我要整合四方的机器人。所以，我想两个例子。

I want to integrate foursquare in android. So i tried two examples.

第一个例子：

public class ActivityWebView extends Activity 
{
private static final String TAG = "ActivityWebView";

/**
 * Get these values after registering your oauth app at: https://foursquare.com/oauth/
 */

public static final String CLIENT_ID = "";
public static final String OAUTH_CALLBACK_SCHEME = "x-oauthflow-foursquare";
public static final String OAUTH_CALLBACK_HOST = "callback";
public static final String CALLBACK_URL = OAUTH_CALLBACK_SCHEME + "://" + OAUTH_CALLBACK_HOST;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_webview);

    String url =
        "https://foursquare.com/oauth2/authenticate" + 
            "?client_id=" + CLIENT_ID + 
            "&response_type=token" + 
            "&redirect_uri=" + CALLBACK_URL;

    // If authentication works, we'll get redirected to a url with a pattern like:  
    //
    //    http://YOUR_REGISTERED_REDIRECT_URI/#access_token=ACCESS_TOKEN
    //
    // We can override onPageStarted() in the web client and grab the token out.
    WebView webview = (WebView)findViewById(R.id.webview);
    webview.getSettings().setJavaScriptEnabled(true);
    webview.setWebViewClient(new WebViewClient() {
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            String fragment = "#access_token=";
            int start = url.indexOf(fragment);
            if (start > -1) {
                // You can use the accessToken for api calls now.
                String accessToken = url.substring(start + fragment.length(), url.length());

                Log.v(TAG, "OAuth complete, token: [" + accessToken + "].");

                Toast.makeText(ActivityWebView.this, "Token: " + accessToken, Toast.LENGTH_SHORT).show();
            }
        }
    });
    webview.loadUrl(url);
}

}

第二个例子：

的http://blog.doityourselfandroid.com/2011/09/05/integrate-foursquare-android-application/

和我添加了额外的code清单文件

And i added additional code in Manifest file

<activity android:name=".ActivityWebView" android:launchMode="singleTask"  android:noHistory="true"> 
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="x-oauthflow-foursquare" android:host="callback" />
        </intent-filter>
    </activity>

运行后，这两个应用程序验证是成功的，但它显示的Web视图与此消息

after run the two applications Authentication was success but it shows web view with this message

you dont have permission to open this page x-oauthflow-foursquare://callback#access_token=DRWDP004zzAIZ1PPJEANEBFCM3NZJ1T414U2Z

所以，请告诉我的是它不需要添加任何额外的权限。请解决我的问题。

So please tell me is it need add any extra permissions. Please solve my problem.

推荐答案

使用Foursquare的API检查该code的认证部分和回调部分：

Check this code for Authentication Part and Callback Part using Foursquare API:

public class ActivityMain extends Activity{
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Button btn = (Button)findViewById(R.id.button);
    btn.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            Intent intent = new Intent(ActivityMain.this, ActivityWebView.class);
            startActivity(intent);
        }
    });
}
}

ActivityWebView.Java：按钮点击后：

ActivityWebView.Java : After Button clicked :

public class ActivityWebView extends Activity{
    private static final String TAG = "ActivityWebView";
    public static final String CLIENT_ID = "01QWBUR2UUFSMMLZXOM5YY0UWCM4BC0F2IOZDJ0S5XGOINQM";
    public static final String OAUTH_CALLBACK_SCHEME = "x-oauthflow-foursquare";
    public static final String OAUTH_CALLBACK_HOST = "callback";
    public static final String CALLBACK_URL = OAUTH_CALLBACK_SCHEME + "://" + OAUTH_CALLBACK_HOST;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_webview);       

    String url =
        "https://foursquare.com/oauth2/authenticate" + 
            "?client_id=" + CLIENT_ID + 
            "&response_type=token" + 
            "&redirect_uri=" + CALLBACK_URL;

            WebView webview = (WebView)findViewById(R.id.webview);
    webview.getSettings().setJavaScriptEnabled(true);
    webview.setWebViewClient(new WebViewClient() {
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            String fragment = "#access_token=";
            int start = url.indexOf(fragment);
            if (start > -1) {
                // You can use the accessToken for api calls now.
                String accessToken = url.substring(start + fragment.length(), url.length());

                Log.v(TAG, "OAuth complete, token: [" + accessToken + "].");

                Toast.makeText(ActivityWebView.this, "Token: " + accessToken, Toast.LENGTH_SHORT).show();
                editor.putString("Access_Token", accessToken);
                editor.commit();
                startActivity(new Intent(ActivityWebView.this,Nearest_Places_View.class));  // After Successfull Login the Web view will Redirected to Nearest_Places_View Activity
            }
        }
    });
    webview.loadUrl(url);
}
}

activity_webview.xml：

activity_webview.xml :

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

回调后活动：

Activity after Callback :

public class Nearest_Places_View extends Activity {

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.anylayout);

        // Do your All stuff for Foursquare for example getting User Checkins,Nearest Place
    }
 }

您manifest文件应该是这样的：

You manifest file should look like this :

<?xml version="1.0" encoding="utf-8"?>
 <manifest 
  xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.foursquare.android.oauth"
  android:versionCode="1"
  android:versionName="1.0">
  <uses-sdk android:minSdkVersion="4" />
   <application     android:icon="@drawable/icon"    android:label="@string/app_name">
        <activity   android:name=".ActivityMain"        android:label="@string/app_name">
           <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
       </activity>

  <activity
  android:name=".Nearest_Places_View"
  />

<activity android:name=".ActivityWebView" android:launchMode="singleTask">>
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="x-oauthflow-foursquare" android:host="callback" />
    </intent-filter>
</activity>

回拨应该为所有三个1.活动2.manifest 3.Settings页相同。那么只有它会工作。

Call back should be same for all the three 1. Activity 2.manifest 3.Settings Page. then only it will work.