在Swift中,如何在UISearchbar中添加一个包含字符串的URL并在Safari中自动打开它?
问题描述:
我正在研究一个应用程序,该应用程序将在您输入文本的地方有一个搜索栏。在Swift中,如何在UISearchbar中添加一个包含字符串的URL并在Safari中自动打开它?
我想要应用程序然后打开“www.example.com/”搜索栏中输入的文本“,但唯一遇到的问题是它实际上试图打开www.example.com/dncode(它是不是一个真正的URL)。
任何帮助,将不胜感激。
感谢。
import UIKit
class ViewController: UIViewController, UISearchBarDelegate {
//connection that ties search bar in view to input for viewcontroller
@IBOutlet weak var searchbar: UISearchBar!
override func viewDidLoad() {
super.viewDidLoad()
searchbar.delegate = self
}
//activates keyboard etc when searchbar clicked
func searchBarSearchButtonClicked(_ searchbar: UISearchBar) {
searchbar.resignFirstResponder()
//(dncode) is string that will equal text as entered into search bar
let dncode = String()
searchbar.text! = dncode
if let url = URL (string: "https://www.example.com/(dncode)")
{
//this section to check and auto open URL in default browser "Safari"
if #available(iOS 10.0, *)
{
UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
UIApplication.shared.openURL(url)
}
}
}
}
答
要设置搜索栏的等于你DNCODE变量,而不是反之亦然文本。 你必须改变你的实现:
func searchBarSearchButtonClicked(_ searchbar: UISearchBar) {
searchbar.resignFirstResponder()
//(dncode) is string that will equal text as entered into search bar
guard let dncode = searchbar.text else { return }
if let url = URL (string: "https://www.example.com/(dncode)") {
//this section to check and auto open URL in default browser "Safari"
if #available(iOS 10.0, *) {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
} else {
UIApplication.shared.openURL(url)
}
}
}
+0
如果让url = URL(字符串:“https://www.example.com/(dncode)”),您还必须替换:if let url = URL(string:“https://www.example.com/ \(DNCODE)“) – iLandes
答
您必须更换:
let dncode = String()
searchbar.text! = dncode
if let url = URL (string: "https://www.example.com/(dncode)")
通过
guard let dncode = searchbar.text else { return }
if let url = URL (string: "https://www.example.com/\(dncode)")
我不明白什么是DNCODE在你的代码,它只是连接空字符串?你能给更多的精度吗?您想在Safari中打开哪个网址? – iLandes