如何在 NativeScript 中获取对 self.view 和 self.view.frame 的引用

How to get reference to self.view and self.view.frame in NativeScript

我正在尝试在 iPad 上调用 NativeScript 中的 UIPrinterPickerController。我已经找到我需要拨打的电话,它在这里:

UIPrinterPickerController.presentFromRectInViewAnimatedCompletionHandler(rect: CGRect, view: UIView, animated: boolean, completion: (arg1: UIPrinterPickerController, arg2: boolean, arg3: NSError) => void): boolean;

在示例中,我看到 rect 参数是对 self.view.frame 的引用,view 参数是对 self.view 的引用。我如何在 NativeScript 中找到这些引用?我已经尝试了 ui.view 模块,但它不起作用。我已经从 pageLoaded 事件中尝试了 args.object,但没有用。任何帮助将不胜感激。

// My code here
if ( ! UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiomPad) {
    found = printPicker.presentAnimatedCompletionHandler(false, completionHandler);
} else {
    found = printPicker.presentFromRectInViewAnimatedCompletionHandler(view.frame, view, false, completionHandler);
}

其实你们很亲近;页面的 UIView;将是:

var pageLoaded = function(args) {
  var page = args.object;  // Get the NativeScript Page object
  var uiView = page.ios;   // Get the underlying iOS native Control
}