在Listview中添加Searchview

<SearchView
    android:id="@+id/searchView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:queryHint="Search" />

SearchView searchView = findViewById(R.id.searchView);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
    @Override
    public boolean onQueryTextSubmit(String query) {
        // 处理搜索提交事件
        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        // 处理搜索内容变化事件
        return false;
    }
});

public class MyAdapter extends BaseAdapter implements Filterable {
    private List<String> originalData;
    private List<String> filteredData;

    // 构造函数等省略...

    @Override
    public Filter getFilter() {
        return new Filter() {
            @Override
            protected FilterResults performFiltering(CharSequence constraint) {
                FilterResults results = new FilterResults();
                List<String> filteredList = new ArrayList<>();

                if (constraint == null || constraint.length() == 0) {
                    filteredList.addAll(originalData);
                } else {
                    String filterPattern = constraint.toString().toLowerCase().trim();
                    for (String item : originalData) {
                        if (item.toLowerCase().contains(filterPattern)) {
                            filteredList.add(item);
                        }
                    }
                }

                results.values = filteredList;
                results.count = filteredList.size();
                return results;
            }

            @Override
            protected void publishResults(CharSequence constraint, FilterResults results) {
                filteredData.clear();
                filteredData.addAll((List<String>) results.values);
                notifyDataSetChanged();
            }
        };
    }

    // getView等方法省略...
}