How to open a new layout after button click in android

Use the below code,

 Button next = (Button) findViewById(R.id.mybutton1);

next.setOnClickListener(new View.OnClickListener()
{
            public void onClick(View view)
          {
                Intent myIntent = new Intent(view.getContext(), my_activity.class);
                startActivityForResult(myIntent, 0);
            }

   });

How to write static HTML code in WebView control

Apply the below code,

webView = (WebView) findViewById(R.id.webView1);

webViewSettings = webView.getSettings();

webViewSettings.setJavaScriptCanOpenWindowsAutomatically(true);

webViewSettings.setJavaScriptEnabled(true);

webViewSettings.setBuiltInZoomControls(true);

webViewSettings.setPluginState(PluginState.ON);

webView.getSettings().setJavaScriptEnabled(true);

String data="<h1>welcome to Android example..Write your own HTML code here..</h1><br>";

webView.loadData(data, "text/html","utf-8");