com.shopify.buy.ui.ViewPagerAdapter.java Source code

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Here is the source code for com.shopify.buy.ui.ViewPagerAdapter.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 Shopify Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.shopify.buy.ui;

import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;

public abstract class ViewPagerAdapter extends PagerAdapter {
    /**
     * Get a View that displays the data at the specified position in the data set.
     *
     * @param position The position of the item within the adapter's data set of the item whose view we want.
     * @param pager    The ViewPager that this view will eventually be attached to.
     *
     * @return A View corresponding to the data at the specified position.
     */
    public abstract View getView(int position, ViewPager pager);

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        ViewPager pager = (ViewPager) container;
        View view = getView(position, pager);
        pager.addView(view);

        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object view) {
        container.removeView((View) view);
    }
}