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swiftios11ios12

Swift 4 WebkitView URL change not doing its job

I am having the following situation.

I am using a WebkitView to display some session information. In most places it's generated when the ViewController comes to life, but I have one particular view in which I have to reload it on user interactions with buttons that change to next or previous month.

I have the following code:

// This is my connection to the storyboard element
@IBOutlet weak var areaNotasMes: WKWebView!

After that I have a function that does the URL handling:

func actualizarUrlNotasMes(fechaNueva: Date) {
    let formateadorAdicional = DateFormatter()
    formateadorAdicional.dateFormat = "yyyyMM"

    let url = URL(string: "https://myurl/\(formateadorAdicional.string(from: fechaNueva))")

    areaNotasMes.load(URLRequest(url: url!))
}

And I have a button event that uses the function with the next YEAR_MONTH combination like this:

@IBAction func mesSigPressed(_ sender: UIButton) {
    // Some more code to get the fechaActual variable
    actualizarUrlNotasMes(fechaNueva: fechaActual)
    // Some more code
}

So, basically what's happening is that it loads the first time I open the ViewController, but when I click on the button to change to the next month, the date gets changed, correctly generated and passed to the function. It generates the correct URL, but when the areaNotasMes.load(...) function runs, nothing refreshes on the WebKitView. I tried adding areaNotasMes.reload(), but it also did nothing. Do I have to like destroy and recreate the WebKitView each time I change the URL? Or am I not handling the URL change correctly?

Also, the console pops up some of these messages from time to time, not always:

[BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C5.1:2][0x7fea2d201de0] get output frames failed, state 8196
TIC Read Status [5:0x0]: 1:57
Solution

  • I think I actually managed to fix this in the most random way. I thought maybe there's some reload function (except for .reload()) so using the auto completion of syntax, I came up with the following command:

    areaNotasMes.reloadInputViews()

    Apparently .reloadInputViews() is a void function inherited from UIView which updates the custom input and accessory views when the object is the first responder. You can check it here: reloadInputViews()

    It does send some Error Domain=NSURLErrorDomain Code=-999 "(null)" although it actually works as supposed and refreshes the WebKitView information.

    I hope this helps someone else.