如何连接 webviewclient 和 Chromeweb 视图客户端

Posted 2023-05-07

【中文标题】如何连接 webviewclient 和 Chromeweb 视图客户端

【英文标题】：How to connect webviewclient and Chromeweb view client

【发布时间】：2018-12-16 05:06:56

【问题描述】：

我已经在我的 web 视图中创建了进度条。所以它会在加载 web 视图后消失。现在我想添加 error.html 页面以显示没有互联网消息..我有代码但我不知道如何连接他们...帮帮我

这是我的代码：

    protected void onCreate(Bundle savedInstanceState) 
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            mAdView = findViewById(R.id.adView);
            AdRequest adRequest = new AdRequest.Builder().build();
            mAdView.loadAd(adRequest);

            progressBar = (ProgressBar) findViewById(R.id.progressBar);
            textView = (TextView) findViewById(R.id.tvLoadingPercentage);
            //to hide progressbar after loading part 2
            liProgressContainer = (LinearLayout) findViewById(R.id.liProgressContainer);


            webView = (WebView) findViewById(R.id.webView);
            webView.setWebViewClient(new MyWebViewClient());
            WebSettings browserSetting = webView.getSettings();
            browserSetting.setjavascriptEnabled(true);
            webView.loadUrl(url);
            webView.setWebChromeClient(new WebChromeClient() 
                public void onProgressChanged(WebView view, int progress) 

                    progressBar.setProgress(progress);
                    textView.setText(progress + " %");
               
            );
        

 private class MyWebViewClient extends WebViewClient 


        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) 
            liProgressContainer.setVisibility(View.VISIBLE);
            super.onPageStarted(view, url, favicon);
        

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) 
            //progressBar.setVisibility(View.VISIBLE);
            view.loadUrl(url);
            return true;
            //return super.shouldOverrideUrlLoading(view, url);
        

        @Override
        public void onPageFinished(WebView view, String url) 
            super.onPageFinished(view, url);
            liProgressContainer.setVisibility(View.GONE);

            //hide header part
        
    

这里是error.html代码

 webView.setWebViewClient(new WebViewClient()
            public void onRecievedError(WebView view ,int errorCode,String description ,String failingUrl)
            
                webView.loadUrl("file:///android_asset/error.html");
            
        );

之后

【问题讨论】：

很抱歉你的问题我不清楚

我想在上面的大代码中添加error.html代码

【参考方案1】：

用此代码替换您的 MyWebViewClient ：

private class MyWebViewClient extends WebViewClient 


    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) 
        liProgressContainer.setVisibility(View.VISIBLE);
        super.onPageStarted(view, url, favicon);
    

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) 
        //progressBar.setVisibility(View.VISIBLE);
        view.loadUrl(url);
        return true;
        //return super.shouldOverrideUrlLoading(view, url);
    

    @Override
    public void onPageFinished(WebView view, String url) 
        super.onPageFinished(view, url);
        liProgressContainer.setVisibility(View.GONE);

        //hide header part
    

    @Override
    public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) 
        super.onReceivedError(view, request, error);
        view.loadUrl("file:///android_asset/error.html");