问题描述
尝试这种方式，希望这将帮助您解决问题。
Home Fragment
public class HomeActivity extends Fragment {
String countryCode;
ArrayList<ProfileBean> catagery;
EditText search;
AdaptorClass adapter;
public static String Bussinessurl;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
View rootView = inflater.inflate(R.layout.homeactivity, container, false);
//Log.i("homeurl", "http://chabu.agicent.com/api/v1/get_business?token=" +Login.USERTOKEN.toString());
search = (EditText) rootView.findViewById(R.id.search);
catagery = new ArrayList<ProfileBean>();
new JSONAsyncTask()
.execute(Login.AllChabu);
ListView listview = (ListView) rootView.findViewById(R.id.list);
adapter = new AdaptorClass(getActivity(), catagery);
listview.setItemsCanFocus(false);
listview.setTextFilterEnabled(true);
listview.setAdapter(adapter);
countryCode = GetCountryZipCode();
Log.i("country code", countryCode);
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1,
int position, long id) {
//Toast.makeText(getActivity(),
// catagery.get(position).getcategory_name(), Toast.LENGTH_LONG)
//.show();
position = position + 1;
Log.i("url", Bussinessurl);
Intent i = new Intent(getActivity(), BusinessActivity.class);
startActivity(i);
}
});
search.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable arg0) {
String text = search.getText().toString();
adapter.filter(text);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1,
int arg2, int arg3) {
}
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2,int arg3) {
}
});
return rootView;
}
}
转接器类别
public class AdaptorClass extends BaseAdapter {
private List<ProfileBean> originalData;
private List<ProfileBean> filteredData;
private Context context;
public AdaptorClass(Context context,ArrayList<ProfileBean> originalData) {
this.context=context;
this.originalData = originalData;
filteredData =new List<ProfileBean>();
filteredData.addAll(this.originalData);
}
@Override
public int getCount() {
return filteredData.size();
}
@Override
public Object getItem(int position) {
return filteredData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = LayoutInflater.from(context).inflate(R.layout.row, null);
holder.tvDescription = (TextView) convertView.findViewById(R.id.tvDescriptionn);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.tvDescription.setText(filteredData.get(position).getcategory_name());
return convertView;
}
class ViewHolder {
public TextView tvDescription;
}
public void filter(String charText) {
filteredData.clear();
if (charText.length() == 0) {
filteredData.addAll(originalData);
} else {
for (ProfileBean bean : originalData) {
if (bean.getcategory_name().toLowerCase().contains(charText.toLowerCase())) {
filteredData.add(bean);
}
}
}
notifyDataSetChanged();
}
}
解决方法
我有一个应用程序，其中将json中的数据显示到listview中，现在想在listview上应用搜索功能。但是每当我在editbox中输入内容时，错误数组索引就会超出界限。请帮助我进行排序。
HomeActivity
public class HomeActivity extends Fragment {
String countryCode;
ArrayList<ProfileBean> catagery;
EditText search;
AdaptorClass adapter;
public static String Bussinessurl;
public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
//setContentView(R.layout.homeactivity);
View rootView = inflater.inflate(R.layout.homeactivity,container,false);
//Log.i("homeurl","http://chabu.agicent.com/api/v1/get_business?token=" +Login.USERTOKEN.toString());
search=(EditText)rootView.findViewById(R.id.search);
catagery = new ArrayList<ProfileBean>();
new JSONAsyncTask()
.execute(Login.AllChabu);
ListView listview = (ListView)rootView. findViewById(R.id.list);
adapter = new AdaptorClass(getActivity(),R.layout.row,catagery);
listview.setItemsCanFocus(false);
//listview.setOnItemClickListener(this);
listview.setTextFilterEnabled(true);
listview.setAdapter(adapter);
countryCode = GetCountryZipCode();
Log.i("country code",countryCode);
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0,View arg1,int position,long id) {
// TODO Auto-generated method stub
//Toast.makeText(getActivity(),// catagery.get(position).getcategory_name(),Toast.LENGTH_LONG)
//.show();
position = position+1;
Log.i("url",Bussinessurl);
Intent i= new Intent( getActivity(),BusinessActivity.class);
startActivity(i);
}
});
search.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
search.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable arg0) {
}
@Override
public void beforeTextChanged(CharSequence s,int start,int count,int after) {
}
@Override
public void onTextChanged(CharSequence s,int before,int count) {
adapter.getFilter().filter(s.toString());
}
});
}
});
return rootView;
}
适配器类
public class AdaptorClass extends ArrayAdapter<ProfileBean> implements Filterable {
private List<ProfileBean> originalData = null;
private List<ProfileBean> filteredData = null;
LayoutInflater vi;
int Resource;
ViewHolder holder;
private ItemFilter mFilter = new ItemFilter();
public AdaptorClass(Context context,int resource,ArrayList<ProfileBean> objects) {
super(context,resource,objects);
vi = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
Resource = resource;
//actorList = objects;
this.filteredData = objects;
this.originalData = objects;
}
@Override
public View getView(int position,View convertView,ViewGroup parent) {
View v = convertView;
if (v == null) {
holder = new ViewHolder();
v = vi.inflate(Resource,null);
holder.tvDescription = (TextView) v
.findViewById(R.id.tvDescriptionn);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
}
holder.tvDescription
.setText(filteredData.get(position).getcategory_name());
return v;
}
static class ViewHolder {
public TextView tvDescription;
}
public android.widget.Filter getFilter() {
return mFilter;
}
private class ItemFilter extends android.widget.Filter {
@Override
protected FilterResults performFiltering(CharSequence constraint) {
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
final List<ProfileBean> list = originalData;
int count = list.size();
Log.i("count",String.valueOf(count));
final ArrayList<ProfileBean> nlist = new ArrayList<ProfileBean>(count);
String filterableString;
for (int i = 0; i <count; i++) {
ProfileBean bean = list.get(i);
filterableString = bean.getcategory_name();
if (filterableString.toLowerCase().contains(
filterString.toString().toLowerCase())) {
nlist.add(bean);
}
}
results.values = nlist;
results.count = nlist.size();
return results;
}
@SuppressWarnings("unchecked")
@Override
protected void publishResults(CharSequence constraint,FilterResults results) {
filteredData = (ArrayList<ProfileBean>) results.values;
notifyDataSetChanged();
}
}