How do you make those standard header labels in the ListView Control?
An example would be in the contacts application you see the first letter of the grouped contacts for each letter in the alphabet.
If possible provide some code snippets on how to construct the grouped data and the display of the ListView.
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Requirement: Display query results in a list with a header view atop each group. (results grouped from database) Looking at Mark's MergeAdapter. Wondering if I might be able to use a single cursor and have each adapter filter on the group field? That a viable approach?
View 9 Replies View RelatedI am dispalying some data by using sqlite .when i click on one button data come from database. It takes some time. At that time the screen is black .At that time I want to display the rotating spinner before the data dispaly.
View 4 Replies View RelatedDoes anyone know how to construct a typeface object from a file? Say i have a .ttf file on the SD card, how do i load it into my app?
View 5 Replies View RelatedIn android 2.0 Contact application, under the 'Favorites' tab, there is a 'Frequently contacted' title bar. Can you please tell me how can I construct that myself?
I would like what is the font size, font color , back ground color that they use.
I have a huge codebase. I am not very clear about its design as documents are rear to find.
Is there any tool available to construct the class diagram from the code? I need to know the interactions between the classes and relations between them. If there is any such tool where i can give the entire code as input and get the class diagram as out put, it will be best for my understanding.
For example if a have two directories /sdcard/Music/Music-1 and /sdcard/Music/Music-2 how can i construct uri to get the files in Music-1 dir for example. I can use MediaStore.Audio.Media.EXTERNAL_CONTENT_URI to get the content of all external storage but how to do the trick only for specific dir.
View 1 Replies View RelatedI am trying to show a list of files using an ArrayAdapter into a ListView. As best as I can tell, the following should work but it is just leaving the ListView empty.
I am not using a ListActivity.
CODE:.....................
I want to display a listview when clicked be able to get the items key value. How would I go about that.
View 1 Replies View RelatedAndroid: How to display images from the web in a ListView? I have the following code to display image from a URL in an ImageView:
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import android.app.ListActivity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.widget.ImageView;
public class HttpImgDownload extends ListActivity {
/** Called when the activity is first created. */
@Override public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState); setContentView(R.layout.main);
Bitmap bitmap = // DownloadImage(
// "http://www.streetcar.org/mim/cable/images/cable-01.jpg");
DownloadImage( "http://s.twimg.com/a/1258674567/images/default_profile_3_normal.png");
ImageView img = (ImageView) findViewById(R.id.img); img.setImageBitmap(bitmap);
} private InputStream OpenHttpConnection(String urlString) throws IOException
{ InputStream in = null; int response = -1;
URL url = new URL(urlString); URLConnection conn = url.openConnection();
if (!(conn instanceof HttpURLConnection)) throw new IOException("Not an HTTP connection");
try{ HttpURLConnection httpConn = (HttpURLConnection) conn;
httpConn.setAllowUserInteraction(false); httpConn.setInstanceFollowRedirects(true);
httpConn.setRequestMethod("GET"); httpConn.connect();
response = httpConn.getResponseCode();
if (response == HttpURLConnection.HTTP_OK) { in = httpConn.getInputStream();
} } catch (Exception ex) { throw new IOException("Error connecting");
} return in; } private Bitmap DownloadImage(String URL) {
Bitmap bitmap = null; InputStream in = null;
try { in = OpenHttpConnection(URL);
bitmap = BitmapFactory.decodeStream(in);
in.close(); } catch (IOException e1) {
// TODO Auto-generated catch block e1.printStackTrace();
} return bitmap; } }
Now how can I display images in an array in a listview? Here's how I want to display the images:
http://sites.google.com/site/androideyecontact/_/rsrc/1238086823282/Home/android-eye-contact-lite/eye_contact-list_view_3.png?height=420&width=279
I'm completely stumped on this one. I have three different lists that need to be displayed on the screen.
I've tried using a ScrollView with a LinearLayout child, and putting my ListViews in the LinearView, but all of the ListViews lock to a fixed height with scroll bars. Using other kinds of Layouts means no scrolling.
I'm pretty new to Android development and would appreciate some help. All I want is to display a ListView showing a Twitter timeline. I do this in an iPhone app using MGTwitter but I've been trying and am not sure how to get the same effect on Android. I can use a list view, but I'm not sure how to get the updates.
In a nutshell all it has to do is display the updates at www.twitter.com/user (User will be hardcoded).
I am struggling on how to display all the contacts and all their phonenumbers in one ListView. Because the persons and their phonenumbers are in two seperate dbase tables I need to do two queries. First one, is to get the user _ID the second one is lookup the phones tabel and based on that _ID get the numbers. Using a Cursor and a ListActivity with a single query is not that difficult, but what to do in this case where I need to do sub queries. I tried building my own datasctructure, but that is to slow and to expensive to do every time. How do I go about this. The end result would look like this, where each number is separately click-able.
View 6 Replies View RelatedI 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?
View 3 Replies View RelatedI have an android application that shows a grid view that shows:
1
2
3
4
GridView gridview=(GridView)findViewById(R.id.GridView_test);
DataBaseHelper dbhelper=new DataBaseHelper(this);
ArrayList<String> test=new ArrayList<String>(5);
backlinksadapter.add("1");
backlinksadapter.add("2");
backlinksadapter.add("3");
backlinksadapter.add("4");
ArrayAdapter mAdapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, test);
gridview.setAdapter(mAdapter);
By the moment is working, but i would like to show foreach line of the grid, 2 columns with the values of a 2 dimensional array (something like the GridView in ASP.Net - as datasource -).
I would like to show:
1 | Person 1
2 | Person 2
3 | Person 3
4 | Person 4
Any idea?
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:.........................
I can seems to get it write. What is wrong with my layout? code...
View 4 Replies View RelatedI have a ListView activity and I want an EditText (and ultimately a button along with it) to display above it.
I believe my xml is fine, but for some reason the EditText is not displaying. The ListView takes up the entire screen :(
Here's what my XML looks like:
CODE:...........
In the layout tab of the xml file in Eclipse, the EditText shows. When I run my application in the emulator, it does not.
Here is where I set the content view in my onCreate method
CODE:.........................
Here is my extended ArrayAdapter:
CODE:..........................
One of my friends just upgraded to a hero and he said that all his text messages are being grouped as one big thread, no matter who it is from it shows up in just one giant thread. anyone have a solution or have had the same problem? i told him id check with you guys first before he goes back to the sprint store.
View 4 Replies View RelatedI 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?
View 2 Replies View RelatedI would like to create a Home Widget containing a ListView, but I don't know if this is possible and if it is, how to do it. I was using a ListActivity and it was pretty simple, but can't figure out a way to do it using AppWidgetProvider.
View 1 Replies View RelatedI just got the moment as a replacement for the Pam Pre. I am trying to see if I can adjust. One of the main features I am looking for is having SMS messages grouped together in the same thread for the same contact as with the Pre. Does anyone know if it is possible?
View 2 Replies View RelatedI 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...
View 2 Replies View RelatedI'm having a little difficulties while trying to get a certain layout to work: I want to have list. List does not have to be scrollable, but should be shown completely. But the page itself should be able to scroll (with the lists in it), if the total content ist higher than the screen.
CODE:.................
It only uses a small part of the screen (about 2 lines per list), instead of filling the available height, and the lists themselves can be scrolled. How can I change the layout to always show the whole lists but have the screen be scrollalbe?
In my case 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.. 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.can you help me with some sample codes please...
View 1 Replies View RelatedThere are some others applications doing this, like Twitter, Facebook, or even native applications such as Android Market. When you want to display a list of items retrieved from the internet, this looks like a standard way for displaying the user some notification about action in progress. This is a white background screen with an animated spinning wheel and a "Loading..." text. Does somebody know how to do this?. I've been able to do something similar with this code, but i don't like it too much yet.
Still work in progress:
CODE:...............
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)?
I have several images present in different folders in my sdcard. I would like to display a list of thumbnails. So what I have done is while rendering any row in the list I read the file in an input stream, get the byte array, decode it to obtain a bitmap and set it in an imageview.
So far so good. But when I scroll the list, the list scrolls in jerks. I believe this is because decoding a bitmap from byte array takes some time. What I would like to know is that, is there any optimization which I can do to improve the performance, or better still is there any better method to achieve what I want ?
I am building a android aplication which will be consuming a json file from the internet. This json file contains a list of news from a particular website. Each json object contains information such like title, summary, descripition and web links for the news thumbnail and the original image.
I will be displaying in a listview three information: the news thumbnail, the title and the summary. Here resides my problem. I dont want to load all thumbnails from the internet if they wont be displayed. What I am trying to say is that why download a thumbnail from the 30th news if the user wont scroll down the image. So, i will, initially only download the thumnails from those news that are being displayed in the screen and when the user scrolls down to see more news, as soon as the list item appers to the screen i want to download the image and then display.
Is there a way to achieve this? Is it possible to find out if the list item is on the screen? I have been searching all over the internet for a solution for this but i am running out of ideas.
My ListView has to be customized like, it should have three imageView in each ListItem along with the name and date that has to populated from the DB,added with that, once i click upon the a list item ,that corresponding Listitem information has to be displayed in another Screen...The Size of the List should be based on the Cursor object from DB..and it should be possible to add data in to the Listview..too. how to proceed the above said..Please check the ScreenShot of ListView that i mentioned..(My ListView should have to be like this only)..[SampleListView Below- please click that link][1] http://imgur.com/RjtXe.jpg.
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