listview控件怎么设置横向多个列

要在ListView控件中设置横向多个列，可以使用GridView作为ListView的子控件。

以下是一个示例：

activity_main.xml:

list_item.xml:

MainActivity.java:

public class MainActivity extends AppCompatActivity {

    private ListView listView;
    private List> data;

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

        listView = findViewById(R.id.listView);

        // 初始化数据
        data = https://www.yisu.com/ask/new ArrayList<>();
        for (int i = 0; i < 20; i++) {
            List row = new ArrayList<>();
            for (int j = 0; j < 3; j++) {
                row.add("Item " + i + "-" + j);
            }
            data.add(row);
        }

        // 设置适配器
        MyAdapter adapter = new MyAdapter(data);
        listView.setAdapter(adapter);
    }

    private class MyAdapter extends BaseAdapter {

        private List> data;

        public MyAdapter(List> data) {
            this.data = https://www.yisu.com/ask/data;"hljs">int position) {
            return data.get(position);
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            if (convertView == null) {
                convertView = LayoutInflater.from(MainActivity.this).inflate(R.layout.list_item, parent, false);
            }

            GridView gridView = convertView.findViewById(R.id.gridView);
            ArrayAdapter gridAdapter = new ArrayAdapter<>(MainActivity.this, android.R.layout.simple_list_item_1, data.get(position));
            gridView.setAdapter(gridAdapter);

            return convertView;
        }
    }
}

这样就可以在ListView中显示横向多个列的数据了。每个Item使用GridView来显示多列数据，通过设置GridView的numColumns属性为auto_fit可以自动根据屏幕大小调整显示列数。用数组适配器ArrayAdapter来显示每个格子的数据。