com.lemon.kva.view.fragmentswitcher.FragmentArrayPagerAdapter.java Source code

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Here is the source code for com.lemon.kva.view.fragmentswitcher.FragmentArrayPagerAdapter.java

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/*
 * Copyright 2014 Jacob Tabak
 *
 * 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.lemon.kva.view.fragmentswitcher;

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

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

/**
 * A {@link android.support.v4.app.FragmentPagerAdapter} that does not need to
 * be subclassed and can be filled like an array.
 */
@SuppressWarnings("UnusedDeclaration")
public class FragmentArrayPagerAdapter<T extends Fragment> extends FragmentPagerAdapter {
    private List<T> mItems = new ArrayList<T>();

    public FragmentArrayPagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public T getItem(int i) {
        return mItems.get(i);
    }

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

    /**
     * Adds the specified fragment at the end of the array.
     * @param fragment
     */
    public void add(T fragment) {
        mItems.add(fragment);
        notifyDataSetChanged();
    }

    /**
     * Adds the specified Collection of fragments at the end of the array.
     * @param fragments
     */
    public void addAll(Collection<T> fragments) {
        mItems.addAll(fragments);
        notifyDataSetChanged();
    }

    /**
     * Adds the specified fragments at the end of the array.
     * @param fragments
     */
    public void addAll(T... fragments) {
        for (T fragment : fragments) {
            mItems.add(fragment);
        }
        notifyDataSetChanged();
    }

    /**
     * Remove all elements from the list.
     */
    public void clear() {
        mItems.clear();
        notifyDataSetChanged();
    }

    /**
     * Inserts the specified fragment at the specified index in the array.
     * @param fragment
     * @param index
     */
    public void insert(T fragment, int index) {
        mItems.add(index, fragment);
        notifyDataSetChanged();
    }
}