Show song durations in queue (by adding a TextView) (#761)

* Show song durations in queue (by adding a TextView)

This partially addresses https://github.com/vanilla-music/vanilla/issues/647

* Make duration TextView gone by default

* Show song durations in playlist

app/src/main/java/ch/blinkenlights/android/vanilla/DraggableRow.java

@@ -38,6 +38,7 @@ public class DraggableRow extends LinearLayout implements Checkable {
 	private boolean mLayoutSet;
 
 	private TextView mTextView;
+	private TextView mDurationView;
 	private CheckedTextView mCheckBox;
 	private View mPmark;
 	private ImageView mDragger;
@@ -61,6 +62,7 @@ public class DraggableRow extends LinearLayout implements Checkable {
 	public void onFinishInflate() {
 		mCheckBox  = (CheckedTextView)this.findViewById(R.id.checkbox);
 		mTextView  = (TextView)this.findViewById(R.id.text);
+		mDurationView = findViewById(R.id.duration);
 		mPmark     = (View)this.findViewById(R.id.pmark);
 		mDragger   = (ImageView)this.findViewById(R.id.dragger);
 		mCoverView = (LazyCoverView)this.findViewById(R.id.cover);
@@ -82,6 +84,7 @@ public class DraggableRow extends LinearLayout implements Checkable {
 				case LAYOUT_DRAGGABLE:
 					highlightRow(false); // make this visible
 					mCoverView.setVisibility(View.VISIBLE);
+					mDurationView.setVisibility(View.VISIBLE);
 					showDragger(true);
 					break;
 				case LAYOUT_LISTVIEW:
@@ -159,6 +162,13 @@ public class DraggableRow extends LinearLayout implements Checkable {
 		return mTextView;
 	}
 
+	/**
+	 * @return a TextView intended to display duration
+	 */
+	public TextView getDurationView() {
+		return mDurationView;
+	}
+
 	/**
 	 * Returns an instance of our coverview
 	 */

app/src/main/java/ch/blinkenlights/android/vanilla/PlaylistAdapter.java

@@ -25,13 +25,12 @@ package ch.blinkenlights.android.vanilla;
 
 import ch.blinkenlights.android.medialibrary.MediaLibrary;
 
-import android.content.ContentValues;
 import android.content.Context;
 import android.database.Cursor;
-import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
+import android.text.format.DateUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -50,6 +49,7 @@ public class PlaylistAdapter extends CursorAdapter implements Handler.Callback {
 		MediaLibrary.PlaylistSongColumns.SONG_ID,
 		MediaLibrary.SongColumns.ALBUM_ID,
 		MediaLibrary.PlaylistSongColumns.POSITION,
+		MediaLibrary.SongColumns.DURATION,
 	};
 
 	private final Context mContext;
@@ -114,6 +114,9 @@ public class PlaylistAdapter extends CursorAdapter implements Handler.Callback {
 		textView.setText(cursor.getString(1));
 		textView.setTag(cursor.getLong(3));
 
+		String duration = DateUtils.formatElapsedTime(cursor.getLong(6) / 1000);
+		dview.getDurationView().setText(duration);
+
 		LazyCoverView cover = dview.getCoverView();
 		cover.setCover(MediaUtils.TYPE_ALBUM, cursor.getLong(4), null);
 	}

app/src/main/java/ch/blinkenlights/android/vanilla/ShowQueueAdapter.java

@@ -23,13 +23,11 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.view.LayoutInflater;
-import android.widget.TextView;
 
 import android.graphics.Color;
 import android.text.SpannableStringBuilder;
 import android.text.style.ForegroundColorSpan;
 import android.text.Spannable;
-import android.text.SpannableStringBuilder;
 
 public class ShowQueueAdapter extends BaseAdapter {
 	/**
@@ -144,6 +142,7 @@ public class ShowQueueAdapter extends BaseAdapter {
 			sb.setSpan(new ForegroundColorSpan(Color.GRAY), song.title.length() + 1, sb.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 			row.getTextView().setText(sb);
 			row.getCoverView().setCover(MediaUtils.TYPE_ALBUM, song.albumId, null);
+			row.getDurationView().setText(song.getFormattedDuration());
 		}
 
 		row.highlightRow(position == mHighlightRow);

app/src/main/java/ch/blinkenlights/android/vanilla/Song.java

@@ -27,7 +27,8 @@ import ch.blinkenlights.android.medialibrary.MediaLibrary;
 import android.content.Context;
 import android.database.Cursor;
 import android.graphics.Bitmap;
-import android.provider.MediaStore;
+import android.text.format.DateUtils;
+
 /**
  * Represents a Song backed by the MediaStore. Includes basic metadata and
  * utilities to retrieve songs from the MediaStore.
@@ -203,6 +204,13 @@ public class Song implements Comparable<Song> {
 		return song.id;
 	}
 
+	/**
+	 * @return duration of this song in the form "MM:SS" or "H:MM:SS"
+	 */
+	public String getFormattedDuration() {
+		return DateUtils.formatElapsedTime(duration / 1000);
+	}
+
 	/**
 	 * Query the large album art for this song.
 	 *

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

@@ -45,6 +45,14 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
 		android:layout_height="@dimen/row_normal_height"
 		android:layout_marginLeft="@dimen/text_padding"
 		android:layout_weight="1" />
+	<TextView
+		android:id="@+id/duration"
+		android:layout_width="wrap_content"
+		android:layout_height="match_parent"
+		android:layout_marginLeft="@dimen/text_padding"
+		android:visibility="gone"
+		android:textColor="?android:textColorPrimary"
+		android:gravity="center_vertical" />
 	<CheckedTextView
 		android:id="@+id/checkbox"
 		android:visibility="gone"