在 UITextView 中单击 url 时选择浏览器

Question

我的UITextView 中有一个 URL 链接。在我的 iPhone 中，有 safari 和 chrome 应用程序。每当我单击 URL 链接时，我想在弹出视图中列出 safari 和 Chrome（以及手机中的所有其他浏览器），以便用户可以选择他们想要打开 url 的浏览器。现在它总是打开 safari，因为它是我手机中的默认浏览器。有什么办法可以选择浏览器打开网址吗？我知道有这个代表

func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange) -> Bool {
        // Got the url here. how can i force this url to open in chrome
        return true
    }

但是我怎样才能强制这个 url 在 chrome 或任何其他浏览器中打开？以及如何在一个视图中列出所有可用的浏览器？

Answer 1

总结一下，

func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange) -> Bool {
    let actionSheet = UIAlertController(title: "Where do you want to open it", message: "", preferredStyle: .actionSheet)

    if UIApplication.shared.canOpenURL(URL(string: "http://www.stackoverflow.com")!) {
        actionSheet.addAction(UIAlertAction(title: "Safari", style: .default, handler: {
            (alert: UIAlertAction!) -> Void in
            UIApplication.shared.open(URL(string: "http://www.stackoverflow.com")!, options: [:], completionHandler: nil)
        }))
    }

    if UIApplication.shared.canOpenURL(URL(string: "googlechrome://www.stackoverflow.com")!) {
        actionSheet.addAction(UIAlertAction(title: "Chrome", style: .default, handler: {
            (alert: UIAlertAction!) -> Void in
            UIApplication.shared.open(URL(string: "googlechrome://www.stackoverflow.com")!, options: [:], completionHandler: nil)
        }))
    }

    if UIApplication.shared.canOpenURL(URL(string: "firefox://open-url?url=http://www.stackoverflow.com")!) {
        actionSheet.addAction(UIAlertAction(title: "Fire Fox", style: .default, handler: {
            (alert: UIAlertAction!) -> Void in
            UIApplication.shared.open(URL(string: "firefox://open-url?url=http://www.stackoverflow.com")!, options: [:], completionHandler: nil)
        }))
    }

    if UIApplication.shared.canOpenURL(URL(string: "opera-http://www.stackoverflow.com")!) {
        actionSheet.addAction(UIAlertAction(title: "Opera", style: .default, handler: {
            (alert: UIAlertAction!) -> Void in
            UIApplication.shared.open(URL(string: "opera-http://www.stackoverflow.com")!, options: [:], completionHandler: nil)
        }))
    }

    actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))
    self.present(actionSheet, animated: true, completion: nil)

    return false
}

Answer 2

目前我找不到任何列出所有浏览器的 API。

您可以使用canOpenURL: 方法手动检查是否安装了特定应用程序。

- (BOOL)isSafariInstalled {
    return [[UIApplication sharedApplication] canOpenURL: [NSURL URLWithString:@"http://google.com"]];
}

- (BOOL)isChromeInstalled {
    return [[UIApplication sharedApplication] canOpenURL: [NSURL URLWithString:@"googlechrome://"]];
}

- (BOOL)isOperaInstalled {
    return [[UIApplication sharedApplication] canOpenURL: [NSURL URLWithString:@"opera-http://google.com"]];
}

有关 Chrome 的更多信息 - 请查看Docs

Answer 3

我没试过，只是检查一下。返回 false 到 shouldInteractWith delagte 方法。你这个委托方法为你的东西

func textView(_ textView: UITextView, shouldInteractWith URL: URL, in characterRange: NSRange) -> Bool {
        // Got the url here. how can i force this url to open in chrome

        //here do your stuffs to show popup or something & based on selection launch url with specific browsers

        return false //to restrict open automatically
 }