Java tutorial
/******************************************************************************* * Copyright (c) 2012 rmateus. * All rights reserved. This program and the accompanying materials * are made available under the terms of the GNU Public License v2.0 * which accompanies this distribution, and is available at * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html ******************************************************************************/ package com.aptoide.amethyst.ui; import android.annotation.SuppressLint; import android.content.Context; import android.content.res.Configuration; import android.support.v4.view.PagerAdapter; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import com.aptoide.amethyst.R; import com.bumptech.glide.Glide; import java.util.ArrayList; public class ViewPagerAdapterScreenshots extends PagerAdapter { private ArrayList<String> urls; public ViewPagerAdapterScreenshots(ArrayList<String> urls) { this.urls = urls; } @Override public Object instantiateItem(ViewGroup container, final int position) { @SuppressLint("InflateParams") final View v = LayoutInflater.from(container.getContext()).inflate(R.layout.row_item_screenshots_big, null); Glide.with(container.getContext()).load(urls.get(position)) .placeholder(getPlaceholder(container.getContext())) .into((ImageView) v.findViewById(R.id.screenshot_image_big)); container.addView(v); return v; } private int getPlaceholder(Context ctx) { int id; if (ctx.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) { id = R.drawable.placeholder_144x240; } else { id = R.drawable.placeholder_256x160; } return id; } @Override public int getCount() { return urls.size(); } @Override public boolean isViewFromObject(View arg0, Object arg1) { return arg0.equals(arg1); } @Override public void destroyItem(ViewGroup container, int position, Object object) { container.removeView((View) object); } }