Focus相关的Picker控件方法

Question

我有一个带有 UIPicker 的 iOS + Watch 应用程序，我不断收到与其相关的日志，但我无法弄清楚与 Watch 应用程序相关的日志：

[default] -[SPRemoteInterface handlePlistDictionary:fromIdentifier:]:2977: ComF:->Plugin method .pickerFocus is not implemented by the controller (null)

[default] -[SPRemoteInterface handlePlistDictionary:fromIdentifier:]:2977: ComF:->Plugin method .pickerClearFocus is not implemented by the controller (null)

我查看了文档，我能找到的最接近的东西只是 pickerDidFocus() 方法，它似乎在谈论我遇到的一般问题领域，但 没有明确的实施思路特别是 .pickerClearFocus 和 .pickerFocus.

Answer 1

我确实为我的案例找到了解决方案 (WKInterfaceButton)。 button reference outlet和button sent action outlet必须在同一个class。 The message is shown when selector outlet references to the view and the action references the view controller.

单元格：

class aCellView: NSObject {
  var delegate: WKInterfaceController? = nil

  // The action outlet
  @IBAction func doSomeThing() {
    self.delegate!.doSomeThing()
  }
}

控制器：

class HomeInterfaceController: WKInterfaceController {
  // ... where you implement your cell
  cell.delegate = self
  // ... where you implement your cell
}

Answer 2

与“.pickerSettle”相同...

"I'm having the same problem. Looks like a bug of the iOS or XCode, because the public API does not incude a method ".pickerSettle"，现有方法 "pickerDidSettle" 实际上调用得很好。一切似乎都按预期工作。"

来自：

https://forums.developer.apple.com/thread/68971

Focus相关的Picker控件方法

Picker control methods related to Focus

uipickerview

ios

swift

watchkit