我可以在Android-Kotlin的侦听器Lambda中调用超级吗？

Question

我正在尝试覆盖WebView的下载侦听器，以使其能够在外部浏览器中打开不属于我们的网站，而不是将其加载到Webview中。事情是，我想将代码简化成这样]

webView?.setDownloadListener { url, userAgent, contentDisposition, mimetype, contentLength ->
        if (!url.contains("mydomain")) {
            CLog.v("InternalWebviewFragment.configWebView().setDownloadListener() isNOTmydomain url: $url")
            val i = Intent(Intent.ACTION_VIEW, Uri.parse(url))
            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
            activity?.startActivity(i)

        }else{
            super(url, userAgent, contentDisposition, mimetype, contentLength)
        }
    }

但是，我打算对确实属于我们域的url进行super的调用时说，该调用只能在点的左手使用。当我尝试键入

super.onDownloadStart

给出unresolved reference error。

当网址是我们域的一部分时，如何使Webview侦听器照常营业？超级调用仅在非lambda方法中可用吗？

Answer 1

经过许多测试，@ Demigod的方法被证明是正确的方法。它只是需要同时使用应弃用的和应有的ShouldOverrideUrlLoading当前方法，here

        // APIs up to 23 need this method
        override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
            if (!url.contains("mydomain")) {
                // InternalWebviewFragment external (non mydomain) urls will be dispatched to an external browser
                CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoadingOLD() isNotmydomain url: $url")
                val i = Intent(Intent.ACTION_VIEW, Uri.parse(url))
                activity?.startActivity(i)
                CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoadingOLD() isNotmydomain  After Intent")
                return true //InternalWebviewFragment this avoids the webview to load the url we've just sent to the browser
            }
            CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoadingOLD() ismydomain url: $url")
            // mydomain urls should load fine in the webview
            view?.loadUrl(url)
            return super.shouldOverrideUrlLoading(view, url)

        }
        // for APIs 24+
        override fun shouldOverrideUrlLoading(
            view: WebView?,
            request: WebResourceRequest?
        ): Boolean {
            if (!request?.url.toString().contains("mydomain")) {
                // InternalWebviewFragment external (non mydomain) urls will be dispatched to an external browser
                CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoading2() isNotmydomain url: ${request?.url.toString()}")
                val i = Intent(Intent.ACTION_VIEW, Uri.parse(request?.url.toString()))
                activity?.startActivity(i)
                CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoading2() isNotmydomain After Intent")
                return true //InternalWebviewFragment this avoids the webview to load the url we've just sent to the browser
            }
            CLog.v("InternalWebviewFragment.getSimpleWebViewClientUrlLoading().shouldOverrideUrlLoading() ismydomain url: $url")
            // mydomain urls should load fine in the webview
            view?.loadUrl(request?.url.toString())
            return super.shouldOverrideUrlLoading(view, request)
        }