android 用流打开网页

public class Test extends Activity { 

 @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); 

 WebView webview = new WebView(this); 

 setContentView(webview); 

 try { 

 InputStream fin = getAssets().open("index.html"); 

 byte[] buffer = new byte[fin.available()]; fin.read(buffer); 

 fin.close(); 

 webview.loadData(new String(buffer), "text/html", "UTF-8"); } 

catch (IOException e) { e.printStackTrace(); } 

 } 

}

file 'index.html'在assets/ 文件夹下