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/
MediaBrowserCompatApi21.java
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/
MediaBrowserCompatApi21.java
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/*
* Copyright 2018 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.content.ComponentName;
import android.content.Context;
import android.media.browse.MediaBrowser;
import android.os.Bundle;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import java.util.List;
@RequiresApi(21)
class MediaBrowserCompatApi21 {
static final String NULL_MEDIA_ITEM_ID =
"android.support.v4.media.MediaBrowserCompat.NULL_MEDIA_ITEM";
public static Object createConnectionCallback(ConnectionCallback callback) {
return new ConnectionCallbackProxy<>(callback);
}
public static Object createBrowser(Context context, ComponentName serviceComponent,
Object callback, Bundle rootHints) {
return new MediaBrowser(context, serviceComponent,
(MediaBrowser.ConnectionCallback) callback, rootHints);
}
public static void connect(Object browserObj) {
((MediaBrowser)browserObj).connect();
}
public static void disconnect(Object browserObj) {
((MediaBrowser)browserObj).disconnect();
}
public static boolean isConnected(Object browserObj) {
return ((MediaBrowser)browserObj).isConnected();
}
public static ComponentName getServiceComponent(Object browserObj) {
return ((MediaBrowser)browserObj).getServiceComponent();
}
public static String getRoot(Object browserObj) {
return ((MediaBrowser)browserObj).getRoot();
}
public static Bundle getExtras(Object browserObj) {
return ((MediaBrowser)browserObj).getExtras();
}
public static Object getSessionToken(Object browserObj) {
return ((MediaBrowser)browserObj).getSessionToken();
}
public static Object createSubscriptionCallback(SubscriptionCallback callback) {
return new SubscriptionCallbackProxy<>(callback);
}
public static void subscribe(
Object browserObj, String parentId, Object subscriptionCallbackObj) {
((MediaBrowser)browserObj).subscribe(parentId,
(MediaBrowser.SubscriptionCallback) subscriptionCallbackObj);
}
public static void unsubscribe(Object browserObj, String parentId) {
((MediaBrowser)browserObj).unsubscribe(parentId);
}
interface ConnectionCallback {
void onConnected();
void onConnectionSuspended();
void onConnectionFailed();
}
static class ConnectionCallbackProxy<T extends ConnectionCallback>
extends MediaBrowser.ConnectionCallback {
protected final T mConnectionCallback;
public ConnectionCallbackProxy(T connectionCallback) {
mConnectionCallback = connectionCallback;
}
@Override
public void onConnected() {
mConnectionCallback.onConnected();
}
@Override
public void onConnectionSuspended() {
mConnectionCallback.onConnectionSuspended();
}
@Override
public void onConnectionFailed() {
mConnectionCallback.onConnectionFailed();
}
}
interface SubscriptionCallback {
void onChildrenLoaded(@NonNull String parentId, List<?> children);
void onError(@NonNull String parentId);
}
static class SubscriptionCallbackProxy<T extends SubscriptionCallback>
extends MediaBrowser.SubscriptionCallback {
protected final T mSubscriptionCallback;
public SubscriptionCallbackProxy(T callback) {
mSubscriptionCallback = callback;
}
@Override
public void onChildrenLoaded(@NonNull String parentId,
List<MediaBrowser.MediaItem> children) {
mSubscriptionCallback.onChildrenLoaded(parentId, children);
}
@Override
public void onError(@NonNull String parentId) {
mSubscriptionCallback.onError(parentId);
}
}
static class MediaItem {
public static int getFlags(Object itemObj) {
return ((MediaBrowser.MediaItem) itemObj).getFlags();
}
public static Object getDescription(Object itemObj) {
return ((MediaBrowser.MediaItem) itemObj).getDescription();
}
private MediaItem() {
}
}
private MediaBrowserCompatApi21() {
}
}