Fix sharp corners on placeholders (#7142)

All placeholder now have round corners matching the corner radius of the
image that will eventually load.

app/src/main/java/de/danoeh/antennapod/ui/screen/drawer/NavListAdapter.java

@@ -24,6 +24,7 @@ import androidx.recyclerview.widget.RecyclerView;
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.request.RequestOptions;
 import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.ui.common.ImagePlaceholder;
 import de.danoeh.antennapod.ui.screen.preferences.PreferenceActivity;
 import de.danoeh.antennapod.ui.screen.AllEpisodesFragment;
 import de.danoeh.antennapod.ui.screen.download.CompletedDownloadsFragment;
@@ -314,13 +315,14 @@ public class NavListAdapter extends RecyclerView.Adapter<NavListAdapter.Holder>
             return;
         }
 
+        float radius = 4 * context.getResources().getDisplayMetrics().density;
         Glide.with(context)
                 .load(feed.getImageUrl())
                 .apply(new RequestOptions()
-                    .placeholder(R.color.light_gray)
+                    .placeholder(ImagePlaceholder.getDrawable(context, radius))
-                    .error(R.color.light_gray)
+                    .error(ImagePlaceholder.getDrawable(context, radius))
                     .transform(new FitCenter(),
-                            new RoundedCorners((int) (4 * context.getResources().getDisplayMetrics().density)))
+                            new RoundedCorners((int) radius))
                     .dontAnimate())
                 .into(holder.image);
 

app/src/main/java/de/danoeh/antennapod/ui/screen/episode/ItemFragment.java

@@ -52,6 +52,7 @@ import de.danoeh.antennapod.storage.database.DBReader;
 import de.danoeh.antennapod.ui.common.Converter;
 import de.danoeh.antennapod.ui.common.DateFormatter;
 import de.danoeh.antennapod.ui.common.CircularProgressBar;
+import de.danoeh.antennapod.ui.common.ImagePlaceholder;
 import de.danoeh.antennapod.ui.common.ThemeUtils;
 import de.danoeh.antennapod.ui.cleaner.ShownotesCleaner;
 import de.danoeh.antennapod.ui.episodes.ImageResourceUtils;
@@ -286,10 +287,11 @@ public class ItemFragment extends Fragment {
             txtvPublished.setContentDescription(DateFormatter.formatForAccessibility(item.getPubDate()));
         }
 
+        float radius = 8 * getResources().getDisplayMetrics().density;
         RequestOptions options = new RequestOptions()
-                .error(R.color.light_gray)
+                .error(ImagePlaceholder.getDrawable(getContext(), radius))
                 .transform(new FitCenter(),
-                        new RoundedCorners((int) (8 * getResources().getDisplayMetrics().density)))
+                        new RoundedCorners((int) radius))
                 .dontAnimate();
 
         Glide.with(this)

ui/common/src/main/java/de/danoeh/antennapod/ui/common/ImagePlaceholder.java

@@ -0,0 +1,19 @@
+package de.danoeh.antennapod.ui.common;
+
+import android.content.Context;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.GradientDrawable;
+
+import androidx.core.content.ContextCompat;
+
+
+public class ImagePlaceholder {
+    public static Drawable getDrawable(Context context, float cornerRadius) {
+        GradientDrawable drawable = new GradientDrawable();
+        drawable.setShape(GradientDrawable.RECTANGLE);
+        int color = ContextCompat.getColor(context, R.color.light_gray);
+        drawable.setColor(color);
+        drawable.setCornerRadius(cornerRadius);
+        return drawable;
+    }
+}

ui/discovery/src/main/java/de/danoeh/antennapod/ui/discovery/FeedDiscoverAdapter.java

@@ -10,6 +10,7 @@ import com.bumptech.glide.load.resource.bitmap.FitCenter;
 import com.bumptech.glide.load.resource.bitmap.RoundedCorners;
 import com.bumptech.glide.request.RequestOptions;
 import de.danoeh.antennapod.net.discovery.PodcastSearchResult;
+import de.danoeh.antennapod.ui.common.ImagePlaceholder;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -61,12 +62,12 @@ public class FeedDiscoverAdapter extends BaseAdapter {
         final PodcastSearchResult podcast = getItem(position);
         holder.imageView.setContentDescription(podcast.title);
 
+        float radius = 8 * context.getResources().getDisplayMetrics().density;
         Glide.with(context)
                 .load(podcast.imageUrl)
                 .apply(new RequestOptions()
-                        .placeholder(R.color.light_gray)
+                        .placeholder(ImagePlaceholder.getDrawable(context, radius))
-                        .transform(new FitCenter(), new RoundedCorners((int)
+                        .transform(new FitCenter(), new RoundedCorners((int) radius))
-                                (8 * context.getResources().getDisplayMetrics().density)))
                         .dontAnimate())
                 .into(holder.imageView);
 

ui/discovery/src/main/java/de/danoeh/antennapod/ui/discovery/OnlineSearchAdapter.java

@@ -18,6 +18,7 @@ import com.bumptech.glide.request.RequestOptions;
 import java.util.List;
 
 import de.danoeh.antennapod.net.discovery.PodcastSearchResult;
+import de.danoeh.antennapod.ui.common.ImagePlaceholder;
 
 public class OnlineSearchAdapter extends ArrayAdapter<PodcastSearchResult> {
     /**
@@ -76,14 +77,14 @@ public class OnlineSearchAdapter extends ArrayAdapter<PodcastSearchResult> {
             viewHolder.authorView.setVisibility(View.GONE);
         }
 
-        //Update the empty imageView with the image from the feed
+        float radius = 4 * context.getResources().getDisplayMetrics().density;
         Glide.with(context)
                 .load(podcast.imageUrl)
                 .apply(new RequestOptions()
-                    .placeholder(R.color.light_gray)
+                    .placeholder(ImagePlaceholder.getDrawable(context, radius))
                     .diskCacheStrategy(DiskCacheStrategy.NONE)
                     .transform(new FitCenter(),
-                            new RoundedCorners((int) (4 * context.getResources().getDisplayMetrics().density)))
+                            new RoundedCorners((int) radius))
                     .dontAnimate())
                 .into(viewHolder.coverView);
 

ui/preferences/src/main/java/de/danoeh/antennapod/ui/preferences/screen/about/SimpleIconListAdapter.java

@@ -13,6 +13,7 @@ import com.bumptech.glide.load.resource.bitmap.FitCenter;
 import com.bumptech.glide.load.resource.bitmap.RoundedCorners;
 import com.bumptech.glide.request.RequestOptions;
 
+import de.danoeh.antennapod.ui.common.ImagePlaceholder;
 import de.danoeh.antennapod.ui.preferences.R;
 
 import java.util.List;
@@ -43,12 +44,13 @@ public class SimpleIconListAdapter<T extends SimpleIconListAdapter.ListItem> ext
         if (item.imageUrl == null) {
             view.findViewById(R.id.icon).setVisibility(View.GONE);
         } else {
+            float radius = 4 * context.getResources().getDisplayMetrics().density;
             Glide.with(context)
                     .load(item.imageUrl)
                     .apply(new RequestOptions()
+                            .placeholder(ImagePlaceholder.getDrawable(context, radius))
                             .diskCacheStrategy(DiskCacheStrategy.NONE)
-                            .transform(new FitCenter(), new RoundedCorners((int)
+                            .transform(new FitCenter(), new RoundedCorners((int) radius))
-                                    (4 * context.getResources().getDisplayMetrics().density)))
                             .dontAnimate())
                     .into(((ImageView) view.findViewById(R.id.icon)));
         }