Android开发本地及网络Mp3音乐播放器(十)最近播放界面与数据保存更新
实现功能：实现MyLoveMusicActivity（音乐收藏界面）
实现MyRecordMusicActivity（最近播放界面）
实现MyMusicListFragment（本地音乐界面）ItemClick事件发生后，切换到PlayActivity（独立音乐播放界面）只播放 本地音乐。
实现MyLoveMusicActivity（音乐收藏界面）ItemClick事件发生后，切换到PlayActivity（独立音乐播放界面）只播放 音乐收藏。
实现MyRecordMusicActivity（最近播放界面）ItemClick事件发生后，切换到PlayActivity（独立音乐播放界面）只播放 最近播放。
通过字段解决数据库，音乐收藏、最近播放，共用一个数据库的问题。
截止到目前的源码下载：
**** Hidden Message *****
xUtils简介：
http://blog.csdn.net/iwanghang/article/details/51268639
xUtils AndroidStudio安装：
http://blog.csdn.net/iwanghang/article/details/51268890
实现效果如图：
http://img.blog.csdn.net/20160428225516040?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Centerhttp://img.blog.csdn.net/20160428225532597?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Centerhttp://img.blog.csdn.net/20160428225547775?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Centerhttp://img.blog.csdn.net/20160428225601863?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Centerhttp://img.blog.csdn.net/20160428225615801?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Centerhttp://img.blog.csdn.net/20160428225627754?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
实现代码如下：
MyRecordMusicActivity如下：
package com.iwanghang.drmplayer;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.TextView;
import com.iwanghang.drmplayer.adapter.MyMusicListAdapter;
import com.iwanghang.drmplayer.utils.Constant;
import com.iwanghang.drmplayer.vo.Mp3Info;
import com.lidroid.xutils.db.sqlite.Selector;
import com.lidroid.xutils.exception.DbException;
import java.util.ArrayList;
import java.util.List;
/**
* Created by iwanghang on 16/4/27.
* 最近播放的音乐列表界面
*/
public class MyRecordMusicActivity extends BaseActivity implements OnItemClickListener {
private ListView listView_record;
private TextView textView2_no_data;
private DRMPlayerApp app;
private ArrayList<Mp3Info> recordMp3Infos;
private MyMusicListAdapter adapter;
//private boolean isChange = false;//表示当前播放列表是否为收藏列表
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
app = (DRMPlayerApp) getApplication();
setContentView(R.layout.activity_my_record_music_list);//绑定布局
listView_record = (ListView) findViewById(R.id.listView_record);//实例化布局
textView2_no_data = (TextView) findViewById(R.id.textView2_no_data);
listView_record.setOnItemClickListener(this);
initData();//初始化数据
//listView_love.setAdapter();
}
private void initData() {//初始化数据
try {
List<Mp3Info> list = app.dbUtils.findAll(Selector.from(Mp3Info.class).where("playTime","!=","0").orderBy("playTime",true).limit(Constant.MY_RECORD_NUM));//查找5首最近播放的音乐
if (list==null || list.size()==0){
textView2_no_data.setVisibility(View.VISIBLE);//温馨提示.显示
listView_record.setVisibility(View.GONE);//最近播放列表.隐藏
}else {
textView2_no_data.setVisibility(View.GONE);//温馨提示.隐藏
listView_record.setVisibility(View.VISIBLE);//最近播放列表.显示
recordMp3Infos = (ArrayList<Mp3Info>) list;
adapter = new MyMusicListAdapter(this,recordMp3Infos);
listView_record.setAdapter(adapter);
}
} catch (DbException e) {
e.printStackTrace();
}
}
//把播放服务的绑定和解绑放在onResume,onPause里,好处是,每次回到当前Activity就获取一次播放状态
@Override
protected void onResume() {
super.onResume();
bindPlayService();//绑定服务
}
@Override
protected void onPause() {
super.onPause();
unbindPlayService();//解绑服务
}
@Override
protected void onDestroy() {
super.onDestroy();
unbindPlayService();//解绑服务
}
@Override
public void publish(int progress) {
}
@Override
public void change(int progress) {
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//如果当前播放列表不是收藏列表
if (playService.getChangePlayList() != PlayService.RECORD_MUSIC_LIST){
playService.setMp3Infos(recordMp3Infos);//播放列表切换为最近播放
playService.setChangePlayList(PlayService.RECORD_MUSIC_LIST);
System.out.println("播放列表切换为最近播放");
}
playService.play(position);
}
}activity_my_record_music_list.xml如下：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="记录您最近听过的5首歌曲"
android:textColor="@android:color/white"
android:background="#686868"
android:textSize="15sp"
android:id="@+id/textView2_record"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="暂无最近播放音乐"
android:textColor="@android:color/holo_blue_light"
android:layout_margin="5dp"
android:textSize="40sp"
android:id="@+id/textView2_no_data"
android:layout_below="@+id/textView2_record"
android:layout_centerHorizontal="true" />
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/listView_record"
android:layout_below="@+id/textView2_record"
android:layout_centerHorizontal="true" />
</RelativeLayout>PlayService如下：
package com.iwanghang.drmplayer;
import android.app.Service;
import android.content.Intent;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.net.Uri;
import android.os.Binder;
import android.os.IBinder;
import com.iwanghang.drmplayer.utils.MediaUtils;
import com.iwanghang.drmplayer.vo.Mp3Info;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/**
* 音乐播放的服务组件
* 实现功能:
* 播放
* 暂停
* 下一首
* 上一首
* 获取当前歌曲的播放进度
* <p/>
* 需要在AndroidManifest.xml添加以下代码:
* <service
* android:name=".PlayService"
* android:enabled="true"
* android:exported="true">
* </service>
* <p/>
* 实现功能(播放模式play_mode):
* 顺序播放
* 随机播放
* 单曲循环
*/
public class PlayService extends Service implements OnCompletionListener, OnErrorListener {
private MediaPlayer mPlayer;
private int currentPosition;//当前正在播放的歌曲的位置
ArrayList<Mp3Info> mp3Infos;
private MusicUpdatrListener musicUpdatrListener;
//创建一个单实力的线程,用于更新音乐信息
private ExecutorService es = Executors.newSingleThreadExecutor();
//播放模式
public static final int ORDER_PLAY = 1;//顺序播放
public static final int RANDOM_PLAY = 2;//随机播放
public static final int SINGLE_PLAY = 3;//单曲循环
private int play_mode = ORDER_PLAY;//播放模式,默认为顺序播放
/**
* @param play_mode ORDER_PLAY = 1;//顺序播放
* RANDOM_PLAY = 2;//随机播放
* SINGLE_PLAY = 3;//单曲循环
*/
//set方法
public void setPlay_mode(int play_mode) {
this.play_mode = play_mode;
}
//get方法
public int getPlay_mode() {
return play_mode;
}
private boolean isPause = false;//歌曲播放中的暂停状态
public boolean isPause() {
return isPause;
}
//切换播放列表,默认MY_MUSIC_LIST
public static final int MY_MUSIC_LIST = 1;//本地音乐
public static final int LOVE_MUSIC_LIST = 2;//收藏音乐
public static final int RECORD_MUSIC_LIST = 3;//最近播放
private int changePlayList = MY_MUSIC_LIST;
public int getChangePlayList() {//get方法
return changePlayList;
}
public void setChangePlayList(int changePlayList) {//set方法
this.changePlayList = changePlayList;
}
public PlayService() {
}
//ArrayList<Mp3Info> mp3Infos; set方法
public void setMp3Infos(ArrayList<Mp3Info> mp3Infos) {
this.mp3Infos = mp3Infos;
}
public int getCurrentPosition() {
return currentPosition;
}
private Random random = new Random();//创建随机对象
//MediaPlayer.Completion 播放完成 实现播放下一首功能
//播放完成以后,判断播放模式(曲目循环方式)
//为了实现循环后,可以显示音乐信息,需要在PlayAcivity的change里添加对应代码
@Override
public void onCompletion(MediaPlayer mp) {
switch (play_mode) {
case ORDER_PLAY://顺序播放
next();//下一首
break;
case RANDOM_PLAY://随机播放
//currentPosition = random.nextInt(mp3Infos.size());//随机下标为mp3Infos.size()
//play(currentPosition);
play(random.nextInt(mp3Infos.size()));
break;
case SINGLE_PLAY://单曲循环
play(currentPosition);
break;
default:
break;
}
}
//MediaPlayer.Error 播放错误 处理实现播放下一首功能出现的错误
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
mp.reset();//重启
return false;
}
//内部类PlayBinder实现Binder,得到当前PlayService对象
class PlayBinder extends Binder {
public PlayService getPlayService() {
System.out.println("PlayService #1 " + PlayService.this);
return PlayService.this;
}
}
@Override
public IBinder onBind(Intent intent) {
return new PlayBinder();//通过PlayBinder拿到PlayService,给Activity调用
}
public ArrayList<Mp3Info> getMp3Infos() {
return mp3Infos;
}
@Override
public void onCreate() {
super.onCreate();
//恢复状态值
DRMPlayerApp app = (DRMPlayerApp) getApplication();
currentPosition = app.sp.getInt("currentPosition", 0);
play_mode = app.sp.getInt("play_mode", PlayService.ORDER_PLAY);
//创建DRMPlayerApp继承Application,同时需要在把AndroidManiFest中的public换成DRMPlayerApp
//在DRMPlayerApp的onCreate中 实例化 SharedPreferences
//在MainActivity的onDestroy中 保存状态值
//在PlayService的onCreate中 恢复状态值
mPlayer = new MediaPlayer();
mPlayer.setOnCompletionListener(this);//注册播放完成事件
mPlayer.setOnErrorListener(this);//注册播放错误事件
mp3Infos = MediaUtils.getMp3Infos(this);//获取Mp3列表
es.execute(updateSteatusRunnable);//更新进度值
}
@Override
public void onDestroy() {
super.onDestroy();
//回收线程
if (es != null && !es.isShutdown()) {//当进度值等于空,并且,进度值没有关闭
es.shutdown();
es = null;
}
}
//利用Runnable来实现多线程
/**
* Runnable
* Java中实现多线程有两种途径:继承Thread类或者实现Runnable接口.
* Runnable接口非常简单,就定义了一个方法run(),继承Runnable并实现这个
* 方法就可以实现多线程了,但是这个run()方法不能自己调用,必须由系统来调用,否则就和别的方法没有什么区别了.
* 好处:数据共享
*/
Runnable updateSteatusRunnable = new Runnable() {//更新状态
@Override
public void run() {
//不断更新进度值
while (true) {
//音乐更新监听不为空,并且,媒体播放不为空,并且媒体播放为播放状态
if (musicUpdatrListener != null && mPlayer != null && mPlayer.isPlaying()) {
musicUpdatrListener.onPublish(getCurrentProgress());//获取当前的进度值
}
try {
Thread.sleep(500);//500毫秒更新一次
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
//播放
public void play(int position) {
Mp3Info mp3Info;
if (position >= 0 && position < mp3Infos.size()) {
} else {
position = 0;
}
mp3Info = mp3Infos.get(position);//获取mp3Info对象
//进行播放,播放前判断
try {
mPlayer.reset();//重启
mPlayer.setDataSource(this, Uri.parse(mp3Info.getUrl()));//资源解析,Mp3地址
mPlayer.prepare();//准备
mPlayer.start();//开始(播放)
currentPosition = position;//保存当前位置到currentPosition,比如第一首,currentPosition = 1
} catch (IOException e) {
e.printStackTrace();
}
if (musicUpdatrListener != null) {
musicUpdatrListener.onChange(currentPosition);//更新当前位置
}
}
//暂停
public void pause() {
if (mPlayer.isPlaying()) {
mPlayer.pause();
isPause = true;
}
}
//下一首
public void next() {
if (currentPosition >= mp3Infos.size() - 1) {//如果超出最大值,(因为第一首是0),说明已经是最后一首
currentPosition = 0;//回到第一首
} else {
currentPosition++;//下一首
}
play(currentPosition);
}
//上一首 previous
public void prev() {
if (currentPosition - 1 < 0) {//如果上一首小于0,说明已经是第一首
currentPosition = mp3Infos.size() - 1;//回到最后一首
} else {
currentPosition--;//上一首
}
play(currentPosition);
}
//默认开始播放的方法
public void start() {
if (mPlayer != null && !mPlayer.isPlaying()) {//判断当前歌曲不等于空,并且没有在播放的状态
mPlayer.start();
}
}
//获取当前是否为播放状态,提供给MyMusicListFragment的播放暂停按钮点击事件判断状态时调用
public boolean isPlaying() {
if (mPlayer != null) {
return mPlayer.isPlaying();
}
return false;
}
//获取当前的进度值
public int getCurrentProgress() {
if (mPlayer != null && mPlayer.isPlaying()) {//mPlayer不为空,并且,为播放状态
return mPlayer.getCurrentPosition();
}
return 0;
}
//getDuration 获取文件的持续时间
public int getDuration() {
return mPlayer.getDuration();
}
//seekTo 寻找指定的时间位置 (跳到某个时间点进行播放)
public void seekTo(int msec) {
mPlayer.seekTo(msec);
}
//更新状态的接口(PlayService的内部接口),并在BaseActivity中实现
public interface MusicUpdatrListener {//音乐更新监听器
public void onPublish(int progress);//发表进度事件(更新进度条)
public void onChange(int position); //更新歌曲位置.按钮的状态等信息
//声明MusicUpdatrListener后,添加set方法
}
//set方法
public void setMusicUpdatrListener(MusicUpdatrListener musicUpdatrListener) {
this.musicUpdatrListener = musicUpdatrListener;
}
}
PlayActivity如下：
package com.iwanghang.drmplayer;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import android.widget.Toast;
import com.iwanghang.drmplayer.utils.ImageUtils;
import com.iwanghang.drmplayer.utils.MediaUtils;
import com.iwanghang.drmplayer.vo.Mp3Info;
import com.lidroid.xutils.db.sqlite.Selector;
import com.lidroid.xutils.exception.DbException;
import java.util.ArrayList;
import static com.iwanghang.drmplayer.PlayService.ORDER_PLAY;
import static com.iwanghang.drmplayer.PlayService.RANDOM_PLAY;
import static com.iwanghang.drmplayer.PlayService.SINGLE_PLAY;
/**
* PlayActivity 点击MyMusicListFragment(本地音乐)底部UI中的专辑封面图片打开的Activity
*/
public class PlayActivity extends BaseActivity implements OnClickListener, OnSeekBarChangeListener {
private TextView textView1_title;//歌名
private ImageView imageView1_ablum;//专辑封面图片
private SeekBar seekBar1;//进度条
private TextView textView1_start_time, textView1_end_time;//开始时间,结束时间
private ImageView imageView1_play_mode;//菜单
private ImageView imageView3_previous, imageView2_play_pause, imageView1_next;//上一首,播放暂停,下一首
private ImageView imageView1_ablum_reflection;//专辑封面图片倒影
private ImageView imageView1_favorite;//收藏按钮
//private ArrayList<Mp3Info> mp3Infos;
//private int position;//当前播放的位置
private boolean isPause = false;//当前播放的是否为暂停状态
private static final int UPDATE_TIME = 0x1;//更新播放事件的标记
private DRMPlayerApp app;//取出全局对象 方便调用
// private ViewPager viewPager;
// private MyPagerAdapter adapter;
// private MyMusicListFragment myMusicListFragment;
// private NetMusicListFragment netMusicListFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_music_play);
//取出全局对象 方便调用
app = (DRMPlayerApp) getApplication();
//初始化界面信息
textView1_title = (TextView) findViewById(R.id.textView1_title);//歌名
imageView1_ablum = (ImageView) findViewById(R.id.imageView1_ablum);//专辑封面图片
seekBar1 = (SeekBar) findViewById(R.id.seekBar1);//进度条
textView1_start_time = (TextView) findViewById(R.id.textView1_start_time);//开始时间
textView1_end_time = (TextView) findViewById(R.id.textView1_end_time);//结束时间
imageView1_play_mode = (ImageView) findViewById(R.id.imageView1_play_mode);//菜单
imageView3_previous = (ImageView) findViewById(R.id.imageView3_previous);//上一首
imageView2_play_pause = (ImageView) findViewById(R.id.imageView2_play_pause);//播放暂停
imageView1_next = (ImageView) findViewById(R.id.imageView1_next);//下一首
imageView1_ablum_reflection = (ImageView) findViewById(R.id.imageView1_ablum_reflection);//专辑封面图片倒影
imageView1_favorite = (ImageView) findViewById(R.id.imageView1_favorite);//收藏按钮
//注册按钮点击监听事件
imageView1_play_mode.setOnClickListener(this);
imageView2_play_pause.setOnClickListener(this);
imageView3_previous.setOnClickListener(this);
imageView1_next.setOnClickListener(this);
seekBar1.setOnSeekBarChangeListener(this);
imageView1_favorite.setOnClickListener(this);
//mp3Infos = MediaUtils.getMp3Infos(this);
//bindPlayService();//绑定服务,异步过程,绑定后需要取得相应的值,来更新界面
myHandler = new MyHandler(this);
//以下直接调用change()是不行的,因为异步问题,会发生NullPointerException空指针异常
//从MyMusicListFragment的专辑封面图片点击时间传过来的position(当前播放的位置)
//position = getIntent().getIntExtra("position",0);
//change(position);
//通过在BaseActivity中绑定Service,添加如下代码实现change()
//musicUpdatrListener.onChange(playService.getCurrentProgeress());
//从MyMusicListFragment的专辑封面图片点击时间传过来的isPause(当前播放的是否为暂停状态)
//isPause = getIntent().getBooleanExtra("isPause",false);
}
// private void initViewPager(){//专辑封面图片Pager与歌词Pager
// View album_image_layout = getLayoutInflater().inflate(R.layout.album_image_layout,null);
// //初始化界面信息
// textView1_title = (TextView) findViewById(R.id.textView1_title);//歌名
// imageView1_ablum = (ImageView) findViewById(R.id.imageView1_ablum);//专辑封面图片
// views.add(album_image_layout);//添加专辑封面图片Pager
// views.add(getLayoutInflater().inflate(R.layout.lrc_layout));//添加歌词Pager
// viewPager.setAdapter(new MyPagerAdapter());
// }
//把播放服务的绑定和解绑放在onResume,onPause里,好处是,每次回到当前Activity就获取一次播放状态
@Override
protected void onResume() {
super.onResume();
bindPlayService();//绑定服务
}
@Override
protected void onPause() {
super.onPause();
unbindPlayService();//解绑服务
}
@Override
protected void onDestroy() {
super.onDestroy();
unbindPlayService();//解绑服务
}
//Handler用于更新已经播放时间
private static MyHandler myHandler;
//进度条改变 (fromUser 是否来自用户的改变 , 而不是程序自身控制的改变)
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser) {
//playService.pause();//暂停
playService.seekTo(progress);//寻找指定的时间位置 (跳到某个时间点进行播放)
//playService.start();//播放
}
}
//进度条开始触摸
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
}
//进度条停止触摸
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
}
static class MyHandler extends Handler {
private PlayActivity playActivity;
public MyHandler(PlayActivity playActivity) {
this.playActivity = playActivity;
}
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
if (playActivity != null) {
switch (msg.what) {
case UPDATE_TIME://更新时间(已经播放时间)
playActivity.textView1_start_time.setText(MediaUtils.formatTime(msg.arg1));
break;
}
}
}
}
@Override
public void publish(int progress) {
//以下是是直接调用线程,但是不能这样做,会报错,线程异常
//textView1_start_time.setText(MediaUtils.formatTime(progress));
//所以,我们需要使用Handler
Message msg = myHandler.obtainMessage(UPDATE_TIME);//用于更新已经播放时间
msg.arg1 = progress;//用于更新已经播放时间
myHandler.sendMessage(msg);//用于更新已经播放时间
seekBar1.setProgress(progress);
}
@Override
public void change(int position) {//初始化,独立播放界面的歌曲切换后的初始化界面上的歌曲信息
//if (this.playService.isPlaying()) {//获取是否为播放状态
System.out.println("PlayActivity #100 position = " + position);
Mp3Info mp3Info = playService.mp3Infos.get(position);
textView1_title.setText(mp3Info.getTitle());//设置歌名
//获取专辑封面图片
Bitmap albumBitmap = MediaUtils.getArtwork(this, mp3Info.getId(), mp3Info.getAlbumId(), true, false);
//改变播放界面专辑封面图片
imageView1_ablum.setImageBitmap(albumBitmap);
textView1_end_time.setText(MediaUtils.formatTime(mp3Info.getDuration()));//设置结束时间
imageView2_play_pause.setImageResource(R.mipmap.app_music_pause);//设置暂停图片
seekBar1.setProgress(0);//设置当前进度为0
seekBar1.setMax((int) mp3Info.getDuration());//设置进度条最大值为MP3总时间
if (playService.isPlaying()) {
imageView2_play_pause.setImageResource(R.mipmap.app_music_pause);
} else {
imageView2_play_pause.setImageResource(R.mipmap.app_music_play);
}
if (imageView1_ablum != null) {
imageView1_ablum_reflection.setImageBitmap(ImageUtils.createReflectionBitmapForSingle(albumBitmap));//显示倒影
}
switch (playService.getPlay_mode()) {
case ORDER_PLAY://顺序播放
imageView1_play_mode.setImageResource(R.mipmap.app_mode_order);
//imageView2_play_pause.setTag(ORDER_PLAY);
break;
case PlayService.RANDOM_PLAY://随机播放
imageView1_play_mode.setImageResource(R.mipmap.app_mode_random);
//imageView2_play_pause.setTag(RANDOM_PLAY);
break;
case PlayService.SINGLE_PLAY://单曲循环
imageView1_play_mode.setImageResource(R.mipmap.app_mode_single);
//imageView2_play_pause.setTag(SINGLE_PLAY);
break;
default:
break;
}
//初始化收藏状态
try {
Mp3Info loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId", "=", mp3Info.getMp3InfoId()));//查出歌曲,SQL语句
System.out.println("初始化收藏状态" + loveMp3Info);
// if (loveMp3Info != null) {
// imageView1_favorite.setImageResource(R.mipmap.app_love_selected);
// } else {
// imageView1_favorite.setImageResource(R.mipmap.app_love_unselected);
// }
if (loveMp3Info != null) {
System.out.println("loveMp3Info.getIsLove() = " + loveMp3Info.getIsLove());
if (loveMp3Info.getIsLove() == 0) {//返回值不为null,且,isLove为0时,也显示为'未收藏'
imageView1_favorite.setImageResource(R.mipmap.app_love_unselected);
}else {//返回值为null,且,isLove为1时,一定显示为'已收藏'
imageView1_favorite.setImageResource(R.mipmap.app_love_selected);
}
} else {//返回值为null,一定显示为'未收藏'
imageView1_favorite.setImageResource(R.mipmap.app_love_unselected);
}
} catch (DbException e) {
e.printStackTrace();
}
}
//如果是本地音乐,id就是id;如果是收藏音乐,id则是mp3InfoId
//提供给 收藏按钮 点击事件时 调用.
private long getId(Mp3Info mp3Info){
//初始收藏状态
long id = 0;
switch (playService.getChangePlayList()){
case PlayService.MY_MUSIC_LIST:
System.out.println("当前为本地列表");
id = mp3Info.getId();
System.out.println("id =" + id);
break;
case PlayService.LOVE_MUSIC_LIST:
System.out.println("当前为收藏列表");
id = mp3Info.getMp3InfoId();
System.out.println("id =" + id);
break;
default:
break;
}
return id;
}
//点击事件
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.imageView2_play_pause: {//播放暂停按钮
if (playService.isPlaying()) {//如果是播放状态
imageView2_play_pause.setImageResource(R.mipmap.app_music_play);//设置播放图片
playService.pause();
} else {
if (playService.isPause()) {
imageView2_play_pause.setImageResource(R.mipmap.app_music_pause);//设置暂停图片
playService.start();//播放事件
} else {
//只有打开APP没有点击任何歌曲,同时,直接点击暂停播放按钮时.才会调用
//playService.play(0);
//只有打开APP没有点击任何歌曲,同时,直接点击暂停播放按钮时.才会调用
//默认播放的是,在PlayService的onCreate中 恢复状态值
playService.play(playService.getCurrentPosition());
}
}
break;
}
case R.id.imageView1_next: {//下一首按钮
playService.next();//下一首
break;
}
case R.id.imageView3_previous: {//上一首按钮
playService.prev();//上一首
break;
}
case R.id.imageView1_play_mode: {//循环模式按钮
//int mode = (int) imageView1_play_mode.getTag();
/**
* 以下Tosat内容,在strings.xml里,添加对应代码
*<string name="order_play">顺序播放</string>
*<string name="random_play">随机播放</string>
*<string name="single_play">单曲循环</string>
*/
switch (playService.getPlay_mode()) {
case ORDER_PLAY:
imageView1_play_mode.setImageResource(R.mipmap.app_mode_random);
//imageView1_play_mode.setTag(RANDOM_PLAY);
playService.setPlay_mode(RANDOM_PLAY);
//Toast.makeText(getApplicationContext(),"随机播放",Toast.LENGTH_SHORT).show();//这句也可以
//Toast.makeText(PlayActivity.this, "随机播放", Toast.LENGTH_SHORT).show();//这句也可以
Toast.makeText(PlayActivity.this, getString(R.string.random_play), Toast.LENGTH_SHORT).show();
break;
case RANDOM_PLAY:
imageView1_play_mode.setImageResource(R.mipmap.app_mode_single);
//imageView1_play_mode.setTag(SINGLE_PLAY);
playService.setPlay_mode(SINGLE_PLAY);
//Toast.makeText(getApplicationContext(),"单曲循环",Toast.LENGTH_SHORT).show();//这句也可以
//Toast.makeText(PlayActivity.this, "单曲循环", Toast.LENGTH_SHORT).show();//这句也可以
Toast.makeText(PlayActivity.this, getString(R.string.single_play), Toast.LENGTH_SHORT).show();
break;
case SINGLE_PLAY:
imageView1_play_mode.setImageResource(R.mipmap.app_mode_order);
//imageView1_play_mode.setTag(ORDER_PLAY);
playService.setPlay_mode(ORDER_PLAY);
//Toast.makeText(getApplicationContext(),"顺序播放",Toast.LENGTH_SHORT).show();//这句也可以
//Toast.makeText(PlayActivity.this, "顺序播放", Toast.LENGTH_SHORT).show();//这句也可以
Toast.makeText(PlayActivity.this, getString(R.string.order_play), Toast.LENGTH_SHORT).show();
break;
}
break;
}
case R.id.imageView1_favorite: {//收藏按钮//在vo.Mp3Info里private long mp3InfoId;//在收藏音乐时用于保存原始ID
Mp3Info mp3Info = playService.mp3Infos.get(playService.getCurrentPosition());//查出歌曲
System.out.println(mp3Info);
try {
Mp3Info loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId","=",getId(mp3Info)));//查出歌曲,SQL语句
System.out.println(loveMp3Info);
if (loveMp3Info==null){//返回值为null,则一定需要save
System.out.println("不在音乐收藏数据库中 保存音乐数据 原始数据: " + mp3Info);
mp3Info.setMp3InfoId(mp3Info.getId());
mp3Info.setIsLove(1);
System.out.println(mp3Info);
app.dbUtils.save(mp3Info);//在音乐收藏数据库 保存音乐
System.out.println("save");
imageView1_favorite.setImageResource(R.mipmap.app_love_selected);
//以下是:调试使用,保存以后再查一遍
loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId","=",getId(mp3Info)));//查出歌曲,SQL语句
System.out.println("调试使用,保存以后再查一遍 最新数据: " + loveMp3Info);
}else {//返回值不为null,则一定需要update
System.out.println("在音乐收藏数据库中 更新音乐数据 原始数据: " + loveMp3Info);
int isLove = loveMp3Info.getIsLove();
if (isLove==1){//返回值不为null,且,isLove为1时;设置isLove为0,同时显示为'未收藏'
loveMp3Info.setIsLove(0);
imageView1_favorite.setImageResource(R.mipmap.app_love_unselected);
}else {//返回值不为null,且,isLove为0时;设置isLove为1,同时显示为'已收藏'
loveMp3Info.setIsLove(1);
imageView1_favorite.setImageResource(R.mipmap.app_love_selected);
}
System.out.println("update");
app.dbUtils.update(loveMp3Info,"isLove");//更新loveMp3Info数据
//以下是:调试使用,更新以后再查一遍
loveMp3Info = app.dbUtils.findFirst(Selector.from(Mp3Info.class).where("mp3InfoId", "=", getId(mp3Info)));//查出歌曲,SQL语句
System.out.println("调试使用,更新以后再查一遍 最新数据: " + loveMp3Info);
}
} catch (DbException e) {
e.printStackTrace();
}
break;
}
default:
break;
}
}
}
MainActivity如下：
package com.iwanghang.drmplayer;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.BitmapFactory;
import android.graphics.BitmapFactory.Options;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.LayerDrawable;
import android.graphics.drawable.TransitionDrawable;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.TypedValue;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ListView;
import com.astuetz.PagerSlidingTabStrip;
import com.astuetz.viewpager.extensions.sample.QuickContactFragment;
import com.iwanghang.drmplayer.utils.MediaUtils;
import com.iwanghang.drmplayer.vo.Mp3Info;
import java.nio.charset.CoderMalfunctionError;
import java.util.ArrayList;
public class MainActivity extends BaseActivity {
// private final Handler handler = new Handler();
private PagerSlidingTabStrip tabs;
private ViewPager pager;
private MyPagerAdapter adapter;
public DRMPlayerApp app;//取出全局对象 方便调用
// private Drawable oldBackground = null;
// private int currentColor = 0xFFC74B46;
private MyMusicListFragment myMusicListFragment;
private NetMusicListFragment netMusicListFragment;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//取出全局对象 方便调用
app = (DRMPlayerApp) getApplication();
setContentView(R.layout.activity_main);
tabs = (PagerSlidingTabStrip) findViewById(R.id.tabs);
pager = (ViewPager) findViewById(R.id.pager);
adapter = new MyPagerAdapter(getSupportFragmentManager());
pager.setAdapter(adapter);
final int pageMargin = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources()
.getDisplayMetrics());
pager.setPageMargin(pageMargin);
tabs.setViewPager(pager);
//修改主界面颜色,稍后修复功能,暂时使用默认颜色
//changeColor(currentColor);
//绑定服务
//服务在加载SplashActivity(欢迎页面)的时候,已经启动
//bindPlayService();
//这里,我在MyMusicListFragment里面绑定,而没有在MainActivity里绑定
}
@Override
public void publish(int progress) {
//更新进度条
}
@Override
public void change(int position) {
//更新歌曲位置.按钮的状态等信息
/**
* 本地音乐的播放UI实际上在MyMusicListFragment中,所以要
* 先在MyMusicListFragmen中,写入public void changeUIStatus(int position){}
* 然后,传参过去
*/
if (pager.getCurrentItem()==0){//如果页面等于0,则说明选中的是第一个页面,我的音乐页面
myMusicListFragment.loadData();//初始化数据
myMusicListFragment.changeUIStatusOnPlay(position);
}else if (pager.getCurrentItem()==1){
}
}
// @Override
// public boolean onCreateOptionsMenu(Menu menu) {
// getMenuInflater().inflate(R.menu.main, menu);
// return true;
// }
//
// @Override
// public boolean onOptionsItemSelected(MenuItem item) {
//
// switch (item.getItemId()) {
//
// case R.id.action_contact:
// QuickContactFragment dialog = new QuickContactFragment();
// dialog.show(getSupportFragmentManager(), "QuickContactFragment");
// return true;
//
// }
//
// return super.onOptionsItemSelected(item);
// }
// private void changeColor(int newColor) {
//
// tabs.setIndicatorColor(newColor);
//
// // change ActionBar color just if an ActionBar is available
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
//
// Drawable colorDrawable = new ColorDrawable(newColor);
// Drawable bottomDrawable = getResources().getDrawable(R.drawable.actionbar_bottom);
// LayerDrawable ld = new LayerDrawable(new Drawable[] { colorDrawable, bottomDrawable });
//
// if (oldBackground == null) {
//
// if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
// ld.setCallback(drawableCallback);
// } else {
// getActionBar().setBackgroundDrawable(ld);
// }
//
// } else {
//
// TransitionDrawable td = new TransitionDrawable(new Drawable[] { oldBackground, ld });
//
// // workaround for broken ActionBarContainer drawable handling on
// // pre-API 17 builds
// // https://github.com/android/platform_frameworks_base/commit/a7cc06d82e45918c37429a59b14545c6a57db4e4
// if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
// td.setCallback(drawableCallback);
// } else {
// getActionBar().setBackgroundDrawable(td);
// }
//
// td.startTransition(200);
//
// }
//
// oldBackground = ld;
//
// // http://stackoverflow.com/questions/11002691/actionbar-setbackgrounddrawable-nulling-background-from-thread-handler
// getActionBar().setDisplayShowTitleEnabled(false);
// getActionBar().setDisplayShowTitleEnabled(true);
//
// }
//
// currentColor = newColor;
//
// }
// public void onColorClicked(View v) {
//
// int color = Color.parseColor(v.getTag().toString());
// changeColor(color);
//
// }
// @Override
// protected void onSaveInstanceState(Bundle outState) {
// super.onSaveInstanceState(outState);
// outState.putInt("currentColor", currentColor);
// }
// @Override
// protected void onRestoreInstanceState(Bundle savedInstanceState) {
// super.onRestoreInstanceState(savedInstanceState);
// currentColor = savedInstanceState.getInt("currentColor");
// changeColor(currentColor);
// }
// private Drawable.Callback drawableCallback = new Drawable.Callback() {
// @Override
// public void invalidateDrawable(Drawable who) {
// getActionBar().setBackgroundDrawable(who);
// }
//
// @Override
// public void scheduleDrawable(Drawable who, Runnable what, long when) {
// handler.postAtTime(what, when);
// }
//
// @Override
// public void unscheduleDrawable(Drawable who, Runnable what) {
// handler.removeCallbacks(what);
// }
// };
public class MyPagerAdapter extends FragmentPagerAdapter {
private final String[] TITLES = { "本地音乐", "网络音乐"};
public MyPagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public CharSequence getPageTitle(int position) {
return TITLES;
}
@Override
public int getCount() {
return TITLES.length;
}
@Override
public Fragment getItem(int position) {
//return SuperAwesomeCardFragment.newInstance(position);
if(position==0){
if(myMusicListFragment==null){
myMusicListFragment = MyMusicListFragment.newInstance();
}
return myMusicListFragment;
}else if (position == 1){
if(netMusicListFragment==null){
netMusicListFragment = NetMusicListFragment.newInstance();
}
return netMusicListFragment;
}
return null;
//return MyMusicListFragment.newInstance();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {//填充菜单
getMenuInflater().inflate(R.menu.main_menu,menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item){//菜单中事件
switch (item.getItemId()){
case R.id.ilove:
Intent intent = new Intent(this,MyLoveMusicActivity.class);
startActivity(intent);
System.out.println("我的收藏");
break;
case R.id.near_play:
Intent intent2 = new Intent(this,MyRecordMusicActivity.class);
startActivity(intent2);
System.out.println("最近播放");
break;
}
return true;
}
@Override
protected void onDestroy() {
super.onDestroy();
//保存当前播放的一些状态值
DRMPlayerApp app = (DRMPlayerApp) getApplication();
SharedPreferences.Editor editor = app.sp.edit();
//保存 当前正在播放的歌曲的位置
editor.putInt("currentPosition",playService.getCurrentPosition());
//保存 播放模式
editor.putInt("play_mode",playService.getPlay_mode());
//保存 提交
editor.commit();
//创建DRMPlayerApp继承Application,同时需要在把AndroidManiFest中的public换成DRMPlayerApp
//在DRMPlayerApp的onCreate中 实例化 SharedPreferences
//在MainActivity的onDestroy中 保存状态值
//在PlayService的onCreate中 恢复状态值
}
}
解决ActionBar左上角图片不显示问题：
在styles中修改
<item name="android:icon">@mipmap/app_icon</item>即可。
增加新主题：
<style name="AppTheme2" parent="AppBaseTheme">
<item name="android:windowBackground">@color/background_window</item>
<item name="android:actionBarStyle">@style/ActionBarStyle.BlueActionBarStyle</item>
</style>
<style name="ActionBarStyle.BlueActionBarStyle" parent="ActionBarStyle">
<item name="android:icon">@mipmap/app_icon</item>
<item name="android:background">#FF686868</item>
</style>
wwwwwwwwwwwwwwwwwwwwwwwwwwwwww 谢谢现在急需 学习学习 UI一一一一一一一一一一一一一一 学习学习
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