| /* |
| * Copyright (C) 2016 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 com.android.internal.widget; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.widget.FrameLayout; |
| import android.widget.RemoteViews; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * The Layout class which handles template details for the Notification.MediaStyle |
| * |
| * @hide |
| */ |
| @RemoteViews.RemoteView |
| public class MediaNotificationView extends FrameLayout { |
| |
| private ArrayList<VisibilityChangeListener> mListeners; |
| |
| public MediaNotificationView(Context context) { |
| this(context, null); |
| } |
| |
| public MediaNotificationView(Context context, @Nullable AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| public MediaNotificationView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| public MediaNotificationView(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onFinishInflate() { |
| super.onFinishInflate(); |
| } |
| |
| @Override |
| public void onVisibilityAggregated(boolean isVisible) { |
| super.onVisibilityAggregated(isVisible); |
| if (mListeners != null) { |
| for (int i = 0; i < mListeners.size(); i++) { |
| mListeners.get(i).onAggregatedVisibilityChanged(isVisible); |
| } |
| } |
| } |
| |
| /** |
| * Add a listener to receive updates on the visibility of this view |
| * |
| * @param listener The listener to add. |
| */ |
| public void addVisibilityListener(VisibilityChangeListener listener) { |
| if (mListeners == null) { |
| mListeners = new ArrayList<>(); |
| } |
| if (!mListeners.contains(listener)) { |
| mListeners.add(listener); |
| } |
| } |
| |
| /** |
| * Remove the specified listener |
| * |
| * @param listener The listener to remove. |
| */ |
| public void removeVisibilityListener(VisibilityChangeListener listener) { |
| if (mListeners != null) { |
| mListeners.remove(listener); |
| } |
| } |
| |
| /** |
| * Interface for receiving updates when the view's visibility changes |
| */ |
| public interface VisibilityChangeListener { |
| /** |
| * Method called when the visibility of this view has changed |
| * @param isVisible true if the view is now visible |
| */ |
| void onAggregatedVisibilityChanged(boolean isVisible); |
| } |
| } |