0. Stop creating new adapter and adding it to your ListView every time
user types anything. Consult ListAdapter API - there are methods to
accommodate your needs.
1. Don't scan all items every time user changes the input. Add timer
to perform the search/filter and delay the search by say 0.9sec
resetting the timer in onTextChanged.
2. Optimise your search. *start*, *before*, and *count* are there for a reason.
3. If you are ambitious, use better data structure behind the adapter
to speed up your search or place your data in DB and use
CursorAdapter.
On 8 February 2012 12:27, vani reddy <vani.reddy.bl...@gmail.com> wrote:
>
> Hello,
>
> I have a listview in which i am loading data of size 400. for the edittext
> i am giving
>
>
> search_feild.addTextChangedListener(new TextWatcher() {
> List<Show> _sortShow = new ArrayList<Show>();
>
> public void afterTextChanged(Editable s) {
> }
>
> public void beforeTextChanged(CharSequence s, int start, int
> count,
> int after) {
> }
> public void onTextChanged(CharSequence s, int start, int before,
> int count) {
>
> searchStr = search_feild.getText().toString().trim()
> .toLowerCase();
> _sortShow.clear();
> for (int i = 0; i < m_ChannelList.getData().size(); i++) {
>
> if (textlength <= m_ChannelList.getData().get(i)
> .getListing_name().length() || textlength <=
> m_ChannelList.getData().get(i) .getCh_name().length()) {
>
> Show show = m_ChannelList.getData().get(i);
>
> if ((((String)
> show.getListing_name().toLowerCase()) .contains(searchStr))
> || (((String) show.getCh_name().toLowerCase())
> .contains(searchStr))
>
> )
> {
>
> _sortShow.add(show);
> }
> sorted_ChannelList.setData(_sortShow);
>
>
>
>
> adapter = new
> LazyAdapterChannelList(ChannelGuideActivity.this,
> sorted_ChannelList); setListAdapter(adapter);
>
> }
> });
>
> it is blocking the UI,How to resolve it
> --
> Regards,
> Vani Reddy
>
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