ListAdapter 的新 Intent

Question

我有一个 ListView 从 XML-File

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，我想加载一个新的 window 显示我的任务数据

代码如下：

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);

问题是它将 ListAdapter(adapter) 更改为 taskadapter 而不是创建新的 activity/intent

我该如何解决这个问题？

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);
});

然后您可以在新的 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);

希望对您有所帮助...

Answer 2

您可以使用 putStringArrayList(String key, ArrayList<String> value) 方法额外添加一个字符串数组；例如，

ArrayList<String> stringArray = new ArrayList<String>();
stringArray.add("The String value you want");
stringArray.add("Another String value you want");

对于使用 putIntArray(String key, int[] value) 方法的 Int 数组，还请检查此 lilink 以获取有关 EXTRA 字段的参考。

ListAdapter 的新 Intent

new Intent with ListAdapter

java

android

android-intent

listadapter