android – Web视图不加载重定向网址

public class Main extends Activity {
    private WebView webview;
    private static final String TAG = "Main";
    private ProgressDialog progressBar;  

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceStatE) {
        super.onCreate(savedInstanceStatE);

        requestWindowFeature(Window.FEATURE_NO_titlE);

        setContentView(R.layout.main);

        this.webview = (WebView)findViewById(R.id.webview);

        WebSetTings setTings = webview.getSetTings();
        setTings.setJavaScriptEnabled(true);
        webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY);

        final AlertDialog alertDialog = new AlertDialog.builder(this).create();

        progressBar = ProgressDialog.show(Main.this,"WebView Example","Loading...");

        webview.setWebViewClient(new WebViewClient() {
            public Boolean shouldOverrideUrlLoading(WebView view,String url) {
                Log.i(tag,"Processing webview url click...");
                view.loadUrl(url);
                return true;
            }

            public void onPageFinished(WebView view,"Finished loading URL: " +url);
                if (progressBar.isShowing()) {
                    progressBar.dismiss();
                }
            }

            public void onReceivedError(WebView view,int errorCode,String description,String failingUrl) {
                Log.e(tag,"Error: " + description);
                Toast.makeText(activity,"Oh no! " + description,Toast.LENGTH_SHORT).show();
                alertDialog.settitle("Error");
                alertDialog.setmessage(description);
                alertDialog.setButton("OK",new DialogInterface.onClickListener() {
                    public void onClick(DialogInterface dialog,int which) {
                        return;
                    }
                });
                alertDialog.show();
            }
        });
        webview.loadUrl("http://www.google.com");
    }
}

你的main.xml布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://scheR_174_11845@as.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <WebView android:id="@String/webview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1" />
</LinearLayout>