(Android™) Upload Media to Twitter

Demonstrates uploading image or video files to Twitter. After uploading, the media_id can be used to attach the uploaded media to a tweet.

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);

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

    // Assume we've previously obtained an access token and saved it to a JSON file..
    CkJsonObject jsonToken = new CkJsonObject();
    boolean success = jsonToken.LoadFile("qa_data/tokens/twitter.json");

    CkHttp http = new CkHttp();

    // Provide the OAuth 1.0a credentials:
    http.put_OAuth1(true);
    http.put_OAuthConsumerKey("TWITTER_CONSUMER_KEY");
    http.put_OAuthConsumerSecret("TWITTER_CONSUMER_SECRET");
    http.put_OAuthToken(jsonToken.stringOf("oauth_token"));
    http.put_OAuthTokenSecret(jsonToken.stringOf("oauth_token_secret"));

    CkHttpRequest req = new CkHttpRequest();
    req.put_HttpVerb("POST");
    req.put_ContentType("multipart/form-data");
    req.put_Path("/1.1/media/upload.json");

    req.AddHeader("Expect","100-continue");

    // Add a JPEG image file to the upload.
    CkFileAccess fac = new CkFileAccess();
    CkByteData jpgBytes = new CkByteData();
    success = fac.ReadEntireFile("qa_data/jpg/starfish.jpg",jpgBytes);
    req.AddBytesForUpload("media","starfish.jpg",jpgBytes);

    CkHttpResponse resp = http.SynchronousRequest("upload.twitter.com",443,true,req);
    if (http.get_LastMethodSuccess() != true) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    CkJsonObject jsonResponse = new CkJsonObject();
    jsonResponse.put_EmitCompact(false);
    jsonResponse.Load(resp.bodyStr());

    if (resp.get_StatusCode() != 200) {
        Log.i(TAG, jsonResponse.emit());
        return;
        }

    // Show the successful response:
    Log.i(TAG, jsonResponse.emit());
    Log.i(TAG, "Success.");

    // A successful JSON response looks like this:

    // 	{
    // 	  "media_id": 793137045996646400,
    // 	  "media_id_string": "793137045996646400",
    // 	  "size": 6229,
    // 	  "expires_after_secs": 86400,
    // 	  "image": {
    // 	    "image_type": "image\/jpeg",
    // 	    "w": 120,
    // 	    "h": 120
    // 	  }
    // 	}
    // 

    // Get the information from the JSON:
    Log.i(TAG, "media_id_string = " + jsonResponse.stringOf("media_id_string"));
    Log.i(TAG, "size = " + String.valueOf(jsonResponse.IntOf("size")));
    Log.i(TAG, "image_type = " + jsonResponse.stringOf("image.image_type"));
    Log.i(TAG, "height/width = " + String.valueOf(jsonResponse.IntOf("image.w")) + "," + String.valueOf(jsonResponse.IntOf("image.h")));

  }

  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."
  }
}