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:
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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" )
@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() {
/* 回调方法,当页面加载时执行*/
@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);
}
}
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