我正在尝试使用一种方法来安排此处描述的每月警报：
但是，我遇到了两个错误：
AlarmManager am = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
和
PendingIntent sender = PendingIntent.getBroadcast(context,
声明“无法解析上下文”和“无法将上下文解析为变量”
...有关如何解决此问题的任何建议？
public class Alarm extends Service {
// compat to support older devices
@Override
public void onStart(Intent intent, int startId) {
onStartCommand(intent, 0, startId);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// your method to check if an alarm must be fired today
PendingIntent sender = PendingIntent.getBroadcast(context,
Integer.parseInt(Long.toString(id)), intent, 0);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(calendar.getTimeInMillis());
calendar.add(Calendar.SECOND, 30);
AlarmManager am = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
calendar.add(Calendar.MONTH, 1);
am.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), sender);
// reschedule me to check again tomorrow
Intent serviceIntent = new Intent(Alarm.this, Alarm.class);
PendingIntent restartServiceIntent = PendingIntent.getService(
Alarm.this, 0, serviceIntent, 0);
AlarmManager alarms = (AlarmManager) getSystemService(ALARM_SERVICE);
// cancel previous alarm
alarms.cancel(restartServiceIntent);
// schedule alarm for today + 1 day
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DATE, 1);
// schedule the alarm
alarms.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(),
restartServiceIntent);
}
@Override
public void onCreate() {
// TODO Auto-generated method stub
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public boolean onUnbind(Intent intent) {
// TODO Auto-generated method stub
return super.onUnbind(intent);
}
}