org.xbmc.android.remotesandbox.ui.BaseFragmentTabsActivity.java Source code

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Here is the source code for org.xbmc.android.remotesandbox.ui.BaseFragmentTabsActivity.java

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/*
 *      Copyright (C) 2005-2015 Team XBMC
 *      http://xbmc.org
 *
 *  This Program 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 2, or (at your option)
 *  any later version.
 *
 *  This Program 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 XBMC Remote; see the file license.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

package org.xbmc.android.remotesandbox.ui;

import java.util.ArrayList;

import org.xbmc.android.jsonrpc.service.AudioSyncService.RefreshObserver;
import org.xbmc.android.remotesandbox.R;
import org.xbmc.android.util.google.TabsAdapter;

import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
import android.widget.TabHost;
import android.widget.TabWidget;
import android.widget.TextView;

/**
 * A {@link BaseActivity} that simply contains a single fragment. The intent
 * used to invoke this activity is forwarded to the fragment as arguments during
 * fragment instantiation. Derived activities should only need to implement
 * {@link com.google.android.apps.iosched.ui.BaseSinglePaneActivity#onCreatePane()}
 * .
 */
public abstract class BaseFragmentTabsActivity extends BaseActivity {

    private TabHost mTabHost;
    private TabWidget mTabWidget;
    private TabsAdapter mTabsAdapter;
    private ViewPager mViewPager;

    protected final ArrayList<RefreshObserver> mRefreshObservers = new ArrayList<RefreshObserver>();

    private final static String TAG = BaseFragmentTabsActivity.class.getSimpleName();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final long start = System.currentTimeMillis();
        Log.d(TAG, "Starting onCreate()...");
        setContentView(R.layout.activity_fragment_tabs_pager);

        final HorizontalScrollView scroller = (HorizontalScrollView) findViewById(R.id.tab_scroller);
        mTabHost = (TabHost) findViewById(android.R.id.tabhost);
        mTabWidget = (TabWidget) findViewById(android.R.id.tabs);
        mViewPager = (ViewPager) findViewById(R.id.tab_pager);

        mTabHost.setup();
        mTabsAdapter = new TabsAdapter(this, mTabHost, mViewPager);

        getActivityHelper().setupActionBar(getTitle(), 0);

        final String customTitle = getIntent().getStringExtra(Intent.EXTRA_TITLE);
        getActivityHelper().setActionBarTitle(customTitle != null ? customTitle : getTitle());

        if (savedInstanceState == null) {
            onCreateTabs();
            //mFragment = onCreatePane();
            //mFragment.setArguments(intentToFragmentArguments(getIntent()));

        } else {
            mTabHost.setCurrentTabByTag(savedInstanceState.getString("tab"));
        }

        mTabHost.setOnTabChangedListener(new TabHost.OnTabChangeListener() {
            @Override
            public void onTabChanged(String tabId) {
                final int position = mTabHost.getCurrentTab();
                final View tab = mTabWidget.getChildTabViewAt(position);
                scroller.smoothScrollTo(tab.getLeft(), 0);
                mViewPager.setCurrentItem(position);
            }
        });
        Log.d(TAG, "onCreate() done in " + (System.currentTimeMillis() - start) + "ms.");

    }

    protected void addTab(String key, String label, Class<?> fragment, int imageResource) {
        final long start = System.currentTimeMillis();
        Log.d(TAG, "Starting addTab()...");
        final View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab, mTabWidget, false);
        final TextView title = (TextView) tabIndicator.findViewById(R.id.tab_title);
        final ImageView icon = (ImageView) tabIndicator.findViewById(R.id.tab_icon);
        title.setText(label);
        icon.setImageResource(imageResource);
        mTabsAdapter.addTab(mTabHost.newTabSpec(key).setIndicator(tabIndicator), label, fragment, null);
        Log.d(TAG, "addTab() done in " + (System.currentTimeMillis() - start) + "ms.");
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putString("tab", mTabHost.getCurrentTabTag());
    }

    public synchronized void registerRefreshObserver(RefreshObserver observer) {
        mRefreshObservers.add(observer);
        Log.d(TAG, "Registered refresh observer.");
    }

    public synchronized void unregisterRefreshObserver(RefreshObserver observer) {
        if (mRefreshObservers.remove(observer)) {
            Log.d(TAG, "Unregistered refresh observer.");
        } else {
            Log.w(TAG, "Could not find observer, NOT unregistering!");
        }
    }

    /**
     * Called in <code>onCreate</code> when the fragment constituting this
     * activity is needed. The returned fragment's arguments will be set to the
     * intent used to invoke this activity.
     */
    protected abstract void onCreateTabs();
}