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Roctik

Mar 21st, 2019

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package com.guide.view.adapter;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v4.view.PagerAdapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import com.bumptech.glide.Glide;
import com.bumptech.glide.request.RequestOptions;
import com.guide.R;
import com.guide.model.Page;
import java.util.ArrayList;
public class ViewPagerRandAdapter extends PagerAdapter {
private Context context;//контекст
private ArrayList<Page> randPages;//список рандомных страниц
/**
* Конструктор
*
* @param context - контекст
* @param randPages - список рандомных страниц
*/
public ViewPagerRandAdapter(Context context, ArrayList<Page> randPages) {
this.context = context;
this.randPages = randPages;
}
/**
* Метод - получение количества
*/
@Override
public int getCount() {
return randPages.size();
}
@Override
public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
return (view == object);
}
@NonNull
@Override
public Object instantiateItem(@NonNull ViewGroup container, int position) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.view_pager_item, container, false);
ImageView image = view.findViewById(R.id.imageRand);
TextView titleRand = view.findViewById(R.id.titleRand);
TextView descriptionRand = view.findViewById(R.id.descriptionRand);
Glide.with(context)
.load(randPages.get(position).getThumbnail().getSource())//закрузка фото
.apply(new RequestOptions()
.centerCrop())
.into(image);
titleRand.setText(randPages.get(position).getTitle());
descriptionRand.setText(randPages.get(position).getExtract());
container.addView(view);
return view;
}
//удаление обекта
@Override
public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
container.removeView((RelativeLayout) object);
}
}

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