[英]Cannot resolve getFilter() method on adapter class of Recyclerview.Adapter
我正在使用實現RecylerView
接口的 RecyclerView.Adapter 類創建一個RecylerView
。 我已經徹底檢查了我的代碼,但可以找到錯誤的原因。 當我在 SearcView 的setOnQueryTextListener.onQueryTextChange
方法中使用這個適配器類時,它顯示“無法解析getFilter()
方法”。
這是自定義 RecyclerView.Adapter 類的代碼:
public class CUGAdapter extends RecyclerView.Adapter<CUGAdapter.CUGViewHolder> implements Filterable {
private ArrayList<Contact> CUG;
private ArrayList<Contact> filteredCUG;
public class CUGViewHolder extends RecyclerView.ViewHolder{
public TextView emp_id;
public TextView emp_name;
public TextView emp_designation;
public TextView emp_mobile;
public View layout;
public CUGViewHolder(View v) {
super(v);
this.layout = v;
this.emp_id = (TextView) v.findViewById(R.id.txt_empid);
this.emp_name = (TextView) v.findViewById(R.id.txt_name);
this.emp_designation = (TextView) v.findViewById(R.id.txt_designation);
this.emp_mobile = (TextView) v.findViewById(R.id.txt_mobile);
}
}
public CUGAdapter(ArrayList<Contact> CUG) {
this.CUG = CUG;
}
@Override
public CUGAdapter.CUGViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
LayoutInflater inflater = LayoutInflater.from(parent.getContext());
View v = inflater.inflate(R.layout.listview_layout, parent, false);
CUGViewHolder vh = new CUGViewHolder(v);
return vh;
}
@Override
public void onBindViewHolder(CUGViewHolder holder, int position) {
Contact c = filteredCUG.get(position);
holder.emp_mobile.setText(c.mobile);
holder.emp_designation.setText(c.designation);
holder.emp_name.setText(c.name);
holder.emp_id.setText(c.empid);
}
@Override
public int getItemCount() {
return filteredCUG.size();
}
@Override
public Filter getFilter() {
return new Filter() {
private ArrayList<Contact> filtered = new ArrayList<Contact>();
@Override
protected FilterResults performFiltering(CharSequence charSequence) {
String charString = charSequence.toString().toLowerCase();
filtered.clear();
if(charString.isEmpty()){
filtered = CUG;
//filteredCUG = CUG;
}
else{
for (Contact cug : CUG){
if( cug.name.toLowerCase().contains(charString) || cug.mobile.toLowerCase().contains(charString) || cug.empid.toLowerCase().contains(charString)){
filtered.add(cug);
}
}
//filteredCUG = filtered;
}
FilterResults filterResults = new FilterResults();
filterResults.values = filtered;
return filterResults;
}
@Override
protected void publishResults(CharSequence charSequence, FilterResults filterResults) {
//filteredCUG.clear();
filteredCUG = (ArrayList<Contact>) filterResults.values;
notifyDataSetChanged();
}
};
}}
這是搜索視圖監聽器的代碼:
public boolean onCreateOptionsMenu(Menu menu) {
menu.findItem(R.id.app_bar_search).getActionView();
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_main, menu);
SearchView searchView = (SearchView) menu.findItem(R.id.app_bar_search).getActionView();
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
adapter.getFilter().filter(newText);// Error occurs at this line
return false;
}
});
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}}
將適配器初始化更改為
CUGAdapter adapter = new CUGAdapter(this.cuglist);
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