我们的Sprint3冲刺——闹钟的添加和管理（刘铸辉，何晓楠）
闹钟是我们生活中常用的工具。由于我们的软件是学生日程管理系统，所以必须有提醒功能，在android系统中提供了强大的闹钟接口，并且使用起来也非常简单。AlarmManager是android提供的闹铃管理接口。我们想创建一个闹铃程序就需要通过它来完成。那么接下来就看一下创建闹钟的过程：
1. 获取AlarmManager对象
1 public class AlarmHelper {
2
3 private Context c;
4 private AlarmManager mAlarmManager;
5
6 public AlarmHelper(Context c) {
7 this.c = c;
8 mAlarmManager = (AlarmManager) c
9 .getSystemService(Context.ALARM_SERVICE);
10 }
11
12 public void openAlarm(int id,String content,long time) {
13 Intent intent = new Intent();
14 intent.putExtra("content", content);
15 intent.putExtra("time", time);
16 intent.setClass(c,CallAlarm.class);
17 PendingIntent pi = PendingIntent.getBroadcast(c, id, intent,
18 PendingIntent.FLAG_UPDATE_CURRENT);
19 mAlarmManager.set(AlarmManager.RTC_WAKEUP, time, pi);
20 }
21
22 public void closeAlarm(int id, String title, String content) {
23 Intent intent = new Intent();
24 intent.putExtra("_id", id);
25 intent.putExtra("title", title);
26 intent.putExtra("content", content);
27 intent.setClass(c, CallAlarm.class);
28 PendingIntent pi = PendingIntent.getBroadcast(c, id, intent, 0);
29 mAlarmManager.cancel(pi);
30 }
31 }
2.为AlarmManager建立一个receiver类，这个类是用来接收广播的闹铃事件的，我们也可以看作是闹铃的处理程序吧。
1 public class BootReceiver extends BroadcastReceiver {
2 public void onReceive(Context context, Intent intent) {
3 String action = intent.getAction();
4 if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
5 ScheduleViewAddActivity.setAlart(context);
6 }
7 }
8 }
这个类需要继承自BroadcastReceiver类，这里有两种方式来接收Intent的广播事件，一是动态注册一个Receiver；二是创建一个继承自BroadcastReceiver的类
3.
创建两个Intent，一个是用于AlarmReceiver类处理的，一个是用于广播的
1 public class CallAlarm extends BroadcastReceiver {
2 @Override
3 public void onReceive(Context context, Intent intent) {
4 String content=intent.getExtras().getString("content");
5 intent.putExtra("content", content);
6 intent.putExtra("time", intent.getExtras().getLong("time"));
7 intent.setClass(context,AlarmAlert.class);
8 intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
9 context.startActivity(intent);
10 }
4. 要设置它震动和要响应的铃声
1 public class AlarmAlert extends Activity {
2 private Dialog builder;
3 private MediaPlayer mp;
4 private Vibrator vibrator;
5 @Override
6 protected void onCreate(Bundle savedInstanceState) {
7 super.onCreate(savedInstanceState);
8 requestWindowFeature(Window.FEATURE_NO_TITLE);
9 setContentView(R.layout.tixing);
10 mp = new MediaPlayer();
11 //控制响铃震动时长
12 new Thread(){
13 public void run(){
14 try {
15 Thread.sleep(53000);
16 if(mp!=null){
17 mp.stop();
18 vibrator.cancel();
19 }else if(vibrator!=null){
20 vibrator.cancel();
21 }
22 } catch (InterruptedException e) {
23 // TODO Auto-generated catch block
24 e.printStackTrace();
25 }
26 }
27 }.start();
28 try {
29 //播放当前默认铃声
30 mp.setDataSource(this, RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE));
31 mp.prepare();
32 mp.setLooping(true);
33 mp.start();
34 } catch (IllegalArgumentException e) {
35 // TODO Auto-generated catch block
36 e.printStackTrace();
37 } catch (SecurityException e) {
38 // TODO Auto-generated catch block
39 e.printStackTrace();
40 } catch (IllegalStateException e) {
41 // TODO Auto-generated catch block
42 e.printStackTrace();
43 } catch (IOException e) {
44 // TODO Auto-generated catch block
45 e.printStackTrace();
46 }
47 //设置震动
48 vibrator = (Vibrator)getSystemService(Context.VIBRATOR_SERVICE);
49 long [] pattern = {700,1300,700,1300};
50 vibrator.vibrate(pattern,2);
51 String content=getIntent().getExtras().getString("content");
52 TextView dialog_content=(TextView) findViewById(R.id.dialog_content);
53 Button dialog_button_cancel=(Button)findViewById(R.id.dialog_button_cancel);
54 dialog_content.setText(content);
55 dialog_button_cancel.setOnClickListener(new OnClickListener() {
56
57 public void onClick(View v) {
58 finish();
59 }
60 });
61 }
62 @Override
63 protected void onStop() {
64 ScheduleViewAddActivity.setAlart(AlarmAlert.this);
65 if(mp!=null){
66 mp.stop();
67 vibrator.cancel();
68 }else if(vibrator!=null){
69 vibrator.cancel();
70 }
71 super.onStop();
72 }
73
74 }
5.然后我们还要设置真正能让alarm起作用的参数
1 //设置闹钟，只能设置一个闹铃时间，所以在响铃过后要重新判断最近的时间重新设置闹铃
2 public static void setAlart(Context context){
3 ScheduleDAO dao1=new ScheduleDAO(context);
4 ArrayList<ScheduleVO> arrSch=dao1.getAllSchedule();
5 Calendar mCalendar = Calendar.getInstance();
6 mCalendar.setTimeInMillis(System.currentTimeMillis());
7 long time;
8 String content=arrSch.get(0).getScheduleContent();
9 time=arrSch.get(0).getAlartime();
10 for (ScheduleVO vo : arrSch) {
11 if(vo.getAlartime()>mCalendar.getTimeInMillis()){
12 if(time<mCalendar.getTimeInMillis()){
13 time=vo.getAlartime();
14 content=vo.getScheduleContent();
15 if(time>vo.getAlartime()){
16 time=vo.getAlartime();
17 content=vo.getScheduleContent();
18 }
19 }else{
20 if(time>vo.getAlartime()){
21 time=vo.getAlartime();
22 content=vo.getScheduleContent();
23 }
24 }
25 }
26 }
27 if(time>mCalendar.getTimeInMillis()){
28 }
29 }
6.最后绑定到每个日历事件中
1 /**
2 * 通过选择提醒次数来处理最后的显示结果
3 * @param year
4 * @param month
5 * @param day
6 * @param hour
7 * @param minute
8 * @param week
9 * @param remindID
10 */
11 public String handleInfo(int year, int month, int day, int hour, int minute, String week, int remindID){
12 String remindType = remind[remindID]; //提醒类型
13 String show = "";
14 if(0 <= remindID && remindID <= 4){
15 //提醒一次,隔10分钟,隔30分钟,隔一小时
16 show = year+"-"+month+"-"+day+"\t"+hour+":"+minute+"\t"+week+"\t\t"+remindType;
17 }else if(remindID == 5){
18 //每周
19 show = "每周"+week+"\t"+hour+":"+minute;
20 }else if(remindID == 6){
21 //每月
22 show = "每月"+day+"号"+"\t"+hour+":"+minute;
23 }else if(remindID == 7){
24 //每年
25 show = "每年"+month+"-"+day+"\t"+hour+":"+minute;
26 }
27 return show;
28 }
29
1 /**
2 * 设置日程标记日期
3 * @param remindID
4 * @param year
5 * @param month
6 * @param day
7 */
8 public void setScheduleDateTag(int remindID, String year, String month, String day,int scheduleID){
9 SimpleDateFormat format = new SimpleDateFormat("yyyy-M-d");
10 String d = year+"-"+month+"-"+day;
11 Calendar cal = Calendar.getInstance();
12 try {
13 cal.setTime(format.parse(d));
14 } catch (ParseException e) {
15 // TODO Auto-generated catch block
16 e.printStackTrace();
17 }
18 //封装要标记的日期
19 if(remindID >= 0 && remindID <= 3){
20 //"提醒一次","隔10分钟","隔30分钟","隔一小时"（只需标记当前这一天）
21 ScheduleDateTag dateTag = new ScheduleDateTag();
22 dateTag.setYear(Integer.parseInt(year));
23 dateTag.setMonth(Integer.parseInt(month));
24 dateTag.setDay(Integer.parseInt(day));
25 dateTag.setScheduleID(scheduleID);
26 dateTagList.add(dateTag);
27 }else if(remindID == 4){
28 //每天重复(从设置的日程的开始的之后每一天多要标记)
29 for(int i =0; i <= (2049-Integer.parseInt(year))*12*4*7; i++){
30 if( i==0 ){
31 cal.add(Calendar.DATE, 0);
32 }else{
33 cal.add(Calendar.DATE, 1);
34 }
35 handleDate(cal,scheduleID);
36 }
37 }else if(remindID == 5){
38 //每周重复(从设置日程的这天(星期几)，接下来的每周的这一天多要标记)
39 for(int i =0; i <= (2049-Integer.parseInt(year))*12*4; i++){
40 if( i==0 ){
41 cal.add(Calendar.WEEK_OF_MONTH, 0);
42 }else{
43 cal.add(Calendar.WEEK_OF_MONTH, 1);
44 }
45 handleDate(cal,scheduleID);
46 }
47 }else if(remindID == 6){
48 //每月重复(从设置日程的这天(几月几号)，接下来的每月的这一天多要标记)
49 for(int i =0; i <= (2049-Integer.parseInt(year))*12; i++){
50 if( i==0 ){
51 cal.add(Calendar.MONTH, 0);
52 }else{
53 cal.add(Calendar.MONTH, 1);
54 }
55 handleDate(cal,scheduleID);
56 }
57 }else if(remindID == 7){
58 //每年重复(从设置日程的这天(哪一年几月几号)，接下来的每年的这一天多要标记)
59 for(int i =0; i <= 2049-Integer.parseInt(year); i++){
60 if( i==0 ){
61 cal.add(Calendar.YEAR, 0);
62 }else{
63 cal.add(Calendar.YEAR, 1);
64 }
65 handleDate(cal,scheduleID);
66 }
67 }
68 //将标记日期存入数据库中
69 dao.saveTagDate(dateTagList);
70 }
【最后的总结】我们的Sprint3冲刺——闹钟的添加和管理（刘铸辉，何晓楠）,布布扣,bubuko.com
时间： 2024-10-27 14:03:20