ios - 搜索栏和网页 View

Question

我正在尝试构建一个简单的网络浏览器。网络浏览器本身工作得很好，但是当我尝试在搜索栏中搜索网址时，我无法返回键盘来打开网站。我该如何解决这个问题？

@IBOutlet weak var searchBar: UISearchBar!
@IBOutlet weak var webView: UIWebView!

func searchBarSearchButtonClicked(searchBar: UISearchBar) {
    searchBar.resignFirstResponder()
    let text = searchBar.text
    let urlSB = NSURL(string: text!)
    let reqSB = NSURLRequest(url:urlSB! as URL)
    self.webView!.loadRequest(reqSB as URLRequest)
}

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.

    let url = NSURL(string: "https://www.google.com")
    let req = NSURLRequest(url:url! as URL)
    self.webView!.loadRequest(req as URLRequest)

}

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

Answer 1

我为你写了一个演示:

结果:

第 1 步:

第 2 步:输入您要访问的网址。

第3步:结果，webView加载您在searchBar中输入的url:

代码如下:

import UIKit

class ViewController: UIViewController, UISearchBarDelegate {

@IBOutlet weak var searchBar: UISearchBar!

@IBOutlet weak var webView: UIWebView!

override func viewDidLoad() {
    super.viewDidLoad()

    let url = NSURL(string: "https://www.baidu.com")
    let req = NSURLRequest(url:url! as URL)
    self.webView!.loadRequest(req as URLRequest)

    searchBar.delegate = self

}

func searchBarSearchButtonClicked(searchBar: UISearchBar) {
    searchBar.resignFirstResponder()
    let text = searchBar.text
    let urlSB = NSURL(string: text!)
    let reqSB = NSURLRequest(url:urlSB! as URL)
    self.webView!.loadRequest(reqSB as URLRequest)
}

// MARK: - searchbar delegate
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {

    let urlStr =  "https://" + searchBar.text!

    let url = NSURL(string: urlStr)
    let req = NSURLRequest(url:url! as URL)
    self.webView!.loadRequest(req as URLRequest)

}

如果你的webView没有加载url，并报告:

App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.

您可以像下面这样进入info.plist打开ATS，或者搜索SO找到详细方法: