com.experiments.core.application.adapters.CommonPagerAdapter.java Source code

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Here is the source code for com.experiments.core.application.adapters.CommonPagerAdapter.java

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/*
 *
 *  Copyright  (c) 2016 Krupal Shah, Harsh Bhavsar
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

package com.experiments.core.application.adapters;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.List;

/**
 * Author : Krupal Shah
 * Date : 09-Apr-16
 * <p>
 * common class for all view pager adapters
 * there are two overloaded constructors. one is without titles and other is with titles<br/>
 * if titles are given; it will call {@link FragmentPagerAdapter#getPageTitle(int)} to set title
 */
public class CommonPagerAdapter extends FragmentPagerAdapter {

    private final List<Fragment> fragments;
    private List<String> titles;

    public CommonPagerAdapter(FragmentManager fm, List<Fragment> fragments) {
        super(fm);
        this.fragments = fragments;
    }

    public CommonPagerAdapter(FragmentManager fm, List<Fragment> fragments, List<String> titles) {
        super(fm);
        this.fragments = fragments;
        this.titles = titles;
        if (fragments.size() != titles.size()) {
            throw new IllegalArgumentException("no. of titles and no. of fragments must be same in size");
        }
    }

    @Override
    public Fragment getItem(int position) {
        return fragments.get(position);
    }

    @Override
    public int getCount() {
        return fragments.size();
    }

    @Override
    public CharSequence getPageTitle(int position) {
        return titles != null ? titles.get(position) : null;
    }
}