jp.co.rediscovery.firstflight.ConfigPagerAdapter.java Source code

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Here is the source code for jp.co.rediscovery.firstflight.ConfigPagerAdapter.java

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package jp.co.rediscovery.firstflight;
/*
 * By downloading, copying, installing or using the software you agree to this license.
 * If you do not agree to this license, do not download, install,
 * copy or use the software.
 *
 *
 *                           License Agreement
 *                        (3-clause BSD License)
 *
 * Copyright (C) 2015-2018, saki t_saki@serenegiant.com
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *
 *   * Neither the names of the copyright holders nor the names of the contributors
 *     may be used to endorse or promote products derived from this software
 *     without specific prior written permission.
 *
 * This software is provided by the copyright holders and contributors "as is" and
 * any express or implied warranties, including, but not limited to, the implied
 * warranties of merchantability and fitness for a particular purpose are disclaimed.
 * In no event shall copyright holders or contributors be liable for any direct,
 * indirect, incidental, special, exemplary, or consequential damages
 * (including, but not limited to, procurement of substitute goods or services;
 * loss of use, data, or profits; or business interruption) however caused
 * and on any theory of liability, whether in contract, strict liability,
 * or tort (including negligence or otherwise) arising in any way out of
 * the use of this software, even if advised of the possibility of such damage.
 */

import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * ????View??????PagerAdapter
 */
public class ConfigPagerAdapter extends PagerAdapter {
    private static final boolean DEBUG = false; // FIXME ??false????
    private static String TAG = ConfigPagerAdapter.class.getSimpleName();

    private final BaseFragment mParent;
    private final LayoutInflater mInflater;
    private final PagerAdapterConfig[] mConfigs;

    public ConfigPagerAdapter(final BaseFragment parent, final LayoutInflater inflater,
            final PagerAdapterConfig[] configs) {
        super();
        mParent = parent;
        mInflater = inflater;
        mConfigs = configs;
    }

    @NonNull
    @Override
    public synchronized Object instantiateItem(@NonNull final ViewGroup container, final int position) {

        if (DEBUG)
            Log.v(TAG, "instantiateItem:position=" + position);
        View view = null;
        final int n = mConfigs != null ? mConfigs.length : 0;
        if ((position >= 0) && (position < n)) {
            final PagerAdapterConfig config = mConfigs[position];
            view = mInflater.inflate(config.layout_id, container, false);
            config.handler.initialize(mParent, view);
        }
        if (view != null) {
            container.addView(view);
        }
        return view;
    }

    @Override
    public synchronized void destroyItem(@NonNull final ViewGroup container, final int position,
            @NonNull final Object object) {

        if (DEBUG)
            Log.v(TAG, "destroyItem:position=" + position);
        if (object instanceof View) {
            container.removeView((View) object);
        }
    }

    @Override
    public int getCount() {
        return mConfigs != null ? mConfigs.length : 0;
    }

    @Override
    public boolean isViewFromObject(@NonNull final View view, @NonNull final Object object) {
        return view.equals(object);
    }

    @Override
    public CharSequence getPageTitle(final int position) {
        if (DEBUG)
            Log.v(TAG, "getPageTitle:position=" + position);
        CharSequence result = null;
        final int n = mConfigs != null ? mConfigs.length : 0;
        if ((position >= 0) && (position < n)) {
            result = mParent.getString(mConfigs[position].title_id);
        }
        return result;
    }
}