我正在使用此代码将我的应用程序上的主题标签设为链接:

import UIKit

extension UITextView {

func resolveHashTags(){

    // turn string in to NSString
    let nsText:NSString = self.text

    // this needs to be an array of NSString.  String does not work.
    let words:[NSString] = nsText.componentsSeparatedByString(" ")

    // you can't set the font size in the storyboard anymore, since it gets overridden here.
    let attrs = [
        NSFontAttributeName : UIFont.systemFontOfSize(17.0)
    ]

    // you can staple URLs onto attributed strings
    let attrString = NSMutableAttributedString(string: nsText as String, attributes:attrs)

    // tag each word if it has a hashtag
    for word in words {

        // found a word that is prepended by a hashtag!
        // homework for you: implement @mentions here too.
        if word.hasPrefix("#") {

            // a range is the character position, followed by how many characters are in the word.
            // we need this because we staple the "href" to this range.
            let matchRange:NSRange = nsText.rangeOfString(word as String)

            // convert the word from NSString to String
            // this allows us to call "dropFirst" to remove the hashtag
            var stringifiedWord:String = word as String

            // drop the hashtag
            stringifiedWord = String(stringifiedWord.characters.dropFirst())

            // check to see if the hashtag has numbers.
            // ribl is "#1" shouldn't be considered a hashtag.
            let digits = NSCharacterSet.decimalDigitCharacterSet()

            if let numbersExist = stringifiedWord.rangeOfCharacterFromSet(digits) {
                // hashtag contains a number, like "#1"
                // so don't make it clickable
            } else {
                // set a link for when the user clicks on this word.
                // it's not enough to use the word "hash", but you need the url scheme syntax "hash://"
                // note:  since it's a URL now, the color is set to the project's tint color
                attrString.addAttribute(NSLinkAttributeName, value: "myapplink://\(stringifiedWord)", range: matchRange)
            }

        }
    }

    // we're used to textView.text
    // but here we use textView.attributedText
    // again, this will also wipe out any fonts and colors from the storyboard,
    // so remember to re-add them in the attrs dictionary above
    self.attributedText = attrString
}

}

我想让它在点击主题标签时打开我的搜索页面的 View Controller ，并在我的应用程序中搜索该主题标签。

我怎样才能建立这种联系？

最佳答案

你可以做的是在你的 View Controller 中搜索主题标签，有一个变量可以存储你需要的信息。

var tag:String = ""

然后在你的 TextView 中

let storyboard = UIStoryboard(name: "yourStoryBoard", bundle: nil)
        let vc:YourViewController = storyboard.instantiateViewControllerWithIdentifier("yourViewControllersID") as! YourViewController
        vc.tag = attrString
        self.presentViewController(vc, animated: true, completion: nil)

现在您新呈现的 View Controller 会将您存储到标签变量中的数据

关于ios - 如何使 UITextView 主题标签链接打开另一个 View Controller ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37582299/