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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

Android RecyclerView infinity scrolling: how to add more items to dataset

I have implemented my RecyclerView and even added an onscrolllistener to support infinity scrolling and now I'm stuck with a, hopefully, easy problem: How can I add the newly loaded data to the existing dataset?
My current approach: I create a new array with the length of the existing dataset + the length of the newly loaded data. I System.arraycopy my existing dataset and add the new content with a for-loop.
This works but the list is always reset (scrolls back to the top) and I assume my way to add additional content is overly complicated/wrong, though the tutorials I have looked at seem to pass over this "detail".
Update: I'm currently calling "scrollToPosition" on the UI-Thead after the data has been loaded, but I doubt this is the correct way of doing this or am I wrong?

You shouldn't be adding stuff to your dataset, you will sooner or later run out of memory. What you can do is return a big number (I used Short.MAX_VALUE) item in getItemCount inside your adapter and in the method that requests a view for postion you should do position % list.size();
It is not a truly endless RecyclerView this way, but good enough. I will paste some code tomorrow, I don't have it here now :/

I think you have to add items inside your adapter. Let`s say
class Adapter extends Recycler.Adapter<Recycler.ViewHolder>{
List<YourCustomObject> list;
public Adapter(){
list = new ArrayList<>();
}
public void addItem(YourCustomObject item){
list.add(item);
notifyItemDateSetChanged(); //This method for adapter to notice that list size have been changed
}
// Here your views
}
There is implementation of Your fragment or Activity where you retrieve data from internet.Let` say
class MainActivity extends AppCompactActivity{
Adapter adapter = new Adapter();
List<YourCustomObjects> objects;
public void onCreateView(){
//////// Something yours
}
public void onLoadMore(){
///// Your operation to retrieve data and init it to your list objects
for(YourCustomObject object : objects){
adapter.addItem(object);
}
}
}

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();

How to restrict the ListActivity to show only one item

Its very simple, I have a ListActivity I want to show only one item in it.
I have tried
ListView listView = getListView();
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
I have also tried
#Override
public int getCount() {
return 1;
}
The second one throws a ArrayIndexOutOfBounds Exception and crashes the app.
Any help would be greatly appreciated.

Limiting the number of items in a gridview

I am implementing a gridview in Android and my requirement is that I want that only 9 items come on 1 page and if there are more than 9 items in a gridview than rest of them should come on the next page. Is it possible??
Thanks

The method that you override to get count in the Custom Image Adapter that extends Base Adapter. This method gives the number of items to be added.
public class ImageAdapter extends BaseAdapter{
#Override
public int getCount() {
return imageList.size();
}
}

Divide your data set into blocks of nine, give the first set of nine to the adapter that you are using for the GridView. Have a Button for next page give the next data set block to the adapter and tell the adapter that the data set has changed.