java - 使用 ListAdapter 的新 Intent

Question

我有一个 ListView 从 XML 文件加载项目数据

for (int i = 0; i < nlProject.getLength(); i++) {

            // Neue HashMap erstellen
            HashMap<String, String> map = new HashMap<String, String>();
            Element e = (Element) nlProject.item(i);

            // Jedes Kind-Knoten zur HashMap
            map.put(KEY_UUID, parser.getValue(e, KEY_UUID));
            map.put(KEY_NAME, parser.getValue(e, KEY_NAME));
            map.put(KEY_JOBTITLE, parser.getValue(e, KEY_JOBTITLE));
            map.put(KEY_JOBINFO, parser.getValue(e, KEY_JOBINFO));
            map.put(KEY_PROJECT_IMAGE, parser.getValue(e, KEY_PROJECT_IMAGE));


            //Hashmap zur ArrayList hinzufügen
            menuItems.add(map);
        }

        ListAdapter adapter = new SimpleAdapter(ListViewActivity.this, menuItems,
                R.layout.list_item_projects,
                new String[]{KEY_JOBTITLE, KEY_JOBINFO},
                new int[]{R.id.jobtitle, R.id.jobinfo});

        setListAdapter(adapter);

如果我点击一个项目，我想加载一个显示我的任务数据的新窗口

这是代码:

public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


    //Neue Oberfläche starten
    Intent in = new Intent(ListViewActivity.this, ListMenuItemActivity.class);
    in.putExtra(KEY_TITLE,"title");
    in.putExtra(KEY_INFO,"info");
    in.putExtra(KEY_LOCATION, "location");
    startActivity(in);


    ListAdapter taskadapter = new SimpleAdapter(this, menuItems,
            R.layout.list_item_tasks,
            new String[]{KEY_TITLE, KEY_INFO, KEY_OBJECT, KEY_LOCATION},
            new int[]{R.id.title, R.id.info, R.id.object, R.id.location});

    setListAdapter(taskadapter);

问题在于它将ListAdapter(适配器)更改为taskadapter而不是创建新的 Activity/Intent

如何解决这个问题？

Answer 1

正如上面评论中的回复，您只需编写代码即可打开 Activity 。

public void onItemClick(AdapterView<?> parent, View view, int position, long id) {


    //Neue Oberfläche starten
    Intent in = new Intent(ListViewActivity.this, ListMenuItemActivity.class);
    in.putExtra(KEY_TITLE,"title");
    in.putExtra(KEY_INFO,"info");
    in.putExtra(KEY_LOCATION, "location");
    startActivity(in);
});

然后您可以在新 Activity 中设置列表适配器

ListAdapter taskadapter = new SimpleAdapter(this, menuItems,
            R.layout.list_item_tasks,
            new String[]{KEY_TITLE, KEY_INFO, KEY_OBJECT, KEY_LOCATION},
            new int[]{R.id.title, R.id.info, R.id.object, R.id.location});

    setListAdapter(taskadapter);

希望对你有帮助...