android - 自定义ListAdapter问题

使用this，我尝试创建一个自定义ListAdapter，将所有记录添加为CheckBoxes。即使我在调试过程中看到适配器包含所有4条预期记录，并且重写int Count方法返回4，并且重写View GetView迭代4次，位置变量始终为0，只有1个包含第一条记录的CheckBox实际上显示。

ListView行布局xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <CheckBox
    android:id="@+id/checkItem"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"/>
</LinearLayout>

CallManager.axml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
  <RelativeLayout
    android:id="@+id/container"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <LinearLayout
      android:id="@+id/equipLayout"
      android:tag="equip"
      android:layout_width="fill_parent"
      android:orientation="horizontal"
      android:layout_height="fill_parent"
      android:layout_below="@id/place4"
      android:layout_margin="8dip"
      android:visibility="gone">
     <ListView
      android:id="@+id/equipLV"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"></ListView>
   </LinearLayout>
</RelativeLayout>
</ScrollView>

//还有其他几个嵌套的LinearLayouts，这就是为什么我有ScrollView和RelativeLayouts的原因。不相关，因此出于清洁考虑。

呼叫管理

public class CallManagement : Activity
{
    CustomListAdapter listAdapter;

    protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);

        SetContentView(Resource.Layout.CallManager);

        ListView equipLV = (ListView)FindViewById(Resource.Id.equipLV);
        listAdapter = new CustomListAdapter(this, callNumber.Substring(0,10));
        equipLV.Adapter = listAdapter;

}

自定义ListAdapter类

public class CustomListAdapter : BaseAdapter
{
    Activity context;
    External inst;

    public List<equip> equip;

    public CustomListAdapter(Activity context, string callNumber)
        :base()
    {
        inst = new External();
        this.context = context;
        this.equip = new List<equip>();
        this.equip = inst.popEquipLV().ToList();
    }

    public override int  Count
    {
        get { return equip.Count; }
    }

    public override Java.Lang.Object  GetItem(int position)
    {
        return position;
    }

    public override long  GetItemId(int position)
    {
        return position;
    }

    public override View  GetView(int position, View convertView, ViewGroup parent)
    {
        var item = equip[position];
        var view = (convertView ??
            context.LayoutInflater.Inflate(Resource.Layout.equipLVitem, parent, false)) as LinearLayout;

        CheckBox checkItem = (CheckBox)view.FindViewById(Resource.Id.checkItem);
        checkItem.Tag = GetItemAtPosition(position).unit.ToString();
        checkItem.Text = GetItemAtPosition(position).serial.ToString();

        return view;
    }

    public equip GetItemAtPosition(int position)
    {
        return equip[position];
    }

}

最佳答案

您永远不想将ListView放在ScrollView内。那可能是问题所在。