Question

我正在尝试在故事板Swift 2.3 iOS应用程序中创建WebView。但是，每当我使用WebView导航到View时，应用程序崩溃。我发布了WebView的故事板和代码。这是否表明我做错了什么？

故事板场景：

<!--WebView View-->
    <scene sceneID="oin-Tm-kjC">
        <objects>
            <viewController title="WebView View" id="iti-7S-ISp" customClass="webViewViewController" sceneMemberID="viewController">
                <layoutGuides>
                    <viewControllerLayoutGuide type="top" id="3bg-3D-Wcg"/>
                    <viewControllerLayoutGuide type="bottom" id="Mnm-nM-yzb"/>
                </layoutGuides>
                <view key="view" contentMode="scaleToFill" id="gnf-vw-fwi">
                    <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
                    <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                    <subviews>
                        <webView contentMode="scaleToFill" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="rVb-rt-chb">
                            <rect key="frame" x="0.0" y="64" width="375" height="603"/>
                            <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                            <color key="backgroundColor" red="0.36078431370000003" green="0.38823529410000002" blue="0.4039215686" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                            <connections>
                                <outlet property="delegate" destination="iti-7S-ISp" id="E7m-JN-oGx"/>
                            </connections>
                        </webView>
                    </subviews>
                    <color key="backgroundColor" white="1" alpha="1" colorSpace="calibratedWhite"/>
                </view>
                <connections>
                    <outlet property="webView" destination="rVb-rt-chb" id="ldC-1p-1XM"/>
                </connections>
            </viewController>
            <placeholder placeholderIdentifier="IBFirstResponder" id="Dj4-qu-aUe" userLabel="First Responder" sceneMemberID="firstResponder"/>
        </objects>
        <point key="canvasLocation" x="248.80000000000001" y="-631.0344827586207"/>
    </scene>

webViewViewController.swift：

import UIKit

class webViewViewController: UIViewController {

    @IBOutlet weak var webView: UIWebView!

    let url = "https://www.google.com"

    override func viewDidLoad() {
        super.viewDidLoad()

        let nsUrl = NSURL(string: url)
        let nsUrlRequest = NSURLRequest(URL: nsUrl!)
        webView.loadRequest(nsUrlRequest)
    }
}

我在控制台中看到这一行：“Interface Builder文件中的未知类webViewViewController”

后跟：“***因未捕获的异常而终止应用程序'NSUnknownKeyException'，原因：'[setValue：forUndefinedKey：]：此类不是键值webViewViewController的键值编码。”

此外，如果我删除了与webViewViewController.swift的耦合，应用程序运行正常。在这种情况下，它只显示一个空的UIWebView。

Answer 1

import UIKit

class webViewViewController: UIViewController {

    @IBOutlet weak var webView: UIWebView!

    let url = "https://www.google.com"

    override func viewDidLoad() {
        super.viewDidLoad()

        let nsUrl = NSURL(string: url)
        let nsUrlRequest = NSURLRequest(url: nsUrl! as URL)
        webView.loadRequest(nsUrlRequest as URLRequest)
    }
}

UIWebView正在崩溃应用程序

1 个答案: