Populating Listview From Database Query?

Nov 5, 2012

I'm populating a listview from a database query and I can't seem to figure out what is going wrong.

As you will see in the image, the query is returning some sort of id. I've done a ton of googling, but the problem is that I don't know what to search!

populating listview from database query?


Android :: Populating Spinner From SQLite Database

Feb 3, 2010

I'm attempting to make a dynamic drop down that will be filled by a SQLite table. I have a Cursor object which I can pull the data I need from. I've been able to accomplish loading the values into the drop down with the code below:

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

My problem is that I need the a selection from the drop down to also contain the RowID of the item selected. I need to be able to select one item and have access to the value of that item in the back end. For example, think of a drop down in HTML. Each drop down selection has it's own hidden value that is pulled. I need this value to be hidden for me to allow me to know which ID they choose.

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Android :: Query SQLite Database

Jun 2, 2010

I successfully created the Database and inserted a row however I cannot Query it for some reason. My Droid crashes everytime.

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

I get this exception

No such column: value: , while compiling: SELECT DISTINCT value FROM mainTable

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In android, How can I query the name of the MMS sender and text of the MMS from MMS database? For SMS, there are these 2 columns for that: Sms.PERSON_ID and Sms.Body. But what is the equivalent columns in MMS Table?

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I wanted to remove duplicates from the database. In my db duplication can be defined by combination of multiple columns. For example :............

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Android :: Efficient Way To Make Database Query Faster ?

Sep 3, 2010

In my android app i need to get 50,000 database entry(text) and compare them with a value when the activity started(in onCreate()).I am doing this with the simplest way : i get the whole table from db to a cursor.However this way is too laggy.Are there any other way to do it more effective?The app is "scrabble solver" that is why i am not using WHERE close in my query (Take the whole data annd compare it with combination of the input letters).At first i was using a big table which contains whole possible words.Now i am using 26 tables.This reduced the lag and i am making database call on a thread that solved a lot problems too.It is still little bit laggy but much better.

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Jun 5, 2009

Can you please tell me how can I query all phone numbers of all Contacts in the Database? Where can I find some examples for that?

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Android :: Android ContentProvider Database Query Multiple Tables

May 7, 2010

I'm writing an RSS reader for Android. I've faced a certain difficulty which the problem I can't resolve since databases aren't my expertise.. So i figured out maybe one of you could help me out! I currently have 3 tables (Categories, links and feeds). My goal is too link a feed to multiple categories. Therefor I'm using a Link table. My databases is an Android ContentProvider (sqlite) and looks like the following:

| Categories | | Links | | Feeds |
|------------| |---------| |-------|
| _ID | | Category| | _ID |
| Title | | Feed | | Title |
| URL |

I currently wrote the following code in my FeedListActivity to retrieve a list of links and their feeds.

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

Now my question:

I was wondering how I could optimize this database layout, code or query so I would get my entries in a more efficient way. Because i believe this link table or the query to retrieve links isn't needed! Or am i doing this the correct way?

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Searching SQLite Database And Listview?

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searching from database on a listview. here is my sample code. i got no problem in getting all rows from database.

PHP Code:

public class Namelist extends Activity {
ListView listView;
DbManager db;

[Code]....

That's all on how to get the content of my database. my question is "HOW CAN I GET THE SELECTED RECORD IN A DATABASE SHOWING IN LISTVIEW USING LIKE STATEMENT SEARCHING FROM FIRSTNAME OR IN A LASTNAME"

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Android :: SQLite Query - Select Query With Between Clause

Sep 29, 2010

I want to run this query in Android Application :

code:.......

My DB schema

code:..........

Here is the function -

code:...........

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Android : Getting Stored Data From My Database Into ListView

Jun 22, 2010

package one.two;

import java.util.ArrayList;
import java.util.List;

import android.app.ListActivity;
import android.database.Cursor;
import android.inputmethodservice.Keyboard.Row;
import android.os.Bundle;
import android.view.Menu;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView; Code...

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I want to retrieve data from the existing sqllite and query it and show the values in listview. my sqllite db has four columns naming emp id, emp name, salary, designation. i want to show the list of employees in a listview and on list item click query from db and by sending that particular emp id and show the name, salary and designation in the textviews in another screen.

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Android :: Binding Data From Database To Checkbox In ListView?

Oct 1, 2009

I'm trying to bind data from my SQLiteDatabase to a ListView. I'm currently using a SimpleCursorAdapter to fill in my ListView. Unfortunately this doesn't seem to work with setting a CheckBox's checked attribute. This is how I do it now; instead of changing the CheckBox's checked status the adapter is filling in the value to the text argument, so the value is displayed right of the CheckBox as text.

Java:
setListAdapter( new SimpleCursorAdapter( this, R.layout.mylist, data,
new String[] { Datenbank.DB_STATE, Datenbank.DB_NAME }, new int[] { R.id.list_checkbox, R.id.list_text } ) );

mylist.xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/LinearLayout01"
android:layout_width="fill_parent" android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android" >
<CheckBox android:text="" android:id="@+id/list_checkbox"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:checked="false" > </CheckBox>
<TextView android:text="" android:id="@+id/list_text" android:layout_width="wrap_content"
android:layout_height="wrap_content" > </TextView> </LinearLayout>

The field in the database is of course of type boolean and I've also tried to assign an id to the checked field to fill the value in.

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Mar 25, 2010

I am trying to populate a ListView in a separate class with data taken from a SQLite database held in another class. What would be the easiest way to do so?

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Android :: ListView For XML Data - Existing Array Or Database Cursors

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Android :: How To Display List Of Images In Listview From Database Using Droid

Aug 9, 2010

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...

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Feb 18, 2009

I've built an application that loads XML from a server, then creates a list of items and with that I create and adapter that I set with setListAdapter(my adapter);

The problem I'm having now is that creating the list and adapter takes time, so I was thinking on creating just like 20 entries and populate the list, then create the rest on runs background or maybe when the person gets to the bottom (like gmail application).

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Aug 19, 2010

Does anyone know of any tutorials on populating a Mapview using an overlay at a specific point? e.g adding a marker at a specific lat / lng on your mapview?

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Android :: Populating Custom Layout From Xml Resource

Aug 8, 2010

I have created a custom list item layout just like in this article http://developer.android.com/resources/articles/layout-tricks-efficie....

Each list item has icon, title and summary.

I would like to declare an xml resource that would provide data for that list. Just like you use <string-array> to populate the list using ArrayAdapter<String>.

The simple ArrayAdapter<String> can be populated from:

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

I need each <item> to have icon, title and summary. Somewhat similar to:

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

I would use <menu> but menu doesn't have summary if I'm not mistaken.

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Bluetooth Devices - Array List Isn't Populating

Dec 8, 2013

I'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

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Android :: Using Progress Bar Ends Up In Not Populating List View

Jul 26, 2010

I am using a progress bar in android, so that till my data is loaded, user is getting a proper feedback of what is going on.

The code for the bar is below:

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

The setSelected() method is inserting data into an array list, and then creating an array adapter and then using a list view to show those items. so when I put the setSelected() method in progress bar, it shows the loading circle, but once loading is done. Nothing is displayed in listview. But if I take out progress bar code (thread and run method), and simply call setSelected() method, the listview successfully declares the data. so far it concludes that the progress bar code is doing some thing...so wanted to know am I missing something to add in or take out from the code. I need to the show progress bar as I am reading data from online source and it takes time , which may make user uncomfortable.

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Android :: ListAdapter Populating Image (Icon) Source

Jun 7, 2010

I'm populating a list from the DB and I have a image field in the DB which contains a URL to a image file.

ListAdapter adapter=new SimpleCursorAdapter(this, R.layout.row, constantsCursor,
new String[] {"title", "subtitle", "image"}, new int[] {R.id.value, R.id.title, R.id.icon});

However, the other fields are populated, but the image remains empty. Why?

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Android :: Populating Child List In Expandable Lists Using Dynamic Multidimensional Arrays

Jul 26, 2010

I am using a simple expandable list that is populated by two arrays ( group array for the groups and a multi dimensional children array for the child). The arrays are built dynamically in the program and some group items have more children than others. So I end up defining the highest number as the array size for the multidimensional child array. After populating the child array, some positions are left null, as there are no values for those group items (explained above). When I associate this with the expandable list adapter, the getChildView method throws a nullpointer exception when it comes across a position in child array that does noto have value. I have two questions:
1. Can I make the base adapter skip the shildview method if the value in that child is null? The current implementation of getchildView method has to return a view and even if I suppress the nullpointer exception, it adds a blank element in the child position in the list.

2. Is there a better way of associated multidimensional arrays that are populated at run time? The current set of examples only use hardcoded string array values. Even the cursor adapters examples use very basic setup.

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Android :: Connect To Remote Database Online Database

Nov 8, 2010

ive been looking for a week now i need some help connecting to a remote database...i want my app to get data out of the database and update the database.ive tried this http://www.helloandroid.com/tutorials/connecting-mysql-database but i dont understand it.

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Android :: Advice On First Application (loading Data / Populating Data)

Jun 23, 2010

to start with I've gone through the entire notepad tutorial, I'm a professional game programmer who has some extra time. (though most of my time has been in C++, I did take a year or two of Java classes in college, and remember some of it). I'm not sure the site is a good site to ask questions like this.. If someone has a Forum that might be a good place to ask these newbie questions, please feel free to point me in the direction. I've examined a few of the samples, and think I've a grasp of what I want to do. I've a three to four project plan for some Android releases to sharpen my skills, but since this is my first project and I have never really developed for a mobile phone or the android before, I'd like to make sure I have a solid plan.The first project is an example of the license plate game, however I want to do a few things to change it. Heck maybe when I'm done it'll become a bingo style game, with bluetooth connectivity, you never know. The base idea is I want to offer a list of states, with checkboxes next to them. so to do this, I'll be starting with a Linear List layout similar to the note pad example, and then have a row that is only a Checkbox. I can use text and call strike through if it's been checked off. Perhaps offer an option to not show them if they are checked.

But I want the list to be generated from a set of lists. Maybe all of America's states, maybe reasonable American states (no Hawaii, no Alaska) maybe a North American list, (add in Mexico and some Canadian provinces), a European list, who knows. I'd probably have to have a pop up window that lists all of the lists I suppose using a radiogroup of some sort. So then as far as the data, after weighing options I think best solution is to make a database with two fields, "checked" and "name".I figure I can use the menu for most of the user interaction (aside from clicking on stuff we want to check off) with maybe a few context menu items, I understand how to make all of those already so I should be good. The question I have is what is the best way to populate the lists? Should I create raw data, and have different files for all the lists? Or is there some other way to do this? I've seen this done on the searchable dictionary, but I'd like to hear what people who have actually generated the data like this before. In addition is there an easy way to look at the sql database these applications create, or do you have to run searches on them and output the data? Finally any other suggestion or advice? I definitely want to try to get something like this on the market so I can see the full life cycle and see if anyone actually likes it. (luckily there's not a plethora of them already) but I also want a few people to look over my code if they're willing when I'm done to make sure I've done this right or at least not missing any basic mistakes.

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Android :: Populating View Flipper Child View

Aug 2, 2010

I am trying to populate a ViewFlipper with a ListView when a certain button is clicked...but I only get a NullPointerException for lv.setAdapter(new ArrayAdapter<String>(this, R.layout.specialeffectsview, specialEffects)); To be honest I don't really know how to do this, I just learned about the ViewFlipper today and I haven't fully understood how to use it yet. If anyone could help me find how what I have done wrong, that would be great.

Here is the code I use:
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); String[] specialEffects = getResources().getStringArray(R.array.special_effects_array); lv.setAdapter(new ArrayAdapter<String>(this, R.layout.specialeffectsview, specialEffects)); lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE); }

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Android :: Populating A Spinner From Another Spinner Dynamically

Jun 21, 2009

I am trying to populate a spinner depending on another spinner's selected item, my code is the following:

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

what is intriguing me is that the first spinner onitemselection works perfectly ( I can see the values in LogCat) then when I change selection of the 2nd spinner I am gettging an error on this line: String selected= (String) s2.getSelectedItem(); So the compiler gets insisde then onItemSelected function of the 2nd spinner but throws an Handler exceltion on s2.getSelectedItem()

why? it works perfectly for the 1st spinner.

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