我想向用户显示所有单元及其所有子单元的列表,以在 ExpandableListView 中进行选择,他们可以在其中检查要移动的单元。由于在 ListView 中似乎有可点击的视图会阻止它自然展开和折叠,所以我将简单地允许 CheckedChange 事件根据 groupPosition 展开/折叠。但是,当我更改一个 CheckBox 上的检查时,几个或所有组都会响应,而不仅仅是我单击的组。
equilistparent.axml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="35dp"
android:gravity="center_vertical">
<CheckBox
android:id="@+id/check"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp" />
<TextView
android:id="@+id/info"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:textSize="20dp"
android:gravity="left" />
<AutoCompleteTextView
android:id="@+id/sites"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:textSize="20dp"
android:textColor="@android:color/black"
android:background="@android:color/white"
android:layout_margin="5dp"
android:textCursorDrawable="@null"
android:gravity="center_horizontal"
android:hint="To Store" />
</LinearLayout>
自定义适配器
class EquipAdapter : BaseExpandableListAdapter
{
private string[] Parent { get; set; }
private List<List<CPEquipment>> Child { get; set; }
private Context _context { get; set; }
private IListAdapter _adapter { get; set; }
private ExpandableListView _list { get; set; }
public EquipAdapter(Context context, List<string> parent, List<List<CPEquipment>> child, IListAdapter adapter, ExpandableListView list)
{
_context = context;
Parent = parent.ToArray();
Child = child;
_adapter = adapter;
_list = list;
}
public override Object GetChild(int groupPosition, int childPosition)
{
List<CPEquipment> level1 = Child.ElementAt(groupPosition);
CPEquipment level2 = level1.ElementAt(childPosition);
return level2.Serial + " " + level2.Model;
}
public override long GetChildId(int groupPosition, int childPosition)
{
return Convert.ToInt32(groupPosition.ToString(CultureInfo.InvariantCulture) + childPosition.ToString(CultureInfo.InvariantCulture));
}
public override int GetChildrenCount(int groupPosition)
{
return Child.ElementAt(groupPosition).Count;
}
public override View GetChildView(int groupPosition, int childPosition, bool isLastChild, View convertView, ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater inflater = (LayoutInflater) _context.GetSystemService(Context.LayoutInflaterService);
convertView = inflater.Inflate(Android.Resource.Layout.SimpleExpandableListItem2, null);
}
TextView text = (TextView) convertView.FindViewById(Android.Resource.Id.Text2);
text.Text = GetChild(groupPosition, childPosition).ToString();
return convertView;
}
public override Object GetGroup(int groupPosition)
{
return Parent[groupPosition];
}
public override long GetGroupId(int groupPosition)
{
return groupPosition;
}
public override View GetGroupView(int groupPosition, bool isExpanded, View convertView, ViewGroup parent)
{
if (convertView == null)
{
LayoutInflater inflater = (LayoutInflater) _context.GetSystemService(Context.LayoutInflaterService);
convertView = inflater.Inflate(Resource.Layout.equiplistparent, null);
}
TextView info = (TextView) convertView.FindViewById(Resource.Id.info);
info.Text = GetGroup(groupPosition).ToString();
AutoCompleteTextView acText = (AutoCompleteTextView) convertView.FindViewById(Resource.Id.sites);
acText.Adapter = _adapter;
CheckBox check = (CheckBox) convertView.FindViewById(Resource.Id.check);
check.CheckedChange += (o, args) =>
{
int currGroup = groupPosition;
if (args.IsChecked)
_list.ExpandGroup(currGroup);
else
{
_list.CollapseGroup(currGroup);
}
};
return convertView;
}
public override bool IsChildSelectable(int groupPosition, int childPosition)
{
return true;
}
public override int GroupCount
{
get { return Parent.Length; }
}
public override bool HasStableIds
{
get { return true; }
}
}
我尝试使用这个建议来解决这个问题,但它对 ListViews 自然展开或折叠的能力没有任何影响。
我尝试将复选框放在子级而不是父级中,并强制所有组打开。但是现在如果我检查其中的 3 个框,另外 3 个框将随机检查自己。我知道有一种方法可以在 ListViews 中使用复选框,但它们的行为与我的预期不同。MonoDroid 有问题吗?