Android :: Display A List With 200 Elements?

Jun 27, 2010

When I have a ListActivity and an Adapter how does Android handle a list with 200 elements.
Does it try to load all of them directly how does it wait till the user scrolls and then renders those elements?

Do I have to worry with performance when a list is too long?

Android :: Display a list with 200 elements?


Android :: Display UI Elements About 180 Degrees Rotated

Oct 5, 2010

I would like to display some UI Elements on a android xml layout file. I try to make an application, where two players can sit at each end of the mobile device, and play against each other.

So need to show some Button 180 degrees rotateted.

Is this possible? I tried android:gravity, but this did not work.

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Android : How To Get Elements From Array List

Feb 17, 2010

In my application by using web service i get the data from database and stored that data in hash table.I took that data from hast table to array.this array data can be displayed in button.My array contains 10 elements.For animation i used view flipper.Now i want to do is display that array elements on button one after another for every 10sec.But in Updater method i didn't get all array elements.How to solve this one

I am sending my code:.......................

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Android :: Best Way To Implement List Of Special UI Elements

Oct 16, 2010

I need an advice. What is the best way to implement in android a list of such UI elements (see the ref)A list contains a lot of such elements (about 30-40). I'm using now relative layout and 4 text fields and I think it isn't a good way.I think it's too heavy (full list will contain: 30 relative layouts and 30*5 = 150 text fields).

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Android :: Dynamic Display Of ListView Elements Partially Working

Jul 26, 2010

I am making a time sheet program where a user inputs his in- and out-punches. I have a ListView that I am populating from an array of calendar objects. I would like each row to show the day and date then on a new line the time, but I only want to display the day and date if it is different from the previous element.Currently, I am setting visibility in the Base Adapter based on comparisons using position vs position-1 (which are used as indices to the array). This only works if the whole list fits on the screen. If it extends beyond the screen and the user scrolls around the results are unpredictable.To further confuse things, I am setting the color of the times, based on the position, to alternate between green and red (in/out) and it works as expected, scrolling or not.How does Android handle the ListView position when scrolling or what could I do differently to show/hide the day and date? Code...

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Android :: How To Read Not Visible Elements Of List View?

Jun 4, 2009

I have a list view which contains some 20 odd items along with a check box. Now when iam trying to delete an item by checking its checkbox,Now if I have six elements in this ViewList, which are visible on the emulator, then the same code just works fine. Problem arises when the list is long and it starts scrolling and some element are not visible.

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Android :: How To Fill Elements In List View Programmatically?

Nov 16, 2009

I have a ListView with an adapter extending BaseAdapter.I create a view (from a LinearLayout and I put some items ont it depending on some parameters. I have a textview, with a drawable and sometime another textview next to the drawable in this horizontal linearlayout. For some reason, this command doesn't seems to work. So when my textview doesn't fill the full width of the list, I can only click on the part of the elements with the widget on it. I have try playing a lot with the layout and I can't get this to work. The parameters seems to be ignore all together. Only hack that would work I found was to set a big minimum width on my linearlayout but I don't think that's the best solution.

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Android :: List View Elements With Multiple Clickable Buttons

Nov 10, 2009

I've a ListView where every element in the list contains a TextView and two different Buttons.I found a solution as described in my answer below. Now I can click/tap the button via the touch screen. However, I can't manually select it with the trackball. It always selects the whole list item and from there goes directly to the next list item ignoring the buttons, even though I set .setFocusable(true) and setClickable (true) for the buttons in getView().This causes that no list item is selectable at all any more. But it didn't help in making the nested buttons selectable.

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Android : Can I Add Imageview To Child Elements In A Expandable List Query

Apr 22, 2010

I am looking to find out how to assign an image to a imageview in each child of an expandable list.

If anyone has any information or links to find out how to do this. code...

is what my adapter looks like at the moment, I have very little experience in customising adapters so I do not know where to start.

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Android :: Clicking Elements Doesn't Display Correct Values / Point Where It Would Pull Old?

Apr 14, 2010

I apologize if this code looks a bit like a mess (considering the length); I figured I'd just include everything that goes on in my program at the moment.

I'm attempting to create a fairly simple Tic Tac Toe app for Android. I've set up my UI nicely so far so that there are a "grid" of TextViews. As a sort of "debug" right now, I have it so that when one clicks on a TextView, it should display the value of buttonId in a message box. Right now, it displays the correct assigned value for the first element I click, but no matter what I click afterwards, it always just displays the first value buttonID had. I attempted to debug it but couldn't exactly find a point where it would pull the old value (to the best of my knowledge, it reassigned the value).

There's a good possibility I'm missing something small, because this is my first Android project (of any note). Can someone help get different values of buttonId to appear or point out the error in my logic? The code...

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Android :: List View Elements In Dialogs Never Expand To Full Width

Mar 31, 2009

I am rendering a ListView inside a dialog. The ListView elements are very simple TextView objects. The problem: whatever I do, they never take the full width in the list view, which has the side effect that the list view selector only covers the actual text, not the whole list entry (i.o.w., if the text of the entry is much smaller than the width of the listview/dialog, then only a tiny portion of the list element is highlighted when focusing it).

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Android : Can I Use Layer-list - Shape Elements To Draw A Horizontal Rule

Nov 10, 2010

I want to set the background of a Relative or LinearLayout to a custom drawable. I want the shape to draw two horizontal lines across the bottom, leaving the central part transparent (empty). The following draws the horizontal lines centered vertically, where as i need them to be aligned to the bottom of the shape. (If you add a rectangle as an item you can see the shape expands to the dimenstions of the parent, but the lines are still centrally aligned). Code...

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Android :: Click In List View Item Changes Status Of Elements Inside Item?

Apr 9, 2010

I don't know exactly how to explain this problem, but I'll try. I have a ListView with several items. Each item has inside a TextView and two ImageView. I want the ImageView change when I click on them, and I want to open a context menu when I press for a long time into the ListView item.For the ImageView, everything works properly. For the whole item, I can show the context menu after a long press, but my problem is that the ImageView changes as well when I am pressing the TextView, for example.I hope you understand my problem. I think that all the children of a view are affected by an event in the parent, but I am not sure.

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Android :: How To Display A List

Sep 23, 2010

I have a String countries[].now when i click a button then on the onClick event this abc array is filled.suppose it is filled with the name of 10 countries.These 10 countries should be visible as a list so that i can choose any 1 country among the list. but i am not able to show them as a list.

My programme crashes if i use the following code :

CODE:...

As countries is filled later on the click of a button.So initially the countries array is empty and as the onCreate() is executed first it crashes.

I found the examples on net where there is pre-defined array.so it works.My array is filled in a onClick event.how can i display List at that moment?

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Android :: Is It Possible To Display A Multi Column List ?

Jul 28, 2009

Hi, I am looking for a way to create a Microsoft data grid style list in android. But I am wondering is there any available built in component capable of doing this job such as listview? Thanks

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Android :: Display Image Before The List In Listactivity

Jun 21, 2010

I'm trying to display an image before the list in a listactivity. If I put an ImageView before the ListView, then only the list is displayed..

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Android :: How To Display More List Item In ListView?

Aug 31, 2010

I want to display a list item that says "More" at the end of my ListView. Clicking on this list-item will perform some action. How can I create this "more" list item?

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Android :: How To Display List Of Images From Database?

May 21, 2009

I would be retrieving values from SQLite database and have to display it in a list view. So how should I pass the images out from the database into the list view (in fact, I only save the image uri in db). I am able to save and retrieve images individually and display it on the screen. But how do I pass a bitmap and display it in a list view.

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Android :: Display List Of Resource Drawables?

Mar 29, 2010

I would like to display all resource drawables in a list so that the user can select one. Is there any way to loop through all R.drawable items so I don't have to hard code them into my program?

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Android :: ListView - How To Display A List In My Activity

May 5, 2010

I'm just starting with Android and can't find how to display a list in my activity. The activity and the layout main.xml are shown below. How can I display the country array in the ListView 'list' of my layout?

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

main.xml


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

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Android :: How To Display Custom List Activity

Jan 20, 2010

I want to display data in list activity. How do I achieve this?

TITLE Date

Sub Title Button

TITLE Date

Sub Title Button

TITLE Date

Sub Title Button

.
.
.
.
and so on

Does a tutorial exist related to custom list activity?

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Android :: Display List In Homescreen Application Widget?

Oct 13, 2009

I can't find how to display a list in the app widget. I have created one app-widget which fetches the database table information and I want to display all the icon:text into app-widget. Remoteviews doesn't have any list functionality.

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Android :: How To Limit List Items Display In ListView?

Nov 13, 2010

I am getting XML data from url and displaying using a custom list adapter in a ListView. I need to display only 10 items in ListView. How I can do this?

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Android :: Want To Display Checked Item Of List View

Feb 13, 2010

I have a list view having several items and it is multichoice list. I want to display the checked item of list view. how i can do this.can anyone help me?

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Android :: Error In Display List View With An Image

Sep 18, 2009

can any one tell how to display the List with an Image in the left side of the view.

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Android :: Display Only Child Items In Expandable List?

Nov 16, 2010

I am displaying items according to different categories using Expandable Listview.Now I want to display only items ,No need of parent name or parent indicator.is there any solution from expandable list view to display only child items .I don't have time Thats y i am displaying items from expandable list view(I am already developed this one) .So please give me some suggestions.It is very urgent.

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Android : Want To Display As List View - Using Simple Adapter

Jul 12, 2010

I am calling one webservice.Result of webservice I am storing in an Array list. Result of webservice I want to display as list view. For ListView I am using SimpleAdapter. and SimpleAdapter is something like this:- SimpleAdapter adapter = new SimpleAdapter(this,hashmap, layout, from, to);

I am not able to put array list into hashmap. Is there anyway to do this?

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Android :: Display A List Of Checkboxes Using Dynamic Data?

Oct 29, 2010

In my apps preferences screen, i want to pop up a dialog that shows a list of checkbox items that are dynamically generated.

How does one do that and also, how does one get the checked values? I have made custom dialogs in the past, but for some reason my brain wont function today ..

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Android :: Designing Screens / Icons Display For List View

Sep 29, 2010

I never do graphics type programming. I'm designing a screen that will need to look good on all phones, and all resolutions. It's for displaying in a list view, and there will be a small graphic for the summary view, and a larger graphic for the detail view. Normally I use a 32x32 (res 72x72ppi).png for the summary view which looks good on my G1. The second image is for the detail view and it basically should fill the entire width of the screen (roughly, it's ok if it doesn't use the entire width as long as none of it is chopped off). The size I use for my G1 is 468x60.

So, the question for the guys that really know this stuff is: What sizes do I need to make these images to support all screens and densities with the fewest number of images? I know that the answer is a little subjective, but I remember seeing a post with a link to a page that recommended 3 different images for the different screens (and it seemed to make sense when I read it), and I think but don't remember for sure that then you would need 6 layouts to support those with both landscape and portrait orientations.

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Android :: How To Make Whole List Of GeoPoint Display On Google Maps?

Aug 8, 2010

I have the Uncertain number of GeoPoint, i want to display them all on the google maps. I don't know how to do it.

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