1 /* 2 * Copyright (C) 2015 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 17 package com.example.android.supportv4.media; 18 19 import com.example.android.supportv4.R; 20 import android.app.Activity; 21 import android.support.v4.media.session.MediaSessionCompat; 22 import android.view.LayoutInflater; 23 import android.view.View; 24 import android.view.ViewGroup; 25 import android.widget.ArrayAdapter; 26 import android.widget.ImageView; 27 import android.widget.TextView; 28 29 import java.util.ArrayList; 30 31 /** 32 * A list adapter for items in a queue 33 */ 34 public class QueueAdapter extends ArrayAdapter<MediaSessionCompat.QueueItem> { 35 36 // The currently selected/active queue item Id. 37 private long mActiveQueueItemId = MediaSessionCompat.QueueItem.UNKNOWN_ID; 38 39 public QueueAdapter(Activity context) { 40 super(context, R.layout.media_list_item, new ArrayList<MediaSessionCompat.QueueItem>()); 41 } 42 43 public void setActiveQueueItemId(long id) { 44 this.mActiveQueueItemId = id; 45 } 46 47 private static class ViewHolder { 48 ImageView mImageView; 49 TextView mTitleView; 50 TextView mDescriptionView; 51 } 52 53 public View getView(int position, View convertView, ViewGroup parent) { 54 ViewHolder holder; 55 56 if (convertView == null) { 57 convertView = LayoutInflater.from(getContext()) 58 .inflate(R.layout.media_list_item, parent, false); 59 holder = new ViewHolder(); 60 holder.mImageView = (ImageView) convertView.findViewById(R.id.play_eq); 61 holder.mTitleView = (TextView) convertView.findViewById(R.id.title); 62 holder.mDescriptionView = (TextView) convertView.findViewById(R.id.description); 63 convertView.setTag(holder); 64 } else { 65 holder = (ViewHolder) convertView.getTag(); 66 } 67 68 MediaSessionCompat.QueueItem item = getItem(position); 69 holder.mTitleView.setText(item.getDescription().getTitle()); 70 if (item.getDescription().getDescription() != null) { 71 holder.mDescriptionView.setText(item.getDescription().getDescription()); 72 } 73 74 // If the itemId matches the active Id then use a different icon 75 if (mActiveQueueItemId == item.getQueueId()) { 76 holder.mImageView.setImageDrawable( 77 getContext().getResources().getDrawable(R.drawable.ic_equalizer_white_24dp)); 78 } else { 79 holder.mImageView.setImageDrawable( 80 getContext().getResources().getDrawable(R.drawable.ic_play_arrow_white_24dp)); 81 } 82 return convertView; 83 } 84 } 85