 sec. delay I want to check the first item then move on to second. At the end of 20 sec. I should have all 4 check box checked one by one.Any idea how should I go on doing this ? I can use list view with checkbox option on.right?I am a .net programmer and this is new experience for me so any comment / advise is appreciated.
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Apr 23, 2010
I'm trying to create a multiple selection list where the selection is represented graphically rather than with checkboxes.My list has checkboxes, but I want them to serve a different purpose. I'm using a cursor to hold my data and created a custom view binder for the SimpleCursorAdapter. I did this for the checkboxes and general flexibility.So far I haven't even been able to show one line as being selected. I've enabled multiple selection on the list and denied the children of the list item focusability. I've tried manually changing background color with the position fed in through the list item click listener. But the wrong items get changed and they don't even change to the right color. I've enabled touch focusability with no improvement either.Ideally, I'd like the trackball highlight focus bar to appear in multiple places. But I don't think this is possible unless you use the drawable directly. But I don't know how to find or apply it. My next idea was to have a slim view bar that changes color. But I had the same problem with the wrong item being selected so I never finished trying to guess the index position to see if this would work. My most recent idea is to completely swap out the view for another one if it's selected. But I have no idea how to do this either. I'm thinking of using an array list to store the _id s of the items that need a different view to get around the wierd selection problem. I'm also thinking of passing in the ID field as my from and the selection view as the to for my adapter. Then I'd intercept it with my binder and change the view accordingly. But once again, I'm not sure how to do this successfuly.
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May 3, 2010
I am trying to display the text from json in a list view.But my problem is that i cant figure out how to display them in list view. I also want to get only some of the text from url(for example, alerttext and date). Can anyone help me in declaring the list adapter and list view in order to display the data in the way i want.
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Jul 14, 2010
By Default in the Listview,focus will come on the list item.Instead of that, can I get only the border to the list item?I can achieve this by using a transparent image as a list selector.Is there any other simplest way to achieve this requirement?
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Mar 11, 2010
I've tried to add a TextView before a ListView in a LinearLayout. The result is that the ListView wont show at all. The same thing happens if I put the TextView after the ListView, but then I will only see the ListView. Is there a way to get a text view above the ListView without to much of a hassle?
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Jun 25, 2010
In my app i'm setting background to each child views in listview. So that listview default focus ( orange color ) is not focusing. Is there any way to set both ( listview focus & child view background)?
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Jul 27, 2010
Please advice how to set fixed heigh (in dip) for the child view of ListView component? I am using relative layout as root layout for the child view when I set backgoround image to relative layout it becomes very height (maybe because backgoround picture is large) and I want to set precisely the height in dp.
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Oct 1, 2010
but no use even if try increasing the minheight....
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- Here you put the rest of your current view-->
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"........................
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Aug 4, 2010
I am working on an application where I need to display some locations on a map and in a list view where the user should be able to toggle between these views(activities?). I want the toggle button(s) to be in my custom titlebar like in the images (if they are attached). What is the best practice for this? Tab view seems like a solution but can I customize the tab buttons? Should the map and list be in different activities or the same? Now I have two different activities one extending MapActivity and one extending ListActivity but no way to toggle between them. Is it possible to load activities into a FrameLayout?
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Sep 2, 2010
In my code i have state for each row of content so in list view if row has state as read, i need to display it with opacity/ transparency but for the view there is no direct method to set alpha.
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Aug 20, 2010
I want to be able to tell if a view is visible in my listview, which is populated by a custom CursorAdapter. How can I do this?
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Jul 18, 2010
I have a click event hooked up to my listview.I need to pass a string param to the new intent based on which listitem they clicked on. The value I want to pass is in the listitem called txt_Genus. How do I get that value out of the listitem to pass to the intent?
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Jun 24, 2010
Is there a way to get the first visible View out of the ListView in Android?I can get the data that backs the first View in the Adapter but it seems I can't get the first View in ListView.I want to change the first visible view after a scroll action finished. I know that I should not save references to the view.
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Mar 3, 2012
Is it possible to have an image view overlap a listview? Basically I want to put a vertical line done the center of my list view to make a vertical dividier between the textviews in a listview row that are statically sized horizontally and dynamically sized vertically.
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Nov 27, 2009
Can any one tell the expansion of API?...
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Feb 15, 2010
I have been waiting for the expansion of google market and to my shock I see that there is almost no activity on the same for the past couple of months. We just keep hearing that expansion will happen, but absolutely no news on the same. Does someone out there have any updates, and can comeone from google reply for this query that we have been asking a million time, just once.
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Aug 12, 2010
I have an ExpandableListView bound to a SQLite database. To simplify things, lets assume the database contains two columns: title and body. In the ExpandableListView, there is a group for each title, and a childfor each corresponding body.
Now to make things more interesting, some of the rows in the SQLite database do not have a body (that is... they only have a title). As you can see, if there is no body, then there is no reason to expand the group... because the child will be empty (i.e. String body == "").
I'm searching for a way to catch a situation like this, and skip the group's expansion. I don't want a blank child to be expanded. To put it in psuedo code, I want something like this:
CODE:...............
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Aug 16, 2010
For a better handling and overview in expandableLists I would like to show only the childelements of the last selected group - the previously expanded group should be automaticly collapsed. The groupheader of the expanded group should be als aligned to the top of the screen to show the user that he's in the right group and that he can start to read the group childs from the beginning.
This worked well with the following code until now (android 1.5 - 2.1) but with android 2.2 the selection seems to work after the collapse method call:
CODE:..............
If a group is selected by touch and expanded it should collapse the previously expanded group (if one exists). To align the groupheader to the top of the screen the method "setSelectedGroup(groupPosition)" is called.
Without collapsing a group (e.g. if you close the group manually before you open another) the selection is done correctly, otherwise the list entries of the expanded group are shown somewhere in the middle and not at the top as expected. Has someone a solution or workaround for this issue? The new API method smoothScrollToPosition (API level 8) is also not working in this case.
I mentioned this issue also here: http://code.google.com/p/android/issues/detail?id=9177
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Jul 13, 2010
I just have a question on that new Seidio 3500mAh battery. Is that the only expanded battery that is currently on the market, or are there other ones that are bigger that do not require a modified back plate. I was just wondering if there are others that are in the works that may be a better alternative.
Also, i was reading that the new Droid X has stellar battery performance for a strikingly similar phone from some reviews on the web, and its battery is rated at 1540mAh. I saw a picture of the battery itself, and was wondering if any of you know whether it would fit in the EVO or not. I don't care much for the Droid X, but if its battery would fit the EVO, maybe that could help the cause.
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Jun 30, 2010
What is the max size microsd card that can be used? The .pdf user manual states microsd 2.0 compatible but does not mention size. I�m also not sure whether the microsd 2.0 standard includes microsdhc.
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Apr 6, 2010
How to use list view in android. Basically I have an array with names of people which I wanna display on the screen. The user can click and select multiple names, the selections are to be noted down for further processing.
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Mar 19, 2010
I am using List View in my project where i have used a xml file which is used to create the list item.Then i have used it programmatically in my class which is extended by ListActivity. But the problem is i have to add a button in the bottom of screen which is not related to list view but List view covers all the screen. So,is there any way to add button in bottom with list view in android.
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;.......................
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Oct 18, 2010
I have used tab view and inside frame first view is ListView.My list view has white and blue background alternately like 1st is white, 2nd blue, 3rd white, 4th blue.I have tried disabing cachehint and even using it. But when i scroll the alternate colors are broken like we can see 2 consecutive in white or blue. Sometimes even 3 in same color. This happens when i scroll the list.
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Nov 18, 2010
There is a method for knows what rows are currently displayed in a ListView? I would like to use it for free memory.
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Oct 5, 2010
I am trying to get two lines in the same row in a list view and I looked at some things online but found it hard to apply to what I am trying to achieve. Could anyone look at my code please and suggest me how I can make it possible. Code...
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