WebViewActivity.java

public class WebViewActivity extends Activity {

private WebView webView;

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.webview);

    webView = (WebView) findViewById(R.id.webView1);
    webView.getSettings().setJavaScriptEnabled(true);
    webView.setWebViewClient(new WebViewClient());
    webView.loadUrl("http://maps.google.com/maps?" +"saddr=43.0054446,-87.9678884" + "&daddr=42.9257104,-88.0508355");




}

}  

我想在WebView中打开以下代码：

 final Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(
               "http://maps.google.com/maps?" +
               "saddr=43.0054446,-87.9678884" +
               "&daddr=42.9257104,-88.0508355"));

            intent.setClassName(
             "com.google.android.apps.maps","com.google.android.maps.MapsActivity");
      startActivity(intent);

我怎样才能做到这一点 ？？？