在 Android 上的 ListFragment 中使用 ArrayAdapter 出现构造函数错误 [英] Getting a constructor error with ArrayAdapter in a ListFragment on Android

问题描述

这是我的代码.我收到错误 The constructor ArrayAdapter(MainFragment, int, String[]) is undefined on ArraryAdapter.

Here's my code. I'm getting the error The constructor ArrayAdapter<String>(MainFragment, int, String[]) is undefined on ArraryAdapter.

如何用数组 items 填充 listView1?

How do I populate the listView1 with the array items?

public class MainFragment extends ListFragment {    

    String[] items = { "12 Monkeys", "(500) Days of Summer", "Chariots of Fire" };

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, items));
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        return super.onCreateView(inflater, container, savedInstanceState);
    }
}

这是我的 XML:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

推荐答案

片段不是上下文对象.您需要将 Activity 对象 (Fragment.getActivity()) 作为第一个参数传递.

Fragments are not context objects. You need to pass the Activity object (Fragment.getActivity()) as first argument instead.

这篇关于在 Android 上的 ListFragment 中使用 ArrayAdapter 出现构造函数错误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！