共用方式為

CALayerDelegate.WillDrawLayer(CALayer) 方法

  • 參考

定義

命名空間:
CoreAnimation
組件:
Xamarin.iOS.dll
組件:
Xamarin.Mac.dll

即將繪製時 layer 呼叫的方法。

[Foundation.Export("layerWillDraw:")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.WatchOS, 3, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 12, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual void WillDrawLayer (CoreAnimation.CALayer layer);
abstract member WillDrawLayer : CoreAnimation.CALayer -> unit
override this.WillDrawLayer : CoreAnimation.CALayer -> unit

參數

layer
CALayer

將重新繪製的圖層。

屬性
ExportAttribute IntroducedAttribute

適用於