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我有一个MvxListView,它具有基于我的域模型中值的不同列表项模板。在每个模板中,都有一个按钮在点击事件中绑定到视图模型。我使用MvxAdapter类来根据域模型值返回正确的模板,这确实可以很好地工作。但是,由于某种原因模板按钮单击事件不会传播到视图模型。我在同一个视图上使用其他按钮并绑定到他们的点击事件就好了。MvxAdapter单击不触发事件
我MvxList:
<Mvx.MvxListView
local:MvxBind="ItemsSource MessageItems; ItemClick TextMessageSelectedCommand"
local:MvxItemTemplate="@layout/template_message_item_inbound"
android:id="@+id/MessageList"
android:divider="@drawable/list_divider_selector"
android:choiceMode="singleChoice"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="start"
android:layout_above="@+id/input"
style="@style/MessageListStyle" />
一个正在使用的两个模板:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:text="BP"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_width="65dp"
android:layout_height="65dp"
android:id="@+id/txtInitials"
local:MvxBind="Text From, Converter=NameToInitials"
android:background="@drawable/message_badge_inbound"
android:layout_gravity="center"
android:gravity="center"
style="@style/MessageUserBadge" />
<TextView
android:text="Small Text"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/txtInitials"
android:background="@drawable/speech_bubble_inbound"
local:MvxBind="Text Message"
android:id="@+id/txtMessage"
android:layout_marginRight="65dp" />
<TextView
android:text="12:53 pm"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_width="65dp"
android:layout_height="wrap_content"
android:layout_below="@+id/txtInitials"
local:MvxBind="Text Time, Converter=DateToString, ConverterParameter='t'"
android:id="@+id/txtTime"
style="@style/MessageTime"
android:gravity="center" />
<ImageButton
android:text="Button"
local:MvxBind="Click DeleteMessageCommand"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btnDeleteMessage"
android:src="@drawable/ic_action_delete"
android:layout_alignParentRight="true"
android:layout_centerInParent="true"
android:tag="InboundDeleteButton" />
我的,基于模型值选择模板的自定义适配器类:
public class CustomAdapter : MvxAdapter
{
public CustomAdapter(Context context, IMvxAndroidBindingContext bindingContext)
: base(context, bindingContext)
{
}
public override int GetItemViewType(int position)
{
var item = GetRawItem(position);
if (item is TextMessage && (item as TextMessage).Direction == MessageDirection.Inbound)
return 0;
return 1;
}
public override int ViewTypeCount
{
get { return 2; }
}
protected override View GetBindableView(View convertView, object source, int templateId)
{
if (source is TextMessage && (source as TextMessage).Direction == MessageDirection.Inbound)
{
templateId = Resource.Layout.template_message_item_inbound;
}
else if (source is TextMessage && (source as TextMessage).Direction == MessageDirection.Outbound)
{
templateId = Resource.Layout.template_message_item_outbound;
}
return base.GetBindableView(convertView, source, templateId);
}
}
在我的视图模型中,我使用命令模式设置了事件侦听器。
public ICommand DeleteMessageCommand
{
get
{
_deleteMessageCommand = _deleteMessageCommand ?? new MvxCommand(HandleDeleteMessage);
return _deleteMessageCommand;
}
}
private void HandleDeleteMessage()
{
}
很酷。我只是想指出你的职位。 – Kiliman 2014-10-03 17:41:55