How does Android WebView nest Html?

LoadDataWithBaseURL (baseUrl = null/"about: blank ",......), BaseUrl is null or "about: blank" specifies the relative path.
WebView mainly calls three methods: LoadUrl, LoadData, and LoadDataWithBaseURL.
1. LoadUrl directly loads webpages and images and displays them (webpages, images, and gif images on a local or network)
2. LoadData display text and image content (simulator 1.5, 1.6)

3. LoadDataWithBase displays text and image content (multiple simulator versions supported)

Public class AboutView extends Activity implements OnTouchListener, OnClickListener {private Button btnAbout; private WebView aboutBrowser; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. about); btnAbout = (Button) this. findViewById (R. id. about_button); aboutBrowser = (WebView) this. findViewById (R. id. about_webkit); btnAbout. setOnTouchListener (this); btnAbout. setOnClickListener (this); // WebSettings s = aboutBrowser. getSettings (); // s. setUseWideViewPort (true); // s. setJavaScriptEnabled (true); // s. setBlockNetworkImage (true); loadHTML () ;}@ Overridepublic boolean onTouch (View v, MotionEvent event) {return false ;}@ Overridepublic void onClick (View v) {if (v = btnAbout) {// here, the Activity is switched. // Note: every Activity must be in AndroidManifest. register Intent I = new Intent (); I. setClass (AboutView. this, CiHaiView. class); this. startActivity (I); AboutView. this. finish () ;}} public void loadHTML () {String vStr = getText (R. string. vStr ). toString (); String vNum = getText (R. string. vNum ). toString (); final String htmlText = "