My getView() method in the class ListViewAdapter....
public View getView(int position, View convertView, ViewGroup parent)
{
Log.i(myLog, "In the getView() method");
ViewHolder holder;
if(convertView == null){
convertView = mInflater.inflate(R.layout.list_view,
null);
holder = new ViewHolder();
holder.text = (TextView) convertView
.findViewById(R.id.TextView01);
int tvWidth = width / 3;
holder.text.getLayoutParams().width = tvWidth;
holder.text.getLayoutParams().height = (height /
6);
holder.text2 = (TextView) convertView
.findViewById(R.id.TextView02);
holder.text2.getLayoutParams().width = tvWidth;
holder.text2.getLayoutParams().height = (height /
6);
holder.text3 = (TextView) convertView
.findViewById( R.id.TextView03);
holder.text3.getLayoutParams().width = tvWidth;
holder.text3.getLayoutParams().height = (height /
6);
//convertView.setBackgrsetoundColor((position
% 2) == 0 ? Color.parseColor("#DEE8F1") : Color.LTGRAY);
convertView.setBackgroundColor(Color.WHITE);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.text.setGravity(position == 0 ?
Gravity.CENTER : Gravity.LEFT);
holder.text2.setGravity(Gravity.CENTER);
holder.text3.setGravity(Gravity.CENTER);
if(position == 0){
Log.i(myLog, "========" + position + "=========");
holder.text.setBackgroundColor(Color.GRAY);
holder.text2.setBackgroundColor(Color.GRAY);
holder.text3.setBackgroundColor(Color.GRAY);
holder.text.setTextColor(Color.WHITE);
holder.text2.setTextColor(Color.WHITE);
holder.text3.setTextColor(Color.WHITE);
holder.text.setText( Html.fromHtml("<b> SCRIP</
b>") );
holder.text2.setText( Html.fromHtml("<b>ClOSE</
b>" ) );
holder.text3.setText( Html.fromHtml("<b>CHG%</
b>" ) );
}else{
holder.text.setText( Html.fromHtml("<b>" +
scripVector.elementAt( position - 1).toString() + "</b>") );
holder.text2.setText( Html.fromHtml("<b>" +
closeVector.elementAt(position - 1).toString() + "</b>" ) );
if(change[position - 1].indexOf("-") > -1){
holder.text3.setBackgroundColor(Color.RED);
holder.text3.setText( Html.fromHtml("<b>" +
changeVector.elementAt(position - 1).toString() + "</b>" ) );
}else{
holder.text3.setTextColor(Color.GREEN);
holder.text3.setText( Html.fromHtml("<b>" +
changeVector.elementAt(position - 1).toString() + "</b>" ) );
}
}
return convertView;
}
The above is my getView(...) method...
On Long press of the item, i show an AlertDialog which allows the user
to add, delete,edit, removeAll a row...
Now the value of the each of the TextViews (total 3) which I have
inflated into the ListView is associated with 3 different Vector
elements respectively..
I longclick on position 2, alert dialog pops up, I set delete
operation at row 2 and then I set the an empty string at each of the
vectors at the same location (i.e at 2), and then i call a method
updateList();
public boolean onItemLongClick( AdapterView<?> parent, View arg1, int
position, long arg3) {
final int k = position;
final View view = arg1;
final AdapterView aView = parent;
Toast.makeText(ctx, "position: " + k,
Toast.LENGTH_SHORT).show();
if(position > 0){
final CharSequence[] items = {"Add scrip", "Delete
scrip", "Move scrip"};
AlertDialog.Builder builder = new
AlertDialog.Builder(ctx);
builder.setTitle("Group Action");
builder.setItems(items, new
DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int item) {
Toast.makeText(ctx, items[item],
Toast.LENGTH_SHORT).show();
Log.i(myLog, "" + scripVector.size() + "
" + aView.getChildCount());
updateList(k); // this method changes the
Vector elements.....
}
});
AlertDialog alert = builder.create();
alert.show();
}
return true;
}
public void updateList(){
this.notifyDataSetChanged();
//what I understood from the documentation at
developer.android.com, this method should refresh the list
automatically....
//It does it, but it changes the last row of the list surprisingly
and applies it the look which I have set for the 1st row in the
getView(...) method...
//Or may be, i am committing a minor mistake.
}
On Mar 3, 8:51 pm, Justin Anderson <[email protected]> wrote:
> Can you post your entire getView method?
> On Mar 3, 2011 11:46 AM, "NR" <[email protected]> wrote:
>
> > Any suggestions how to solve it... i simply call the
> > notifyDataSetChanged() method in my CustomBaseAdapter class....
>
> > Do I have to set the adapter again to the listview? like
> > ListView.setAdapter(adapter)
>
> > On Mar 3, 3:59 pm, Justin Anderson <[email protected]> wrote:
> >> This sounds like it could be a view recycling issue
> >> On Mar 3, 2011 3:42 AM, "Namit Rana" <[email protected]> wrote:
>
> >> > I have a ListView with a custom BaseAdapter.
>
> >> > in getView(...) in CustomBaseAdapter class...
>
> >> > I have specified gray color in the 1st row and white color in all
> >> > other rows.
>
> >> > if(position==0){
> >> > holder.text1.setBackGroundColor(Color.gray) // same for next 2
> >> > TextView views.
> >> > }else{
> >> > //set the textview color to white
> >> > }
>
> >> > After I change the content of the specific row (all textViews), I
> >> > call
> >> > this.notifyDataSetChanged();
>
> >> > The data gets updated properly, but the last row of the ListView
> >> > displays gray color along with the first row.
> >> > But I have set the gray color to the 1st row..
>
> >> > Any help???
> >> > Regards
>
> >> > --
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