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.

Android :: Populating child list in Expandable lists using dynamic multidimensional arrays


Android : Expandable Lists Having Multiple Child Items In A Single Row - Their OnClick Event

Jul 19, 2010

I could not figure out how to implement two basic functionalities with the expandable lists: 1. The onClick for the child 2. Using linear layout for the children, so that I can have multiple clickable items in same row under the parent item

Can somebody help me with some sample code for the above?

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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 :: Add Image In Expandable List In Parent / Customize Child In It?

Aug 30, 2009

How to add image in expandable List in parent in android ?

If possible how to customize the child in expandable list?

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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 :: Remove Parent Icon In Expandable List / Where To Customize Child?

Sep 5, 2009

1) I have made an customizable expandable List .

2) Where I can customize the child.

3) But in parent(Group ID) I want to change the default icon of the parent.which look like(>).

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Android :: Multiple Expandable Lists In A Layout

Jul 30, 2009

I want to have more than one expandable list within a layout. It appears that an expandable list in a custom layout must have an id of "@id/android:list". So, how could I have more than one if they would need to have the same id?

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Android :: Dynamic Lists Of Data In A Layout?

Nov 17, 2010

I want to display contact information in a custom layout. My app lets the user select a contact, then I retrieve key pieces of info on that contact (phone #'s, email addy's, etc). I want to display them to the user so they look grouped logically. Sort of like a series of tables, so phone numbers, then email addys, then organization, etc.

I have a table format that I've been using in a different part of the app where I know the exact number of rows I'm adding and I have defined styles for the rows already. I want to reuse those styles for this data, but android sdk won't allow for you to set the style attribute programmatically.

I could create the tables in code and set all the attributes the same as in my defined styles, but it seems like a lot of extra coding.

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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 :: 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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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 :: Change Properties Of Expandable List?

Jul 29, 2009

I'm using BaseExpandableListAdapter, and there is a drop-down button (looks like an arrow) on the left side for each parent item to indicate that you can expand that item to view child items. The question is: How can I change the properties of that drop-down button such as its position? I basically want to move it a bit lower in each parent item.

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Android :: How To Implement Expandable List In Phone?

Oct 29, 2010

I amm try to replicate the inbuilt contact app. how can i have a + button to add multiple phone and email? also i want the fastscrollview to be enabled in it

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Android :: Create List With Only Certain Items Expandable?

Jun 8, 2010

I am trying to compose a list with some items expandable and some single items. I wish to have it so that when either a single item or expandable list child is clicked, I can call an intent based on the text of the item.I suppose expandable lists would work, but is there a way to set items in an expandable list so that they don't have the expandable list icon? Should I use something other than a string array?What is the best way to do this?

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Android :: How To Update Expandable List View Values

Nov 20, 2010

I am using expandable list view in my layout which contain list of fitness activities i have done on that particular day. I can see all the list of activities when i initially open my Activity. But when i add new activities, i can not see new activities in my expandable list view. How can i see my new activities when i come back from other screens?

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Android :: Activity Contains Some Textviews At Top Then Expandable List View

Jun 2, 2010

I have requirement like this- my activity contains some textviews at the top then the expandable list view in the middle and a button at the bottom. my problem is when i clicked on
expandable list view the expanded list get accommodated in the space between button and expandable list view.

I wanted expandable list view to get expanded full and button should move downward according to the contains of the expandable list view. And i have used scrollview as a main layout.
thank you

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Android :: Expandable List Not Looking Properly In 2.1 QVGA / Resolve It?

Nov 24, 2010

I have developed an application for 1.5 and above which uses expandable list ,but when i test it on 2.1 QVGA emulator expandable list dosent look proper .
Also i have tried running sample Expandablelist1 ,but it also has same issue.
so can anyone tell me is this issue with emulator only?
if yes how to resolve it?

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Android :: Position Of Grouppostion / Childposition In A Expandable List?

Apr 7, 2009

How do I find the position of the item clicked in an Expandable List.

In a list view the listView.getPositionForView(v); is present which gives the position of the clicked item.

But in an expandable list how do i get to know the position of the grouppostion or the childposition

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Android :: Set Background Color Of Expandable List In Droid?

Sep 3, 2009

How to set Background color of expandable List in android

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Android :: Button And Expandable List On Single Activity

Jun 16, 2009

I want to customize my ExpandableList my issue is i need a button and expandable list on single activity can i achieve that as i have seen all the examples they all extends ExpandableListActivity not the Activity in which i can put all the widgets in one activity

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Android :: Want To Add Image Icon In Expandable List View In Droid

Aug 31, 2009

I want to add an image icon in expandable list view .I have seen the tutorial they have added only in child elements .Is there any other way to add image icon in parent.

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Android :: Load Data In Expandable List Adapter Through Scroll

Oct 2, 2009

How to load data in expandable List Adapter through Scroll .

Means I want to add data as per Scrolling in Run time.

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Android :: Code To Create On Click Event For Children In Expandable List?

Aug 5, 2010

I am playing around with this example.
http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/view/ExpandableList2.html

I cannot figure out how to attach a listener to the children elements so that I can trigger some action when the user taps on the phone number.

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Android :: Place Focus In Child View Of List Row?

Mar 12, 2009

I have ListView, where each row contains two edittext boxes. I'd like on list item selected(using Dpad) place focus on first edittext box. I tried the following code, but it does not work: ListView list = (ListView) findViewById(R.id.list); OnItemClickListener click_listener = new OnItemClickListener() {public void onItemClick(AdapterView<?> parent, View view, int position, long id){EditText box1= (EditText ) view.findViewById(R.id.box1); box1.requestFocus(); return ;} list.setOnItemClickListener(click_listener);}

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Android :: List Child Item Focus Change?

Nov 19, 2010

I have a list view which contains different numbers and i have a button below with the name "Call". The expected spec is to change the button background to blue, only if user clicks on list item, and if user clicks on some other views, i need to change the button background to white.

My work around for this issue:

I have set onfocusChangeListener() for the list live, but onFocusChanged() is getting called if next view gets the focus.

Expected result:

1) Background of the button should change to blue if user clicks on list child item.

2) Background of the button should change to white if user clicks on other views.

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Android :: Can I Make Part Of My Preferences A Dynamic List

Nov 17, 2010

I need to make a screen that will add options as the user clicks on another preference.

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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 :: Todo Lists / Task Lists / Evaluations And Reviews

Nov 8, 2009

I'd like to dedicate this thread specifically to the evaluations and feedback for various Todo's, Todo Lists, Tasks, Task Lists, Lists, etc.I'd like to keep this separate from Notepads as I've dedicated that to another thread ( Notepads and Notepad's that sync - Evaluations and Reviews ).Doing a search for Todo's and Tasks on the Android Market comes up with so many results. Rather than downloading and trying out so many, I'd like to know which ToDo's and Task Lists, etc. are recommended.I've been searching for ToDo lists and Astrid is frequently mentioned. Other sync or link to Google Tasks or sync with Google as well.Other ToDo / Task Lists? What are some ToDo / Task you've downloaded and/or experimented with? Please comment on other such productivity Apps. Please indicate if they
1) Offer Multiple Lists
2) Folders
3) Sync
4) Email
5) Offer other unique features

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Android :: Generating Key Strokes And DYNAMIC Selection Of List Items

Jul 2, 2009

I have two questions:

1. How do you programmatically generate key strokes? I found some tutorials where it says to use IWindowManager, but that doesn't exist anymore in 1.5. (And WindowManager doesn't provide any function to generate key strokes)

2. How do you programmatically select one item from a ListView? Is it possible to do it with the index of the list item (it's position in the list)

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Android :: Get String Array With Java Code From String Item List In Arrays.xml In Android ?

Oct 28, 2009

I want to get an array of strings reading from arrays.xml file we add in android values/ folder. Could any one kindly give a solution for this. Otherwise I will have to input each these entries in strings.xml and take them to java code using getResources()getString()

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