java在安卓x上设置了建议。appcompat。小装置。搜索框

Question

我正在制作一个安卓应用程序，其中我使用了一个安卓x.appcompat.widget.SearchView我有一个arraylist，其中包含不同的值，现在我想从该数组列表中设置安卓x.appcompat.widget.SearchView的建议。我试了很多，但效果不好。 我还在onQueryTextChange中toast来测试它是否工作，但它不工作，因为当我更改文本时，我没有得到toasr

public static ArrayList<String> phoneNo=new ArrayList<>(); // This one contains names
public static ArrayList<String> cname=new ArrayList<>(); // This one contains phone numbers
private SimpleCursorAdapter mAdapter;

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
 // Inflate the layout for this fragment
        View root= inflater.inflate(R.layout.fragment_messages, container, false);
        final String[] from = new String[] {"contacts"};
        final int[] to = new int[] {安卓.R.id.text1};
        mAdapter = new SimpleCursorAdapter(home_Activity,
                安卓.R.layout.simple_list_item_1,
                null,
                from,
                to,
                CursorAdapter.FLAG_REGISTER_CONTENT_OBSERVER);

}
 @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
searchView = (SearchView) view.findViewById(R.id.sView);
     searchView.setSuggestionsAdapter(mAdapter);
        searchView.setOnSuggestionListener(new SearchView.OnSuggestionListener() {
            @Override
            public boolean onSuggestionClick(int position) {

                Cursor cursor = (Cursor) mAdapter.getItem(position);
                String txt = cursor.getString(cursor.getColumnIndex("contacts"));
                searchView.setQuery(txt, true);
                return true;
            }

            @Override
            public boolean onSuggestionSelect(int position) {
                // Your code here
                return true;
            }
        });



        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String s) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String s) {
                populateAdapter(s);
                Toast.makeText(home_Activity, "ok", Toast.LENGTH_SHORT).show();
                return true;
            }
        });


}