com.github.suzukaze.yarulistfortodoly.view.ProjectsPageAdapter.java Source code

Introduction

Here is the source code for com.github.suzukaze.yarulistfortodoly.view.ProjectsPageAdapter.java

Source

/*
 * Copyright (C) 2015 Jun Hiroe
 *
 * 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.github.suzukaze.yarulistfortodoly.view;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.view.ViewPager;
import android.view.ViewGroup;

import com.github.suzukaze.yarulistfortodoly.fragment.ItemListFragment;
import com.github.suzukaze.yarulistfortodoly.model.Project;

import java.util.ArrayList;
import java.util.List;

public class ProjectsPageAdapter extends FragmentPagerAdapter {

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

    private List<Project> projects = new ArrayList<>();

    public ProjectsPageAdapter(FragmentManager fragmentManager) {
        super(fragmentManager);
    }

    public void clear() {
        projects.clear();
    }

    public void addAll(List<Project> projects) {
        this.projects.addAll(projects);
    }

    @Override
    public Fragment getItem(int position) {
        return ItemListFragment.newInstance(projects.get(position));
    }

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

    @Override
    public CharSequence getPageTitle(int position) {
        return projects.get(position).getContent();
    }

    @Override
    public int getItemPosition(Object object) {
        return POSITION_NONE;
    }

    public void destroyAllItem(ViewPager pager) {
        for (int i = 0, size = getCount(); i < size - 1; i++) {
            Object obj = instantiateItem(pager, i);
            if (obj != null)
                destroyItem(pager, i, obj);
        }
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        super.destroyItem(container, position, object);

        if (position <= getCount()) {
            FragmentManager manager = ((Fragment) object).getFragmentManager();
            FragmentTransaction trans = manager.beginTransaction();
            trans.remove((Fragment) object);
            trans.commit();
        }
    }

    public Fragment findFragmentByPosition(ViewPager viewPager, int position) {
        return (Fragment) instantiateItem(viewPager, position);
    }
}