(Android™) Emoji Tweet

Demonstrates posting a status update that includes an emoji character.

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);

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

    // ----------------------------------------------------------------------
    // This initial setup, which involves setting the OAuth1 properties and connecting
    // to api.twitter.com, is only required once at the beginning.  Once connected, the same
    // object instance may be re-used, and if necessary, it will automatically reconnect
    // as needed.

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

    CkRest rest = new CkRest();
    CkOAuth1 oauth1 = new CkOAuth1();

    oauth1.put_ConsumerKey("TWITTER_CONSUMER_KEY");
    oauth1.put_ConsumerSecret("TWITTER_CONSUMER_SECRET");
    oauth1.put_Token(json.stringOf("oauth_token"));
    oauth1.put_TokenSecret(json.stringOf("oauth_token_secret"));
    oauth1.put_SignatureMethod("HMAC-SHA1");
    oauth1.GenNonce(16);

    rest.SetAuthOAuth1(oauth1,false);

    boolean bAutoReconnect = true;
    success = rest.Connect("api.twitter.com",443,true,bAutoReconnect);
    if (success != true) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    // This ends the initial setup...
    // ----------------------------------------------------------------------

    // For this example, I've pre-created a text file containing two emoji
    // characters (the "ghost" emoji, and a "face savouring delicious food" emoji).  
    // This text file was saved using the utf-8 encoding.

    // The utf-8 bytes for the ghost emoji are 0x9f 0x91 0xbb.  (Note: This is the utf-8
    // representation that does not use surrogate pairs.)
    // 
    // The utf-8 bytes for the "face savouring delicious food" emoji are \xF0\x9F\x98\x8B.

    CkStringBuilder sbText = new CkStringBuilder();
    sbText.LoadFile("qa_data/txt/ghost_emoji.txt","utf-8");
    sbText.Prepend("Test tweet using two emoji chars: ");

    // Send a tweet...
    rest.ClearAllQueryParams();
    rest.AddQueryParam("status",sbText.getAsString());
    String resp = rest.fullRequestFormUrlEncoded("POST","/1.1/statuses/update.json");
    if (rest.get_LastMethodSuccess() != true) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

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

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

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

  }

  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."
  }
}