Added Android code

[wl-app.git] / Android / app / src / main / java / com / moiseum / wolnelektury / view / news / single / NewsGalleryAdapter.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/single/NewsGalleryAdapter.java b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/single/NewsGalleryAdapter.java
new file mode 100644 (file)
index 0000000..a5dff6a
--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/single/NewsGalleryAdapter.java
@@ -0,0 +1,78 @@
+package com.moiseum.wolnelektury.view.news.single;
+
+import android.annotation.SuppressLint;
+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 com.bumptech.glide.Glide;
+import com.bumptech.glide.load.engine.DiskCacheStrategy;
+import com.moiseum.wolnelektury.R;
+
+import java.util.List;
+
+import io.reactivex.Observable;
+import io.reactivex.subjects.PublishSubject;
+
+/**
+ * Created by Piotr Ostrowski on 06.08.2018.
+ */
+public class NewsGalleryAdapter extends PagerAdapter {
+
+       private final LayoutInflater inflater;
+       private final List<String> galleryUrls;
+
+       private PublishSubject<Integer> pagerOnClickSubject = PublishSubject.create();
+       private View.OnClickListener pageClickListener = v -> {
+               int position = (int) v.getTag();
+               pagerOnClickSubject.onNext(position);
+       };
+
+       NewsGalleryAdapter(List<String> galleryUrls, Context context) {
+               this.galleryUrls = galleryUrls;
+               this.inflater = LayoutInflater.from(context);
+       }
+
+       @NonNull
+       @SuppressLint("InflateParams")
+       @Override
+       public Object instantiateItem(@NonNull ViewGroup container, int position) {
+               View view = inflater.inflate(R.layout.fragment_single_news_gallery_item, null);
+               view.setTag(position);
+               view.setOnClickListener(pageClickListener);
+               container.addView(view);
+
+               ImageView ivGallery = view.findViewById(R.id.tvGalleryImage);
+               Glide.with(view.getContext())
+                               .load(galleryUrls.get(position))
+                               .diskCacheStrategy(DiskCacheStrategy.ALL)
+                               .dontTransform()
+                               .into(ivGallery);
+
+               return view;
+       }
+
+       @Override
+       public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
+               View view = (View) object;
+               container.removeView(view);
+       }
+
+       @Override
+       public int getCount() {
+               return galleryUrls.size();
+       }
+
+       @Override
+       public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+               return view == object;
+       }
+
+       Observable<Integer> getPageClickObservable() {
+               return pagerOnClickSubject.hide();
+       }
+}