com.springsource.greenhouse.twitter.TweetsListActivity.java Source code

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Here is the source code for com.springsource.greenhouse.twitter.TweetsListActivity.java

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/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.springsource.greenhouse.twitter;

import java.util.List;

import org.springframework.social.greenhouse.api.Event;
import org.springframework.social.greenhouse.api.EventSession;
import org.springframework.social.greenhouse.api.Tweet;

import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;

import com.springsource.greenhouse.AbstractGreenhouseListActivity;
import com.springsource.greenhouse.R;

/**
 * @author Roy Clarkson
 */
public abstract class TweetsListActivity extends AbstractGreenhouseListActivity {

    protected static final String TAG = TweetsListActivity.class.getSimpleName();

    private List<Tweet> tweets;

    //***************************************
    // Activity methods
    //***************************************
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public void onStart() {
        super.onStart();
        downloadTweets();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.tweets_menu, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle item selection
        switch (item.getItemId()) {
        case R.id.tweets_menu_refresh:
            downloadTweets();
            return true;
        default:
            return super.onOptionsItemSelected(item);
        }
    }

    //***************************************
    // ListActivity methods
    //***************************************
    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        Tweet tweet = getTweet(position);
        getApplicationContext().setSelectedTweet(tweet);
        startActivity(new Intent(v.getContext(), TweetDetailsActivity.class));
    }

    //***************************************
    // Abstract methods
    //***************************************
    protected abstract void downloadTweets();

    //***************************************
    // Protected methods
    //***************************************
    protected Event getSelectedEvent() {
        return getApplicationContext().getSelectedEvent();
    }

    protected EventSession getSelectedSession() {
        return getApplicationContext().getSelectedSession();
    }

    protected void setTweets(List<Tweet> tweets) {
        this.tweets = tweets;
        getApplicationContext().setSelectedTweet(null);
        setListAdapter(new TweetsListAdapter(this, tweets));
    }

    protected List<Tweet> getTweets() {
        return tweets;
    }

    protected Tweet getTweet(int position) {
        return tweets.get(position);
    }

}