com.yojiokisoft.yumekanow.adapter.MainPagerAdapter.java Source code

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Here is the source code for com.yojiokisoft.yumekanow.adapter.MainPagerAdapter.java

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/*
 * Copyright (C) 2013 YojiokiSoft
 * 
 * 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 3 of the License, 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 this
 * program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.yojiokisoft.yumekanow.adapter;

import java.util.ArrayList;

import android.content.Context;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TabHost;
import android.widget.TabWidget;

import com.yojiokisoft.yumekanow.fragment.CardFragment_;
import com.yojiokisoft.yumekanow.fragment.SleepFragment_;
import com.yojiokisoft.yumekanow.fragment.StateFragment_;

/**
 * ?
 */
public class MainPagerAdapter extends FragmentPagerAdapter
        implements TabHost.OnTabChangeListener, ViewPager.OnPageChangeListener {

    private final Context mContext;
    private final TabHost mTabHost;
    private final ViewPager mPager;
    private final ArrayList<String> mTabs = new ArrayList<String>();

    /**
     * ?????
     */
    private class DummyTabFactory implements TabHost.TabContentFactory {
        private final Context context;

        public DummyTabFactory(Context context) {
            this.context = context;
        }

        public View createTabContent(String tag) {
            View v = new View(context);
            v.setMinimumWidth(0);
            v.setMinimumHeight(0);
            return v;
        }
    }

    /**
     * .
     * 
     * @param fragmentManager
     * @param context
     * @param tabHost
     * @param pager
     */
    public MainPagerAdapter(FragmentManager fragmentManager, Context context, TabHost tabHost, ViewPager pager) {
        super(fragmentManager);
        this.mContext = context;
        this.mTabHost = tabHost;
        this.mPager = pager;
        this.mTabHost.setOnTabChangedListener(this);
        this.mPager.setAdapter(this);
        this.mPager.setOnPageChangeListener(this);
    }

    /**
     * ?.
     * 
     * @param tabSpec
     * @param content
     */
    public void addTab(TabHost.TabSpec tabSpec, String content) {
        tabSpec.setContent(new DummyTabFactory(this.mContext));
        mTabs.add(content);
        mTabHost.addTab(tabSpec);
        notifyDataSetChanged();
    }

    /**
     * @see FragmentPagerAdapter#getItem(int)
     */
    @Override
    public Fragment getItem(int position) {
        if (position == 0) {
            return new CardFragment_();
        } else if (position == 1) {
            return new StateFragment_();
        } else {
            return new SleepFragment_();
        }
    }

    /**
     * @see FragmentPagerAdapter#getCount()
     */
    @Override
    public int getCount() {
        return 3;
    }

    /**
     * @see ViewPager.OnPageChangeListener#onPageScrollStateChanged(int)
     */
    @Override
    public void onPageScrollStateChanged(int state) {
        ;
    }

    /**
     * @see ViewPager.OnPageChangeListener#onPageScrolled(int, float, int)
     */
    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOggsetPixesl) {
        ;
    }

    /**
     * @see ViewPager.OnPageChangeListener#onPageSelected(int)
     */
    @Override
    public void onPageSelected(int position) {
        TabWidget widget = mTabHost.getTabWidget();

        int oldFocus = widget.getDescendantFocusability();
        widget.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);

        mTabHost.setCurrentTab(position);

        widget.setDescendantFocusability(oldFocus);
    }

    /**
     * @see TabHost.OnTabChangeListener#onTabChanged(String)
     */
    @Override
    public void onTabChanged(String tabId) {
        int position = mTabHost.getCurrentTab();

        mPager.setCurrentItem(position);
    }
}