What is the method for adding rows in a ListView?

In Android, you can add items to a ListView using the following methods:

1. You can utilize the ArrayAdapter to create an ArrayAdapter object, adding data one by one using the add() method, and then set the adapter to the ListView.

ListView listView = findViewById(R.id.list_view);
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1);
adapter.add("行1");
adapter.add("行2");
adapter.add("行3");
listView.setAdapter(adapter);

1. You can use a SimpleAdapter to create an object and store each row’s data in a List>, then set the adapter to the ListView.

ListView listView = findViewById(R.id.list_view);
List<Map<String, Object>> data = new ArrayList<>();

Map<String, Object> row1 = new HashMap<>();
row1.put("text", "行1");
data.add(row1);

Map<String, Object> row2 = new HashMap<>();
row2.put("text", "行2");
data.add(row2);

Map<String, Object> row3 = new HashMap<>();
row3.put("text", "行3");
data.add(row3);

SimpleAdapter adapter = new SimpleAdapter(this, data, android.R.layout.simple_list_item_1, new String[]{"text"}, new int[]{android.R.id.text1});
listView.setAdapter(adapter);

1. Custom Adapter: You can create a custom Adapter class that extends BaseAdapter and override the getView() method to define the view for each row, then set the custom Adapter to the ListView.

ListView listView = findViewById(R.id.list_view);
CustomAdapter adapter = new CustomAdapter();
listView.setAdapter(adapter);

...

private class CustomAdapter extends BaseAdapter {
    private String[] data = {"行1", "行2", "行3"};

    @Override
    public int getCount() {
        return data.length;
    }

    @Override
    public Object getItem(int position) {
        return data[position];
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = getLayoutInflater().inflate(android.R.layout.simple_list_item_1, parent, false);
        }

        TextView textView = convertView.findViewById(android.R.id.text1);
        textView.setText(data[position]);

        return convertView;
    }
}

These are the common methods for adding rows to a ListView, you can choose the appropriate one depending on your actual needs.