Android實作授權通路網頁的方法

public class MyWebView extends Activity {
  public final static int RESULT_CODE = 2;
  private OAuthV2 oAuth;
  private final String TAG = "MyWebView";
 private WebView mWebView;
  @SuppressLint("NewApi")
 @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.webview_qq);
    mWebView = (WebView) findViewById(R.id.qq_mywebview);;
    mWebView.setVerticalScrollBarEnabled(false);
 mWebView.setHorizontalScrollBarEnabled(false);
 Intent intent = this.getIntent();
    oAuth = (OAuthV2) intent.getExtras().getSerializable("oauth");
    String urlStr = OAuthV2Client.generateImplicitGrantUrl(oAuth);
    WebSettings webSettings = mWebView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    webSettings.setSupportZoom(true);
    mWebView.requestFocus();
    mWebView.loadUrl(urlStr);
    System.out.println(urlStr.toString());
    Log.i(TAG, "WebView Starting....");
    WebViewClient client = new WebViewClient() {
    /* 回調方法，當頁面加載時執行*/
      @Override
      public void onPageStarted(WebView view, String url, Bitmap favicon) {
        Log.i(TAG, "WebView onPageStarted...");
        Log.i(TAG, "URL = " + url);
        if (url.indexOf("access_token=") != -1) {
          int start=url.indexOf("access_token=");
          String responseData=url.substring(start);
          OAuthV2Client.parseAccessTokenAndOpenId(responseData, oAuth);
          Intent intent = new Intent();
          intent.putExtra("oauth", oAuth);
          setResult(RESULT_CODE, intent);
          finish();
        }
        super.onPageStarted(view, url, favicon);
        Log.i(TAG, "999999999");
      }
      /* TODO Android2.2及以上版本才能使用該方法，目前https://open.t.qq.com中存在http資源會引起sslerror，待網站修正後可去掉該方*/
 public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
        if ((null != view.getUrl()) && (view.getUrl().startsWith("https://open.t.qq.com"))) {
          handler.proceed();// 接受證書
        } else {
          handler.cancel(); // 預設的處理方式，WebView變成空白
        }
        // handleMessage(Message msg); 其他處理
      }
    };
    mWebView.setWebViewClient(client);
  }
}