Day 22 - Twitter4j

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dependencies {
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    compile 'org.twitter4j:twitter4j-core:4.0.2'
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}

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ConfigurationBuilder cb = new ConfigurationBuilder();
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cb.setDebugEnabled(true)
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  .setOAuthConsumerKey("")
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  .setOAuthConsumerSecret("******************************************")
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  .setOAuthAccessToken("**************************************************")
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  .setOAuthAccessTokenSecret("******************************************");
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TwitterFactory tf = new TwitterFactory(cb.build());
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Twitter twitter = tf.getInstance();

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private static final String API_KEY = "YOUR_API_KEY";
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private static final String API_SECRET = "YOUR_SECRET_KEY";
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private static final String ACCESS_TOKEN = "YOUR_ACCESS_TOKEN";
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private static final String ACCESS_TOKEN_SECRET = "YOUR_ACCESS_TOKEN_SECRET";
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ConfigurationBuilder cb = new ConfigurationBuilder();
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cb.setDebugEnabled(true)
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        .setOAuthConsumerKey(API_KEY)
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        .setOAuthConsumerSecret(API_SECRET)
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        .setOAuthAccessToken(ACCESS_TOKEN)
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        .setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET);
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TwitterFactory tf = new TwitterFactory(cb.build());
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Twitter twitter = tf.getInstance();

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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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              android:orientation="vertical"
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              android:padding="16dp"
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              android:layout_width="match_parent"
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              android:layout_height="match_parent">
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    <RelativeLayout
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        android:layout_width="match_parent"
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        android:layout_height="wrap_content"
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        android:layout_marginBottom="16dp">
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        <EditText
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            android:layout_width="match_parent"
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            android:layout_height="wrap_content"
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            android:id="@+id/text_tweet"
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            android:layout_alignParentTop="true"
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            android:layout_alignParentLeft="true"
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            android:layout_toLeftOf="@+id/button_tweet" />
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        <Button
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            android:layout_width="wrap_content"
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            android:layout_height="wrap_content"
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            android:text="@string/tweet"
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            android:id="@+id/button_tweet"
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            android:layout_alignParentRight="true"/>
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        </RelativeLayout>
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    <ListView
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        android:layout_width="match_parent"
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        android:layout_height="match_parent"
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        android:id="@+id/list_view">
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    </ListView>
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</LinearLayout>

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<resources>
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    <string name="tweet">Tweet</string>
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</resources>

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package com.devahoy.learn30androidlibraries.day22;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.support.v7.app.ActionBarActivity;
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import android.util.Log;
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import android.view.View;
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import android.widget.Toast;
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import com.devahoy.learn30androidlibraries.R;
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import twitter4j.Twitter;
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import twitter4j.TwitterException;
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import twitter4j.TwitterFactory;
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import twitter4j.conf.ConfigurationBuilder;
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public class Twitter4jActivity extends ActionBarActivity {
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    private static final String TAG = Twitter4jActivity.class.getSimpleName();
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    private static final String API_KEY = "YOUR_API_KEY";
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    private static final String API_SECRET = "YOUR_SECRET_KEY";
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    private static final String ACCESS_TOKEN = "YOUR_ACCESS_TOKEN";
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    private static final String ACCESS_TOKEN_SECRET = "YOUR_ACCESS_TOKEN_SECRET";
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        setContentView(R.layout.day22_activity_twitter4j);
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        ConfigurationBuilder cb = new ConfigurationBuilder();
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        cb.setDebugEnabled(true)
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                .setOAuthConsumerKey(API_KEY)
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                .setOAuthConsumerSecret(API_SECRET)
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                .setOAuthAccessToken(ACCESS_TOKEN)
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                .setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET);
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        TwitterFactory factory = new TwitterFactory(cb.build());
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        Twitter twitter = factory.getInstance();
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        try {
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            twitter.updateStatus("Learn to create Simple Tweet with Twitter4J via @Devahoy");
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        } catch (TwitterException e) {
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            Log.d(TAG, e.toString());
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        }
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    }
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}

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401:Authentication credentials (https://dev.twitter.com/pages/auth) were missing or incorrect.
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Ensure that you have set valid consumer key/secret, access token/secret, and the system clock is in sync.
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    {"request":"\/1.1\/statuses\/update.json","error":"Read-only application cannot POST."}
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    Relevant discussions can be found on the Internet at:
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    http://www.google.co.jp/search?q=2fc5b7cb or
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    http://www.google.co.jp/search?q=0e1dbbf5
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    TwitterException{exceptionCode=[2fc5b7cb-0e1dbbf5], statusCode=401,
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    message=null, code=-1, retryAfter=-1, rateLimitStatus=null, version=4.0.2}

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package com.devahoy.learn30androidlibraries.day22;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.support.v7.app.ActionBarActivity;
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import android.util.Log;
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import android.view.View;
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import android.widget.Toast;
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import com.devahoy.learn30androidlibraries.R;
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import twitter4j.Twitter;
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import twitter4j.TwitterException;
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import twitter4j.TwitterFactory;
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import twitter4j.conf.ConfigurationBuilder;
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public class Twitter4jActivity extends ActionBarActivity {
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    private static final String TAG = Twitter4jActivity.class.getSimpleName();
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    private static final String API_KEY = "YOUR_API_KEY";
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    private static final String API_SECRET = "YOUR_SECRET_KEY";
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    private static final String ACCESS_TOKEN = "YOUR_ACCESS_TOKEN";
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    private static final String ACCESS_TOKEN_SECRET = "YOUR_ACCESS_TOKEN_SECRET";
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    private TwitterFactory mFactory;
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        setContentView(R.layout.day22_activity_twitter4j);
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        ConfigurationBuilder cb = new ConfigurationBuilder();
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        cb.setDebugEnabled(true)
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                .setOAuthConsumerKey(API_KEY)
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                .setOAuthConsumerSecret(API_SECRET)
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                .setOAuthAccessToken(ACCESS_TOKEN)
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                .setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET);
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        mFactory = new TwitterFactory(cb.build());
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        new AsyncTweet().execute();
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    }
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    private class AsyncTweet extends AsyncTask<Void, Void, String> {
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        @Override
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        protected String doInBackground(Void... params) {
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            String result = null;
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            Twitter twitter = mFactory.getInstance();
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            try {
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                twitter.updateStatus("Learn to create Simple Tweet with Twitter4J via @Devahoy");
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            } catch (TwitterException e) {
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                Log.d(TAG, e.toString());
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                result = e.getErrorMessage();
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            }
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            return result;
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        }
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        @Override
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        protected void onPostExecute(String result) {
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            super.onPostExecute(result);
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            if (result == null) {
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                Toast.makeText(Twitter4jActivity.this, "Tweeted!", Toast.LENGTH_LONG).show();
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            }
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        }
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    }
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}

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public class Twitter4jActivity extends ActionBarActivity {
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    private EditText mTweet;
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    private Button mButtonTweet;
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        setContentView(R.layout.day22_activity_twitter4j);
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        mTweet = (EditText) findViewById(R.id.text_tweet);
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        mButtonTweet = (Button) findViewById(R.id.button_tweet);
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        ConfigurationBuilder cb = ...
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        ...
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        mButtonTweet.setOnClickListener(new View.OnClickListener() {
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            @Override
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            public void onClick(View v) {
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                new AsyncTweet().execute();
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            }
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        });
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    }
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}

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Twitter twitter = mFactory.getInstance();
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List<twitter4j.Status> statuses = twitter.getHomeTimeline();
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for (twitter4j.Status status : statuses) {
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    // status.getUser().getName()
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}

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public class Twitter4jActivity extends ActionBarActivity {
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    private ListView mListView;
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    private ArrayList<String> mTimelines = new ArrayList<String>();
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        setContentView(R.layout.day22_activity_twitter4j);
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        mListView = (ListView) findViewById(R.id.list_view);
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        ....
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        new AsyncTimeline().execute();
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    }
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    private class AsyncTimeline extends AsyncTask<Void, Void, String> {
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        @Override
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        protected String doInBackground(Void... params) {
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            Twitter twitter = mFactory.getInstance();
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            String result = null;
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            try {
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                List<twitter4j.Status> statuses = twitter.getHomeTimeline();
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                for (twitter4j.Status status : statuses) {
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                    mTimelines.add(status.getUser().getName() + " : " +
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                            status.getText());
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                }
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            } catch (TwitterException e) {
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                Log.d(TAG, e.toString());
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                result = e.getErrorMessage();
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            }
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            return result;
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        }
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        @Override
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        protected void onPostExecute(String s) {
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            super.onPostExecute(s);
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            if (s == null) {
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                ArrayAdapter<String> adapter =
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                        new ArrayAdapter<String>(Twitter4jActivity.this,
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                                android.R.layout.simple_list_item_1, mTimelines);
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                mListView.setAdapter(adapter);
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            }
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        }
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    }