AndroidとTwitter4Jで公式画像アップロードAPIを使う

package info.loadlimits.android.updatewithmedia;

import java.io.File;

import twitter4j.TwitterException;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import twitter4j.media.ImageUpload;
import twitter4j.media.ImageUploadFactory;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;

public class UpdateWithMediaActivity extends Activity implements
		OnClickListener {
	private final static int REQUEST_PICK = 1;
	private final static String CONSUMER_KEY = "(書き換えてください)";
	private final static String CONSUMER_SECRET = "(書き換えてください)";
	private final static String ACCESS_TOKEN = "(書き換えてください)";
	private final static String ACCESS_TOKEN_SECRET = "(書き換えてください)";

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

		Button buttonPost = (Button) findViewById(R.id.buttonPost);
		buttonPost.setOnClickListener(this);
	}

	@Override
	public void onClick(View v) {
		Intent intent = new Intent(Intent.ACTION_PICK);
		intent.setType("image/*");
		startActivityForResult(intent, REQUEST_PICK);
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (requestCode == REQUEST_PICK && resultCode == RESULT_OK) {
			Uri uri = data.getData();
			ContentResolver cr = getContentResolver();
			String[] columns = { MediaStore.Images.Media.DATA };
			Cursor c = cr.query(uri, columns, null, null, null);

			c.moveToFirst();
			File path = new File(c.getString(0));
			if (!path.exists())
				return;

			ConfigurationBuilder builder = new ConfigurationBuilder();
			builder.setOAuthConsumerKey(CONSUMER_KEY);
			builder.setOAuthConsumerSecret(CONSUMER_SECRET);
			builder.setOAuthAccessToken(ACCESS_TOKEN);
			builder.setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET);
			// ここでMediaProviderをTWITTERにする
			builder.setMediaProvider("TWITTER");

			Configuration conf = builder.build();

			ImageUpload imageUpload = new ImageUploadFactory(conf)
					.getInstance();

			EditText textTweet = (EditText) findViewById(R.id.textTweet);
			String tweet = textTweet.getText().toString();

			try {
				imageUpload.upload(path, tweet);
			} catch (TwitterException e) {
				e.printStackTrace();
			}
		}
	}
}

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

    <EditText
        android:id="@+id/textTweet"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/buttonPost"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/btn_upload" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="info.loadlimits.android.updatewithmedia"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="9" />

    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name=".UpdateWithMediaActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>