X-Git-Url: https://git.mdrn.pl/wl-app.git/blobdiff_plain/48b2fe9f7c2dc3d9aeaaa6dbfb27c7da4f3235ff..269195b3729c1bdc22e9053ee4ebca667ea8549d:/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/zoom/ZoomPhotosAdapter.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/zoom/ZoomPhotosAdapter.java b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/zoom/ZoomPhotosAdapter.java
new file mode 100644
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--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/view/news/zoom/ZoomPhotosAdapter.java
@@ -0,0 +1,105 @@
+package com.moiseum.wolnelektury.view.news.zoom;
+
+import android.content.Context;
+import android.graphics.PorterDuff;
+import android.support.annotation.NonNull;
+import android.support.v4.content.ContextCompat;
+import android.support.v4.view.PagerAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import com.bumptech.glide.Glide;
+import com.bumptech.glide.load.resource.drawable.GlideDrawable;
+import com.bumptech.glide.request.RequestListener;
+import com.bumptech.glide.request.target.Target;
+import com.moiseum.wolnelektury.R;
+
+import java.lang.ref.WeakReference;
+import java.util.List;
+
+import it.sephiroth.android.library.imagezoom.ImageViewTouch;
+import it.sephiroth.android.library.imagezoom.ImageViewTouchBase;
+
+/**
+ * Created by Piotr Ostrowski on 07.08.2018.
+ */
+public class ZoomPhotosAdapter extends PagerAdapter {
+
+	private List<String> photoUrls;
+	private LayoutInflater inflater;
+	private WeakReference<Context> mContext;
+
+	ZoomPhotosAdapter(List<String> photoUrl, Context context) {
+		inflater = LayoutInflater.from(context);
+		mContext = new WeakReference<>(context);
+		this.photoUrls = photoUrl;
+		for (String photo : photoUrl) {
+			Glide.with(context).load(photo).dontTransform().preload();
+		}
+	}
+
+	@NonNull
+	@Override
+	public Object instantiateItem(@NonNull ViewGroup collection, int position) {
+		final String photoUrl = photoUrls.get(position);
+		View view = inflater.inflate(R.layout.zoom_item, collection, false);
+
+		final ProgressBar pbLoading = view.findViewById(R.id.pbLoading);
+		final TextView tvLoading = view.findViewById(R.id.tvLoading);
+		final Button btnRetry = view.findViewById(R.id.btnRetry);
+		final ImageViewTouch ivPhoto = view.findViewById(R.id.ivPointPhoto);
+
+		btnRetry.setOnClickListener(v -> {
+			pbLoading.setVisibility(View.VISIBLE);
+			tvLoading.setVisibility(View.VISIBLE);
+			btnRetry.setVisibility(View.GONE);
+			fetchImageWithGlide(photoUrl, pbLoading, tvLoading, btnRetry, ivPhoto);
+		});
+
+		ivPhoto.setDisplayType(ImageViewTouchBase.DisplayType.FIT_HEIGHT);
+		fetchImageWithGlide(photoUrl, pbLoading, tvLoading, btnRetry, ivPhoto);
+
+		collection.addView(view);
+		return view;
+	}
+
+	@Override
+	public void destroyItem(@NonNull ViewGroup collection, int position, @NonNull Object view) {
+		collection.removeView((View) view);
+	}
+
+	@Override
+	public int getCount() {
+		return photoUrls.size();
+	}
+
+	@Override
+	public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
+		return view == object;
+	}
+
+	private void fetchImageWithGlide(String photoUrl, final ProgressBar pbLoading, final TextView tvLoading, final Button btnRetry, ImageViewTouch ivPhoto) {
+		if (mContext.get() != null) {
+			Glide.with(mContext.get()).load(photoUrl).dontTransform().listener(new RequestListener<String, GlideDrawable>() {
+				@Override
+				public boolean onException(Exception e, String model, Target<GlideDrawable> target, boolean isFirstResource) {
+					pbLoading.setVisibility(View.GONE);
+					tvLoading.setVisibility(View.GONE);
+					btnRetry.setVisibility(View.VISIBLE);
+					return true;
+				}
+
+				@Override
+				public boolean onResourceReady(GlideDrawable resource, String model, Target<GlideDrawable> target, boolean isFromMemoryCache, boolean isFirstResource) {
+					pbLoading.setVisibility(View.GONE);
+					tvLoading.setVisibility(View.GONE);
+					return false;
+				}
+			}).into(ivPhoto);
+		}
+	}
+}