Merge "MediaSession2: Add more detailed documentation for addPlaylistItem()" into pi-dev

am: e41b39d6e9

Change-Id: I8882a20c5b50c1c13850bff3e162fa5b2be4d4f7

media/java/android/media/MediaController2.java

@@ -736,8 +736,10 @@ public class MediaController2 implements AutoCloseable {
         return mProvider.getPlaylistMetadata_impl();
     }
 
+
     /**
-     * Inserts the media item to the playlist at position index.
+     * Adds the media item to the playlist at position index. Index equals or greater than
+     * the current playlist size will add the item at the end of the playlist.
      * <p>
      * This will not change the currently playing media item.
      * If index is less than or equal to the current index of the playlist,

media/java/android/media/MediaPlaylistAgent.java

@@ -229,10 +229,15 @@ public abstract class MediaPlaylistAgent {
     }
 
     /**
-     * Adds the media item to the playlist at the index
+     * Adds the media item to the playlist at position index. Index equals or greater than
+     * the current playlist size will add the item at the end of the playlist.
+     * <p>
+     * This will not change the currently playing media item.
+     * If index is less than or equal to the current index of the playlist,
+     * the current index of the playlist will be incremented correspondingly.
      *
-     * @param index index
-     * @param item media item to add
+     * @param index the index you want to add
+     * @param item the media item you want to add
      */
     public void addPlaylistItem(int index, @NonNull MediaItem2 item) {
         mProvider.addPlaylistItem_impl(index, item);

media/java/android/media/MediaSession2.java

@@ -1647,7 +1647,8 @@ public class MediaSession2 implements AutoCloseable {
     }
 
     /**
-     * Adds the media item to the playlist at position index.
+     * Adds the media item to the playlist at position index. Index equals or greater than
+     * the current playlist size will add the item at the end of the playlist.
      * <p>
      * This will not change the currently playing media item.
      * If index is less than or equal to the current index of the play list,