由网友(复兴从前)分享简介：我的目标很简单。我想补充一个红色矩形作为的 headerview 的到的ListView 。所以我创建了一个简单的活动My target is simple. I want to add a "Red Rectangle" as a headerview to a ListView.so I create a s...

我的目标很简单。我想补充一个红色矩形作为的 headerview 的到的ListView 。 所以我创建了一个简单的活动

My target is simple. I want to add a "Red Rectangle" as a headerview to a ListView. so I create a simple activity

public class MainActivity extends Activity {
    private String[] adapterData = new String[] { "Afghanistan", "Albania", "Algeria", 
            "American Samoa", "Andorra", "Angola"}; 

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        ListView lv;
        lv = (ListView)findViewById(R.id.list);

        LayoutInflater lf;
        View headerView;
        lf = this.getLayoutInflater();
        headerView = (View)lf.inflate(R.layout.header, null, false);

        lv.addHeaderView(headerView, null, false);

        lv.setAdapter(new ArrayAdapter<String>(this, R.layout.list_item, adapterData)); 
    }
}

activity_main.xml

activity_main.xml

<ListView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#FF0" 
        android:cacheColorHint="#0000"
        android:paddingLeft="20dip"
        android:paddingRight="20dip"
        android:divider="#0000"
        android:scrollbarStyle="outsideOverlay" />

list_item.xml

list_item.xml

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@android:id/text1"
    android:layout_width="match_parent"
    android:layout_height="0dip"
    android:minHeight="40dip"
    android:singleLine="true"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:gravity="center_vertical"
/>

最重要的是，header.xml

most important, header.xml

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="100dip"
    android:background="#F00"/>

但它似乎并没有工作。不显示任何内容。

But it doesn't seem to work. Nothing is displayed.

可以在任何给这方面的一些建议吗？你的帮助是非常AP preciated。

Can any give some suggestions on this? Your help is highly appreciated.

推荐答案

这是我如何添加一个标题：

This is how I add a header:

    View view = View.inflate(context, R.layout.header, null);
    lv = (ListView) findViewById(R.id.list);


    lv.addHeaderView(view);