Page auto-load when scroll in android example

Page auto-load when scroll in android example

              This
is the sample coding for create page auto load when scroll the
listview in android.
For do that first
you have to create the listview and set the array of values into the
listview using the ArrayAdapter
list=new ArrayList<String>();
lv=(ListView)findViewById(R.id.listView1); for(int i=0;i<35;i++){
list.add(String.valueOf(i));
}
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(),
android.R.layout.simple_list_item_1, list) {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
TextView text = (TextView) view.findViewById(android.R.id.text1);
text.setTextColor(Color.BLACK);
return view;
}
};
lv.setAdapter(adapter);

 

Then,set
the OnScrollListener() for the listview.
lv.setOnScrollListener(new OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
Log.d(“SCROLL STATE”, String.valueOf(scrollState));
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// TODO Auto-generated method stub
}
});

 

Inside
OnScrollListener you
have to get the firstVisibleItem, visibleItemCount in onScroll
to
get the current visible items and load the more item and set it in to
the listview.
Log.d(“visibleItemCount”, String.valueOf(visibleItemCount));
Log.d(“firstVisibleItem”, String.valueOf(firstVisibleItem));
// Log.d(“totalItemCount”, String.valueOf(totalItemCount));
if(firstVisibleItem+visibleItemCount>30)
{
list.clear();
for(int i=0;i<=100;i++){
list.add(String.valueOf(i));
}
adp.notifyDataSetChanged();
}

 

 

Screenshot:
 

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