Android : Can I Create A List Array With Cursor Data In Droid?
Aug 30, 2009How can I create a list Array (the list display First Alphabet when scroll) with the cursor data?
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Android :: Can I Initialize An Array List From Data Specified In Xml Resource File?
Mar 9, 2009Is is possible to specify data in xml resource file and initialize ArrayList from it? I am looking for a way to use the ArrayList with a SimpleAdapter to bind to a ListView. I am wondering if there is a way to specify my data in xml resource file and init ArrayList from it.
View 6 Replies View RelatedAndroid : How Can I Put "String" (get From Cursor) Into An "Array" In Droid?
Aug 30, 2009I want to put a "All String" data (get from "Cursor") into an "Array". But I don't know why the "Array" just return one value? I'm get lost here.
View 1 Replies View RelatedAndroid : How To Get Elements From Array List
Feb 17, 2010In 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:.......................
Android : Way To Create Byte Array From Bitmap?
Jul 20, 2009Is it possible to create a byte array from bitmap?How can I do so?
View 3 Replies View RelatedAndroid : Way To Create Spinner Programmatically From Array
May 6, 2010I'm all new to Android and I'm trying to create a spinner programmatically and feeding it with data from an array, but Eclipse gives me a warning that I can't handle.
Here's what I got:
This ArrayList holds the elements that should be in the spinner (gets filled from a file later on):
ArrayList<String> spinnerArray = new ArrayList<String>();
This is code ...
Now the second line (ArrayAdapter...) gives me a warning in Eclipse saying "ArrayAdapter is a raw type... References to generic type ArrayAdapter<T> should be parameterized", I have no idea how to fix this (or what that means in the first place :) ).
It's just a warning and the App seems to run alright, but I'd still like to understand what's wrong and fix it.
Android :: How To Create An Array Of Objects Which Include Arrays?
Jan 1, 2010I would like to create a list objects called Product (Listproducts).In the application I first have to create the list List products from XML file and then display the products on the map. One product can be located at several locations.Does anyone know what is the most appropriate way to create the structure (a list or linked list) which is the easiest to iterate through and enables to link the lists? The logic should work the following way:
1. Read each point from the list
2. Check which product belongs to the point
3. Display the product informations on the map
Android : Need To Create Bitmap From Integer Array In C / OpenGL
Nov 29, 2009I am trying to move my code from Java to C, and I have encountered a problem while trying to find a function in C that can take an array of ints and create a bitmap from it for OpenGL. In Java, I used
bitmap = Bitmap.createBitmap( {int array name} , w, h, Config.RGB_565);
Is there a similar function that I can use in C, or a workaround that I could use?
Also, if it matters, I am programming for Android.
Android :: Possible To Populate List View From Cursor Row Id?
Sep 23, 2010Is it possible to populate a listview based on a row Id from a custom cursor adapter. I keep getting an error "illegalArguementException column: _id does not exist". but the database has it and is already being used correctly. I don't know what to do, because I would need to populate different listviews from the same database and i don't want to have to create multiple database which will still have the same column names code...
View 1 Replies View RelatedAndroid :: Memory Leak - New Array List String
Oct 6, 2010After several hours of searching for the cause of a Out Of Memory Error, I found a wierd problem with Strings. To keep it simple, trimmed it down to something like this:
ArrayList<String> someStringList = new ArrayList<String>(1000);
for (int i=0; i<1000; i++) {
String someBigString = new String(new char[100000]);
String someSmallString = someBigString.substring(0,1);
someStringList.add(someSmallString);
}
Android :: When Should Close Cursor That I Supply To List View?
Jul 28, 2010I supply a cursor to a ListActivity like this: My question is how/when should I close my cursor when I am done? Cursor cursor = get ContentResolver().query(uri, null, null, null, null);
if (cursor != null) {
mCursorAdapter = new CursorAdapter(this, cursor);
setListAdapter(mCursorAdapter);
Android :: List View Separators Using A Cursor Adapter
Oct 5, 2010I have a ListView which is populated using a CursorAdapter. I'd also like to have some separators in my ListView. I have accomplished this with an ArrayAdapter, but I'm not sure how to accomplish this with a CursorAdapter. Are there any strategies for doing so? Or am I out of luck?
View 1 Replies View RelatedAndroid :: Simple Cursor Adapter - List View
Jun 9, 2010I have table with 3 columns which is binded to an XML document with three text views.
CODE:........
Depending on the value store in the third column, I have to decide whether i should display this row or not
How should, I go about with this.
This is what I have so far :
CODE:...............
Android :: How To Pull Strings From Array For Clicked List Item?
Aug 4, 2010I have an array adapted listview (the array adapting is done in another class). I just got the click listener working for the list but now I want set it up so that when I click an item. It pulls the strings from the clicked item and piggybacks them on the intent to a new activity. I figure I am supposed to use intent.putextra however I am not sure how to pull the correct strings corresponding to the item that i click on. My code is below. I am simply lost to be honest
//Initialize the ListView lstTest = (ListView)findViewById(R.id.lstText);
//Initialize the ArrayList alrts = new ArrayList<Alerts>();
//Initialize the array adapter notice with the listitems.xml layout
arrayAdapter = new AlertsAdapter(this, R.layout.listitems,alrts);
//Set the above adapter as the adapter for the list
lstTest.setAdapter(arrayAdapter);
//Set the click listener for the list
lstTest.setOnItemClickListener(new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView adapterView, View view, int item, long arg3) {
Intent intent = new Intent( HomePageActivity.this, PromotionActivity.class );
finish(); startActivity(intent); } } );
my alerts class..
public class Alerts {
public String cityid;
public String promoterid;
public String promoshortcontent;
public String promocontent;
public String promotitle;
public String locationid;
public String cover;
@Override public String toString() {
return "City: " +cityid+ " Promoter: " +promoterid+ "Short Promotion: " +promoshortcontent+ "Promotion: " +promocontent+ "Title: " +promotitle+ "Location: " +locationid+ "Cover: " +cover+ "$"; } }
anddddd my alertsadapter class..
public class AlertsAdapter extends ArrayAdapter<Alerts> {
int resource;
String response; Context context;
//Initialize adapter public AlertsAdapter(Context context, int resource, List<Alerts> items) {
super(context, resource, items); this.resource=resource;
} @Override public View getView(int position, View convertView, ViewGroup parent)
{ LinearLayout alertView; //Get the current alert object Alerts al = getItem(position);
//Inflate the view if(convertView==null) {
alertView = new LinearLayout(getContext());
String inflater = Context.LAYOUT_INFLATER_SERVICE; LayoutInflater vi;
vi = (LayoutInflater)getContext().getSystemService(inflater);
vi.inflate(resource, alertView, true); } else {
alertView = (LinearLayout) convertView; }
//Get the text boxes from the listitem.xml file
TextView textPromo =(TextView)alertView.findViewById(R.id.txtPromo);
TextView textPromoter =(TextView)alertView.findViewById(R.id.txtPromoter);
TextView textLocation =(TextView)alertView.findViewById(R.id.txtLocation);
//Assign the appropriate data from our alert object above
textPromo.setText(al.promocontent); textPromoter.setText(al.promoterid);
textLocation.setText(al.locationid); return alertView;
} }
Android :: Specify I.D In Droid To Create List?
Aug 10, 2009Can some one tell me how can i specify I.D in android ? actually i want to create List . I add the following code in main.xml file. But i do not know where i should specify @android:id /list. Can some one tell me where i should specify it? code...
View 3 Replies View RelatedAndroid :: Merge Name And Tell Columns Of Cursor To Show Both In One List View?
Nov 5, 2009I am making an app where I need to filter the contacts as user types.. I m using autoTextView and I am able to successfully query the contacts db for either tel number or name.. However while displaying I can either display name or tel number only as simple cursor only lets me match one list view with one column.. How do I merge the name and tel number column of the cursor so that both of them can be shown in one list view.
View 2 Replies View RelatedAndroid : Way To Create A List Of Integers In XML For Droid?
Apr 24, 2010I would like to create a list of Integers in the /res folder of an android project. However, I want those integers to point resources in /res/raw. So for example, I would like something like this...
View 3 Replies View RelatedCreate Static Array Of Objects In Java?
Jan 1, 2014I'm a little new too java programming. Im looking for a means to store groups of static data..so I understand these simple string arrays...
[HIGH]
private static String[] names = new String[] {
"aidanmack",
"johnsmith"
[code]....
But can I not combine that into an array of objects? somthing along the lines of what you would do with json? like...
[HIGH]
private static array[] multi = new array(){
{"name":"AIDANMACK","age":"30"},
{"name":"johnsmith","age":"31"}
}
[/HIGH]
Android :: Contents Of List View - Using A Cursor Adapter - Are Not Updated Refreshed
Aug 26, 2010I have a list which shows data from a database using a cursor adapter. Using Menu option I am updating my database (inserting more rows deleting existing rows). When Menu operation completes, I want contents of list should show updated contents.
I have tried using cursor.requery(); (or explicitly querying cursor again) and using adapter.notifydatasetchanged(), but with this list of contents are not updated.
How can I refresh the contents of the list.
Bluetooth Devices - Array List Isn't Populating
Dec 8, 2013I'm writing a small program in which I'm using my phone to detect Bluetooth devices. I'm currently stuck on populating an array list with the names of all the device names that have Bluetooth.
Code:
Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
if (pairedDevices.size() > 0) {
for (BluetoothDevice device : pairedDevices)
mArrayAdapter.add(device.getName());
[Code] ...........
For some reason, the array list isn't populating. Also, how can I display the array list in a ListView
Android :: Custom List Cursor Adaptor Crashes At BindView On Emulator - Not On Phone
Aug 23, 2010I will try to be specific if I can - please be patient, first time asker and relatively new to programming on this platform. Apologies if this has been asked/answered before - please link it to me. I have searched up and down but find other unrelated (to me at least) problems.
The real puzzler for me is that my app is crashing on my emulator but when installed on my phone (via upload of apk to phone and then using an AppInstaller app from market) it works.
The crash comes from a NullPointerException at the numbered line in the following code snippet (my code) of a custom list cursor adapter.
CODE:....................
The following error dump is created.
CODE:..............
Curiously I have been happily programming and debugging away all day and out of the blue a long working and bug free portion of my app now throws up this error.
I suspect it might be a problem with the databases, but really not sure - nothing seems out of place there. Up until today I had a database with only one table - today I added a new table which also has a "_id" field as the name autoincrement key field, which I read in the docs was required for android list adapters (if memory serves). Having some experience in coding and some minor experience with databases, that seems like a bad idea to me but I am uncertain of if that is the problem and/or how else to do it.
The crash I am listing here does not display or make reference to the data in the other, new table. The cursor does not contain any query data from it. In fact if I rename the key field "_id" of the new table to something else (ie "_blah"), the crash remains.
Like I said, if I upload the apk to my phone, it works.
I have tried the following on the emulator:
- restarting adb (and eclipse) - no result
- uninstall from emulator - no result
- destory AVD profile and recreate - no result
I am developing this under the Android 2.1 SDK, and have been for the last few weeks. I have only ever had that SDK installed, I am yet to update to 2.2.
Not sure what else I can say here - hoping somebody here has experience enough to shed some light on it.
Without a fix to this, I can anticipate a very slow development process here on out (assuming I have to upload to my phone to test new code changes...).
Android :: Inserting Data Into Cursor?
Jun 23, 2009I'm looking for a way to insert data into a cursor that is separate from the SQL database it retrieves the rest of the information from. Is there any way to to this, or is there a different way to add more information to a list view item? What I'm trying to do is to use a date column for each entry in the list to calculate the number of days until that date (and then put that number in the list item). I know how to get the value, but I just cant find a way to put it into the list without it being in the cursor.
View 7 Replies View RelatedAndroid : Fill GridView With Data From Array
Nov 2, 2010I have one question. How can i fill GridView with data from String array?
My code for adapter is :
CODE:...........
Where tmpx is array with strings. But my app crashes, when i want to run activity.
LogCat error log:
CODE:................
Android :: Simple Cursor Adapter - List View - Binded To XML Document With Three Text Views
Mar 18, 2009I have table with 3 columns which is binded to an XML document with three text views.
CODE:........
Depending on the value store in the third column, I want to change the text color in R.id.c. How should, I go about with this.
This is what I have so far :
COD:...............
Android :: How To Retrieve Data From Cursor Class
May 11, 2010I need to know how to retrieve data from cursor. I need this because the ringtonemanager returns all the audio files in form of cursor object, I need to know how to retrieve the values.
View 2 Replies View RelatedAndroid :: Getting Updated Array Of Data From ListView / Adapter
Aug 10, 2010I must be missing something simple here.I've searched around but don't think my search query is touching on the right topics to yield results. Anyhow, what I'm after is running through the array of data I bind to a ListView after a "Submit" button has been clicked.
View 3 Replies View RelatedAndroid :: ListView For XML Data - Existing Array Or Database Cursors
Mar 16, 2009Where could I find any examples of rendering XML data in a ListView? i.e, the model is read from a XML file, not in an existing array or database cursors.
View 3 Replies View RelatedHow To Put Mysql Data In Array
Sep 4, 2012I wanted to fetch the title of an image which is saved in a mysql Db, I found out that you have to do this through Json, right now I am having a .php file:
PHP Code:
<?php
mysql_connect("localhost","xx","xx");
mysql_select_db("xx");
$q=mysql_query("SELECT title FROM field_title");
[Code]...
It outputs as follows:
Code:
[{"title":"titleone"},{"title":"titletwo"},{"title":"titlethree"}]
But now I am stuck, I want to put these titles in a simple arraylist but i don't know how to make the connection between the outputted data and the arraylist itself.
Code:
ArrayList<String> list = new ArrayList<String>();
for (??) {
list.add(string);
}
Is it possible to do this on an easy way?
Android :: Android List View Filtering Without Repeatedly Instantiating Array Adapters
Aug 5, 2010I have a ListView filled with twitter tweets. I made a custom Tweet class so I could store a special type number. So, I have the Tweet class and custom ArrayAdapter: Code...
View 1 Replies View RelatedAndroid :: Show Cursor Data In A Listview With Subsection Headings
Feb 3, 2010I have not found an example yet with a solution to the following task.
I have a SQLite database with two tables- BOOK and AUTHOR. I execute a query on the DB that uses a join and results in a cursor that looks like this. code...
New authors and books can be added to the database at any time, and I also need the user to be able to remove books, hence the [ ] checkboxes.
So i have two row layouts, row_author.xml & row_book.xml. I detect when I need to show a row_author subheading by seeing when the current author has changed compared to the previous row. But I have realized that the rendering of an Author Row will then move the cursor forward one row and jump over their first book.
Can anyone suggest a good approach to presenting data like this? Is there a much better way to do this?