NSItemProvider.LoadObjectAsync 方法

定义

命名空间:

Foundation

程序集:

Xamarin.iOS.dll

重载

LoadObjectAsync(Class)
LoadObjectAsync(Class, NSProgress)
LoadObjectAsync<T>()
LoadObjectAsync<T>(NSProgress)

LoadObjectAsync(Class)

[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.WatchOS, 4, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 13, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual System.Threading.Tasks.Task<Foundation.INSItemProviderReading> LoadObjectAsync (ObjCRuntime.Class aClass);

abstract member LoadObjectAsync : ObjCRuntime.Class -> System.Threading.Tasks.Task<Foundation.INSItemProviderReading>
override this.LoadObjectAsync : ObjCRuntime.Class -> System.Threading.Tasks.Task<Foundation.INSItemProviderReading>

参数

aClass

Class

返回

Task<INSItemProviderReading>

表示异步 LoadObject 操作的任务。 TResult 参数的值的类型为 System.Action<Foundation.INSItemProviderReading，Foundation.NSError>。

属性

IntroducedAttribute

注解

LoadObjectAsync 方法适合用于 C# 异步，方法是将控件返回到具有表示操作的 Task 的调用方。

内容待定。

LoadObjectAsync(Class, NSProgress)

[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.WatchOS, 4, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 13, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 11, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual System.Threading.Tasks.Task<Foundation.INSItemProviderReading> LoadObjectAsync (ObjCRuntime.Class aClass, out Foundation.NSProgress result);

abstract member LoadObjectAsync : ObjCRuntime.Class *  -> System.Threading.Tasks.Task<Foundation.INSItemProviderReading>
override this.LoadObjectAsync : ObjCRuntime.Class *  -> System.Threading.Tasks.Task<Foundation.INSItemProviderReading>

参数

aClass

Class

result

NSProgress

返回

Task<INSItemProviderReading>

属性

IntroducedAttribute

LoadObjectAsync<T>()

[ObjCRuntime.TV(11, 0)]
[ObjCRuntime.Watch(4, 0)]
public System.Threading.Tasks.Task<T> LoadObjectAsync<T> () where T : Foundation.NSObject, Foundation.INSItemProviderReading;

member this.LoadObjectAsync : unit -> System.Threading.Tasks.Task<'T (requires 'T :> Foundation.NSObject and 'T :> Foundation.INSItemProviderReading)> (requires 'T :> Foundation.NSObject and 'T :> Foundation.INSItemProviderReading)

类型参数

T

返回

Task<T>

属性

TVAttribute WatchAttribute

LoadObjectAsync<T>(NSProgress)

[ObjCRuntime.TV(11, 0)]
[ObjCRuntime.Watch(4, 0)]
public System.Threading.Tasks.Task<T> LoadObjectAsync<T> (out Foundation.NSProgress result) where T : Foundation.NSObject, Foundation.INSItemProviderReading;

member this.LoadObjectAsync :  -> System.Threading.Tasks.Task<'T (requires 'T :> Foundation.NSObject and 'T :> Foundation.INSItemProviderReading)> (requires 'T :> Foundation.NSObject and 'T :> Foundation.INSItemProviderReading)

类型参数

T

参数

result

NSProgress

返回

Task<T>

属性

TVAttribute WatchAttribute