Android :: Programmatically Expanding - Collapsing Items Of An ExpandableListView

Aug 6, 2010

This should be a very simple thing, but it's driving me crazy and currently one of the older bugs of my app. Given an ExpandableListView I want to collapse all the groups but the last one and expand the last one. The code below doesn't work (basically seems to do things at random).

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

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Android :: ExpandableListView Not Expanding/collapsing When Using A Group View With A Checkbox

Jun 10, 2009

I'm trying to implement an expandable list view where the group view contains a label and a checkbox, visually represented below (the v and > are the expand/collapse icons, the [x]/[ ] a checked/unchecked.

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Android :: Disable Collapsing Of ExpandableListView

Aug 11, 2010

The default behavior of ExpandableListView is to collapse a group when its header is clicked. Is it possible to prevent this from happening?

I've tried: Setting OnTouchListener on the list. This interferes with scrolling. Setting an OnGroupClickListener on the list (in onCreate()). This works for all clicks after the first.

Why might the OnGroupClickListener miss the first click?

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Android :: How Do I Remove Expandable Arrow From Some Items In ExpandableListView?

Feb 22, 2010

How do I remove expandable arrow from some of the items in ExpandableListView? Also is there way to customize this arrow, move it to another place in the item?

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Android :: Can Put A ListView Into A ScrollView Without It Collapsing

Aug 16, 2010

I've searched around for solutions to this problem, and the only answer I can find seems to be "don't put a ListView into a ScrollView". I have yet to see any real explanation for why though. The only reason I can seem to find is that Google doesn't think you should want to do that. Well I do, so I did.

So the question is: How can you place a ListView into a ScrollView without it collapsing to its minimum height?

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Android :: TextView Height Not Collapsing

Sep 30, 2010

I have TextViews in a View that are dynamically populated.  But even when there's no text in them they still seem to take up space, specifically height, even though the TextView and the parent have layout_height set to wrap_content.  Coming from HTML land, I would expect them to collapse.  Even if I set them to invisible, they still take up room.  I've tried a LinearLayout and a RelativeLayout.  How exactly do you get them to go away without removing them altogether?

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Samsung Captivate :: Way To Have Single Folder Show Received Items / Sent Items Combined?

Jul 21, 2010

Had no problem getting my phone to play nice with our exchange server at work and emails are coming/going fine.

However, there are some configuration items I have a big issue with as it relates to the 'look' of the email (coming from a BlackBerry).

1. Is there any way to have a single folder show my received items and sent items combined? My BB had this and it was very useful.

2. How can I edit the way my folders are displayed at the top horizontal bar? The sidescrolling folder display is awkward, it puts my inbox first (good) but then all subsequent folders are listed alphabetically; it pays no attention to their order on my desktop and also shows sub-folders of other files. Any way to change this?

3. Is there a way to change the way emails show as unread? The difference b/n read and unread is only a shade of grey, and difficult to see outside.

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Android :: Expanding The Status Bar

Oct 1, 2010

I am creating an android app, and in the app I would like to have a button that expands the status bar. When I was thinking up the design for the app it seemed like a simple task like that would be, well, simple. But I come to find out that the StatusBarManager is not part of the public API? I can now not add functionality to an app that is clearly available just not in the public api. Is there another abstract way of expanding the status bar?

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Android :: ListView Is Not Expanding As Intended

Sep 9, 2010

My scenario is like this:

CODE:........

The problem I have is that I can't get my ListView to get the right height that I want. I'll add a couple of components with my custom BaseAdapter class and everything there works as intended. But when i then debug my application i can only see 1,5 out of 3 components in the list and the rest is hidden futher down in the ListView. But how can i make my ListView calculate how many components i have and get it to show all my components direcly without having too scroll down.

Another thought is if i could populate any other kind of View with my BaseAdapter? Because the only reason I'am using ListView is because of the setAdapter() method.

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Android :: Expanding The Size Of Virtual Device

Dec 17, 2009

On a relatively new emulator image (AVD) I have about 40mb of free space. How can I expand this? I tried setting the disk.cachePartition.size option, but it didn't seem to have any effect.Just to be clear.I'm talking about the "Internal phone storage" size, not the SD Card size.

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Sprint HTC Hero :: Expanding Weather Database

May 1, 2010

The Hero's native weather widget contains a pretty limited number of cities. On my old WinMo phone, there was a way to expand the database of cities by modifying some Manila files. Is there a similar course of action for Android phones? I perused the files on the Hero (ROM and SD) but didn't see any obvious candidates to change.

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Sprint HTC Hero :: Expanding Micro SD Storage ?

Apr 21, 2010

Looking at greatly expanding my SD storage. It is clear that the Sprint Hero requires an SD device that meets the SD 2.0 specification. That is a given.

The question I have is about SD speed (class) and size (up to 32GB max).

I am wondering if there is noticable speed difference between Class 2 and Class 6 cards on internal or external transfers? Where do we see any difference? Internal - such as photo or file transfers between folders on the card? External - file transfers to and from the SD card set up as a USB device?

Then the possible variable (if it is) of card size? I am still running the stock 2GB card that came with my Hero. I want to go to 16GB. Does "size matter"? ---

Anybody run any experiments to measure speed and function? Photos, files, etc?

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Android :: LinearLayout Not Expanding Inside A ScrollView

Apr 8, 2010

I have a LinearLayout inside a ScrollView that has android:layout_height="fill_parent", but it doesn't expand to the full height of the ScrollView. My layout looks something like:

CODE:........

I can see that the LinearLayout doesn't expand the full height of the ScrollView because in Eclipse in Android Layout Editor, if I select the ScrollView (in the Outline panel) it is highlighted with a red border that fills the screen to the bottom but when I select the LinearLayout its highlight doesn't expand to the bottom of the screen. How can I get it to do so?

The effect I'm trying to achieve is to have some text and a button below it (inside the LinearLayout in level 4 there's just a button). The text can be big enough to need a scrollbar, in which case I want the user to have to scroll down in order to see the button. In case the text is not big enough for a scroll bar, I want the LinearLayout containing the button to stick to the bottom of the screen.

At first I thought I shouldn't post the full XML because it's usually a turn-down to see a huge chunk of code in a question. However, it seems it might be necessary, so here's the full layout.

CODE:........

At the moment I have resorted to android:layout_gravity="bottom" on the problematic LinearLayout, which makes the button stick to the bottom of the screen no matter what. But that also makes the text stick to the bottom of the screen, which is not exactly what I was after.

Update: scratch that, android:layout_gravity="bottom" makes the ScrollView unable to, well, scroll.

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Android :: Expanding The Status Bar From An App - Permission EXPAND_STATUS_BAR?

Feb 19, 2010

For good usability in an app that I'm developing I would like to expand the status bar to show the user the first time that there is more information to be found on the expanded status bar. (The user will run several apps at the same time, and background services will post notifications. The expanded notifications link back to several the apps/activities that the user is running. )

I've been searching for a while now, but the only thing I could find was: http://developer.android.com/reference/android/Manifest.permission.ht....

I'm looking for a code example on how to expand the status bar.

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Android :: Displaying Virtual Keyboard Without Expanding EditText

Jan 28, 2010

I want to display keyboard when my app gets started. I know we can get Virtual Keyboard when clicked on EditText field, but I want to show Virtual Keyboard without clicking on EditText.

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Android :: Expanding Overlay Marker On Google Maps?

Jul 20, 2010

I can draw overlay items onto google maps just fine, an image that looks like:
_____
| |
______
/

Where the "/" part is the "pin" that marks the lat/lon on the map and a picture in the middle of it. My question is, is there any way to expand this when the user clicks on it? I'll of course have to change this to some kind of dialog or layout and change it when it gets clicked.

I want to have it smaller like that with just an image when not clicked on, but when it is clicked on it expands over like a second to:

--------------------------------------
| <image> <buttons> |
| <buttons> |
| <some info here> |
| |
--------------------------------------
/

Is this possible?

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Android :: Expanding ListView Custom Component With Button Click

Nov 5, 2010

I'm developing a small application in with a list view filled with a compound component. This component has two text view and one button inside. One of the text view is invisible and when the button is clicked it should appear. I can show the list but i can't make the textview visible when the button is clicked. Here is the xml of the component: And this is the ArrayAdapter that fills the list:

public class AddressAdapter extends ArrayAdapter { int resource;
RelativeLayout placeView;
EditText addressText;
public AddressAdapter(Context _context, int _resource, List _items) {
super(_context, _resource, _items);
resource = _resource;
} private OnClickListener buttonClick = new OnClickListener() {
public void onClick (View v) {
int i = placeView.findViewById(R.id.stub_import).getVisibility();
visibility(i);
} };
private void visibility(int i) {
// TODO Auto-generated method stub switch(i) {
case(View.GONE): { addressText.setVisibility(View.VISIBLE);
} case(View.VISIBLE): { addressText.setVisibility(View.GONE);
} } }
@Override public View getView(int position, View convertView, ViewGroup parent) {
Item item = getItem(position);
String name = item.getName();
String address = item.getAddress();
if (convertView == null) {
placeView = new RelativeLayout(getContext());
String inflater = Context.LAYOUT_INFLATER_SERVICE;
LayoutInflater vi = (LayoutInflater)getContext().getSystemService(inflater);
vi.inflate(resource, placeView, true);
} else { placeView = (RelativeLayout) convertView;
} TextView nameText = (TextView)placeView.findViewById(R.id.placeNamwView);
Button button = (Button)placeView.findViewById(R.id.Button01);
addressText = (EditText)placeView.findViewById(R.id.placeAddressText);
button.setOnClickListener(buttonClick);
nameText.setText(name);
addressText.setText(address);
return placeView;
} }

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Android :: How To Find Culprit File In Droid Project Even After Expanding Main Folder

Jul 9, 2010

The side bar in eclipse shows a red cross on the title of my project folder but there are no such signs in the directories below it in hierarchy. In which particular file does error exist? How can I know that

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Android :: Xml Parser With Expandablelistview

Oct 27, 2010

I need to implement an xml parser and the parsed result into an expandablelistview.

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Android :: ExpandableListView Won't Redraw

Jul 29, 2009

I have an expandable list view with a static array for the group data and an SQLite database for the child data. It is implemented with the BaseExpandableListAdapter and works great, except, when I edit the database to delete or add children to the list I do not see the changes onscreen. It looks like I can use the registerDataSetObserver method to notify the adapter and expandable list of a data change. What I have to do in the callback to make Android redraw the list after data changes is what I need to know. Can I do it? Documentation on this part of the SDK is a bit sparse and expandable list view example code is not a good match. Can anyone offer advice on how to use a DataSetObserver? It feels like I have to switch over to a Cursor type adapter.

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Android :: Set ChlidDivider In ExpandableListView?

Dec 15, 2009

This is my ExpandableListView

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

When I execute this in emulator, green(childDivider color) is all over the place.

It seems if childDivider is ColorDrawable, it has no bound.

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Android :: Filter In ExpandableListView?

Mar 18, 2010

I have an ExpandableListView with several groups and each group contains several children. I want to make this list searchable, just like a regular list view. I have a SimpleCursorTreeAdapter (mAdapter) for this expandlable list.

I tried to use the built in list filter using:

CODE:.......

The above code does not work for filtering.

How can I implement the search/filter functionality?

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Android :: Animating The ExpandableListView?

Sep 17, 2010

Is it possible to animate the expanding and collapsing of the groups in a ExpandableListView.

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Android :: Onchildclick In ExpandableListView?

Jun 17, 2009

I need a solution how to get the OnChildClick working for my ExpanableListActivity.

when starting of this project the Listener was working, but now i get nothing out of it?

i tried setting the listener through: "getExpandableListView().setOnChildClickListener(this);" at several point, but it isn't responding.

Here's the source code:

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

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Android :: LinearLayout In ExpandableListView

Jul 18, 2010

I want to inflate a childView of ExpandableChildView component.

Code:.............

Where linearOpt is a vector that contains a lot of LinearLayout objects that I have instantiated.

CODE:..

This is R.layout.itemrow xml:

But I received this error:

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

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Android :: Expandablelistview Can Not Use NotifyDataSetChanged()?

Oct 20, 2010

I want to refresh my expandablelistview, but it seems there is no way to use notifyDataSetChanged()? how can i refresh my expandablelistview?

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Android :: ExpandableListView Context Menu

May 14, 2010

I'm trying to add a context menu to my ExpandableListView. I've implemented onCreateContextMenu() and onContextItemSelected() but if I hold my finger on a menu item context menu doesn't appear. What's my mistake?

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Android :: ExpandableListView - Is Conditional Expansion Possible

Aug 12, 2010

I have an ExpandableListView bound to a SQLite database. To simplify things, lets assume the database contains two columns: title and body. In the ExpandableListView, there is a group for each title, and a childfor each corresponding body.

Now to make things more interesting, some of the rows in the SQLite database do not have a body (that is... they only have a title). As you can see, if there is no body, then there is no reason to expand the group... because the child will be empty (i.e. String body == "").

I'm searching for a way to catch a situation like this, and skip the group's expansion. I don't want a blank child to be expanded. To put it in psuedo code, I want something like this:

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

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Android :: Refreshing Data In ExpandableListView?

Apr 24, 2010

My problem is when I want to refresh data in ExpandableListView while being in that current activity. I create adapter and when I want to add new data to list I call again constructor of that adapter(it is my private variable) with all new data....and then I call onContentChanged() method to redraw my list.
But what happens is that I cant expand my list any more...like it is blocked or something and logcat isn't saying anything...

This is the code that i call after setting new data in arraylists and maps:

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

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Android :: Create A ExpandableListView In One Activity?

Nov 2, 2010

I'm trying to create a ExpandableListView in one activity. I've looked in apis demos, and I've created ExpandableListView. The problem is, that I need to have this  ExpandableListView in activity that is already created, and not in a new one.

I've used this code:

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

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Android :: Possible For The Child Of An ExpandableListView Also Be A Parent?

Nov 5, 2010

Is it possible for the child of an ExpandableListView also be a parent?

For example, I need something like the following: ParentA ChildA ChildB ParentB ChildC GrandchildA? GrandchildB? ParentC

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Android :: ExpandableListView Indicator Over My Text

Dec 2, 2009

I'm using an ExpandableListView in one of my activity in a RelativeLayout

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

And I'm using a custom expandableListAdaptaer which group view is:

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

(Found on examples of API_Demos, ExpandableList1)

A user of my application report me this photo http://binomed-android-project.googlecode.com/issues/attachment?aid=-... As you can see, the indicator of group items is over the text of group item despite the padding of 36...

And if I'm running emulator WVGA800 or an emulator with "abstracted LCD density" to 240 I have the same problem, but with my phone (HTC G1), I don't have any problem.

What is strange is that I try the application API_Demo with an emulator WVGA800 or an emulator with "abstracted LCD density" to 240 and I go to ExpandableList1 activity and all is alright !

I also try to copy the inner class available in ExpandableList1 for adapter and I launch it into my activity and I also have the problem see on photo

I am forced to manage density into my adapters in order to adjust the padding?

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Android :: Customize The Parent In An ExpandableListView?

Sep 16, 2010

I'm trying to customize the parent(or header) for an expandablelist and I haven't found a solution yet. I want an imageview and two textviews in the parent. This is driving me insane atm.

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Android :: ChoiceMode Compatible With ExpandableListView?

May 12, 2010

Is it possible to make a multiple choice list with android:choiceMode="multipleChoice" or setChoiceMode(ListView.CHOICE_MODE_MULTIPLE) on an ExpandableListView? I am able to do this with CheckBoxes on a plain ListView, but it doesn't seem to be working with ExpandableListView. In the latter, clicking the list item (either parent or child) does not affect the checkbox as it does in the former.

I have noticed that it is possible to click exactly on the checkbox to make it toggle, but this is a very small target.

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Android :: Getting Item's Index From Id In ExpandableListView

Jun 4, 2010

I need to get item's index(position) knowing its ID while using ExpandableListView. Is there any way to do this without making complete hash id->index and searching it?

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Android :: Use An Expandablelistview As A Dropdownview For A Spinner ?

Oct 5, 2010

I have a 2d array of strings. I would like to use a spinner to allow users to select values from the 2nd lvl of the array but I would like to display the selection options in a expandablelistview using the values of the 1st lvl of the array as category headers. Is this possible, how this should be implemented ?

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Android :: Implement An Activity That Uses ExpandableListView

Sep 3, 2010

Im trying to implement an activity that uses ExpandableListView and I have gotten so far but now I have found some strange behavior.

My activity is meant to record food intake as specified by the user. they have a choice of menus (breakfast, lunch and dinner - the outer group) which expand to show their contents.
when a user clicks on an inner menu item a dialog appears asking them for the qty. once they enter a qty and dismiss the dialog the text on the menu item changes to reflect the quantity of that item that has been consumed

The above image shows the list in a closed state.

Below is the list after I have opened the lunch menu and clicked on 'Potato Chips' and indicating a Quantity of 1. As you can see the 'Potato' itemtext has now been changed to reflect the Qty of 1.

The strange part happens now. if I click on 'Lunch' and close the list and then click on it again re-opening it, the 'Qty X 1' text has jumped to another item (Milk)

Each time I open and close the list it jumps back and forth between the two items. Also if I open up other items, such as breakfast, I find that they too have now gotten items with 'Qty X 1' even though I havent clicked them.

The bits of code that are relevant are as such:

The XML for a child element:

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

The code thats triggered on clicking a child element:

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

The above code opens a dialog, accepts a value for quantity, appends the list element to reflect this, also saves to database and sets a textview with the selected item and quantity.

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Android : Switch From A TableLayout To An ExpandableListView?

May 26, 2010

Is it possible to switch from a TableLayout to an ExpandableListView? How? I tried using ViewFlipper but the fact that ExpandableListView doesn't use XML threw a wrench in it.

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Android :: Change Value Of ExpandableListView's Cell On Click

May 4, 2010

I have the following problem: I would like to change value of ExpandableListView's cell on click. How should I do that?

Here is what I'm using:

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

Application is in progress stage, so attrVal will contain several attributes ( which can be put or not depend on some logic), so I'm using this type of adapter and this way of filling cells' data.

fieldsInList - external variable of LinkedHashMap type.

I have a function which can change one of the member's of fieldsInList variable. How should I notify my expListAdapter or ExpanableListView to be refreshed?

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Android :: Setting Focus Programatically In ExpandableListView

Aug 28, 2010

I have subclassed ExpandableListActivity to create an activity that presents a simple tree view of the 'world at large' and allows the user to select one for further use by the app. I am having trouble setting focus programatically. One thing that baffles me is that I can use the D-pad to set focus on any of the child or group items in my ExpandableListView, but inside my onChildClick() callback, isFocusable() returns false. If I can set focus with the D-pad, how can isFocusable() return false?

My goal is to avoid having the user have to touch individual ExpandableListView entries to select them and to provide a couple of buttons to move the focus up and down inside the list. I  want selection to be easy for  folks with no D-pad or with a phone that only presents the D-pad when in landscape mode (e.g. Droid) .

Is there some way I can programatically inject D-pad key clicks into my app input event stream?

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Android :: Display The ExpandableListView Indicator In Right Side?

Nov 4, 2009

Is it possible to display the ExpandableListView  indicator in right side?

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Android :: ExpandableListView Centains A Link Does Not Expand

Jan 27, 2010

I have an ExpandableListView contains a link, it does not expand when has a link, and i want the link is clickable.

CODE like this:

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

And:

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

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Android :: Hide Child Dividers In ExpandableListView

Jul 14, 2010

I need to completely remove dividers from ExpandableListView. As for parent items it's a setDividerHeight method where I can pass a zero value. But there's no similar method for child divider. Is there any way to hide it?

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Android :: Dynamically Build Data For ExpandableListView?

May 3, 2010

I'm using "ExpandableListView" in my application to display some options that . I need a way to build automatically the information to show when a group is expanded as the information might be different each time the group is expanded.

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Android :: Expandablelistview Won't Work With Context Menus / Why Is So?

Oct 3, 2010

My app used to use a standard ListView, and registerForContextMenu(getListView()) and everything worked just fine.

I needed to change my app to accommodate nested lists so I replaced the ListView with ExpandableListView. I changed the Activity to ExpandableListActivity. I also changed my adapter to a tree adapter and implemented a custom view class to populate the list with (based on a FrameLayout view).

Suddenly my context menus stopped working and I can't figure out why. I can't long click on any of my list items and I'm completely stuck on where to start looking.

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