Android WebView, Scaling Image to fit the screen

I had the same issue and doing this worked just fine:

Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth();

String data = "<html><head><title>Example</title><meta name=\"viewport\"\"content=\"width="+width+", initial-scale=0.65 \" /></head>";
data = data + "<body><center><img width=\""+width+"\" src=\""+url+"\" /></center></body></html>";
webView.loadData(data, "text/html", null);

Edit: As this remained as the accepted answer, here is a better solution (all credit to Tony below):

WebView content = (WebView) findViewById(R.id.webView1);
content.loadDataWithBaseURL(null, "<style>img{display: inline;height: auto;max-width: 100%;}</style>" + post.getContent(), "text/html", "UTF-8", null);