1
我目前遇到与Android上的MvvmCross奇怪的问题。我想要将视图绑定到ViewModel。我的设置如下MvvmCross Databinding没有按预期工作
public class ForumTopicItemsViewModel : MvxViewModel
{
ObservableCollection<ForumReplyListModel> _forumComments;
ForumTopicDetailsModel _topic;
long _forumId;
long _topicId;
bool _busy;
int _page;
public ForumTopicItemsViewModel()
{
_topic = new ForumTopicDetailsModel()
{
DateCreated = DateTime.Now.AddDays(-1),
Discussion = "Just the fact that I dont care about what is displayed here",
ForumId = ForumId,
TopicId = TopicId,
Topic = "Another Heading, Just for the sake of it"
};
_forumComments = new ObservableCollection<ForumReplyListModel>
{
new ForumReplyListModel()
{
CreatedBy = "Peter Edike",
DateCreated = DateTime.Now.AddDays(-1),
Reply = "Just a reply to show how far I have come"
}
};
}
public int Page
{
get { return _page; }
set { SetProperty(ref _page, value); }
}
private static bool IsHostReachable()
{
var nReachability = Mvx.Resolve<IMvxReachability>();
return nReachability.IsHostReachable(AppConfiguration.RequestUrl);
}
public ObservableCollection<ForumReplyListModel> Comments
{
get { return _forumComments; }
set { SetProperty(ref _forumComments, value); }
}
public ForumTopicDetailsModel Topic
{
get { return _topic; }
set { SetProperty(ref _topic, value); }
}
public string Heading => this.Topic.Topic;
public string Description => this.Topic.Discussion;
public string DateCreatedString => this.Topic.DateCreatedString;
public bool Busy
{
get { return _busy; }
set { SetProperty(ref _busy, value); }
}
public long ForumId
{
get { return _forumId; }
set {SetProperty(ref _forumId, value); }
}
public long TopicId
{
get { return _topicId; }
set { SetProperty(ref _topicId, value); }
}
public void Init(long TopicId, long ForumId)
{
this.TopicId = TopicId;
this.ForumId = ForumId;
}
}
和我有Android的XML视图，像这样
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent">
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent">
<MvvmCross.Droid.Support.V4.MvxSwipeRefreshLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:MvxBind="Refreshing Busy; RefreshCommand LoadReplyCommand">
<MvxRecyclerView
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:MvxItemTemplate="@layout/listitem_commentlist"
app:MvxBind="ItemsSource Comments;" />
</MvvmCross.Droid.Support.V4.MvxSwipeRefreshLayout>
<View
android:layout_width="match_parent"
android:layout_height="4px"
android:background="@color/grey_soft" />
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="match_parent">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
app:cardCornerRadius="@dimen/spacing_medium"
app:cardElevation="@dimen/spacing_xsmall"
app:cardUseCompatPadding="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="@dimen/spacing_medium"
android:layout_marginLeft="@dimen/spacing_large"
android:layout_marginRight="@dimen/spacing_large"
android:layout_marginTop="@dimen/spacing_large"
android:textAppearance="@style/TextAppearance.AppCompat.Headline"
android:textColor="@color/upload_photo_button_color"
app:MvxBind="Text Heading" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/spacing_large"
android:text="@string/lorem_ipsum"
app:MvxBind="Text Description"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textColor="@color/grey_dark" />
<View
android:layout_width="match_parent"
android:layout_height="2px"
android:background="@color/grey_soft" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="@dimen/spacing_large"
app:MvxBind="Text DateCreatedString"
android:textAppearance="@style/TextAppearance.AppCompat.Body1"
android:textColor="@color/upload_photo_button_color"
android:textStyle="italic" />
</LinearLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
</LinearLayout>
</LinearLayout>
问题：
的MvxRecyclerView的内容，虽然我的收藏确信是从来没有显示在构造函数中有项目。
其他每个绑定按预期工作。如果我注释掉除MvxRecyclerView以外的所有内容，它就会变得可见。
请我想我做错了什么。
有人能指出我正确的方向吗？
谢谢。