Android : Update Content After Selecting Item In Spinner
Feb 14, 2010
Its me again. I tried the last hours, how to change content of a spinner. ok, lets start from the beginning.
I have three spinners. They all have initial values. The first spinner is the main spinner and the other two spinners depend on the vale chosen in the first one. So i want to update the last two spinners after making a selection in spinner one. *edit: All spinners are on the same activity.
How can i achieve this? My problem is that i can only make changes in the spinners onitemselectadapter but thats a whole new class. I cannot reach the activity where my other spinners are.
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Mar 10, 2012
I have a simple spinner which has several number options. I want to just select a number and then it does some math to that number and outputs it in a text box. For some reason it's only doing math on the 1st entry in the list and if you change it doesn't update.
Code:
package placeorder.com;
import java.util.Random;
import android.app.Activity;[code].....
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May 25, 2010
I need to get an item's position in spinner knowing it's ID. I've tried to do it with Spinner and SpinnerAdapter classes but there are no corresponding methods there.
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Aug 30, 2010
I have two different activities in my project.I intend to pass data from one activity to another. (As per user interface, I select an item from The spinner in one activity and send it as text msg.) The coding for text msg is done in another activity i.e the second activity.I m successfully able to select the desired item from the Spinner but am not able to pass it as text message. to select the item from first activity. It functions well BUT HOW DO I CAPTURE/RECEIVE THIS In the second activity that will send it as a text message.
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Dec 10, 2009
How do I disable (gray out, make unselectable) an item in a Spinner? I tried calling View.disable() on the associated child of the Spinner, but it remains black text (not gray) and selectable.
There must be some way of showing but leaving unselectable certain items in a spinner, right? This is a standard "menu" behavior that goes back decades. Android permits it, right? I want the user to see that certain options are possible under certain circumstances even if they are impossible at the immediate moment...exactly the way items in the main Android menu-button invoked menu can be visible but unselectable.
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Aug 26, 2010
Is it possible to display particular entries in a Spinner list as disabled?
i.e. I want to always display a spinner with 4 entries (North, South, East and West, say), but I want to be able to disable any one of these so that is appears greyed out and not selectable.
Is this possible, or will I have to recreate the list each time, leaving out the invalid entries?
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Mar 11, 2010
I am a newbie coder and new to the SDK. I was just playing around with an app that i made. I wanted to know as to how to retrieve the item id of the selected item from the spinner when the spinner is re- populated.
For example, I created 2 spinners, if you selected item 0 from spinner1 then spinner2 will have a bunch of items and if you selected item 1 from spinner1 then spinner2 will have a different set of items. Now, my question is that when i select item 1 from spinner 1 then the items in spinner2 dont have different ids. So how do i differentiate from the two sets of data?
To illustrate,
User selected item 0 in spinner1 -> spinner2 gets data from array1 -> item 0 in spinner2 has id '0' and item text is "apple"
User selected item 1 in spinner1 -> spinner2 gets data from array2 -> item 0 in spinner2 has id '0' and item text is "oranges"
I know this sounds confusing but i hope the right people understood it..
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Mar 24, 2010
I had a EditText , a button and a spinner . When click the button , the spinner will add a new item with name you entered in the EditText. But here is the question, my adapter.add() method seems doesn't work...here is my code...
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Aug 2, 2010
How to get a selected item from a spinner in android?
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Jun 18, 2010
I created two Spinners to display the data in my application. In my first Spinner, the first item of the list is always displayed directly, but in the second Spinner nothing is displayed, even if I click on an item on the drop down view. Can anybody explain this behaviour?
Here is the code...
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Mar 5, 2010
I have a update view, where I need to preselect the value stored in database for a Spinner.
I was having in mind something like this, but the Adapter has no indexOf method, so I am stuck .
void setSpinner(String value)
{
int pos=getSpinnerField().getAdapter().indexOf(value);
getSpinnerField().setSelection(pos);}
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Jun 30, 2009
I am trying to get the selected item of my spinner that is populated and I am already seeing the values. when I try to use (String) s.getSelectedItem(); to get the selected item, I am receiving a handler exception on Logcat.
The spinner throwing the error is a 2nd spinner resulting from the 1st spinner's selected item (that works perfectly). In other words, user selects from spinner one and upon selection, populates spinner 2 (until here everything is fine). When trying to get the value of the selected row in spinner2 , I am receiving the error.
here's the main parts of my code...
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Jan 26, 2010
How can I use code to set a default item in a spinner drop down list
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Mar 22, 2010
I'm try to change text color and align item in spinner to center of it how can I do this
here is my code
String[] li={"1","2","3"};
final Spinner combo = (Spinner)findViewById(R.id.widget30);
ArrayAdapter<String> a = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item, li);
combo.setAdapter(a);
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Oct 10, 2010
I have a spinner with items, populated via ArrayAdapter. I want to change font style for some (not for all) of spinner items, both for spinner's combobox and listbox. I guess that I need to subclass something, but I don't understand what. How can I do that?
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Nov 21, 2009
Newbie question. I'm using a SimleCursorAdapter to populate a spinner from an SQLite table, as shown in the Android dev docs. Code...
I've set up a listener, but I can't figure out how to get the selected item text, it pulls up the SQLiteCursor, not the actual text in the spinner.Code...
Google turns up the question on several message boards, but no answers, so it appears to be a common newbie question. It may be painfully obvious to some.
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Jun 6, 2010
I have a spinner, which mostly works. If a user selects one of the items in it, the 'onItemSelected' routine catches it just fine.
But if a user clicks the same spinner, but does not change from the already visible item that it's currently displaying, the 'onItemSelected' routine just ignores it, and the logs show:-
WARN/InputManagerService(577): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@437948b0
I there anyway to capture someone doing this? The idea is that my spinner contains a list of names, and when a user selects one from the spinner, it gets added to a listview.
I could just add another button to get the name from the spinner, but, screen-space is already lacking and I'd rather not add anymore content.
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Aug 17, 2010
As the title says, what is the method to access which item is displayed in an Android spinner, so I can have multiple spinners, then wait on a button click?
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Jun 3, 2010
I am trying to have my program grab web content based on "Spinner" selection. I have a "Spinner" and a "button" to execute selected item.
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Oct 22, 2009
I've a ListView with items containing information about places with a rating and the distance to the current location.
The items are sorted into groups:
Group 1: within 500m
Group 2: 500m - 1km
Group 3: 1km - 1.5km
Withing these groups the items are sorted by their rating.Now I put out these items via my custom adapter (extension of BaseAdapter) into the ListView, which works perfectly.
However, what I'd like to do is to put a separator before the each first item of each group. This separator can be a TextView saying e.g. 500m - 1km followed by all the ListView items in that group. Any idea on how to realize this?
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May 16, 2010
This might just be me being picky, but... after the update yesterday, when I go to select multiple contacts to send a text to it now gives a list of EVERYONE in my phone book and facebook friends listing their home/email/cell phone numbers all individually, which caused the list to go from about 50 names to scroll through to over 300. Now before the update when I went to select multiple contacts to send a text to it was just the list of the people who's phone numbers I have in my phone. (BTW, this is the stock messaging feature, not an app or any of that). I've looked for hours for a setting to only show phone numbers and not to show facebook contacts in the text selection but no luck at all. Can you guys help a semi tech savvy guy out here?
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Jun 14, 2010
I am trying to populate a TextView based on the current selected options in 3 Spinner(s) but cant seem to figure out how to retrieve the selected values from the Spinners to invoke the update function with.
Here is my current code (quite messy but I'm just learning Java,
public class AgeFun extends Activity {
private String[] dayNames;
private String[] yearArray;
private final static int START_YEAR = 1990;
private static TextView textDisp;
private Button calcButton;
private static Spinner spinnerDay, spinnerYear, spinnerMonth;
private static ArrayAdapter<?> monthAdapter, dayAdapter, yearAdapter;
private int year, month, day;
/** Called when the activity is first created. */
@Overridepublic void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
year = 2000;
month = 1;
day = 1;
textDisp = (TextView) findViewById(R.id.textView1);
calcButton = (Button) findViewById(R.id.button);
calcButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// Perform action on clicks
AgeFun.updateAge(year, month, day);
// Month spinner
spinnerMonth = (Spinner) findViewById(R.id.spinnerFirst);
monthAdapter = ArrayAdapter.createFromResource(
this, R.array.monthList, android.R.layout.simple_spinner_item);
monthAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerMonth.setAdapter(monthAdapter);
// Day spinner
dayNames = new String[31];
for(int i =1; i <= 31; ++i)
{ dayNames[i-1] = Integer.toString(i);
} spinnerDay = (Spinner) findViewById(R.id.spinnerSecond);
dayAdapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_item, dayNames);
spinnerDay.setAdapter(dayAdapter);
// Year spinner
yearArray = new String[40];
for(int i =0; i < 40; ++i)
{ yearArray[i] = Integer.toString(START_YEAR+i);
} spinnerYear = (Spinner) findViewById(R.id.spinnerThird);
yearAdapter = new ArrayAdapter<CharSequence>(this, android.R.layout.simple_spinner_item, yearArray);
spinnerYear.setAdapter(yearAdapter);
updateAge(2000,1,1);
}private static void updateAge(int year, int month, int day) {
Date dob = new GregorianCalendar(year, month, day).getTime();
Date currDate = new Date();
long age = (currDate.getTime() - dob.getTime()) / (1000 * 60 * 60 * 24) / 365;
textDisp.setText("Your are " + Long.toString(age) + " years old");
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Dec 15, 2009
My app have a spinner and also have reset button. how to update the values while clicking on button?
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May 20, 2010
I use this code to generate a spinner in my app:
code:.........
On my device (Motorola Milestone) and in the emulator this looks like the standard gray spinner widget.
On of my colleagues uses a Motorola Backflip and on his device the Spinner is black. Now its very hard to read the font in the spinner.
What do I have to do to use my own view for the spinner? I don't mind to have the gray spinner on all devices, but it should always look the same on all devices.
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Jun 9, 2010
I have an xml layout file which contains a few widgets including a Spinner
I want to display a list of strings in the spinner, the list is generated at runtime as a result of a function so it can not be in arrays.xml.
I tried doing:
CODE:...........
But this crashes my application.
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Sep 16, 2010
I have a list (ListView) which displays news items. They contain a image, title and some text. The image is loaded in a separate thread (with a queue and all) and when the image is downloaded, I now call notifyDataSetChanged() on the list adapter to update the image. This works, but getView() is getting called way to often now, since notifyDataSetChanged() calls getView() for all visible items. I want to update just the single item in the list. How would I do this?Problems I have with my current approch is that the list is slow and I have a fadein animation on the image which happens every time a single new image in the list is loaded.
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Aug 28, 2010
I have list of items ion my activity which I load dynamically, item after item. Initially I load "lightweight" version and when processing is done I want to update the item with new information. Like set some text or replace an image. That means I need to update what ListView item is displaying after Adapter#getView already returns. Of course I don't know if user is actively scrolling and this item is still visible or has been scrolled out ot view. The only thing I can think of is to extend View so it performs some operations on it's own thread and updates itself when done,but will it work?
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Jan 19, 2010
How do I update individual row in listview?
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Jan 25, 2010
I have a spinner 'aperture' set up with a list of numbers, and a spinner 'mode' with two options. When a button is pushed I need a calculation to run using various inputs, including the current selection from 'aperture' and a value derived from 'mode'. How do I call the value of a spinner so I can use it in a calculation?
Also, how do I use the spinner 'mode's selection to set this other value before implimenting it in the calculation? To be more specific, if the spinner is set to Small then the value I use in the calculation is 0.015, whereas if Large is selected I need to use 0.028
My other inputs are EditText views, so right now I am set up like this:
CODE:............
That is not the actual equation, it is just a test to make sure everything connects properly. How would I call the value of spinner 'aperture' and the Small/Large spinner 'mode'
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Jun 20, 2012
i have a listview (i use a custom adapter) with 10 rows and each row has edittext how will i update the content of edittext on the third row after i edit the content of edittext in the first row.
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