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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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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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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Sep 20, 2010
i've got an ExpandableListView with my own layouts for the group and child views. a certain group-type will require a different layout. is that possible - i.e. a ELV with different layouts for a group view. i've got my own sub-class of SimpleExpandableListAdapter.
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Dec 14, 2009
I know it's considered taboo to place a ListView inside a scrolling container, so is there any "proper" way to accomplish scrolling of a container that has a ListView child in it? An example layout would look something like:
Header
---
"Sub" header
---
ListView with list items
---
Footer
Header and Footer need to remain static on the screen, and the middle content (Subheader and ListView) should scroll between them. I can't have just the ListView scrollable, because the subheader takes up too much space. As it is currently, the Header comes from an <include />, the Subheader contains several views including an Image and some text, and the ListView (actually part of a ViewFlipper) would contain an indeterminate number of items. The Footer has a couple buttons/tabs that are used to control the ViewFlipper (only one of the views in the flipper is a ListView).
The only way I can think of to accomplish this efficiently would be to place the Subheader inside the ListView as the first item -- is there any better way?
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Mar 30, 2010
My child activity X is called from Parent activity P through startActivity(intent). I want to close P when X called its finish() method. I override a method finishFromChild(Activity child) in P and called finish() in it. But this functions (finishFromChild(Activity child)) is not being called after X finish() Is it a known bug or I am missing some thing? I googled and also searched the groups but no help.
An alternative could be... using StartActivityForResult() and a "fake" onActivityResult, where I can finish the parent activity, but this way is quite bad, i think...
I prefer the first one, if it would work....
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Jul 2, 2010
I have a parent activity, and a child activity that extends the parent activity. When the parent starts the child activity,
Which onCreate gets executed first? The child's or parent's?
There is a particular variable I am setting in the Child activity's onCreate method, and right now, it looks like it takes a while to get to the Child activity's onCreate, and so the methods in the Parent are reporting an empty variable. Whereas when I make the Parent sleep for a while, it reports the correct variable.
CODE:............
So, basically, even after the Parent starts the Child, it still returns "Parent Value", but when I have the thread sleep, it return "Child Value".
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Feb 28, 2010
ExpandableListView has a setOnChildClickListener method, but lacks of setOnChild*Long*ClickListener method.
When I added setOnLongClickListener() on child view in getChildView(), whole sublist became completely unclickable (despite of parentView.setOnChildClickListener() present and working before).
How can I enable long clicks on child views?
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Jun 1, 2009
I have created a custom ExpandableListAdapter and everything works properly. What I'd like to be able to do is in each of the groups add a different type of child to the end. I have tried adding 1 to the getChildrenCount() number and then testing isLastChild in the getChildView() method, but that doesn't seem to work.
If a group has three children what I have working looks like this:
Group
NormalChild
NormalChild
NormalChild
But I'd really like something like this:
Group
NormalChild
NormalChild
NormalChild
AlternateChild
The idea being that the AlternateChild could be a link to more info about the group.
ListView has addFooterView() which will allow you to add a footer to a whole ListView... wonder how to add them to the ExpandableListView's children, or if it's even possible
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Nov 8, 2010
I want to open new child activity in the parent LinearLayout. Just similar like Tabs.
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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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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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Jun 8, 2010
I have an application, which (for the sake of simplicity) has two types of activities - Overview and DetailView. The Overview activity shows a list of steps and allows the user to start a DetailView activity corresponding to the step chosen.
In the DetailView activity, the user can start another Overview, which shows different steps than the ones in the parent of the current DetailView.
In the Overview, DetailView is started by using startActivityForResult (). In the DetailView, when the user decides to start a second Overview, I call setResult () and finish () and then start the new Overview. In this scenario, onActivityResult () and finishFromChild () do not fire. Instead, they fire when the parent finishes (?).
Code from Overview:
CODE:....
Code from DetailView:
CODE:..........................
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Dec 14, 2009
I'm using ExpandableListView in my app and one of the complains is that when expanded it's hard to visually distinguish where the child item ends and next group item begins. So I would like to change background of the child list item to the different shade. Brutal attempts that I've made so far were based on directly changing background color and text of the elements inside the child view item but that leads to loss of hovers and highlights. So my question is - what is a good strategy to achieve the above? I tried styles and selectors but what really bums me out - that if I change one thing then I need to add selectors for all combinations of focus/enabled etc. when all I'm trying to do it to overwrite a single thing. Is there a way to inherit parent style and set just a background for non- focused, enabled child item?
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Mar 20, 2010
I need to draw a child view containing a rectangle and button on top of the content view at particular location on the parent (content view). How can I do this? Did not find an explicit way to set origin of child view?
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Jul 25, 2010
I have a main screen with buttons to launch other subactivities. I have to press back button each time to go back to the main screen of my application. How do I finish a child activity and automatically return from the caller?
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Jan 6, 2010
I have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
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Oct 27, 2010
I need to implement an xml parser and the parsed result into an expandablelistview.
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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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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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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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Sep 17, 2010
Is it possible to animate the expanding and collapsing of the groups in a ExpandableListView.
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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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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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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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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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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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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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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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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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