Android Open Source - TButler Tweet Action Button Listener

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Back to project page TButler.

License

The source code is released under:

Tbutler includes software from Twitter4J to parse Twitter response from the Twitter API. You can see the license term at http://twitter4j.org/en/index.html#license Copyright (c) 2009-2010, David Parr...

Java Source Code

package com.davidparry.twitter.listeners.buttons;
/*from w ww.  j  av a 2  s  .co  m*/
import java.util.LinkedList;

import oauth.signpost.OAuthConsumer;
import oauth.signpost.OAuthProvider;
import oauth.signpost.commonshttp.CommonsHttpOAuthConsumer;
import oauth.signpost.commonshttp.CommonsHttpOAuthProvider;

import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.HTTP;
import org.json.JSONObject;

import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Toast;

import com.davidparry.twitter.ButlerActivity;
import com.davidparry.twitter.OAUTH;
import com.davidparry.twitter.R;
import com.davidparry.twitter.oath.TButlerOATH;
import com.google.android.apps.analytics.GoogleAnalyticsTracker;

public class TweetActionButtonListener implements OnClickListener,TButlerOATH {
  private static final String TAG = "TweetActionButtonListener";
  private ButlerActivity ba;
  DefaultHttpClient mClient;
  private OAuthConsumer mConsumer = null;
  private OAuthProvider mProvider = null; 
  GoogleAnalyticsTracker tracker =null;
    
  public TweetActionButtonListener(ButlerActivity ba){
    this.ba = ba;
    this.mClient = new DefaultHttpClient();
    this.mConsumer = new CommonsHttpOAuthConsumer(
        CONSUMER_KEY, 
        CONSUMER_SECRET);
 
    this.mProvider = new CommonsHttpOAuthProvider (
        OAUTH.TWITTER_REQUEST_TOKEN_URL, 
        OAUTH.TWITTER_ACCESS_TOKEN_URL,
        OAUTH.TWITTER_AUTHORIZE_URL);
  //  this.tracker = tracker;
    
  }
  public void onClick(View v) {
    /** still need to add tracker for google anaylics
    this.tracker.trackEvent(
                "Clicks",  // Category
                "Button",  // Action
                "clicked", // Label
                3);       // Value
    **/            
    ba.getDialog("Sending Tweet", "Data bits moving...");
    String tweet =  ba.getTextFieldValue(R.id.tweet_msg);
    if(tweet.length() <= 0){
      ba.closeDialog();
      new AlertDialog.Builder(v.getContext())
            .setIcon(R.drawable.icon)
            .setTitle("Validation Error").setMessage("Please type atleast one word.")
            .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int whichButton) {
                  ba.setFocusOnItem(R.id.tweet_msg);
                }
            }).create().show();
    } else {
      JSONObject jso = null;
      try {
        authorizeCheckBeforeSending();
        // It turns out this was the missing thing to making standard Activity launch mode work
        mProvider.setOAuth10a(true);
        HttpPost post = new HttpPost("http://twitter.com/statuses/update.json");
        LinkedList<BasicNameValuePair> out = new LinkedList<BasicNameValuePair>();
        out.add(new BasicNameValuePair("status", ba.getTextFieldValue(R.id.tweet_msg)));
        post.setEntity(new UrlEncodedFormEntity(out, HTTP.UTF_8));
        post.setParams(getParams());
        // sign the request to authenticate
        mConsumer.sign(post);
        String response = mClient.execute(post, new BasicResponseHandler());
        jso = new JSONObject(response);
        String msg = "";
        if(jso != null){
          msg = jso.getString("text");
        }
        
        new AlertDialog.Builder(v.getContext())
              .setIcon(R.drawable.icon)
              .setTitle("Post was successful").setMessage("Following Status Posted:"+msg)
              .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface dialog, int whichButton) {
                    ba.setFocusOnItem(R.id.tweet_msg);
                  }
              }).create().show();
        ba.clearItem(R.id.tweet_msg);
      } catch (AuthorizeException au){  
        Toast.makeText(v.getContext(), "You have not authorized Tbutler with Twitter please do this." , Toast.LENGTH_LONG);
        Intent sti = new Intent();
        sti.setClass(v.getContext(),OAUTH.class);
        v.getContext().startActivity(sti);
      } catch (Exception e) {
        new AlertDialog.Builder(v.getContext())
              .setIcon(R.drawable.icon)
              .setTitle("Error posting to Twitter").setMessage("Twitter had an error:\n"+e)
              .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface dialog, int whichButton) {
                    ba.setFocusOnItem(R.id.tweet_msg);
                  }
              }).create().show();
      } finally {
        ba.closeDialog();
        //this.tracker.dispatch();
      }
    }
  }
  
  public HttpParams getParams() {
    // Tweak further as needed for your app
    HttpParams params = new BasicHttpParams();
    // set this to false, or else you'll get an Expectation Failed: error
    HttpProtocolParams.setUseExpectContinue(params, false);
    return params;
  }  
  
  public void authorizeCheckBeforeSending()throws AuthorizeException{
    SharedPreferences prefs = ba.getContext().getSharedPreferences("TWITTER_BUTLER", Context.MODE_PRIVATE);
    String token = prefs.getString(USER_TOKEN, null);
    String secret = prefs.getString(USER_SECRET, null);
    
    if(!(token == null || secret == null)) {
      mConsumer.setTokenWithSecret(token, secret);
    } else {
      throw new AuthorizeException("You have not authorized to Twitter please authoize first");
    }
  }
  
}

Java Source Code List

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