media-compat/java/android/support/v4/media/MediaDescriptionCompat.java - platform/frameworks/support - Git at Google

 /*
  * Copyright (C) 2014 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package android.support.v4.media;

 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;

 /**
  * A simple set of metadata for a media item suitable for display. This can be
  * created using the Builder or retrieved from existing metadata using
  * {@link MediaMetadataCompat#getDescription()}.
  */
 public final class MediaDescriptionCompat implements Parcelable {
     /**
      * Used as a long extra field to indicate the bluetooth folder type of the media item as
      * specified in the section 6.10.2.2 of the Bluetooth AVRCP 1.5. This is valid only for
      * {@link MediaBrowserCompat.MediaItem} with
      * {@link MediaBrowserCompat.MediaItem#FLAG_BROWSABLE}. The value should be one of the
      * following:
      * <ul>
      * <li>{@link #BT_FOLDER_TYPE_MIXED}</li>
      * <li>{@link #BT_FOLDER_TYPE_TITLES}</li>
      * <li>{@link #BT_FOLDER_TYPE_ALBUMS}</li>
      * <li>{@link #BT_FOLDER_TYPE_ARTISTS}</li>
      * <li>{@link #BT_FOLDER_TYPE_GENRES}</li>
      * <li>{@link #BT_FOLDER_TYPE_PLAYLISTS}</li>
      * <li>{@link #BT_FOLDER_TYPE_YEARS}</li>
      * </ul>
      *
      * @see #getExtras()
      */
     public static final String EXTRA_BT_FOLDER_TYPE = "android.media.extra.BT_FOLDER_TYPE";

     /**
      * The type of folder that is unknown or contains media elements of mixed types as specified in
      * the section 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_MIXED = 0;

     /**
      * The type of folder that contains media elements only as specified in the section 6.10.2.2 of
      * the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_TITLES = 1;

     /**
      * The type of folder that contains folders categorized by album as specified in the section
      * 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_ALBUMS = 2;

     /**
      * The type of folder that contains folders categorized by artist as specified in the section
      * 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_ARTISTS = 3;

     /**
      * The type of folder that contains folders categorized by genre as specified in the section
      * 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_GENRES = 4;

     /**
      * The type of folder that contains folders categorized by playlist as specified in the section
      * 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_PLAYLISTS = 5;

     /**
      * The type of folder that contains folders categorized by year as specified in the section
      * 6.10.2.2 of the Bluetooth AVRCP 1.5.
      */
     public static final long BT_FOLDER_TYPE_YEARS = 6;

     /**
      * Custom key to store a media URI on API 21-22 devices (before it became part of the
      * framework class) when parceling/converting to and from framework objects.
      *
      * @hide
      */
     public static final String DESCRIPTION_KEY_MEDIA_URI =
             "android.support.v4.media.description.MEDIA_URI";
     /**
      * Custom key to store whether the original Bundle provided by the developer was null
      *
      * @hide
      */
     public static final String DESCRIPTION_KEY_NULL_BUNDLE_FLAG =
             "android.support.v4.media.description.NULL_BUNDLE_FLAG";
     /**
      * A unique persistent id for the content or null.
      */
     private final String mMediaId;
     /**
      * A primary title suitable for display or null.
      */
     private final CharSequence mTitle;
     /**
      * A subtitle suitable for display or null.
      */
     private final CharSequence mSubtitle;
     /**
      * A description suitable for display or null.
      */
     private final CharSequence mDescription;
     /**
      * A bitmap icon suitable for display or null.
      */
     private final Bitmap mIcon;
     /**
      * A Uri for an icon suitable for display or null.
      */
     private final Uri mIconUri;
     /**
      * Extras for opaque use by apps/system.
      */
     private final Bundle mExtras;
     /**
      * A Uri to identify this content.
      */
     private final Uri mMediaUri;

     /**
      * A cached copy of the equivalent framework object.
      */
     private Object mDescriptionObj;

     private MediaDescriptionCompat(String mediaId, CharSequence title, CharSequence subtitle,
             CharSequence description, Bitmap icon, Uri iconUri, Bundle extras, Uri mediaUri) {
         mMediaId = mediaId;
         mTitle = title;
         mSubtitle = subtitle;
         mDescription = description;
         mIcon = icon;
         mIconUri = iconUri;
         mExtras = extras;
         mMediaUri = mediaUri;
     }

     private MediaDescriptionCompat(Parcel in) {
         mMediaId = in.readString();
         mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
         mSubtitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
         mDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
         mIcon = in.readParcelable(null);
         mIconUri = in.readParcelable(null);
         mExtras = in.readBundle();
         mMediaUri = in.readParcelable(null);
     }

     /**
      * Returns the media id or null. See
      * {@link MediaMetadataCompat#METADATA_KEY_MEDIA_ID}.
      */
     @Nullable
     public String getMediaId() {
         return mMediaId;
     }

     /**
      * Returns a title suitable for display or null.
      *
      * @return A title or null.
      */
     @Nullable
     public CharSequence getTitle() {
         return mTitle;
     }

     /**
      * Returns a subtitle suitable for display or null.
      *
      * @return A subtitle or null.
      */
     @Nullable
     public CharSequence getSubtitle() {
         return mSubtitle;
     }

     /**
      * Returns a description suitable for display or null.
      *
      * @return A description or null.
      */
     @Nullable
     public CharSequence getDescription() {
         return mDescription;
     }

     /**
      * Returns a bitmap icon suitable for display or null.
      *
      * @return An icon or null.
      */
     @Nullable
     public Bitmap getIconBitmap() {
         return mIcon;
     }

     /**
      * Returns a Uri for an icon suitable for display or null.
      *
      * @return An icon uri or null.
      */
     @Nullable
     public Uri getIconUri() {
         return mIconUri;
     }

     /**
      * Returns any extras that were added to the description.
      *
      * @return A bundle of extras or null.
      */
     @Nullable
     public Bundle getExtras() {
         return mExtras;
     }

     /**
      * Returns a Uri representing this content or null.
      *
      * @return A media Uri or null.
      */
     @Nullable
     public Uri getMediaUri() {
         return mMediaUri;
     }

     @Override
     public int describeContents() {
         return 0;
     }

     @Override
     public void writeToParcel(Parcel dest, int flags) {
         if (Build.VERSION.SDK_INT < 21) {
             dest.writeString(mMediaId);
             TextUtils.writeToParcel(mTitle, dest, flags);
             TextUtils.writeToParcel(mSubtitle, dest, flags);
             TextUtils.writeToParcel(mDescription, dest, flags);
             dest.writeParcelable(mIcon, flags);
             dest.writeParcelable(mIconUri, flags);
             dest.writeBundle(mExtras);
             dest.writeParcelable(mMediaUri, flags);
         } else {
             MediaDescriptionCompatApi21.writeToParcel(getMediaDescription(), dest, flags);
         }
     }

     @Override
     public String toString() {
         return mTitle + ", " + mSubtitle + ", " + mDescription;
     }

     /**
      * Gets the underlying framework {@link android.media.MediaDescription}
      * object.
      * <p>
      * This method is only supported on
      * {@link android.os.Build.VERSION_CODES#LOLLIPOP} and later.
      * </p>
      *
      * @return An equivalent {@link android.media.MediaDescription} object, or
      *         null if none.
      */
     public Object getMediaDescription() {
         if (mDescriptionObj != null || Build.VERSION.SDK_INT < 21) {
             return mDescriptionObj;
         }
         Object bob = MediaDescriptionCompatApi21.Builder.newInstance();
         MediaDescriptionCompatApi21.Builder.setMediaId(bob, mMediaId);
         MediaDescriptionCompatApi21.Builder.setTitle(bob, mTitle);
         MediaDescriptionCompatApi21.Builder.setSubtitle(bob, mSubtitle);
         MediaDescriptionCompatApi21.Builder.setDescription(bob, mDescription);
         MediaDescriptionCompatApi21.Builder.setIconBitmap(bob, mIcon);
         MediaDescriptionCompatApi21.Builder.setIconUri(bob, mIconUri);
         // Media URI was not added until API 23, so add it to the Bundle of extras to
         // ensure the data is not lost - this ensures that
         // fromMediaDescription(getMediaDescription(mediaDescriptionCompat)) returns
         // an equivalent MediaDescriptionCompat on all API levels
         Bundle extras = mExtras;
         if (Build.VERSION.SDK_INT < 23 && mMediaUri != null) {
             if (extras == null) {
                 extras = new Bundle();
                 extras.putBoolean(DESCRIPTION_KEY_NULL_BUNDLE_FLAG, true);
             }
             extras.putParcelable(DESCRIPTION_KEY_MEDIA_URI, mMediaUri);
         }
         MediaDescriptionCompatApi21.Builder.setExtras(bob, extras);
         if (Build.VERSION.SDK_INT >= 23) {
             MediaDescriptionCompatApi23.Builder.setMediaUri(bob, mMediaUri);
         }
         mDescriptionObj = MediaDescriptionCompatApi21.Builder.build(bob);

         return mDescriptionObj;
     }

     /**
      * Creates an instance from a framework
      * {@link android.media.MediaDescription} object.
      * <p>
      * This method is only supported on API 21+.
      * </p>
      *
      * @param descriptionObj A {@link android.media.MediaDescription} object, or
      *            null if none.
      * @return An equivalent {@link MediaMetadataCompat} object, or null if
      *         none.
      */
     public static MediaDescriptionCompat fromMediaDescription(Object descriptionObj) {
         if (descriptionObj == null || Build.VERSION.SDK_INT < 21) {
             return null;
         }

         Builder bob = new Builder();
         bob.setMediaId(MediaDescriptionCompatApi21.getMediaId(descriptionObj));
         bob.setTitle(MediaDescriptionCompatApi21.getTitle(descriptionObj));
         bob.setSubtitle(MediaDescriptionCompatApi21.getSubtitle(descriptionObj));
         bob.setDescription(MediaDescriptionCompatApi21.getDescription(descriptionObj));
         bob.setIconBitmap(MediaDescriptionCompatApi21.getIconBitmap(descriptionObj));
         bob.setIconUri(MediaDescriptionCompatApi21.getIconUri(descriptionObj));
         Bundle extras = MediaDescriptionCompatApi21.getExtras(descriptionObj);
         Uri mediaUri = extras == null ? null :
                 (Uri) extras.getParcelable(DESCRIPTION_KEY_MEDIA_URI);
         if (mediaUri != null) {
             if (extras.containsKey(DESCRIPTION_KEY_NULL_BUNDLE_FLAG) && extras.size() == 2) {
                 // The extras were only created for the media URI, so we set it back to null to
                 // ensure mediaDescriptionCompat.getExtras() equals
                 // fromMediaDescription(getMediaDescription(mediaDescriptionCompat)).getExtras()
                 extras = null;
             } else {
                 // Remove media URI keys to ensure mediaDescriptionCompat.getExtras().keySet()
                 // equals fromMediaDescription(getMediaDescription(mediaDescriptionCompat))
                 // .getExtras().keySet()
                 extras.remove(DESCRIPTION_KEY_MEDIA_URI);
                 extras.remove(DESCRIPTION_KEY_NULL_BUNDLE_FLAG);
             }
         }
         bob.setExtras(extras);
         if (mediaUri != null) {
             bob.setMediaUri(mediaUri);
         } else if (Build.VERSION.SDK_INT >= 23) {
             bob.setMediaUri(MediaDescriptionCompatApi23.getMediaUri(descriptionObj));
         }
         MediaDescriptionCompat descriptionCompat = bob.build();
         descriptionCompat.mDescriptionObj = descriptionObj;

         return descriptionCompat;
     }

     public static final Parcelable.Creator<MediaDescriptionCompat> CREATOR =
             new Parcelable.Creator<MediaDescriptionCompat>() {
             @Override
                 public MediaDescriptionCompat createFromParcel(Parcel in) {
                     if (Build.VERSION.SDK_INT < 21) {
                         return new MediaDescriptionCompat(in);
                     } else {
                         return fromMediaDescription(MediaDescriptionCompatApi21.fromParcel(in));
                     }
                 }

             @Override
                 public MediaDescriptionCompat[] newArray(int size) {
                     return new MediaDescriptionCompat[size];
                 }
             };

     /**
      * Builder for {@link MediaDescriptionCompat} objects.
      */
     public static final class Builder {
         private String mMediaId;
         private CharSequence mTitle;
         private CharSequence mSubtitle;
         private CharSequence mDescription;
         private Bitmap mIcon;
         private Uri mIconUri;
         private Bundle mExtras;
         private Uri mMediaUri;

         /**
          * Creates an initially empty builder.
          */
         public Builder() {
         }

         /**
          * Sets the media id.
          *
          * @param mediaId The unique id for the item or null.
          * @return this
          */
         public Builder setMediaId(@Nullable String mediaId) {
             mMediaId = mediaId;
             return this;
         }

         /**
          * Sets the title.
          *
          * @param title A title suitable for display to the user or null.
          * @return this
          */
         public Builder setTitle(@Nullable CharSequence title) {
             mTitle = title;
             return this;
         }

         /**
          * Sets the subtitle.
          *
          * @param subtitle A subtitle suitable for display to the user or null.
          * @return this
          */
         public Builder setSubtitle(@Nullable CharSequence subtitle) {
             mSubtitle = subtitle;
             return this;
         }

         /**
          * Sets the description.
          *
          * @param description A description suitable for display to the user or
          *            null.
          * @return this
          */
         public Builder setDescription(@Nullable CharSequence description) {
             mDescription = description;
             return this;
         }

         /**
          * Sets the icon.
          *
          * @param icon A {@link Bitmap} icon suitable for display to the user or
          *            null.
          * @return this
          */
         public Builder setIconBitmap(@Nullable Bitmap icon) {
             mIcon = icon;
             return this;
         }

         /**
          * Sets the icon uri.
          *
          * @param iconUri A {@link Uri} for an icon suitable for display to the
          *            user or null.
          * @return this
          */
         public Builder setIconUri(@Nullable Uri iconUri) {
             mIconUri = iconUri;
             return this;
         }

         /**
          * Sets a bundle of extras.
          *
          * @param extras The extras to include with this description or null.
          * @return this
          */
         public Builder setExtras(@Nullable Bundle extras) {
             mExtras = extras;
             return this;
         }

         /**
          * Sets the media uri.
          *
          * @param mediaUri The content's {@link Uri} for the item or null.
          * @return this
          */
         public Builder setMediaUri(@Nullable Uri mediaUri) {
             mMediaUri = mediaUri;
             return this;
         }

         /**
          * Creates a {@link MediaDescriptionCompat} instance with the specified
          * fields.
          *
          * @return A MediaDescriptionCompat instance.
          */
         public MediaDescriptionCompat build() {
             return new MediaDescriptionCompat(mMediaId, mTitle, mSubtitle, mDescription, mIcon,
                     mIconUri, mExtras, mMediaUri);
         }
     }
 }
	/*
	* Copyright (C) 2014 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package android.support.v4.media;

	import android.graphics.Bitmap;
	import android.net.Uri;
	import android.os.Build;
	import android.os.Bundle;
	import android.os.Parcel;
	import android.os.Parcelable;
	import android.support.annotation.Nullable;
	import android.text.TextUtils;

	/**
	* A simple set of metadata for a media item suitable for display. This can be
	* created using the Builder or retrieved from existing metadata using
	* {@link MediaMetadataCompat#getDescription()}.
	*/
	public final class MediaDescriptionCompat implements Parcelable {
	/**
	* Used as a long extra field to indicate the bluetooth folder type of the media item as
	* specified in the section 6.10.2.2 of the Bluetooth AVRCP 1.5. This is valid only for
	* {@link MediaBrowserCompat.MediaItem} with
	* {@link MediaBrowserCompat.MediaItem#FLAG_BROWSABLE}. The value should be one of the
	* following:
	* <ul>
	* <li>{@link #BT_FOLDER_TYPE_MIXED}</li>
	* <li>{@link #BT_FOLDER_TYPE_TITLES}</li>
	* <li>{@link #BT_FOLDER_TYPE_ALBUMS}</li>
	* <li>{@link #BT_FOLDER_TYPE_ARTISTS}</li>
	* <li>{@link #BT_FOLDER_TYPE_GENRES}</li>
	* <li>{@link #BT_FOLDER_TYPE_PLAYLISTS}</li>
	* <li>{@link #BT_FOLDER_TYPE_YEARS}</li>
	* </ul>
	*
	* @see #getExtras()
	*/
	public static final String EXTRA_BT_FOLDER_TYPE = "android.media.extra.BT_FOLDER_TYPE";

	/**
	* The type of folder that is unknown or contains media elements of mixed types as specified in
	* the section 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_MIXED = 0;

	/**
	* The type of folder that contains media elements only as specified in the section 6.10.2.2 of
	* the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_TITLES = 1;

	/**
	* The type of folder that contains folders categorized by album as specified in the section
	* 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_ALBUMS = 2;

	/**
	* The type of folder that contains folders categorized by artist as specified in the section
	* 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_ARTISTS = 3;

	/**
	* The type of folder that contains folders categorized by genre as specified in the section
	* 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_GENRES = 4;

	/**
	* The type of folder that contains folders categorized by playlist as specified in the section
	* 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_PLAYLISTS = 5;

	/**
	* The type of folder that contains folders categorized by year as specified in the section
	* 6.10.2.2 of the Bluetooth AVRCP 1.5.
	*/
	public static final long BT_FOLDER_TYPE_YEARS = 6;

	/**
	* Custom key to store a media URI on API 21-22 devices (before it became part of the
	* framework class) when parceling/converting to and from framework objects.
	*
	* @hide
	*/
	public static final String DESCRIPTION_KEY_MEDIA_URI =
	"android.support.v4.media.description.MEDIA_URI";
	/**
	* Custom key to store whether the original Bundle provided by the developer was null
	*
	* @hide
	*/
	public static final String DESCRIPTION_KEY_NULL_BUNDLE_FLAG =
	"android.support.v4.media.description.NULL_BUNDLE_FLAG";
	/**
	* A unique persistent id for the content or null.
	*/
	private final String mMediaId;
	/**
	* A primary title suitable for display or null.
	*/
	private final CharSequence mTitle;
	/**
	* A subtitle suitable for display or null.
	*/
	private final CharSequence mSubtitle;
	/**
	* A description suitable for display or null.
	*/
	private final CharSequence mDescription;
	/**
	* A bitmap icon suitable for display or null.
	*/
	private final Bitmap mIcon;
	/**
	* A Uri for an icon suitable for display or null.
	*/
	private final Uri mIconUri;
	/**
	* Extras for opaque use by apps/system.
	*/
	private final Bundle mExtras;
	/**
	* A Uri to identify this content.
	*/
	private final Uri mMediaUri;

	/**
	* A cached copy of the equivalent framework object.
	*/
	private Object mDescriptionObj;

	private MediaDescriptionCompat(String mediaId, CharSequence title, CharSequence subtitle,
	CharSequence description, Bitmap icon, Uri iconUri, Bundle extras, Uri mediaUri) {
	mMediaId = mediaId;
	mTitle = title;
	mSubtitle = subtitle;
	mDescription = description;
	mIcon = icon;
	mIconUri = iconUri;
	mExtras = extras;
	mMediaUri = mediaUri;
	}

	private MediaDescriptionCompat(Parcel in) {
	mMediaId = in.readString();
	mTitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
	mSubtitle = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
	mDescription = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
	mIcon = in.readParcelable(null);
	mIconUri = in.readParcelable(null);
	mExtras = in.readBundle();
	mMediaUri = in.readParcelable(null);
	}

	/**
	* Returns the media id or null. See
	* {@link MediaMetadataCompat#METADATA_KEY_MEDIA_ID}.
	*/
	@Nullable
	public String getMediaId() {
	return mMediaId;
	}

	/**
	* Returns a title suitable for display or null.
	*
	* @return A title or null.
	*/
	@Nullable
	public CharSequence getTitle() {
	return mTitle;
	}

	/**
	* Returns a subtitle suitable for display or null.
	*
	* @return A subtitle or null.
	*/
	@Nullable
	public CharSequence getSubtitle() {
	return mSubtitle;
	}

	/**
	* Returns a description suitable for display or null.
	*
	* @return A description or null.
	*/
	@Nullable
	public CharSequence getDescription() {
	return mDescription;
	}

	/**
	* Returns a bitmap icon suitable for display or null.
	*
	* @return An icon or null.
	*/
	@Nullable
	public Bitmap getIconBitmap() {
	return mIcon;
	}

	/**
	* Returns a Uri for an icon suitable for display or null.
	*
	* @return An icon uri or null.
	*/
	@Nullable
	public Uri getIconUri() {
	return mIconUri;
	}

	/**
	* Returns any extras that were added to the description.
	*
	* @return A bundle of extras or null.
	*/
	@Nullable
	public Bundle getExtras() {
	return mExtras;
	}

	/**
	* Returns a Uri representing this content or null.
	*
	* @return A media Uri or null.
	*/
	@Nullable
	public Uri getMediaUri() {
	return mMediaUri;
	}

	@Override
	public int describeContents() {
	return 0;
	}

	@Override
	public void writeToParcel(Parcel dest, int flags) {
	if (Build.VERSION.SDK_INT < 21) {
	dest.writeString(mMediaId);
	TextUtils.writeToParcel(mTitle, dest, flags);
	TextUtils.writeToParcel(mSubtitle, dest, flags);
	TextUtils.writeToParcel(mDescription, dest, flags);
	dest.writeParcelable(mIcon, flags);
	dest.writeParcelable(mIconUri, flags);
	dest.writeBundle(mExtras);
	dest.writeParcelable(mMediaUri, flags);
	} else {
	MediaDescriptionCompatApi21.writeToParcel(getMediaDescription(), dest, flags);
	}
	}

	@Override
	public String toString() {
	return mTitle + ", " + mSubtitle + ", " + mDescription;
	}

	/**
	* Gets the underlying framework {@link android.media.MediaDescription}
	* object.
	* <p>
	* This method is only supported on
	* {@link android.os.Build.VERSION_CODES#LOLLIPOP} and later.
	* </p>
	*
	* @return An equivalent {@link android.media.MediaDescription} object, or
	* null if none.
	*/
	public Object getMediaDescription() {
	if (mDescriptionObj != null \|\| Build.VERSION.SDK_INT < 21) {
	return mDescriptionObj;
	}
	Object bob = MediaDescriptionCompatApi21.Builder.newInstance();
	MediaDescriptionCompatApi21.Builder.setMediaId(bob, mMediaId);
	MediaDescriptionCompatApi21.Builder.setTitle(bob, mTitle);
	MediaDescriptionCompatApi21.Builder.setSubtitle(bob, mSubtitle);
	MediaDescriptionCompatApi21.Builder.setDescription(bob, mDescription);
	MediaDescriptionCompatApi21.Builder.setIconBitmap(bob, mIcon);
	MediaDescriptionCompatApi21.Builder.setIconUri(bob, mIconUri);
	// Media URI was not added until API 23, so add it to the Bundle of extras to
	// ensure the data is not lost - this ensures that
	// fromMediaDescription(getMediaDescription(mediaDescriptionCompat)) returns
	// an equivalent MediaDescriptionCompat on all API levels
	Bundle extras = mExtras;
	if (Build.VERSION.SDK_INT < 23 && mMediaUri != null) {
	if (extras == null) {
	extras = new Bundle();
	extras.putBoolean(DESCRIPTION_KEY_NULL_BUNDLE_FLAG, true);
	}
	extras.putParcelable(DESCRIPTION_KEY_MEDIA_URI, mMediaUri);
	}
	MediaDescriptionCompatApi21.Builder.setExtras(bob, extras);
	if (Build.VERSION.SDK_INT >= 23) {
	MediaDescriptionCompatApi23.Builder.setMediaUri(bob, mMediaUri);
	}
	mDescriptionObj = MediaDescriptionCompatApi21.Builder.build(bob);

	return mDescriptionObj;
	}

	/**
	* Creates an instance from a framework
	* {@link android.media.MediaDescription} object.
	* <p>
	* This method is only supported on API 21+.
	* </p>
	*
	* @param descriptionObj A {@link android.media.MediaDescription} object, or
	* null if none.
	* @return An equivalent {@link MediaMetadataCompat} object, or null if
	* none.
	*/
	public static MediaDescriptionCompat fromMediaDescription(Object descriptionObj) {
	if (descriptionObj == null \|\| Build.VERSION.SDK_INT < 21) {
	return null;
	}

	Builder bob = new Builder();
	bob.setMediaId(MediaDescriptionCompatApi21.getMediaId(descriptionObj));
	bob.setTitle(MediaDescriptionCompatApi21.getTitle(descriptionObj));
	bob.setSubtitle(MediaDescriptionCompatApi21.getSubtitle(descriptionObj));
	bob.setDescription(MediaDescriptionCompatApi21.getDescription(descriptionObj));
	bob.setIconBitmap(MediaDescriptionCompatApi21.getIconBitmap(descriptionObj));
	bob.setIconUri(MediaDescriptionCompatApi21.getIconUri(descriptionObj));
	Bundle extras = MediaDescriptionCompatApi21.getExtras(descriptionObj);
	Uri mediaUri = extras == null ? null :
	(Uri) extras.getParcelable(DESCRIPTION_KEY_MEDIA_URI);
	if (mediaUri != null) {
	if (extras.containsKey(DESCRIPTION_KEY_NULL_BUNDLE_FLAG) && extras.size() == 2) {
	// The extras were only created for the media URI, so we set it back to null to
	// ensure mediaDescriptionCompat.getExtras() equals
	// fromMediaDescription(getMediaDescription(mediaDescriptionCompat)).getExtras()
	extras = null;
	} else {
	// Remove media URI keys to ensure mediaDescriptionCompat.getExtras().keySet()
	// equals fromMediaDescription(getMediaDescription(mediaDescriptionCompat))
	// .getExtras().keySet()
	extras.remove(DESCRIPTION_KEY_MEDIA_URI);
	extras.remove(DESCRIPTION_KEY_NULL_BUNDLE_FLAG);
	}
	}
	bob.setExtras(extras);
	if (mediaUri != null) {
	bob.setMediaUri(mediaUri);
	} else if (Build.VERSION.SDK_INT >= 23) {
	bob.setMediaUri(MediaDescriptionCompatApi23.getMediaUri(descriptionObj));
	}
	MediaDescriptionCompat descriptionCompat = bob.build();
	descriptionCompat.mDescriptionObj = descriptionObj;

	return descriptionCompat;
	}

	public static final Parcelable.Creator<MediaDescriptionCompat> CREATOR =
	new Parcelable.Creator<MediaDescriptionCompat>() {
	@Override
	public MediaDescriptionCompat createFromParcel(Parcel in) {
	if (Build.VERSION.SDK_INT < 21) {
	return new MediaDescriptionCompat(in);
	} else {
	return fromMediaDescription(MediaDescriptionCompatApi21.fromParcel(in));
	}
	}

	@Override
	public MediaDescriptionCompat[] newArray(int size) {
	return new MediaDescriptionCompat[size];
	}
	};

	/**
	* Builder for {@link MediaDescriptionCompat} objects.
	*/
	public static final class Builder {
	private String mMediaId;
	private CharSequence mTitle;
	private CharSequence mSubtitle;
	private CharSequence mDescription;
	private Bitmap mIcon;
	private Uri mIconUri;
	private Bundle mExtras;
	private Uri mMediaUri;

	/**
	* Creates an initially empty builder.
	*/
	public Builder() {
	}

	/**
	* Sets the media id.
	*
	* @param mediaId The unique id for the item or null.
	* @return this
	*/
	public Builder setMediaId(@Nullable String mediaId) {
	mMediaId = mediaId;
	return this;
	}

	/**
	* Sets the title.
	*
	* @param title A title suitable for display to the user or null.
	* @return this
	*/
	public Builder setTitle(@Nullable CharSequence title) {
	mTitle = title;
	return this;
	}

	/**
	* Sets the subtitle.
	*
	* @param subtitle A subtitle suitable for display to the user or null.
	* @return this
	*/
	public Builder setSubtitle(@Nullable CharSequence subtitle) {
	mSubtitle = subtitle;
	return this;
	}

	/**
	* Sets the description.
	*
	* @param description A description suitable for display to the user or
	* null.
	* @return this
	*/
	public Builder setDescription(@Nullable CharSequence description) {
	mDescription = description;
	return this;
	}

	/**
	* Sets the icon.
	*
	* @param icon A {@link Bitmap} icon suitable for display to the user or
	* null.
	* @return this
	*/
	public Builder setIconBitmap(@Nullable Bitmap icon) {
	mIcon = icon;
	return this;
	}

	/**
	* Sets the icon uri.
	*
	* @param iconUri A {@link Uri} for an icon suitable for display to the
	* user or null.
	* @return this
	*/
	public Builder setIconUri(@Nullable Uri iconUri) {
	mIconUri = iconUri;
	return this;
	}

	/**
	* Sets a bundle of extras.
	*
	* @param extras The extras to include with this description or null.
	* @return this
	*/
	public Builder setExtras(@Nullable Bundle extras) {
	mExtras = extras;
	return this;
	}

	/**
	* Sets the media uri.
	*
	* @param mediaUri The content's {@link Uri} for the item or null.
	* @return this
	*/
	public Builder setMediaUri(@Nullable Uri mediaUri) {
	mMediaUri = mediaUri;
	return this;
	}

	/**
	* Creates a {@link MediaDescriptionCompat} instance with the specified
	* fields.
	*
	* @return A MediaDescriptionCompat instance.
	*/
	public MediaDescriptionCompat build() {
	return new MediaDescriptionCompat(mMediaId, mTitle, mSubtitle, mDescription, mIcon,
	mIconUri, mExtras, mMediaUri);
	}
	}
	}