我有一个非常简单的UIWebView,其中包含来自我的应用程序包的内容。我希望Web视图中的任何链接在Safari中打开,而不是在Web视图中打开。这可行吗?
我有一个非常简单的UIWebView,其中包含来自我的应用程序包的内容。我希望Web视图中的任何链接在Safari中打开,而不是在Web视图中打开。这可行吗?
把这段代码添加到UIWebView的委托中:
(编辑以检查导航类型。您还可以传递file://
请求,这将是相对链接)
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
if (navigationType == UIWebViewNavigationTypeLinkClicked ) {
[[UIApplication sharedApplication] openURL:[request URL]];
return NO;
}
return YES;
}
Swift 版本:
func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if navigationType == UIWebViewNavigationType.LinkClicked {
UIApplication.sharedApplication().openURL(request.URL!)
return false
}
return true
}
Swift 3 版本:
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool {
if navigationType == UIWebViewNavigationType.linkClicked {
UIApplication.shared.openURL(request.url!)
return false
}
return true
}
Swift 4版本:
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebView.NavigationType) -> Bool {
guard let url = request.url, navigationType == .linkClicked else { return true }
UIApplication.shared.open(url, options: [:], completionHandler: nil)
return false
}
更新
iOS 10已经弃用了openURL
方法:
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
if (navigationType == UIWebViewNavigationTypeLinkClicked ) {
UIApplication *application = [UIApplication sharedApplication];
[application openURL:[request URL] options:@{} completionHandler:nil];
return NO;
}
return YES;
}
switch
更为合适。 - SDJMcHattie如果有人想知道,Drawnonward的解决方案在Swift中会是这样的:
func webView(webView: UIWebView!, shouldStartLoadWithRequest request: NSURLRequest!, navigationType: UIWebViewNavigationType) -> Bool {
if navigationType == UIWebViewNavigationType.LinkClicked {
UIApplication.sharedApplication().openURL(request.URL)
return false
}
return true
}
UIWebViewDelegate
。 - Jay Mayu对于user306253的回答,我有一个快速的评论:当您尝试从代码中自己加载UIWebView时,要小心使用此方法,因为它会阻止它发生。
要避免这种情况(感谢Wade),您可以这样做:
if (inType == UIWebViewNavigationTypeLinkClicked) {
[[UIApplication sharedApplication] openURL:[inRequest URL]];
return NO;
}
return YES;
你可能还想处理UIWebViewNavigationTypeFormSubmitted
和UIWebViewNavigationTypeFormResubmitted
类型。
URL.host
属性。- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
static NSString *regexp = @"^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9-]*[a-zA-Z0-9])[.])+([A-Za-z]|[A-Za-z][A-Za-z0-9-]*[A-Za-z0-9])$";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regexp];
if ([predicate evaluateWithObject:request.URL.host]) {
[[UIApplication sharedApplication] openURL:request.URL];
return NO;
} else {
return YES;
}
}
当然,您可以根据需要调整正则表达式。
if (request.URL?.scheme != "file")
。 - David Douglasextension YourViewController: UIWebViewDelegate {
func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebView.NavigationType) -> Bool {
if let url = request.url, navigationType == UIWebView.NavigationType.linkClicked {
UIApplication.shared.open(url, options: [:], completionHandler: nil)
return false
}
return true
}
}
应用拒绝通知:
最终 UIWbView
已经被淘汰了,Apple 将不再接受其使用。
Apple 开始向所有仍在使用 UIWebView
的 App 所有者发送邮件:
废弃的 API 使用 - Apple 将停止接受使用 UIWebView
APIs 的 App 提交。
Apple 非常重视用户隐私,很明显他们不会允许存在安全问题的 webview。
因此请尽快从您的应用程序中删除 UIWebView。不要在新创建的应用程序中尝试使用 UIWebView
,如果可能,我建议使用 WKWebView
。
ITMS-90809: 废弃的 API 使用 - Apple 将停止接受使用 UIWebView APIs 的应用提交。请参阅 https://developer.apple.com/documentation/uikit/uiwebview 了解更多信息。
示例:
import UIKit
import WebKit
class WebInfoController: UIViewController,WKNavigationDelegate {
var webView : WKWebView = {
var webview = WKWebView()
return webview
}()
var _fileName : String!
override func viewDidLoad() {
self.view.addSubview(webView)
webView.fillSuperview()
let url = Bundle.main.url(forResource: _fileName, withExtension: "html")!
webView.loadFileURL(url, allowingReadAccessTo: url)
let request = URLRequest(url: url)
webView.load(request)
}
func webView(webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: NSError) {
print(error.localizedDescription)
}
func webView(webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("Strat to load")
}
func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {
print("finish to load")
}
}
class WebviewDelegate : UIWebViewDelegate {
public override bool ShouldStartLoad (UIWebView webView, NSUrlRequest request, UIWebViewNavigationType navigationType) {
if (navigationType == UIWebViewNavigationType.LinkClicked) {
UIApplication.SharedApplication.OpenUrl (request.Url);
return false;
}
return true;
}
}
被接受的答案不起作用。
如果您的页面通过Javascript加载URL,则navigationType
将是UIWebViewNavigationTypeOther
。不幸的是,这也包括背景页面加载,例如分析。
要检测页面导航,您需要将[request URL]
与[request mainDocumentURL]
进行比较。
这个解决方案适用于所有情况:
- (BOOL)webView:(UIWebView *)view shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)type
{
if ([[request URL] isEqual:[request mainDocumentURL]])
{
[[UIApplication sharedApplication] openURL:[request URL]];
return NO;
}
else
{
return YES;
}
}
- (BOOL)webView:(UIWebView *)inWeb shouldStartLoadWithRequest:(NSURLRequest *)inRequest navigationType:(UIWebViewNavigationType)inType {
if(inType != UIWebViewNavigationTypeOther) {
[[UIApplication sharedApplication] openURL:[inRequest URL]];
return NO;
}
return YES;
}
UIWebView
和UIWebViewDelegate
已弃用。您将无法使用它推送更新到Appstore。 参考
请使用WKWebView和WKNavigationDelegate
示例代码:
class YourClass: WKNavigationDelegate {
override public func viewDidLoad() {
super.viewDidLoad()
let webView = WKWebView()
webView.navigationDelegate = self
self.view.addaddSubview(webView)
}
public func webView(_ webView: WKWebView,
didReceive challenge: URLAuthenticationChallenge,
completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
let cred = URLCredential(trust: challenge.protectionSpace.serverTrust!)
completionHandler(.useCredential, cred)
}
public func webView(_ webView: WKWebView,
decidePolicyFor navigationAction: WKNavigationAction,
decisionHandler: @escaping (WKNavigationActionPolicy) -> Swift.Void) {
self.webView.load(navigationAction.request)
decisionHandler(.allow)
}
}