Android/app/src/main/java/com/moiseum/wolnelektury/view/news/zoom/ZoomFragment.java

   1 package com.moiseum.wolnelektury.view.news.zoom;
   2
   3 import android.os.Bundle;
   4 import android.support.v4.view.ViewPager;
   5 import android.view.View;
   6
   7 import com.moiseum.wolnelektury.R;
   8 import com.moiseum.wolnelektury.base.mvp.PresenterFragment;
   9
  10 import java.util.ArrayList;
  11 import java.util.List;
  12
  13 import butterknife.BindView;
  14 import me.relex.circleindicator.CircleIndicator;
  15
  16 /**
  17  * Created by Piotr Ostrowski on 07.08.2018.
  18  */
  19 public class ZoomFragment extends PresenterFragment<ZoomPresenter> implements ZoomView {
  20
  21         private static final String PHOTOS_URL_KEY = "PhotoUrls";
  22         private static final String POSITION_KEY = "PositionKey";
  23         private static final int FIVE_PAGES = 5;
  24
  25         @BindView(R.id.vpGallery)
  26         ViewPager vpGallery;
  27         @BindView(R.id.indicator)
  28         CircleIndicator indicator;
  29
  30         public static ZoomFragment newInstance(ArrayList<String> photoUrls, int position) {
  31                 ZoomFragment fragment = new ZoomFragment();
  32                 Bundle args = new Bundle(1);
  33                 args.putStringArrayList(PHOTOS_URL_KEY, photoUrls);
  34                 args.putInt(POSITION_KEY, position);
  35                 fragment.setArguments(args);
  36                 return fragment;
  37         }
  38
  39         @Override
  40         protected ZoomPresenter createPresenter() {
  41                 if (getArguments() == null || getArguments().getStringArrayList(PHOTOS_URL_KEY) == null || getArguments().getInt(POSITION_KEY, -1) == -1) {
  42                         throw new IllegalStateException("Fragment is missing arguments");
  43                 }
  44                 ArrayList<String> urls = getArguments().getStringArrayList(PHOTOS_URL_KEY);
  45                 int position = getArguments().getInt(POSITION_KEY);
  46                 return new ZoomPresenter(urls, position, this);
  47         }
  48
  49         @Override
  50         public int getLayoutResourceId() {
  51                 return R.layout.fragment_zoom;
  52         }
  53
  54         @Override
  55         public void prepareView(View view, Bundle savedInstanceState) {
  56                 // nop.
  57         }
  58
  59         @Override
  60         public void initializeZoomView(List<String> photoUrls, int initialPosition) {
  61                 vpGallery.setAdapter(new ZoomPhotosAdapter(photoUrls, getContext()));
  62                 vpGallery.setOffscreenPageLimit(FIVE_PAGES);
  63                 vpGallery.setCurrentItem(initialPosition, false);
  64                 indicator.setViewPager(vpGallery);
  65         }
  66 }