You can do this the same way you would do anything that changes the data
displayed in a ListView. Make the data change in the adapter that's hooked
up to the ListView, then call notifyDataSetChanged on the adapter. That
will cause the ListView to refresh with the new data in the adapter.
Doug
On Tuesday, March 20, 2012 7:34:00 AM UTC-7, radhakrishna wrote:
>
> @seshu
>
> You mean updating onListItemClick method in
> TestListItemsView1Activity :
> ---------------------------------------------------------------------------------------------
>
>
> protected void onListItemClick(ListView l, View v, int position,
> long id) {
> super.onListItemClick(l, v, position, id);
> Toast.makeText(this, "Click-" + String.valueOf(position),
> Toast.LENGTH_SHORT).show();
> dataValues..remove(position);
> }
> ---------------------------------------------------------------------------------------------
>
>
>
> This does not work for me, I need to click remove button to remove
> listrow.
>
> My ListView contains [TextView and delete Button], I need to delete
> list row, when I click on Delete button, When I click On Delete button
> it will not enter into onListItemClick method under
> TestListItemsView1Activity class , it will enter only when I select
> TextView (Text).
>
> Onlick method for delete button located in EfficientAdapter class.
>
> On Mar 20, 2:20 pm, Seshu <[email protected]> wrote:
> > dataValues..remove(position); will deletes the entire row only...
> >
> > On Mar 20, 6:58 pm, radhakrishna <[email protected]>
> > wrote:
> >
> >
> >
> >
> >
> >
> >
> > > Thank you for your response Seshu, But I would like to delete list
> > > row, when I click on delete button from List view.
> >
> > > On Mar 20, 1:12 pm, Seshu <[email protected]> wrote:
> >
> > > > Hi radhakrishna,
> > > > if u want to delete the list row in the list view.
> >
> > > > protected void onListItemClick(ListView l, View v, int position,
> > > > long id) {
> > > > super.onListItemClick(l, v, position, id);
> > > > Toast.makeText(this, "Click-" + String.valueOf(position),
> > > > Toast.LENGTH_SHORT).show();
> >
> > > > dataValues..remove(position);
> >
> > > > }
> >
> > > > Thanks and Regards,
> > > > S.Seshu
> >
> > > > On Mar 20, 2:41 am, radhakrishna <[email protected]>
> > > > wrote:
> >
> > > > > Hi All,
> >
> > > > > I am trying to remove an item from listview,
> > > > > My Listview contains Text and Delete button in each row,
> > > > > when I click on delete button its removing Last row from List
> view,
> > > > > not the actual one which I clicked
> >
> > > > > Here is the Activity Class:
> > > > >
> ---------------------------------------------------------------------------
> --------------------------------------
> >
> > > > > public class TestListItemsView1Activity extends ListActivity {
> > > > > /** Called when the activity is first created. */
> >
> > > > > private EfficientAdapter efficientAdapter;
> > > > > private static String[] data = new String[] { "BBC",
> "Yahoo", "CNN",
> > > > > "Eenadu", "Hindu" };
> > > > > private static List<String> dataValues =
> Arrays.asList(data);
> >
> > > > > @Override
> > > > > public void onCreate(Bundle savedInstanceState) {
> > > > > super.onCreate(savedInstanceState);
> >
> > > > > requestWindowFeature(Window.FEATURE_NO_TITLE);
> > > > > setContentView(R.layout.main);
> > > > > efficientAdapter = new EfficientAdapter(this, dataValues);
> >
> > > > > setListAdapter(efficientAdapter);
> > > > > }
> >
> > > > > @Override
> > > > > protected void onListItemClick(ListView l, View v, int
> position,
> > > > > long id) {
> > > > > super.onListItemClick(l, v, position, id);
> > > > > Toast.makeText(this, "Click-" + String.valueOf(position),
> > > > > Toast.LENGTH_SHORT).show();
> > > > > }
> >
> > > > > Here is the Adapter class
> > > > >
> ---------------------------------------------------------------------------
> --------------------------------------
> >
> > > > > public class EfficientAdapter extends BaseAdapter implements
> > > > > Filterable{
> >
> > > > > private LayoutInflater mInflater;
> > > > > private Context context;
> > > > > final private List<String> data= new ArrayList<String>();
> > > > > private HashMap<String,EfficientAdapter.ViewHolder>
> holders= new
> > > > > HashMap<String, EfficientAdapter.ViewHolder>();
> >
> > > > > public EfficientAdapter(Context context,List<String> data)
> {
> > > > > //super(context, R.layout.main, values);
> > > > > mInflater = LayoutInflater.from(context);
> > > > > this.context=context;
> > > > > this.data.addAll(data);
> > > > > }
> >
> > > > > public View getView(final int position, View convertView,
> ViewGroup
> > > > > parent) {
> > > > > ViewHolder holder;
> >
> > > > > if(convertView == null){
> > > > > convertView =
> mInflater.inflate(R.layout.adaptor_content, null);
> >
> > > > > holder = new ViewHolder();
> > > > > holder.textLine = (TextView)
> > > > > convertView.findViewById(R.id.textLine);
> > > > > holder.buttonLine =(Button)
> > > > > convertView.findViewById(R.id.buttonLine);
> >
> > > > >
> holder.textLine.setText(this.data.get(position));
> > > > > convertView.setOnClickListener(new
> OnClickListener() {
> > > > > private int pos= position;
> > > > > public void onClick(View v) {
> > > > > Toast.makeText(context,
> "Click-" + String.valueOf(pos),
> > > > > Toast.LENGTH_SHORT).show();
> >
> > > > > }
> > > > > });
> >
> > > > > holder.buttonLine.setOnClickListener(new
> OnClickListener() {
> > > > > private int pos= position;
> >
> > > > > public void onClick(View v) {
> > > > > ViewHolder deleteHolder =
> (ViewHolder)v.getTag();
> > > > > int
> delPosition=deleteHolder.position;
> > > > >
> holders.remove(delPosition);
> > > > > ViewHolder currentHolder;
> > > > > for(int
> i=pos+1;i<getCount();i++){
> > > > > currentHolder =
> holders.get(delPosition);
> > > > >
> currentHolder.position=i-1;
> > > > > }
> > > > > data.remove(delPosition);
> > > > > notifyDataSetChanged();
> >
> > > > > Toast.makeText(context,
> "Delete-" + String.valueOf(pos),
> > > > > Toast.LENGTH_SHORT).show();
> >
> > > > > }
> > > > > });
> > > > > holder.position=position;
> > > > > holders.put(Integer.toString(position),
> holder);
> > > > > convertView.setTag(holder);
> >
> > > > > } else {
> > > > > holder =(ViewHolder) convertView.getTag();
> > > > > }
> >
> > > > > return convertView;
> > > > > }
> >
> > > > > advance Thanx,
> > > > > Krishna
On Tuesday, March 20, 2012 7:34:00 AM UTC-7, radhakrishna wrote:
>
> @seshu
>
> You mean updating onListItemClick method in
> TestListItemsView1Activity :
> ---------------------------------------------------------------------------------------------
>
>
> protected void onListItemClick(ListView l, View v, int position,
> long id) {
> super.onListItemClick(l, v, position, id);
> Toast.makeText(this, "Click-" + String.valueOf(position),
> Toast.LENGTH_SHORT).show();
> dataValues..remove(position);
> }
> ---------------------------------------------------------------------------------------------
>
>
>
> This does not work for me, I need to click remove button to remove
> listrow.
>
> My ListView contains [TextView and delete Button], I need to delete
> list row, when I click on Delete button, When I click On Delete button
> it will not enter into onListItemClick method under
> TestListItemsView1Activity class , it will enter only when I select
> TextView (Text).
>
> Onlick method for delete button located in EfficientAdapter class.
>
> On Mar 20, 2:20 pm, Seshu <[email protected]> wrote:
> > dataValues..remove(position); will deletes the entire row only...
> >
> > On Mar 20, 6:58 pm, radhakrishna <[email protected]>
> > wrote:
> >
> >
> >
> >
> >
> >
> >
> > > Thank you for your response Seshu, But I would like to delete list
> > > row, when I click on delete button from List view.
> >
> > > On Mar 20, 1:12 pm, Seshu <[email protected]> wrote:
> >
> > > > Hi radhakrishna,
> > > > if u want to delete the list row in the list view.
> >
> > > > protected void onListItemClick(ListView l, View v, int position,
> > > > long id) {
> > > > super.onListItemClick(l, v, position, id);
> > > > Toast.makeText(this, "Click-" + String.valueOf(position),
> > > > Toast.LENGTH_SHORT).show();
> >
> > > > dataValues..remove(position);
> >
> > > > }
> >
> > > > Thanks and Regards,
> > > > S.Seshu
> >
> > > > On Mar 20, 2:41 am, radhakrishna <[email protected]>
> > > > wrote:
> >
> > > > > Hi All,
> >
> > > > > I am trying to remove an item from listview,
> > > > > My Listview contains Text and Delete button in each row,
> > > > > when I click on delete button its removing Last row from List
> view,
> > > > > not the actual one which I clicked
> >
> > > > > Here is the Activity Class:
> > > > >
> ---------------------------------------------------------------------------
> --------------------------------------
> >
> > > > > public class TestListItemsView1Activity extends ListActivity {
> > > > > /** Called when the activity is first created. */
> >
> > > > > private EfficientAdapter efficientAdapter;
> > > > > private static String[] data = new String[] { "BBC",
> "Yahoo", "CNN",
> > > > > "Eenadu", "Hindu" };
> > > > > private static List<String> dataValues =
> Arrays.asList(data);
> >
> > > > > @Override
> > > > > public void onCreate(Bundle savedInstanceState) {
> > > > > super.onCreate(savedInstanceState);
> >
> > > > > requestWindowFeature(Window.FEATURE_NO_TITLE);
> > > > > setContentView(R.layout.main);
> > > > > efficientAdapter = new EfficientAdapter(this, dataValues);
> >
> > > > > setListAdapter(efficientAdapter);
> > > > > }
> >
> > > > > @Override
> > > > > protected void onListItemClick(ListView l, View v, int
> position,
> > > > > long id) {
> > > > > super.onListItemClick(l, v, position, id);
> > > > > Toast.makeText(this, "Click-" + String.valueOf(position),
> > > > > Toast.LENGTH_SHORT).show();
> > > > > }
> >
> > > > > Here is the Adapter class
> > > > >
> ---------------------------------------------------------------------------
> --------------------------------------
> >
> > > > > public class EfficientAdapter extends BaseAdapter implements
> > > > > Filterable{
> >
> > > > > private LayoutInflater mInflater;
> > > > > private Context context;
> > > > > final private List<String> data= new ArrayList<String>();
> > > > > private HashMap<String,EfficientAdapter.ViewHolder>
> holders= new
> > > > > HashMap<String, EfficientAdapter.ViewHolder>();
> >
> > > > > public EfficientAdapter(Context context,List<String> data)
> {
> > > > > //super(context, R.layout.main, values);
> > > > > mInflater = LayoutInflater.from(context);
> > > > > this.context=context;
> > > > > this.data.addAll(data);
> > > > > }
> >
> > > > > public View getView(final int position, View convertView,
> ViewGroup
> > > > > parent) {
> > > > > ViewHolder holder;
> >
> > > > > if(convertView == null){
> > > > > convertView =
> mInflater.inflate(R.layout.adaptor_content, null);
> >
> > > > > holder = new ViewHolder();
> > > > > holder.textLine = (TextView)
> > > > > convertView.findViewById(R.id.textLine);
> > > > > holder.buttonLine =(Button)
> > > > > convertView.findViewById(R.id.buttonLine);
> >
> > > > >
> holder.textLine.setText(this.data.get(position));
> > > > > convertView.setOnClickListener(new
> OnClickListener() {
> > > > > private int pos= position;
> > > > > public void onClick(View v) {
> > > > > Toast.makeText(context,
> "Click-" + String.valueOf(pos),
> > > > > Toast.LENGTH_SHORT).show();
> >
> > > > > }
> > > > > });
> >
> > > > > holder.buttonLine.setOnClickListener(new
> OnClickListener() {
> > > > > private int pos= position;
> >
> > > > > public void onClick(View v) {
> > > > > ViewHolder deleteHolder =
> (ViewHolder)v.getTag();
> > > > > int
> delPosition=deleteHolder.position;
> > > > >
> holders.remove(delPosition);
> > > > > ViewHolder currentHolder;
> > > > > for(int
> i=pos+1;i<getCount();i++){
> > > > > currentHolder =
> holders.get(delPosition);
> > > > >
> currentHolder.position=i-1;
> > > > > }
> > > > > data.remove(delPosition);
> > > > > notifyDataSetChanged();
> >
> > > > > Toast.makeText(context,
> "Delete-" + String.valueOf(pos),
> > > > > Toast.LENGTH_SHORT).show();
> >
> > > > > }
> > > > > });
> > > > > holder.position=position;
> > > > > holders.put(Integer.toString(position),
> holder);
> > > > > convertView.setTag(holder);
> >
> > > > > } else {
> > > > > holder =(ViewHolder) convertView.getTag();
> > > > > }
> >
> > > > > return convertView;
> > > > > }
> >
> > > > > advance Thanx,
> > > > > Krishna
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