Android-如何将项目单击方法添加到ArrayAdapter [英] Android - how to add an item click method to an ArrayAdapter

问题描述

我有一个简单的ArrayAdapter.我想为列表中的每一行单击设置一个侦听器，以便打开一个新的活动".我该怎么做?我的ArrayAdapter代码-

I have a simple ArrayAdapter. I want to set up a listener for every row click of my list such that a new Activity opens. How would I do that? My ArrayAdapter code -

public class CountryListAdapter extends ArrayAdapter<String> {
private final Activity context;
private final ArrayList<String> names;

public CountryListAdapter(Activity context, ArrayList<String> names) {
    super(context, R.layout.rowlayout, names);
    this.context = context;
    this.names = names;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    LayoutInflater inflater = context.getLayoutInflater();
    View rowView = inflater.inflate(R.layout.rowlayout, null, true);
    TextView textView = (TextView) rowView.findViewById(R.id.label);
    textView.setText(names.get(position));
    return rowView;
}

推荐答案

假设您正在使用实现OnItemClickListener的ListActivity 您可以使用以下代码:

Assuming you are using a ListActivity implementing OnItemClickListener you could use this code:

ArrayAdapter<Object> ad = new ArrayAdapter<Object>(this,
                android.R.layout.simple_list_item_checked, items);
        setListAdapter(ad);
        ListView list = getListView();
        list.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        //list.setItemChecked(0, true);
        list.setOnItemClickListener(this);

否则，如果不扩展ListActivity，请在布局中使用listview并将ListView list = getListView()替换为ListView list = findViewById(R.id.listView)之类的内容.将list.setOnItemClickListener(this)替换为

Otherwise, if you don't extend ListActivity, have a listview in your layout and replace ListView list = getListView() with something like ListView list = findViewById(R.id.listView). Replace list.setOnItemClickListener(this) with

list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            }
        });

这篇关于Android-如何将项目单击方法添加到ArrayAdapter的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！