(Android™) Twitter PIN-Based Authorization (Step 1)

Demonstrates the 1st step in Twitter PIN-based authorization using OAuth. The purpose of this step is to obtain a temporary request token that will be traded for an access token + secret in the final step. Once the access token + secret is obtained, the application can access the Twitter account in whatever ways it was authorized.

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http = new CkHttp();

    http.put_OAuth1(true);
    http.put_OAuthConsumerKey("my-consumer-key");
    http.put_OAuthConsumerSecret("my-consumer-secret");

    CkHttpRequest req = new CkHttpRequest();
    req.put_HttpVerb("POST");
    req.put_ContentType("application/x-www-form-urlencoded");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpReq("https://api.twitter.com/oauth/request_token",req,resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    if (resp.get_StatusCode() == 200) {

        String oauthToken = resp.urlEncParamValue(resp.bodyStr(),"oauth_token");
        Log.i(TAG, "OAuth temporary request token = " + oauthToken);

        String oauthTokenSecret = resp.urlEncParamValue(resp.bodyStr(),"oauth_token_secret");
        Log.i(TAG, "OAuth temporary token secret = " + oauthTokenSecret);

        String oauthCbConfirmed = resp.urlEncParamValue(resp.bodyStr(),"oauth_callback_confirmed");
        Log.i(TAG, "OAuth callback confirmed  = " + oauthCbConfirmed);

        // At this point, the end-user needs to browse to the following
        // Twitter URL to log in to his/her Twitter account and get a PIN.
        // 
        // https://api.twitter.com/oauth/authenticate?oauth_token=OAUTH_TOKEN
        // 
        // (where OAUTH_TOKEN is replaced with the contents
        // of the OAuth temporary request token.)

        // Your application may have an embedded browser such
        // that it automatically navigates to the above URL, or it may
        // be necessary for the user to browse to this URL independently.

        // Once the PIN is obtained, your application should provide a means
        // for the end-user to enter it (by typing it into an input text box, for example), 
        // and then Step 2 (the final step) can begin.

        }
    else {
        Log.i(TAG, http.lastErrorText());
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}