Question

我有一个简单的搜索应用，可以搜索国家/地区列表。它只是一个简单的列表视图，只有字符串，但现在我不得不制作一个自定义列表适配器并将标志添加到列表，我的搜索（过滤器）不再有效，因为它总是返回相同的结果（第1结果）和其他几个，没有与我提供的搜索相关。

SearchActivity

public class SearchResults extends AppCompatActivity {

private static final String TAG = SearchResults.class.getSimpleName();

private ListView list;
private TextView emptyResultsTextView;

String[] listOfText = {
        "afghanistan",
        "albania",
        "algeria",
        "andorra",
        "angola",
        "antigua_and_barbuda",
        "armenia",
        "aruba",
        "australia",
        "austria",
        "azerbaijan",
        "bahamas_the",
        "bahrain",
        "bangladesh",
        "barbados"
};

Integer[] listImages = {
        R.mipmap.afghanistan,
        R.mipmap.albania,
        R.mipmap.algeria,
        R.mipmap.andorra,
        R.mipmap.angola,
        R.mipmap.antigua_and_barbuda,
        R.mipmap.armenia,
        R.mipmap.aruba,
        R.mipmap.australia,
        R.mipmap.austria,
        R.mipmap.azerbaijan,
        R.mipmap.bahamas_the,
        R.mipmap.bahrain,
        R.mipmap.bangladesh,
        R.mipmap.barbados
};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search_results);

    CustomListAdapter adapter = new CustomListAdapter(this, listOfText, listImages);
    Intent intent = getIntent();
    String searchPhrase = intent.getExtras().getString("search");
    Log.i(TAG, "Search phrase is " + searchPhrase);
    list = (ListView) findViewById(R.id.searchResultsListView);
    emptyResultsTextView = (TextView) findViewById(R.id.emptyResultsSearch);
    emptyResultsTextView.setVisibility(View.GONE);

        adapter.getFilter().filter(searchPhrase, new Filter.FilterListener() {
            @Override
            public void onFilterComplete(int count) {
                if (count == 0) {
                    emptyResultsTextView.setVisibility(View.VISIBLE);
                    list.setVisibility(View.GONE);
                    emptyResultsTextView.setText(R.string.no_results);
                }
            }
        });
    adapter.notifyDataSetChanged();

    list.setAdapter(adapter);
    list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            String selectedItem = listOfText[+position];
            Toast.makeText(getApplicationContext(), selectedItem, Toast.LENGTH_SHORT).show();
        }
    });

}

CustomListAdapter

public class CustomListAdapter extends ArrayAdapter<String>{

private final Activity activity;
private final String[] countryName;
private final Integer[] imgId;

public CustomListAdapter(Activity activity, String[] countryName, Integer[] imgId){
    super(activity, R.layout.search_results_row_list, countryName);

    this.activity = activity;
    this.countryName = countryName;
    this.imgId = imgId;
}

public View getView(int position, View view, ViewGroup parent){
    LayoutInflater inflater = activity.getLayoutInflater();
    View rowView = inflater.inflate(R.layout.search_results_row_list, null, false);


    TextView txtCountry = (TextView)rowView.findViewById(R.id.country_text);
    ImageView imageViewCountry = (ImageView)rowView.findViewById(R.id.country_flag);

    txtCountry.setText(countryName[position]);
    imageViewCountry.setImageResource(imgId[position]);
    return rowView;

}

}

我怎样才能让它只搜索文本部分，即国家名称并返回？我是否正确使用以下方式进行搜索：

adapter.getFilter().filter(searchPhrase, new Filter.FilterListener() {
            @Override
            public void onFilterComplete(int count) {
                if (count == 0) {
                    emptyResultsTextView.setVisibility(View.VISIBLE);
                    list.setVisibility(View.GONE);
                    emptyResultsTextView.setText(R.string.no_results);
                }
            }
        });

谢谢

CustomListAdapter仅返回第一个结果

0 个答案: