Added duration to chapters list

Closes #2174

app/src/main/java/de/danoeh/antennapod/adapter/ChaptersListAdapter.java

@@ -60,6 +60,7 @@ public class ChaptersListAdapter extends ArrayAdapter<Chapter> {
             defaultTextColor = holder.title.getTextColors().getDefaultColor();
             holder.start = (TextView) convertView.findViewById(R.id.txtvStart);
             holder.link = (TextView) convertView.findViewById(R.id.txtvLink);
+            holder.duration = (TextView) convertView.findViewById(R.id.txtvDuration);
             holder.butPlayChapter = (ImageButton) convertView.findViewById(R.id.butPlayChapter);
             convertView.setTag(holder);
         } else {
@@ -70,6 +71,16 @@ public class ChaptersListAdapter extends ArrayAdapter<Chapter> {
         holder.title.setText(sc.getTitle());
         holder.start.setText(Converter.getDurationStringLong((int) sc
                 .getStart()));
+
+        long duration;
+        if (position + 1 < media.getChapters().size()) {
+            duration = media.getChapters().get(position + 1).getStart() - sc.getStart();
+        } else {
+            duration = media.getDuration() - sc.getStart();
+        }
+        holder.duration.setText(getContext().getString(R.string.chapter_duration,
+                Converter.getDurationStringLong((int) duration)));
+
         if (sc.getLink() != null) {
             holder.link.setVisibility(View.VISIBLE);
             holder.link.setText(sc.getLink());
@@ -155,6 +166,7 @@ public class ChaptersListAdapter extends ArrayAdapter<Chapter> {
         TextView title;
         TextView start;
         TextView link;
+        TextView duration;
         ImageButton butPlayChapter;
     }
 

app/src/main/res/layout/simplechapter_item.xml

@@ -53,6 +53,16 @@
             tools:text="Link"
             tools:background="@android:color/holo_green_dark" />
 
+        <TextView
+                android:id="@+id/txtvDuration"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:focusable="false"
+                android:focusableInTouchMode="false"
+                android:maxLines="1"
+                tools:text="Duration"
+                tools:background="@android:color/holo_green_dark" />
+
     </LinearLayout>
 
     <include layout="@layout/vertical_list_divider" />

core/src/main/res/values/strings.xml

@@ -71,6 +71,7 @@
     <string name="refresh_label">Refresh</string>
     <string name="external_storage_error_msg">No external storage is available. Please make sure that external storage is mounted so that the app can work properly.</string>
     <string name="chapters_label">Chapters</string>
+    <string name="chapter_duration">Duration: %1$s</string>
     <string name="shownotes_label">Shownotes</string>
     <string name="description_label">Description</string>
     <string name="most_recent_prefix">Most recent episode:\u0020</string>