webview中setWebChromeClient和setWebClient区别

webview中setWebChromeClient和setWebClient区别

在用webview加载html页面时候，有时候会用到setWebClient和setWebChromeClient,他们之间的不同在于：

1.setWebClient就是帮助WebView处理各种通知、请求事件

onLoadResource

onPageStart

onPageFinish

onReceiveError

onReceivedHttpAuthRequest

webview1.setWebViewClient(new WebViewClient() {   
                    
            public void onReceivedError(WebView view, int errorCode, String description, String failingUrl)

{
// Handle the error

Toast.makeText(getApplicationContext(), "网络连接失败 ,请连接网络。", Toast.LENGTH_SHORT).show();

}

public
boolean shouldOverrideUrlLoading(WebView view, String url) {

view.loadUrl(url);

returntrue;

}

});

2.setWebChromeClient辅助WebView处理Javascript的对话框，网站图标，网站title，加载进度等

onCloseWindow(关闭WebView)

onCreateWindow()

onJsAlert (WebView上alert是弹不出来东西的，需要定制你的WebChromeClient处理弹出)

onJsPrompt

onJsConfirm

onProgressChanged

onReceivedIcon

onReceivedTitle

例如添加进度条：

webview1.setWebChromeClient(new WebChromeClient() 
        {          
            public void onProgressChanged(WebView view, int progress)   
            {   
                setProgress(progress * 100);     
                if(progress == 100){     
                    imageView1.setVisibility(View.GONE); 
                    tv1.setVisibility(View.GONE);
                    pb1.setVisibility(View.GONE);
                    fy1.setVisibility(View.GONE);
                }
            }
        }
        );