Question

If possible, how can I add a webview to my layout with only using code in my MainActivity.java class file.

Answer 1

WebView webView = new WebView(this);
*setting up webview* 
setContentView(webview);

or

ViewGroup yourLayout = (ViewGroup) LayoutInflater.from(this).inflate(R.layout.your_layout, null); 
setContentView(yourLayout);

WebView webView = new WebView(this);
*setting up webview*    
yourLayout.addView(webView);