本課主要講解了在Android 中如何完成用戶OAuth認證。
微博操作的流程圖：
點擊了開始后：
首先是獲取新浪微博的OAuth授權(WebViewActivity.java)：
package haiyang.project.iweibo.ui;
import haiyang.project.iweibo.R;
import haiyang.project.iweibo.util.AuthUtil;
import haiyang.project.iweibo.util.JavascriptInterface;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;
/*
* 新浪微博OAuth授權頁面
*/
public class WebViewActivity extends Activity{
private WebView webView;
private ProgressDialog progressDialog;
private static final int CLOSE_DLG=1;
private Handler handler;
String url=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
this.setContentView(R.layout.webview);
url=AuthUtil.getAuthorizationURL();
if(url==null){
Toast.makeText(this, R.string.auth_url_empty, 3000).show();
return;
}
init();
load(url,webView);
handler=new Handler(){
public void handleMessage(android.os.Message msg) {
if(msg.what==CLOSE_DLG){
progressDialog.dismiss();
}
};
};
}
public void init(){
if(progressDialog==null){
progressDialog=new ProgressDialog(this);
}
progressDialog.setMessage("正在加載");
progressDialog.show();
webView=(WebView) this.findViewById(R.id.wv_oauth);
webView.getSettings().setJavaScriptEnabled(true);
webView.addJavascriptInterface(new JavascriptInterface(), "Methods");
webView.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
load(url,webView);
return true;
}
@Override
public void onPageFinished(WebView view, String url) {
if(url.equals("http://api.t.sina.com.cn/oauth/authorize")){
String load="javascript:window.Methods.getPin('<head>'+document.getElementsByTagName('html')[0].innerHTML+'</head>')";
view.loadUrl(load);
Intent intent=new Intent(WebViewActivity.this,AccessTokenActivity.class);
startActivity(intent);
}
super.onPageFinished(view, url);
}
});
webView.setWebChromeClient(new WebChromeClient(){
public void onProgressChanged(WebView view, int newProgress) {
if(newProgress==100){
handler.sendEmptyMessage(CLOSE_DLG);
}
super.onProgressChanged(view, newProgress);
}
});
}
public void load(final String url,final WebView view){
if(url==null||"".equals(url)){
return;
}
new Thread(){
public void run() {
view.loadUrl(url);
}
}.start();
}
}
獲取授權URL(AuthUtil.java)
package haiyang.project.iweibo.util;
import weibo4android.Weibo;
import weibo4android.WeiboException;
import weibo4android.http.AccessToken;
import weibo4android.http.RequestToken;
public class AuthUtil {
private static Weibo weibo;
private static RequestToken requestToken;
static{
System.setProperty("weibo4j.oauth.consumerKey", Weibo.CONSUMER_KEY);
System.setProperty("weibo4j.oauth.consumerSecret", Weibo.CONSUMER_SECRET);
weibo=new Weibo();
}
/**
* 獲取授權URL
* @return
*/
public static String getAuthorizationURL(){
try {
requestToken=weibo.getOAuthRequestToken();
return requestToken.getAuthorizationURL();
} catch (WeiboException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
public static void getAccessToken(String pin){
try {
AccessToken accessToken=requestToken.getAccessToken(pin);
System.out.println("Access token: "+ accessToken.getToken());
System.out.println("Access token secret: "+ accessToken.getTokenSecret());
System.out.println("userID: "+accessToken.getUserId());
} catch (WeiboException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
獲取PIN值
package haiyang.project.iweibo.util;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* 獲取PIN值
* @author Administrator
*
*/
public class JavascriptInterface {
//授權碼
public static String PIN=null;
public void getPin(String html){
String pin=null;
String reg="[0-9]{6}";
Pattern pattern=Pattern.compile(reg);
Matcher matcher=pattern.matcher(html);
if(matcher.find()){//find each match in turn
pin=matcher.group(0);//Access a submatch group
}
PIN=pin;
}
}
獲取AccessToken
package haiyang.project.iweibo.ui;
import haiyang.project.iweibo.util.AuthUtil;
import haiyang.project.iweibo.util.JavascriptInterface;
import android.app.Activity;
import android.os.Bundle;
public class AccessTokenActivity extends Activity{
protected void onCreate(Bundle savedInstanceState) {
String pin=JavascriptInterface.PIN;
AuthUtil.getAccessToken(pin);
super.onCreate(savedInstanceState);
}
}
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