我有一个搜索文本输入字段和一个加载了适配器项目的循环视图，当我在搜索字段中输入数据时，循环视图适配器必须根据搜索输入进行过滤，然后显示它。但是，在我将数据输入搜索字段后，我无法过滤其显示旧时的内容。请帮我解决错误并告诉我如何解决它
SearchInput代码：
txtDynamicSearch.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int
count) {
//DynamicSearchActivity.this.arrayAdapter.getFilter().filter(s);
DynamicSearchActivity.this.customListAdapter.getFilter().filter(s);
}
@Override
public void afterTextChanged(Editable s) {
}
});
过滤代码：
public class CustomListAdapter extends
RecyclerView.Adapter<CustomListAdapter.MyViewHolder>
implements Filterable{
private ArrayList<samples> allsamplesList;
private ArrayList<samples> filteredsamplesList;
private Activity context;
private LayoutInflater inflater;
private sampleFilter filter;
Integer imageId = R.drawable.icon;
RecyclerView recyclerView;
public static class MyViewHolder extends RecyclerView.ViewHolder {
TextView textViewName;
TextView textViewLanguage;
//ImageView imageViewIcon;*/
public MyViewHolder(View itemView) {
super(itemView);
this.textViewName = (TextView)
itemView.findViewById(R.id.textViewName);
this.textViewLanguage = (TextView)
itemView.findViewById(R.id.textViewLanguage);
/*this.imageViewIcon = (ImageView)
itemView.findViewById(R.id.imageView);
*/}
}
public CustomListAdapter(Activity context, ArrayList<samples> list) {
//super(context, R.layout.item, list);
this.context = context;
this.allsamplesList = new ArrayList<samples>();
allsamplesList.addAll(list);
this.filteredsamplesList = new ArrayList<samples>();
filteredsamplesList.addAll(allsamplesList);
inflater = context.getLayoutInflater();
getFilter();
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.cards_layout, viewGroup, false);
//view.setOnClickListener(DynamicSearchActivity);
MyViewHolder myViewHolder = new MyViewHolder(view);
return myViewHolder;
}
@Override
public void onBindViewHolder(MyViewHolder myViewHolder, int i) {
TextView textViewName = myViewHolder.textViewName;
TextView textViewLanguage = myViewHolder.textViewLanguage;
textViewName.setText(allsamplesList.get(i).getsample_name());
textViewLanguage.setText(allsamplesList.get(i).getsample_language());
}
@Override
public int getItemCount() {
return allsamplesList.size();
}
@Override
public Filter getFilter() {
if (filter == null) {
filter = new sampleFilter(this);
}
return filter;
}
private class sampleFilter extends Filter {
private CustomListAdapter adapter;
private sampleFilter(CustomListAdapter adapter) {
super();
this.adapter = adapter;
}
@Override
protected FilterResults performFiltering(CharSequence constraint) {
constraint = constraint.toString().toUpperCase();
FilterResults results = new FilterResults();
if (constraint != null && constraint.toString().length() > 0) {
ArrayList<samples> filteredItems = new ArrayList<samples>();
for (int i=0; i < allsamplesList.size(); i++ ) {
samples samples = allsamplesList.get(i);
if (samples.getsample_name().contains(constraint)) {
filteredItems.add(samples);
notifyItemRangeChanged(i,allsamplesList.size());
}
}
results.count = filteredItems.size();
results.values = filteredItems;
}
else {
synchronized (this) {
results.count = allsamplesList.size();
results.values = allsamplesList;
}
}
return results;
}
@Override
protected void publishResults(CharSequence constraint, FilterResults
results) {
filteredsamplesList = (ArrayList<samples>) results.values;
Collections.sort(filteredsamplesList, new Comparator<samples>() {
@Override
public int compare(samples lhs, samples rhs) {
return lhs.getsample_name().compareTo(rhs.getsample_name());
}
});
notifyDataSetChanged();
adapter.notifyDataSetChanged();
adapter.filteredsamplesList.clear();
adapter.filteredsamplesList.addAll((ArrayList<samples>)
results.values);
adapter.filteredsamplesList = (filteredsamplesList);
int n = results.count;
for (int i=0; i < filteredsamplesList.size(); i++) {
adapter.filteredsamplesList.add(filteredsamplesList.get(i));
adapter.notifyItemInserted(i);
adapter.notifyDataSetChanged();
//notifyItemRangeChanged(0,n);
}
adapter.notifyDataSetChanged();
notifyDataSetInvalidated();
adapter.notifyDataSetChanged();
notifyDataSetChanged();
Log.e("values", constraint.toString());
//Log.e("values",
String.valueOf((filteredsamplesList.get(0)).sample_name));
}
}
}