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

   1 package com.moiseum.wolnelektury.view.news.zoom;
   2
   3 import android.content.Context;
   4 import android.graphics.PorterDuff;
   5 import android.support.annotation.NonNull;
   6 import android.support.v4.content.ContextCompat;
   7 import android.support.v4.view.PagerAdapter;
   8 import android.view.LayoutInflater;
   9 import android.view.View;
  10 import android.view.ViewGroup;
  11 import android.widget.Button;
  12 import android.widget.ProgressBar;
  13 import android.widget.TextView;
  14
  15 import com.bumptech.glide.Glide;
  16 import com.bumptech.glide.load.resource.drawable.GlideDrawable;
  17 import com.bumptech.glide.request.RequestListener;
  18 import com.bumptech.glide.request.target.Target;
  19 import com.moiseum.wolnelektury.R;
  20
  21 import java.lang.ref.WeakReference;
  22 import java.util.List;
  23
  24 import it.sephiroth.android.library.imagezoom.ImageViewTouch;
  25 import it.sephiroth.android.library.imagezoom.ImageViewTouchBase;
  26
  27 /**
  28  * Created by Piotr Ostrowski on 07.08.2018.
  29  */
  30 public class ZoomPhotosAdapter extends PagerAdapter {
  31
  32         private List<String> photoUrls;
  33         private LayoutInflater inflater;
  34         private WeakReference<Context> mContext;
  35
  36         ZoomPhotosAdapter(List<String> photoUrl, Context context) {
  37                 inflater = LayoutInflater.from(context);
  38                 mContext = new WeakReference<>(context);
  39                 this.photoUrls = photoUrl;
  40                 for (String photo : photoUrl) {
  41                         Glide.with(context).load(photo).dontTransform().preload();
  42                 }
  43         }
  44
  45         @NonNull
  46         @Override
  47         public Object instantiateItem(@NonNull ViewGroup collection, int position) {
  48                 final String photoUrl = photoUrls.get(position);
  49                 View view = inflater.inflate(R.layout.zoom_item, collection, false);
  50
  51                 final ProgressBar pbLoading = view.findViewById(R.id.pbLoading);
  52                 final TextView tvLoading = view.findViewById(R.id.tvLoading);
  53                 final Button btnRetry = view.findViewById(R.id.btnRetry);
  54                 final ImageViewTouch ivPhoto = view.findViewById(R.id.ivPointPhoto);
  55
  56                 btnRetry.setOnClickListener(v -> {
  57                         pbLoading.setVisibility(View.VISIBLE);
  58                         tvLoading.setVisibility(View.VISIBLE);
  59                         btnRetry.setVisibility(View.GONE);
  60                         fetchImageWithGlide(photoUrl, pbLoading, tvLoading, btnRetry, ivPhoto);
  61                 });
  62
  63                 ivPhoto.setDisplayType(ImageViewTouchBase.DisplayType.FIT_HEIGHT);
  64                 fetchImageWithGlide(photoUrl, pbLoading, tvLoading, btnRetry, ivPhoto);
  65
  66                 collection.addView(view);
  67                 return view;
  68         }
  69
  70         @Override
  71         public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
  72                 collection.removeView((View) view);
  73         }
  74
  75         @Override
  76         public int getCount() {
  77                 return photoUrls.size();
  78         }
  79
  80         @Override
  81         public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
  82                 return view == object;
  83         }
  84
  85         private void fetchImageWithGlide(String photoUrl, final ProgressBar pbLoading, final TextView tvLoading, final Button btnRetry, ImageViewTouch ivPhoto) {
  86                 if (mContext.get() != null) {
  87                         Glide.with(mContext.get()).load(photoUrl).dontTransform().listener(new RequestListener<String, GlideDrawable>() {
  88                                 @Override
  89                                 public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
  90                                         pbLoading.setVisibility(View.GONE);
  91                                         tvLoading.setVisibility(View.GONE);
  92                                         btnRetry.setVisibility(View.VISIBLE);
  93                                         return true;
  94                                 }
  95
  96                                 @Override
  97                                 public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
  98                                         pbLoading.setVisibility(View.GONE);
  99                                         tvLoading.setVisibility(View.GONE);
 100                                         return false;
 101                                 }
 102                         }).into(ivPhoto);
 103                 }
 104         }
 105 }