fm.krui.kruifm.DJInfoActivity.java Source code

Introduction

Here is the source code for fm.krui.kruifm.DJInfoActivity.java

Source

/*
 * fm.krui.kruifm.DJInfoActivity - DJInfoActivity.java
 *
 * (C) 2013 - Tony Andrys
 * http://www.tonyandrys.com
 *
 * Created: 11/14/2013
 *
 * ---
 *
 * This file is part of KRUI.FM.
 *
 * KRUI.FM is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or(at your option) any later version.
 *
 * KRUI.FM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with KRUI.FM.  If not, see <http://www.gnu.org/licenses/>.
 */

package fm.krui.kruifm;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.NavUtils;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.widget.FrameLayout;

public class DJInfoActivity extends FragmentActivity implements ActionBar.TabListener, DJInfoListener {

    private static String TAG = DJInfoActivity.class.getName();

    private DJ dj;
    private Fragment currentFragment;

    // Fragment reference constants
    private final int BIO_TAB = 0;
    private final int TWITTER_TAB = 1;

    // Current fragment state
    protected int TAB_STATE = 0;

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            NavUtils.navigateUpFromSameTask(this);
        }
        return true;
    }

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dj_info_container_layout);
        showLoadingScreen(true);

        // Allow custom home button actions
        ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        actionBar.setDisplayHomeAsUpEnabled(true);

        /* For each component, create a tab for navigation */
        // Stream
        ActionBar.Tab bioTab = actionBar.newTab().setText(getResources().getString(R.string.dj_bio_tab))
                .setTabListener(this);
        // Extended Playlist
        ActionBar.Tab twitterTab = actionBar.newTab().setText(getResources().getString(R.string.dj_twitter_tab))
                .setTabListener(this);

        // Then apply the tabs to the ActionBar.
        actionBar.addTab(bioTab);
        actionBar.addTab(twitterTab);

        // Download DJ object attached to the last played song to display information.
        Log.v(TAG, "Grabbing DJ information...");
        DJInfoFetcher fetcher = new DJInfoFetcher(this, this);
        fetcher.execute();
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {

    }

    @Override
    public void onRestoreInstanceState(Bundle savedInstanceState) {
    }

    @Override
    public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {

        int position = tab.getPosition();

        // Ensure the selected tab is not the tab that is currently open. If it is, do nothing.
        // FIXME: This check might be redundant with onTabReselected...
        if (position == TAB_STATE) {
            return;
        } else {
            Fragment fragment;
            // Based on the position of the selected tab, replace the current fragment in the container with the desired fragment.
            switch (position) {
            case BIO_TAB:
                fragment = new DJInfoFragment(dj);
                fragment.setHasOptionsMenu(true); // Enable action bar menu modification from this fragment.
                fragment.setMenuVisibility(true);
                getSupportFragmentManager().beginTransaction()
                        .replace(R.id.dj_info_fragment_container, fragment, Integer.toString(BIO_TAB)).commit();
                TAB_STATE = BIO_TAB;
                currentFragment = fragment;
                break;
            case TWITTER_TAB:
                fragment = new TwitterFragment(dj);
                getSupportFragmentManager().beginTransaction()
                        .replace(R.id.dj_info_fragment_container, fragment, Integer.toString(TWITTER_TAB)).commit();
                TAB_STATE = TWITTER_TAB;
                currentFragment = fragment;
                break;
            }
        }
    }

    private void showLoadingScreen(boolean isLoading) {
        FrameLayout loadingScreen = (FrameLayout) findViewById(R.id.djinfo_container_loading_framelayout);
        if (isLoading) {
            loadingScreen.setVisibility(View.VISIBLE);
        } else {
            loadingScreen.setVisibility(View.INVISIBLE);
        }

    }

    @Override
    public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
    }

    @Override
    public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
    }

    @Override
    public void onFinish(DJ dj) {

        // Once the DJ object has been downloaded, store it for retrieval by child fragments.
        this.dj = dj;
        Log.v(TAG, "DJ object has been stored.");

        // Instantiate the bio fragment and hide the loading screen.
        Fragment fragment = new DJInfoFragment(dj);
        fragment.setHasOptionsMenu(true);
        fragment.setMenuVisibility(true);
        getSupportFragmentManager().beginTransaction()
                .replace(R.id.dj_info_fragment_container, fragment, Integer.toString(BIO_TAB)).commit();
        currentFragment = getSupportFragmentManager().findFragmentById(BIO_TAB);
        showLoadingScreen(false);
    }
}