如何使用MvvmCross流畅的API将RecyclerView项目的TextView绑定到Android上ViewModel的属性？

<MvxRecyclerView
    android:id="@+id/my_recycler_view"
    local:MvxItemTemplate="@layout/item_recycler_view" />

public class Mainviewmodel : Mvxviewmodel
{
    private IEnumerable<viewmodelItem> _viewmodelItems;
    public IEnumerable<viewmodelItem> viewmodelItems
    {
        get { return _viewmodelItems; }
        set { SetProperty(ref _viewmodelItems,value); }
    }    
}

var recyclerView = View.FindViewById<MvxRecyclerView>(resource.Id.my_recycler_view);
var set = this.CreateBindingSet<MainView,Mainviewmodel>();
set.bind(recyclerView)
    .For(v => v.ItemssourcE)
    .To(vm => vm.viewmodelItems);
set.Apply();

<LinearLayout>
    <TextView
        android:id="@+id/innerText" />
</LinearLayout>

public class viewmodelItem
{
    public String title { get; set; }
}

解决方法

public class MyAdapter : MvxRecyclerAdapter
{
    public MyAdapter(IMvxAndroidBindingContext bindingContext)
        : base(bindingContext)
    {
    }

    public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent,int viewTypE)
    {
        var itemBindingContext = new MvxAndroidBindingContext(parent.Context,this.bindingContext.LayoutInflaterHolder);
        var view = this.InflateViewForHolder(parent,viewType,itemBindingContext);

        return new MyViewHolder(view,itemBindingContext);
    }
}

在此ViewHolder中,您可以使用Fluent API进行绑定.

public class MyViewHolder : MvxRecyclerViewHolder
{
    private readonly TextView textView;

    public MyViewHolder(View itemView,IMvxAndroidBindingContext context)
        : base(itemView,context)
    {
        this.textView = itemView.FindViewById<TextView>(Android.resource.Id.Text1);

        this.DelayBind(() =>
        {
            var set = this.CreateBindingSet<MyViewHolder,viewmodelItem>();
            set.bind(this.textView).To(x => x.titlE);
            set.Apply();
        });
    }
}

在您的Activity中创建适配器并将其添加到RecyclerView：

var adapter = new MyAdapter((IMvxAndroidBindingContext)this.bindingContext);
recyclerView.Adapter = adapter;

并将您的项目绑定到您的适配器的Itemssource：

set.bind(this.adapter).For(x => x.ItemssourcE).To(x => x.viewmodelItems);