每当我尝试使用rangeOfString时，它都会在UITextView中找不到成员

Question

import UIKit

class ViewController: UIViewController {
    @IBOutlet weak var text: UITextView!

    override func viewDidLoad() {
        super.viewDidLoad()

      let boldRange = text.rangeOfString(NSLocalizedString("bold", comment: ""))
        // issue is here. 
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

每次使用rangeOfString时我都会遇到此问题，但我不知道如何解决它。

Answer 1

您需要访问文本视图的let boldRange = text.text.rangeOfString(NSLocalizedString("bold", comment: "")) 属性：

{{1}}