Java tutorial
/** * 2016 Telenav, Inc. All Rights Reserved * <p/> * Licensed under the Apache License, Version 2.0 (the "License"). * <p/> * 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.telenav.expandablepager; import android.support.v4.view.PagerAdapter; import android.view.View; import android.view.ViewGroup; import java.util.List; /** * Adapter for ExpandablePager. Extend this class and pass it to your pager via {@link ExpandablePager#setAdapter(ExpandablePagerAdapter)} */ public class ExpandablePagerAdapter<T> extends PagerAdapter { protected List<T> items; public ExpandablePagerAdapter(List<T> items) { this.items = items; } @Override public int getCount() { return items.size(); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } /** * Attaches the view to the container and gives it a specific id. Return the result of this method when overriding {@link #instantiateItem(ViewGroup, int)} * @param container view container * @param v inflated view * @param position position of the view in the adapter * @return inflated view */ protected View attach(ViewGroup container, View v, int position) { v.setId(ExpandablePager.INTERNAL_PAGE_ID + position); container.addView(v); return v; } }