Hello, WebView

1. android.permission.INTERNET
2. 拖一个webView到布局工具中
3. WebView webview =(WebView) findViewById(R.id.webview1);
4. webview.setWebViewClient(new XXXWebViewClient(...));
5. webview.setWebChromeClient(new XXXWebChromeClient(...));
6. 重载onKeyDown，拦截KEYCODE_BACK，定义其功能优先为网页后退操作
7. webview.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
   webview.getSettings().setJavaScriptEnabled(true);
   webview.loadUrl("http://m.qidian.com");

http://developer.android.com/guide/tutorials/views/hello-webview.html  
Hello, WebView - Android Developers

http://blog.163.com/hero_213/blog/static/398912142011539383380/ 
Android WebView小结