I'm using ListFragment in a ViewPager. Is there a way to populate an ArrayList with the visible ListFragment's list items everytime the user pages to a new page?
You can implement an (OnPageChangeListener) onPageSelected() for the ViewPager and use it to detect which page the user has switched too. Then you can use the ListView getLastVisiblePosition and getFirstVisiblePosition to find out which items are currently displayed in the listView. Then it's simply a matter of storing those items in an arraylist.
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I have a long ListView, which its items are editable (simple strings).
The user can change the content as he/she wants.
My problem is, that when I want to retrieve the new data from the List view,
I can not reach the invisible items in the list.
How can I retrieve the data from these items without scrolling to these items?
Is there a way to fill the adapter ,with the new data the user entered to the list?
I think you can do that. if you have reference of Adapter for that list view
you can call getCount and then iterate and while calling getItem(pos) , to get data for all the positions in the list view.
I have ListView which has many items(rows), onClick of any item goes to the DetailActivity which explains more about that particular item. If I want to see the detail of the next item, I have to come back to the ListView and click next item. How to design to see the next or previous item's detail from DetailActivity by swiping it left or right.
I assume that you have a Custom Object and ArrayList of this object.
You need to have an adapter to Show this Arraylist into Listview
When you clicked the list item you need to pass your object from ListActivity to your DetailActivity
I think you are doing this fine until this part.
Then now, you can use ViewPager and its adapter in your DetailActivity.
When you click the list item, you need to pass your Arraylist and your object index to the DetailActivity.
In the DetailActivity, get your Arraylist, set your List into ViewPager adapter, find your object via index(that you clicked) and set ViewPager page index as your wanted item index.
If you manage this correctly, you can slide details of your content. You can ask ma anything to make this clear.
There is a tutorial of Using the ViewPager: http://architects.dzone.com/articles/android-tutorial-using
You could go with a ExpandableListView. No need to open a new screen or doing something which becomes hard to manage like Fragments. The user can show/hide detail just by clicking on the item.
A view that shows items in a vertically scrolling two-level list. This
differs from the ListView by allowing two levels: groups which can
individually be expanded to show its children. The items come from the
ExpandableListAdapter associated with this view.
In my project i have a ListView for handling the list of a product. In that i have a list of 100 Items in that List view. Each and Every time i have been seeing the first row of the ListView..
If i need to see the data in the ListView Means, i need to scroll down, Can i focus directly to a particular item by any function by passing the position(ID) of the ListView..
For Example this is my ListView that contains 11 items in it..
I'm seeing every time the ListView as the following,..
And my try is, If i give the ListView position as ID=5 means, can i get the Focus of the ListView as follow, in the opening itself...
Can we get this by ListFragment method or anything else?
Suggest me for the Best..
try this, use setselection
listview.setSelection(position);
Don't know about ListFragment but in listview, you can use listview.setSelection(position);
This method will help you to achieve this
for example: listview.setSelection(5);
How can I recreate listView?
I have listView with items containing few TextViews and I want, to reaload ListView and hide part of those TextViews from every row. I tried setting new adapter, clearing adapter (it makes listView empty), invalidating listView, using notifyDataSetChanged(). Nothing forced ListView to recreate items.
Use a ArrayAdapter backed by an ArrayList. To change the data, just update the data in the list and call adapter.notifyDataSetChanged() - Robby Pond
Also please check Google I/O 2010 - The world of ListView
Is it possible to have an ExpandableListView within a ListView in android? I only need one item on the list to expand.
Generally you display one or more items in listview. But there are more items for example 100 items in listview then you can use load more button in listview which display more items when user click on it. I think you refer this.