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How to refresh listview in android without scrolling

I am dynamically adding items to my listview my code works fine but my problem is when the listview is updated it is going to the starting position (items are added but scroll view begins from initial position).I am using listview inside fragment.I want to avoid that scrolling to initial position.
CODE
ListAdapter adapter =
new SimpleAdapter(getContext(), productsList, R.layout.list_notify, new String[]{"id","title","des"},
new int[]{R.id.id, R.id.title,R.id.des});
lv.setAdapter(adapter);
lv.invalidateViews();
Reference : How to refresh Android listview?
ListView Refresh in Android
Refresh Listview in android
Android refresh listview in fragment
How to refresh Android listview?

ListView is officially legacy. Try to use RecyclerView then you will be able to tell that you don't update whole list with methods like notifyItemChanged(position)...
In your case you will call notifyItemRangeInserted(position, count)
https://developer.android.com/guide/topics/ui/layout/recyclerview

Try smoothScrollToPosition on your listview.
See this, pretty similar if I understand correct what you want.

So in order to get that scrolling to stop you basically have to block the listview from laying out its children so first off you have to create a custom listview something like
public class BlockingListView extends ListView {
private boolean mBlockLayoutChildren;
public BlockingListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void setBlockLayoutChildren(boolean block) {
mBlockLayoutChildren = block;
}
#Override
protected void layoutChildren() {
if (!mBlockLayoutChildren) {
super.layoutChildren();
}
}
}
then you can use it like this for example
int firstVisPos = mListView.getFirstVisiblePosition();
View firstVisView = mListView.getChildAt(0);
int top = firstVisView != null ? firstVisView.getTop() : 0;
// Block children layout for now
mListView.setBlockLayoutChildren(true);
// Number of items added before the first visible item
int itemsAddedBeforeFirstVisible = ...;
// Change the cursor, or call notifyDataSetChanged() if not using a Cursor
mAdapter.swapCursor(...);
// Let ListView start laying out children again
mListView.setBlockLayoutChildren(false);
// Call setSelectionFromTop to change the ListView position
mListView.setSelectionFromTop(firstVisPos + itemsAddedBeforeFirstVisible, top);
the setBlockLayoutChildren being true is what will stop your listview from scrolling and of course you can set whatever else you would like it to do
you may also just want to look into recyclerview though may make your life easier

I used a gridview instead of my listview and it solved my problem
set 1 item per row can act as listview in my code
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/grid"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
**android:numColumns="1"**
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:scrollbarStyle="outsideOverlay"
android:verticalScrollbarPosition="right"
android:scrollbars="vertical">
reference : Custom layout as an item for a grid view

Update custom listview item attribute

I am using listview in my app.I am adding items to list with this line:
conversationsAdapter.add(user);
and this initializes list
conversationsAdapter=new ArrayAdapter<JsonObject>(this,0) {
#Override
public View getView(int c_position,View c_convertView,ViewGroup c_parent) {
if (c_convertView == null) {
c_convertView=getLayoutInflater().inflate(R.layout.random_bars,null);
}
JsonObject user=getItem(c_position);
String name=user.get("name").getAsString();
String image_url="http://domain.com/photos/profile/thumb/"+user.get("photo").getAsString();
TextView nameView=(TextView)c_convertView.findViewById(R.id.tweet);
nameView.setText(name);
ImageView imageView=(ImageView)c_convertView.findViewById(R.id.image);
Ion.with(imageView)
.placeholder(R.drawable.twitter)
.load(image_url);
return c_convertView;
}
};
ListView conversationsListView = (ListView)findViewById(R.id.conversationList);
conversationsListView.setAdapter(conversationsAdapter);
conversationsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
startChat(conversationsAdapter.getItem(position));
}
});
My list view is looking like this:
I want to update an item in the list.How can I do this ?
Example:We can write a method like: changeName when this method calls,method sets name "Tolgay Toklar" to "Tolgay Toklar Test" so I want to update custom listview item attributes.

I totally disagree with tyczj. You never want to externally modify an ArrayAdapter's list and yes it's possible to update just an individual item. Lets start with updating an individual item.
You can just invoke getItem() and directly modify the object and call notifyDataSetChanged(). Example:
JSONObject object = conversationAdapter.getItem(position);
object.put("name", data);
conversationAdapter.notifyDataSetChanged();
Why does this work? Because the adapter will feed you the same object reference used internally, allowing you to modify it and update the adapter. No problem. Of course, I'd recommend instead building your own custom adapter to perform this directly on the adapter's internal list. As an alternative, I highly recommend using the ArrayBaseAdapter instead. It already provides that ability for you while fixing some other major bugs with Android's ArrayAdapter.
So why is tyczj wrong about modifying the external list? Simple. There's no guarantee that your external list is the same as the adapters. Once you perform a filter on the ArrayAdapter, your external list and the adapters are no longer the same. You can get into a dangerous scenario where (for example) index 5 no longer represents position 5 in the adapter because you later added an item to the adapter. I suggest reading Problems with ArrayAdapter's Constructors for a little more insight.
Update: How External List Fails
Lets say you create a List of objects to pass into an ArrayAdapter. Eg:
List<Data> mList = new ArrayList<Data>();
//...Load list with data
ArrayAdapter<Data> adapter = new ArrayAdapter<Data>(context, resource, mList);
mListView.setAdapter(adapter);
So far so good. You have your external list, you have an adapter instantiated with it and assigned to listview. Now lets say at some later point, the adapter is filtered and cleared.
adapter.filter("test");
//...later cleared
adapter.filter("");
Now at this point mList is NOT the same as the adapter. So if the adapter is modified:
adapter.add(newDataObject);
You'll find that mList does not contain that new data object. Hence why external lists like this can be dangerous as the filter creates a NEW ArrayList instance. It won't continue to use your mList referenced one. You could even try adding items to mList at this point and it won't be reflected in the adapter.

If you change the data in your list you need to call notifyDatasetCanged on the adapter to notify the list that the underlying data has changed needs to be updated and.
Example
List<MyData> data = new ArrayList<MyData>();
private void changeUserName(String name){
//find the one you need to change from the list here
.
.
.
data.set(myUpdatedData);
notifyDatasetChanged()
}

How can i hide a listview item in android?

Hi friends i have a listview and the contents are fetched from a webservice call. In that webservice call, there are fields like
"OGType": "ORG" and "OGType": "GROUP"
If click a button, the listview must shows the item having "OGType": "ORG", and hide the item having "OGType": "GROUP". Hope you understand what i meant. Please anyone help me for that. Thanks in Advance.

Try to set new data (only with ORG) to adapter and then call
adapter.notifyDataSetChanged();

You can do it in your getView Method in your Adapter Class. That's the header
public View getView(int pos, View convertView, ViewGroup, parent)
There you can properly hide the element(s) you want, you know, using the method setVisibility()
For more help you can take a look here

You can create a custom adapter and pass data to it in the form of Array or ArrayList (ArrayList is better when dealing with Custom Adapters). Whenever you need to add or remove the data from ListView, just add or remove the item to or from you ArrayList and call notifyDataSetChanged() on your custom adapter and it will update the ListView automatically.
In your case, whenever you click a button, edit you ArrayList and call your custom adapter's method called notifyDataSetChanged() and that's it. You'll see every time you call this method ListView will refresh itself if you have made any changes to the data. Hope it helps.
NOTE - CUSTOM ADAPTER IS NOT COMPULSORY. ANY ADAPTER CAN BE USED e.g SimpleAdapter, ArrayAdapter etc.

You can use a visible list and filters lists. You should use "visible" for complete the BaseAdpter as always, then, you can change the pointer of visible to other list (all, filter...)
Don't worry by the memory, are pointers, you only have each element only once.
public class MyAdapter extends BaseAdapter {
private ArrayList<MyItem> visible;
private ArrayList<MyItem> all;
private ArrayList<MyItem> filter;
public MyAdapter(ArrayList<MyItem> items) {
all = items;
visible = all; //Set all as visible
filter = new ArrayList<Item>();
for (Item i : items)
if (i.getType().equals("ORG"))
filter.add(i);
}
//Complete adapter using "visible"
public void showOnlyOrg() {
visible = filter;
notifydatasetchanged();
}
}

The non hackish way will be to remove the items from your Collection which you use to generate the listview and then call notifyDataSetChanged();

Splitting a string and putting it inside a listview

I asked a question before about splitting string but maybe it wasn't clear enough.
I made a simple activity which has an example to what my problem is.
I have a message and it's a long one coming from a server.
I need to split this message and put it inside a listview, I'll show you my code.
public class Page1 extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity6);
String message = "0---12,,,2013-02-12 08:04,,,this is a test,,,0---11,,,2013-02-12 08:05,,,and this is why it is damaged,,,0---10,,,2013-02-12 08:06,,,what comes from select data randomly";
String[] variables = message.split(",");
ListView listView1 = (ListView) findViewById(R.id.listView12);
String[] items = { variables.toString() };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, items);
listView1.setAdapter(adapter);
}
}
Now let's say that the split is commas ", " so it will be
0---12 ------->ID1
2013-02-12 08:04 ------------>date1
this is a test ----------->subject1
0---11 ------->ID2
2013-02-12 -8:05 ------------>date2
and this is why it is damaged ----------->subject2
And so on, now what I can't do is that I want to put these strings in a loop and write them to a listview such that the subject1 should be in item1 and date1 should be in subitem1 like this
Subject1
Date1
------
Subject2
Date2
------
This is how the listview should look like
Can anyone help me with this please?

You would need to create a custom ArrayAdapter to populate a ListView from your objects the way you want.
The advantage of this technic is that you gain a Views recycle mechanism that will recycle the Views inside you ListView in order to spend less memory.
In Short you would have to:
1. Create an object that represents your data for a single row.
2. Create an ArrayList of those objects.
3. Create a layout that contains a ListView or add a ListView to you main layout using code.
4. Create a layout of a single row.
5. Create a ViewHolder that will represent the visual aspect of you data row from the stand point of Views.
6. Create a custom ArrayAdapter that will populate the rows according to you needs, in it you will override the getView method and use the position parameter you receive for the corrent row View to indicate the row index.
7. Finally assign this ArrayAdapter to your ListView in onCreate.
You can get an idea of how to implement this by reading this blog post I wrote:
Create a Custom ArrayAdapter

Please note that ArrayAdaper is designed for items containing only one single TextView. From the docs:
A concrete BaseAdapter that is backed by an array of arbitrary objects. By default this class expects that the provided resource id references a single TextView
Consider subclassing ArrayAdapter (docs) and override its getView method.

Large Complex List Of Items In Android

Take the following example screen:
This screen is displaying all current offers, these offers are dynamic.
What would be the best way of implementing the 'Offer' item? Should I use a ListView with a custom ListItem or is there a better solution to handling a list of complex items like this?
Any help appreciated.

Create an adapter with a list that contains a cell layout.
public class ListObject {
public int layout;
... other fields;
}
public class MyAdapter extends ArrayAdapter<ListObject>
and in the getview method, inflate the view that is needed for the offer.
public View getView(...) {
ListObject lo = getItem(position);
convertview = inflater.inflate(lo.layout, null);
}
is this what your trying to do? if not explain your question a bit more.