Question

I have ArrayAdapter with this items structure:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout ... >

         <TextView
             android:id="@+id/itemTextView"
             ... />
</RelativeLayout>

And add this adapter so:

mAdapter = new ArrayAdapter<String>(this, R.layout.item, 
                                            R.id.itemTextView, itemsText);

All is fine but I want to update text in adapter’s items. I found a solution

mAdapter.notifyDataSetChanged();

but do not understand how to use it. Help please.

upd
My code:

String[] itemsText = {"123", "345", "567"};
ArrayAdapter<String> mAdapter;

onCreate

mAdapter = new ArrayAdapter<String>(this, R.layout.roomitem, 
                                              R.id.itemTextView, itemsText);
setListAdapter(mAdapter);
itemsText = {"789", "910", "1011"};

onClick

mAdapter.notifyDataSetChanged();
//it's dont work

Answer 1

I think something like this

public void updatedData(List itemsArrayList) {

    mAdapter.clear(); 

    if (itemsArrayList != null){

        for (Object object : itemsArrayList) {

            mAdapter.insert(object, mAdapter.getCount());
        }
    }

    mAdapter.notifyDataSetChanged();

}