Apple Pencil点击手势识别问题

Question

我已经实现了

UIPencilInteractionDelegate

来检测苹果铅笔双击，如下所示。

UIPencilInteraction *pencilInteraction = [[UIPencilInteraction alloc] init];
pencilInteraction.delegate = self;
[self.view addInteraction:pencilInteraction];

委托方法实现

- (void)pencilInteractionDidTap:(UIPencilInteraction *)interaction{
    NSLog(@"Detected");
}

但是，上述实现无法检测到双击手势。会出现什么错误？

Answer 1

替代的详细 UIKit 文档是 https://learn.microsoft.com/en-us/dotnet/api/uikit?view=xamarin-ios-sdk-12