Android Open Source - spotthestation Twitter Activity

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Back to project page spotthestation.

License

The source code is released under:

Apache License

Java Source Code

/*
 * Written by Eleanor Da Fonseca, Weixiong Cen, Harrison Black & Boris Feron
 *//*from w ww.  java2  s  .c  om*/

package nasa.android.spotthestation;

import java.io.File;
import java.util.concurrent.ExecutionException;

import twitter4j.StatusUpdate;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;

import nasa.android.spotthestation.R;
import nasa.android.spotthestation.TwitterWebviewActivity;

import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class TwitterActivity extends Activity {
  private final static String TWITPIC_API_KEY = "INSERT_CUSTOM_TWITPIC_API_KEY";
  private Twitter twitter;
  private RequestToken requestToken;
  private String OAUTH_CONSUMER_KEY = "INSERT_CUSTOM_OAUTH_CONSUMER_KEY";
  private String OAUTH_CONSUMER_SECRET = "INSERT_CUSTOM_OATH_CONSUMER_SECRET";
  private Context context;
  private SharedPreferences settings;
  // Preference Constants
  static String PREFERENCE_NAME = "twitter_oauth";
  static final String PREF_KEY_OAUTH_TOKEN = "oauth_token";
  static final String PREF_KEY_OAUTH_SECRET = "oauth_token_secret";
  static final String PREF_KEY_TWITTER_LOGIN = "isTwitterLogedIn";
  static final String TWITTER_CALLBACK_URL = "oauth://t4jsample";
  // Twitter oauth urls
  static final String URL_TWITTER_AUTH = "auth_url";
  static final String URL_TWITTER_OAUTH_VERIFIER = "oauth_verifier";
  static final String URL_TWITTER_OAUTH_TOKEN = "oauth_token";
  static final int TWITTER_AUTH = 102;
  private String fileUriPath;
  private Button updateStatusButton;
  private EditText statusText;

  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_twitter);
    settings = getApplicationContext().getSharedPreferences("MyPref", 0);
    fileUriPath = settings.getString("fileUri", "file path not found");
    twitter = new TwitterFactory().getInstance();
    requestToken = null;
    twitter.setOAuthConsumer(OAUTH_CONSUMER_KEY, OAUTH_CONSUMER_SECRET);
    context = getApplicationContext();
    AsyncTask<String, String, String> requestTokenTask = new RequestTokenTask();
    requestTokenTask.execute("");
    try {
      requestTokenTask.get();
    }
    catch (InterruptedException e) {
      e.printStackTrace();
    }
    catch (ExecutionException e) {
      e.printStackTrace();
    }
    Intent i = new Intent(context, TwitterWebviewActivity.class);
    i.putExtra("URL", requestToken.getAuthenticationURL());
    startActivityForResult(i, TWITTER_AUTH);
    this.statusText = (EditText) this.findViewById(R.id.txtUpdateStatus);
    this.updateStatusButton = (Button) this.findViewById(R.id.btnUpdateStatus);
    this.updateStatusButton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        //Toast.makeText(TwitterActivity.this, "Tweeting .....", Toast.LENGTH_LONG).show();
        String status = statusText.getText().toString();
        UpdateStatusTask updateTask = new UpdateStatusTask(status);
        updateTask.execute("");
        try {
          updateTask.get();
        }
        catch (InterruptedException e) {
          e.printStackTrace();
        }
        catch (ExecutionException e) {
          e.printStackTrace();
        }
        finish();
      }
    });
  }

  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (resultCode == Activity.RESULT_OK) {
      OAuthAccessTokenTask oAuthTask = new OAuthAccessTokenTask();
      oAuthTask.setOauthVerifier((String) data.getExtras().get("oauth_verifier"));
      oAuthTask.execute("");
      try {
        oAuthTask.get();
      }
      catch (InterruptedException e) {
        e.printStackTrace();
      }
      catch (ExecutionException e) {
        e.printStackTrace();
      }
    }
  }

  class UpdateStatusTask extends AsyncTask<String, String, String> {
    public String statusString;

    public UpdateStatusTask(String statusString) {
      this.statusString = statusString;
    }

    @Override
    protected String doInBackground(String... uri) {
      publishProgress("");
      String accessToken = settings.getString("twitter_access_token", null);
      String accessTokenSecret = settings.getString("twitter_access_token_secret", null);
      Configuration conf = new ConfigurationBuilder().setMediaProviderAPIKey(TWITPIC_API_KEY).setOAuthConsumerKey(OAUTH_CONSUMER_KEY).setOAuthConsumerSecret(OAUTH_CONSUMER_SECRET).setOAuthAccessToken(accessToken).setOAuthAccessTokenSecret(accessTokenSecret).build();
      Twitter twitter = new TwitterFactory(conf).getInstance();
      try {
        File file = new File(fileUriPath);
        if (file != null) {
          StatusUpdate status = new StatusUpdate(statusString);
          status.setMedia(file);
          twitter.updateStatus(status);
        }
      }
      catch (TwitterException e) {
        Log.d("TAG", "Twitter Exception: Photo not uploaded" + e.getErrorMessage());
      }
      return "Done";
    }

    protected void onProgressUpdate(String... progress) {
      Toast.makeText(context, "Tweet sent", Toast.LENGTH_SHORT).show();
    }
  }

  private class RequestTokenTask extends AsyncTask<String, String, String> {
    @Override
    protected String doInBackground(String... uri) {
      try {
        requestToken = twitter.getOAuthRequestToken(TWITTER_CALLBACK_URL);
      }
      catch (TwitterException e) {
        e.printStackTrace();
      }
      return "Done";
    }
  }

  class OAuthAccessTokenTask extends AsyncTask<String, String, String> {
    private String oauthVerifier;

    protected void setOauthVerifier(String oauthVerifier) {
      this.oauthVerifier = oauthVerifier;
    }

    @Override
    protected String doInBackground(String... uri) {
      try {
        // Pair up our request with the response
        AccessToken at = null;
        at = twitter.getOAuthAccessToken(requestToken, oauthVerifier);
        settings.edit().putString("twitter_access_token", at.getToken()).putString("twitter_access_token_secret", at.getTokenSecret()).commit();
      }
      catch (TwitterException e) {
        e.printStackTrace();
      }
      return "Done";
    }
  }
}

Java Source Code List

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