ios - 导入文本和图像 swift Map Kit

Question

我正在尝试根据在我的 map View 中选择的图钉将特定图像和文本文件嵌入到我的第二个 View Controller 中。目前我的头衔正在通过 segue 转移。我的想法是将文本文件和图像命名为与标题相同的名称，以便在找到标题时正确选择它们。

EG: Title = big ben : title = "big ben"因此选择图像 title.png 和 title.txt但是我在实现这个时遇到了麻烦，因为我不确定如何告诉 swift 从 Assets 文件夹中选择图像和文本文件。

我目前有 segue 并准备 segue 实现为:

func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
    if control == view.rightCalloutAccessoryView {
        if let artworkPin = view.annotation as? Artwork {
            performSegue(withIdentifier: "no", sender: artworkPin)
        }
    }
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if let identifier = segue.identifier {
        if identifier == "no" {
            if let artworkPin = sender as? Artwork {
                let ViewTwo = segue.destination as! ViewTwo
                ViewTwo.artworkPin = artworkPin
            }
        }
    }
}

}

我的第二个 View 类是:

@IBOutlet weak var art_image: UIImageView!

@IBOutlet weak var art_desc: UITextView!

@IBOutlet weak var art_title: UILabel!
var artworkPin: Artwork!



override func viewDidLoad() {
    super.viewDidLoad()
    art_title.text = artworkPin.title




}

我怎样才能快速从 Assets 文件夹中提取？我在下面附上了我的完整代码: ViewControllerOne

ViewTwo

Answer 1

当在 XCAssets 中存储非图像文件时，您应该使用 NSDataAsset 来访问它们的内容

引用:https://developer.apple.com/library/ios/documentation/UIKit/Reference/NSDataAsset_Class/

 func readBundle(file:String) -> String
{
    var res = ""
    if let asset = NSDataAsset(name: file) , let string = String(data:asset.data, encoding: String.Encoding.utf8){
        res = string
    }
    return res
}

在第二个 View Controller 中加载图像

@IBOutlet weak var art_image: UIImageView!

@IBOutlet weak var art_desc: UITextView!

@IBOutlet weak var art_title: UILabel!
var artworkPin: Artwork!



override func viewDidLoad() {
    super.viewDidLoad()
    art_title.text = readBundle(artworkPin.title)
art_image.image = UIImage(named:"PinSample")

}

注意:资源图片名称和代码中的名称要一致