1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.example.android.mediabrowserservice; 17 18 import android.app.Activity; 19 import android.media.session.MediaSession; 20 import android.view.LayoutInflater; 21 import android.view.View; 22 import android.view.ViewGroup; 23 import android.widget.ArrayAdapter; 24 import android.widget.ImageView; 25 import android.widget.TextView; 26 27 import java.util.ArrayList; 28 29 /** 30 * A list adapter for items in a queue 31 */ 32 public class QueueAdapter extends ArrayAdapter<MediaSession.QueueItem> { 33 34 // The currently selected/active queue item Id. 35 private long mActiveQueueItemId = MediaSession.QueueItem.UNKNOWN_ID; 36 QueueAdapter(Activity context)37 public QueueAdapter(Activity context) { 38 super(context, R.layout.media_list_item, new ArrayList<MediaSession.QueueItem>()); 39 } 40 setActiveQueueItemId(long id)41 public void setActiveQueueItemId(long id) { 42 this.mActiveQueueItemId = id; 43 } 44 45 private static class ViewHolder { 46 ImageView mImageView; 47 TextView mTitleView; 48 TextView mDescriptionView; 49 } 50 getView(int position, View convertView, ViewGroup parent)51 public View getView(int position, View convertView, ViewGroup parent) { 52 ViewHolder holder; 53 54 if (convertView == null) { 55 convertView = LayoutInflater.from(getContext()) 56 .inflate(R.layout.media_list_item, parent, false); 57 holder = new ViewHolder(); 58 holder.mImageView = (ImageView) convertView.findViewById(R.id.play_eq); 59 holder.mTitleView = (TextView) convertView.findViewById(R.id.title); 60 holder.mDescriptionView = (TextView) convertView.findViewById(R.id.description); 61 convertView.setTag(holder); 62 } else { 63 holder = (ViewHolder) convertView.getTag(); 64 } 65 66 MediaSession.QueueItem item = getItem(position); 67 holder.mTitleView.setText(item.getDescription().getTitle()); 68 if (item.getDescription().getDescription() != null) { 69 holder.mDescriptionView.setText(item.getDescription().getDescription()); 70 } 71 72 // If the itemId matches the active Id then use a different icon 73 if (mActiveQueueItemId == item.getQueueId()) { 74 holder.mImageView.setImageDrawable( 75 getContext().getDrawable(R.drawable.ic_equalizer_white_24dp)); 76 } else { 77 holder.mImageView.setImageDrawable( 78 getContext().getDrawable(R.drawable.ic_play_arrow_white_24dp)); 79 } 80 return convertView; 81 } 82 } 83