Question

我正在尝试在ImagePicker上创建一个叠加层，并发现我可以通过编程方式创建UIView，但我更喜欢使用我可以在Storyboard中操作的UIView。

从下面的代码片段中可以看出，我已经将UIImagePickerControllerDelegate分配给了我的ViewController，创建了图像选择器，并且有一个方法来分配我想要的叠加视图。如果我尝试引用UIView，它是与故事板中存在的UIView相关联的出口，则不会出现。如果If以编程方式创建它，那一切都很好。如何将它分配给我想在Storyboard中拖放控件的UIView？

提前感谢任何建议/指导。

干杯，卡尔

class ViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {  
// UIView for telemetry data  
@IBOutlet weak var telemetryPanel: UIView!  

...  

override func viewDidAppear(animated:bool) {  
      ...  
      let cameraImagePicker = UIImagePickerController()  
      ...  

      // Call method to create a custom overlay for the camera  
      cameraImagePicker.cameraOverlayView = self.customViewForImagePicker(cameraImagePicker)  

 }  

func customViewForImagePicker(imagePicker: UIImagePickerController!) -> UIView {  
    // TODO: - Assigning the view to the telemetry panel does not work  
// let view:UIView = self.telemetryPanel  
// view.backgroundColor = UIColor.whiteColor()  
// view.alpha = 0.25  
// return view  

    // Creating the view programmatically overlays it  
    let cameraAspectRatio:CGFloat = 4.0 / 3.0;  
    let screenSize = UIScreen.mainScreen().bounds.size  
    let imageWidth = floorf(Float(screenSize.width) * Float(cameraAspectRatio))  
    let view: UIView = UIView(frame: CGRectMake(0, screenSize.height-65, CGFloat(imageWidth), 65))  
    view.backgroundColor = UIColor.whiteColor()  
    view.alpha = 0.25  
    return view  

}

Answer 1

初始化在界面构建器中创建的视图时，您需要使用NSBundle.mainBundle().loadNibNamed()

加载它

查看this answer如何执行此操作。

使用Storyboard中的View for ImagePicker

1 个答案: