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On May 12, 9:12 am, Dianne Hackborn <hack...@android.com> wrote:
> Don't re-inflate each time. Implement this correctly, where you re-use the
> convertView if it is given. Just make sure you have the states of the views
> set up correctly before you return.
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> On Thu, May 12, 2011 at 8:14 AM, authorwjf <wfran...@softlayer.com> wrote:
> > Yahel's post got me to thinking. I modified the getView method of my
> > data adapter to look like this:
>
> > @Override
> > public View getView(int position, View convertView, ViewGroup parent)
> > {
> > LayoutInflater vi =
> > (LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
> > View v = vi.inflate(R.layout.list_view_row, null);
> > TextView label = (TextView) v.findViewById(R.id.label);
> > ImageView spinner = (ImageView) v.findViewById(R.id.spinner);
> > MyContainer item = (MyContainer) items.get(position);
> > label.setText(item.getText());
> > spinner.setVisibility(View.INVISIBLE);
> > if (item.isLoading()) {
> > label.setText("***"+item.getText()+"***");
> > spinner = (ImageView)v.findViewById(R.id.spinner);
> > spinner.setVisibility(View.VISIBLE);
> > Animation spinnerAnimation =
> > AnimationUtils.loadAnimation(getContext(), R.anim.rotate);
> > spinner.startAnimation(spinnerAnimation);
> > }
> > return v;
> > }
>
> > And the problem seems resolved! Great news for me. Though I wonder
> > if any of you can comment as to the performance hit / impact I might
> > expect to take reloading the view from the layout every single time
> > the adapter refreshes? I'm not experiencing any issues with the demo
> > program, but the lists in my actual application can get rather long
> > and include several lines of text for each row.
>
> > --
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>
> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support, and so won't reply to such e-mails. All such
> questions should be posted on public forums, where I and others can see and
> answer them.
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