下面是我的服务代码： -
提醒服务： -
public class ReminderService extends Service
{
DBAdapter dbAdapter;
//Timer timer;
int counter;
private NotificationManager nm;
List<Reminder> rem_lst ;
String str_CurrentMonth, str_storedDate, str_currentDate, str_CurrentDate,str_CurrentYear;;
Calendar calendar;
int month;
int year;
int day;
//final String dateTemplate = "MMMM yyyy";
final String monthTemplate = "MM";
String format = "yyyy/MM/dd hh:mm:ss";
SimpleDateFormat sdf1 = new SimpleDateFormat(format, Locale.US);
final String dateTemplate = "yyyy/MM/dd HH:mm:ss";
String Category, Note;
private static final String date = "dd";
private static final String yearTemplate = "yyyy";
ScheduledExecutorService scheduleTaskExecutor;
@Override
public IBinder onBind(Intent intent)
{
// TODO Auto-generated method stub
return null;
}
@Override
public void onCreate()
{
}
private void showNotifacation()
{
/*// TODO Auto-generated method stub
CharSequence text ="service_started";
// Set the icon, scrolling text and timestamp
Notification notification = new Notification(R.drawable.ic_launcher, text,
System.currentTimeMillis());
// The PendingIntent to launch our activity if the user selects this notification
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), 0);
// Set the info for the views that show in the notification panel.
notification.setLatestEventInfo(this, "ReminderService",
text, contentIntent);
// Send the notification.
// We use a layout id because it is a unique number. We use it later to cancel.
nm.notify(1, notification);*/
NotificationCompat.Builder builder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.icon72)
.setContentTitle(Category)
.setContentText(Note);
int NOTIFICATION_ID = 12345;
Intent targetIntent = new Intent(this,MainActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, targetIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
Uri uri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
builder.setSound(uri);
nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(NOTIFICATION_ID, builder.build());
return;
}
@Override
public void onDestroy()
{
// TODO Auto-generated method stub
super.onDestroy();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
super.onCreate();
scheduleTaskExecutor = Executors.newScheduledThreadPool(1);
dbAdapter = new DBAdapter(this);
dbAdapter.open();
calendar = Calendar.getInstance(Locale.US);
month = calendar.get(Calendar.MONTH) + 1;
year = calendar.get(Calendar.YEAR);
day = calendar.get(Calendar.DAY_OF_MONTH);
str_CurrentMonth = DateFormat.format(monthTemplate, calendar.getTime()).toString();
str_currentDate = DateFormat.format(dateTemplate, calendar.getTime()).toString();
str_CurrentDate = DateFormat.format(date, calendar.getTime()).toString();
str_CurrentYear = DateFormat.format(yearTemplate, calendar.getTime()).toString();
rem_lst = dbAdapter.getMonthlyReminders(str_CurrentMonth,str_CurrentDate,str_CurrentYear);
nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
// TODO Auto-generated method stub
//Toast.makeText(this, "Reminder Service Created", Toast.LENGTH_LONG).show();
// This schedule a runnable task every 2 minutes
scheduleTaskExecutor.scheduleAtFixedRate(new Runnable() {
public void run()
{
/*// Log.d("bgService", ""+TimeUnit.SECONDS);
calendar = Calendar.getInstance();
str_CurrentMonth = DateFormat.format(monthTemplate, calendar.getTime()).toString();
//str_currentDate = DateFormat.format(dateTemplate, calendar.getTime()).toString();
//str_currentDate = "2014/04/2 15:30:53";
Log.i("Current Date",""+str_currentDate);
for(int i = 0 ; i < rem_lst.size() ; i ++ )
{
String str_storedDate = rem_lst.get(i).rem_date;
String Category = rem_lst.get(i).rem_catagory;
// if(savedDate.compareTo(currentDate)>0){
// System.out.println("Date1 is after Date2");
// }
// if(savedDate.compareTo(currentDate)<0){
// System.out.println("Date1 is before Date2");
// }
if(str_storedDate.compareTo(str_currentDate)==0){
System.out.println("Date1 is equal to Date2");
showNotifacation();
}*/
String myFormat = "yyyy/MM/dd hh:mm:ss";
String yearFormat = "yyyy";
String monthFormat = "MM";
String dateFormat = "dd";
String timeFormat = "kk:mm:ss";
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
Date savedDate,currentDate;
for (int i = 0; i < rem_lst.size(); i++)
{
// Toast.makeText(this, ""+rem_lst.get(i).rem_date, Toast.LENGTH_LONG).show();
try
{
String str = rem_lst.get(i).rem_date;
Category = rem_lst.get(i).rem_catagory;
Note = rem_lst.get(i).rem_note;
//savedDate = sdf.parse(str);
savedDate = sdf.parse(str);
/*String CDate = String.valueOf(calendar.getTime());
currentDate = sdf.parse(CDate);*/
calendar = Calendar.getInstance(Locale.US);
//currentDate = calendar.getTime();
//currentDate = sdf.parse("2014/4/16 21:1:40");
//String cDate = DateFormat.format(dateTemplate,calendar.getTime()).toString();
//String cDate = calendar.getTime().toString();
//currentDate = sdf.parse(cDate);
//currentDate = calendar.getTime();
String currentMonth = DateFormat.format(monthFormat, calendar.getTime()).toString();
String currentYear = DateFormat.format(yearFormat, calendar.getTime()).toString();
String crtDate = DateFormat.format(dateFormat, calendar.getTime()).toString();
String currentTime = DateFormat.format(timeFormat, calendar.getTime()).toString();
String current = currentYear+"/"+currentMonth+"/"+crtDate+" "+currentTime;
currentDate = sdf.parse(current);
if(savedDate.compareTo(currentDate)==0){
System.out.println("Date1 is equal to Date2");
System.out.println("Showing Notification. . . . . . . . . ");
showNotifacation();
Globals.lst_reminder.remove(i);
break;
}
System.out.println("Date1 is not equal to Date2");
}catch (ParseException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
// else{
// System.out.println("How to get here?");
// }
// Toast.makeText(this,cDate.toString(), Toast.LENGTH_LONG).show();
}
}
}, 0, 1, TimeUnit.SECONDS);
//return super.onStartCommand(intent, flags, startId);
return START_STICKY;
}
}
我想在应用程序启动时启动服务，所以我在mainactivity的onCreate（）中调用了以下内容： -
getApplicationContext().startService(new Intent(getApplicationContext(), ReminderService.class));
在设置片段中，我给了两个开/关按钮，我为他们的onclick事件（）编写了以下内容： -
for： -
getActivity().startService(new Intent(getActivity(), ReminderService.class));
和关闭： -
getActivity().stopService(new Intent(getActivity(), ReminderService.class));
我的问题是当应用程序启动时，服务被调用但从未启动。当我进入设置片段并单击ON按钮和OFF按钮时，再次ON按钮它完美地工作。此外，它没有停止，我尝试timer.cancel和timer.purge（）但没有任何反应。有人请告诉我这里发生了什么？ 请建议我如何在设置屏幕上成功启动应用程序启动和开/关。
答案 0 :(得分：0)
只需在您的Android清单文件中声明您的服务：
<service android:name="<your service package (ie)com.emdsys.android.pacs.services.NotificationServiceforRecorder>" >
</service>