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首页 / 移动开发 / Android / Android实现授权访问网页的方法

本文实例讲述了Android授权访问网页的实现方法,即使用Webview显示OAuth Version 2.a ImplicitGrant方式授权的页,但是对于移动终端不建议使用Authorize code grant方式授权
具体功能代码如下所示:
import android.annotation.SuppressLint;import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.net.http.SslError;import android.os.Bundle;import android.util.Log;import android.webkit.SslErrorHandler;import android.webkit.WebSettings;import android.webkit.WebView;import android.webkit.WebViewClient;import com.tencent.weibo.oauthv2.OAuthV2;import com.tencent.weibo.oauthv2.OAuthV2Client;/** * 使用Webview显示OAuth Version 2.a ImplicitGrant方式授权的页 * (移动终端不建议使用Authorize code grant方式授权 * 本类使用方法 * 调用本类的地方请添加如下代码 * //请将OAuthV2Activity改为类的类名 * Intent intent = new Intent(OAuthV2Activity.this, OAuthV2AuthorizeWebView.class); * intent.putExtra("oauth", oAuth); //oAuth为OAuthV2类的实例,存放授权相关信?? * startActivityForResult(intent, myRrequestCode); //请设置合适的requsetCode * 重写接收回调信息的方 * if (requestCode==myRrequestCode) { //对应之前设置的的myRequsetCode * if (resultCode==OAuthV2AuthorizeWebView.RESULT_CODE) { * //取得返回的OAuthV2类实例oAuth * oAuth=(OAuthV2) data.getExtras().getSerializable("oauth"); * } * } * @see android.app.Activity#onActivityResult(int requestCode, int resultCode, Intent data) */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") @Overridepublic 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() {/* 回调方法,当页面加载时执行*/@Overridepublic 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该方法,目前https://open.t.qq.com中存在http资源会引起sslerror,待网站修正后可去掉该方*/ public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {if ((null != view.getUrl()) && (view.getUrl().startsWith("https://open.t.qq.com"))) {handler.proceed();// 接受证书} else {handler.cancel(); // 默认的处理方式,WebView变成空白}// handleMessage(Message msg); 其他处理}};mWebView.setWebViewClient(client);}}