Android Notification 详解(二）－－设置闹铃时铃声从SD卡中获取

public class AlarmReceiver extends BroadcastReceiver {
String soundPath = Environment.getExternalStorageDirectory()+"/";

@Override
public void onReceive(Context context, Intent intent) {
Log.d("AlarmRecever","闹铃响了");
//=====================状态栏提示 start =================
//设置通知内容并开启
NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("用电脑的时间过长！")
.setContentText("用电脑时间有点长，眼睛需要好好休息一下。")
.setWhen(System.currentTimeMillis())
.build();

/*
* 添加声音可以使用默认声音，也可以自定义声音，也可以用系统声音

* 自定义声音从SD卡中获取，如果SD卡中没有音乐，则用默认声音
* */
List<String> list = getSDCardMusic(context);
if(list != null && list.size() != 0){
notification.sound = Uri.parse(list.get(0));
Log.d("AlarmReceiver","musicName="+list.get(0));
}else{
notification.defaults |= Notification.DEFAULT_SOUND;
}

//设置声音循环播放
notification.flags |= Notification.FLAG_INSISTENT;

/*
* 添加振动，可以添加默认的振动defaults，也可以添加自定义振动vibrate
* 另外还需要注意一点：使用振动器时需要权限，如下：
* <uses-permission android:name="android.permission.VIBRATE"></uses-permission>
* */
notification.defaults |= Notification.DEFAULT_VIBRATE;

/*
* 设置灯光
* */
notification.defaults |= Notification.DEFAULT_LIGHTS;

manager.notify(1,notification);// 这个notification 的 id 设为1023
//=====================状态栏提示 end =================
}

//获取设备SD卡中的歌曲路径
public List<String> getSDCardMusic(Context context){
String musicPath;
int isMusic;
Cursor cursor = context.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,null,null,null,
MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
List<String> musics = new ArrayList<>();
for(int i=0;i<cursor.getCount();i++){
cursor.moveToNext();
musicPath = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
//            Log.d("AlarmReceiver","musicName="+musicName);
isMusic = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.IS_MUSIC));
if(isMusic != 0){
musics.add(musicName);
}
}
return musics;
}
}