Android中监听webview监听是否加载完成

最新推荐文章于 2021-08-09 16:04:16 发布

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最新推荐文章于 2021-08-09 16:04:16 发布

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文章标签：移动开发 javascript java ViewUI

原文链接：http://www.cnblogs.com/wikiki/p/4957238.html

本文介绍如何在使用CordovaWebViewClient重写onPageStart、onPageFinished和onReceivedError方法来处理Fragment中包含的WebView的加载事件。通过设置WebViewClient，实现在不同Fragment间区分加载事件并进行相应的处理。

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之前写过一篇捕获Phoengap的webview事件的方法，主要是在实现了CordovaInterface的Activity中, 在onMessage中根据第一个参数的message name来判断webview的加载事件。不过如果是在Fragment中，一个Activity加载了多个包含了WebView的fragment的话，就无法在onMessage中判断到底是哪个WebView的加载事件。

经过尝试，发现，还是可以使用setWebViewClient的方式来，来重写WebViewClient的对应的onPageStart和onPageFinish等方法来处理加载事件

[java]
CordovaWebView webView = (CordovaWebView)findViewById(R.id.webView);

CordovaWebView webView = (CordovaWebView)findViewById(R.id.webView);[java] view plaincopyprint?CordovaInterface cordovaInterface = (CordovaInterface) context;

       CordovaWebViewClient cordovaWebViewClient = new CordovaWebViewClient(cordovaInterface, webView) {
           @Override
           public void onPageStarted(WebView view, String url, Bitmap favicon) {

               LogUtil.debug("onPageStarted " + url);
               super.onPageStarted(view, url, favicon);
               progressBar.setVisibility(View.VISIBLE);
           }

           @Override
           public void onPageFinished(WebView view, String url) {
               LogUtil.debug("onPageFinished " + url);
               super.onPageFinished(view, url);
               progressBar.setVisibility(View.GONE);
           }

           @Override
           public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
               LogUtil.debug("onReceivedError " + url);
               super.onReceivedError(view, errorCode, description, failingUrl);
               progressBar.setVisibility(View.GONE);
               errorView.setVisibility(View.VISIBLE);
           }
       };
       webView.setWebViewClient(cordovaWebViewClient);

       webView.loadUrl(url);

CordovaInterface cordovaInterface = (CordovaInterface) context;

        CordovaWebViewClient cordovaWebViewClient = new CordovaWebViewClient(cordovaInterface, webView) {
            @Override
            public void onPageStarted(WebView view, String url, Bitmap favicon) {

                LogUtil.debug("onPageStarted " + url);
                super.onPageStarted(view, url, favicon);
                progressBar.setVisibility(View.VISIBLE);
            }

            @Override
            public void onPageFinished(WebView view, String url) {
                LogUtil.debug("onPageFinished " + url);
                super.onPageFinished(view, url);
                progressBar.setVisibility(View.GONE);
            }

            @Override
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
                LogUtil.debug("onReceivedError " + url);
                super.onReceivedError(view, errorCode, description, failingUrl);
                progressBar.setVisibility(View.GONE);
                errorView.setVisibility(View.VISIBLE);
            }
        };
        webView.setWebViewClient(cordovaWebViewClient);

webView.loadUrl(url);

转载于:https://www.cnblogs.com/wikiki/p/4957238.html