我找不到可供使用的所有类型绑定器的列表,最近发现了一个关于本地的同事:MvxBind =“可见性属性”,这对我们的代码有很大帮助。我相信MvvMCross有很多隐藏的宝石,我们还不知道。信息是否可以在某处获得?
我们知道的粘合剂:
谢谢!
答案 0 :(得分:10)
MvvmCross绑定到本机视图上的C#属性 - 因此Xamarin.Android公开的任何公共C#get / set属性都可以单向绑定。
此外,如果属性Foo
伴随着签名public event EventHandler FooChanged
的事件,那么MvvmCross可以双向绑定它。
MvvmCross还会与本机视图公开的任何public
C#event
绑定 - 只要他们有EventHandler
个签名且不 {{1 }}
这些可以自动绑定到EventHandler<SomeSpecialArgs>
个调用者(该操作会自动绑定到ICommand
处理程序,但无会自动绑定到Execute
)
除了这些直接的属性,MvvmCross还拥有“自定义绑定”功能。
MvvmCross默认提供的“自定义绑定”列表位于AndroidBindingBuilder中的CanExecute
- https://github.com/MvvmCross/MvvmCross/blob/v3/Cirrious/Cirrious.MvvmCross.Binding.Droid/MvxAndroidBindingBuilder.cs#L79
FillTargetBindings
一些插件(特别是 registry.RegisterCustomBindingFactory<TextView>("Text",
textView => new MvxTextViewTextTargetBinding(textView));
registry.RegisterPropertyInfoBindingFactory((typeof(MvxAutoCompleteTextViewPartialTextTargetBinding)),
typeof(AutoCompleteTextView), "PartialText");
registry.RegisterPropertyInfoBindingFactory(
typeof(MvxAutoCompleteTextViewSelectedObjectTargetBinding),
typeof(AutoCompleteTextView),
"SelectedObject");
registry.RegisterPropertyInfoBindingFactory(typeof(MvxCompoundButtonCheckedTargetBinding),
typeof(CompoundButton), "Checked");
registry.RegisterPropertyInfoBindingFactory(typeof(MvxSeekBarProgressTargetBinging), typeof(SeekBar),
"Progress");
registry.RegisterCustomBindingFactory<View>("Visible",
view => new MvxViewVisibleBinding(view));
registry.RegisterCustomBindingFactory<View>("Hidden",
view => new MvxViewHiddenBinding(view));
registry.RegisterCustomBindingFactory<ImageView>("Bitmap",
imageView => new MvxImageViewBitmapTargetBinding(imageView));
registry.RegisterCustomBindingFactory<ImageView>("DrawableId",
imageView => new MvxImageViewDrawableTargetBinding(imageView));
registry.RegisterCustomBindingFactory<ImageView>("DrawableName",
imageView => new MvxImageViewDrawableNameTargetBinding(imageView));
registry.RegisterCustomBindingFactory<ImageView>("AssetImagePath",
imageView => new MvxImageViewImageTargetBinding(imageView));
registry.RegisterCustomBindingFactory<MvxSpinner>("SelectedItem",
spinner =>
new MvxSpinnerSelectedItemBinding(
spinner));
registry.RegisterCustomBindingFactory<AdapterView>("SelectedItemPosition",
adapterView =>
new MvxAdapterViewSelectedItemPositionTargetBinding
(adapterView));
registry.RegisterCustomBindingFactory<MvxListView>("SelectedItem",
adapterView =>
new MvxListViewSelectedItemTargetBinding
(adapterView));
registry.RegisterCustomBindingFactory<RatingBar>("Rating",
ratingBar => new MvxRatingBarRatingTargetBinding(ratingBar));
registry.RegisterCustomBindingFactory<View>("LongClick",
view =>
new MvxViewLongClickBinding(view));
registry.RegisterCustomBindingFactory<MvxRadioGroup>("SelectedItem",
radioGroup => new MvxRadioGroupSelectedItemBinding(radioGroup));
)也添加了自己的绑定。
有关添加自定义绑定的信息,请参阅http://slodge.blogspot.co.uk/2013/06/n28-custom-bindings-n1-days-of-mvvmcross.html
关于MvvmCross自定义控件,动画和地图上的N + 1主题也值得关注 - 它们为自定义绑定提供了替代机制。
有关MvvmCross绑定的更多信息,请参阅https://github.com/MvvmCross/MvvmCross/wiki/Databinding