105 lines
3.0 KiB
Java
105 lines
3.0 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package com.android.internal.widget;
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import android.annotation.Nullable;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.widget.FrameLayout;
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import android.widget.RemoteViews;
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import java.util.ArrayList;
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/**
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* The Layout class which handles template details for the Notification.MediaStyle
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*
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* @hide
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*/
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@RemoteViews.RemoteView
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public class MediaNotificationView extends FrameLayout {
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private ArrayList<VisibilityChangeListener> mListeners;
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public MediaNotificationView(Context context) {
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this(context, null);
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}
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public MediaNotificationView(Context context, @Nullable AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public MediaNotificationView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public MediaNotificationView(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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}
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@Override
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public void onVisibilityAggregated(boolean isVisible) {
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super.onVisibilityAggregated(isVisible);
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if (mListeners != null) {
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for (int i = 0; i < mListeners.size(); i++) {
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mListeners.get(i).onAggregatedVisibilityChanged(isVisible);
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}
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}
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}
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/**
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* Add a listener to receive updates on the visibility of this view
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*
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* @param listener The listener to add.
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*/
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public void addVisibilityListener(VisibilityChangeListener listener) {
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if (mListeners == null) {
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mListeners = new ArrayList<>();
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}
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if (!mListeners.contains(listener)) {
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mListeners.add(listener);
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}
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}
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/**
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* Remove the specified listener
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*
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* @param listener The listener to remove.
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*/
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public void removeVisibilityListener(VisibilityChangeListener listener) {
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if (mListeners != null) {
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mListeners.remove(listener);
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}
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}
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/**
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* Interface for receiving updates when the view's visibility changes
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*/
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public interface VisibilityChangeListener {
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/**
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* Method called when the visibility of this view has changed
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* @param isVisible true if the view is now visible
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*/
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void onAggregatedVisibilityChanged(boolean isVisible);
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}
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}
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