我现在有每天重复的通知，每天下午6点重复。我想做的是不是6pm，而是在事件即将开始时显示通知。我有一个events arraylist，它包含日期和时间，这是可能的。下面是我当前显示通知的方式。
这是我主要的activity
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.HOUR_OF_DAY, 18);
calendar.set(Calendar.MINUTE, 30);
calendar.set(Calendar.SECOND, 0);
Intent intent1 = new Intent(MainActivity.this, AlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0,intent1, PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager am = (AlarmManager) MainActivity.this.getSystemService(MainActivity.this.ALARM_SERVICE);
am.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);
这是在我的broadcast_reciever课上
公共类AlarmReceiver扩展了
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(context, EVentsPerform.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder mNotifyBuilder = new NotificationCompat.Builder(
context).setSmallIcon(R.drawable.applogo)
.setContentTitle("Alarm Fired")
.setContentText("Events To be PErformed").setSound(alarmSound)
.setAutoCancel(true).setWhen(when)
.setContentIntent(pendingIntent)
.setVibrate(new long[]{1000, 1000, 1000, 1000, 1000});
notificationManager.notify(MID, mNotifyBuilder.build());
MID++;
}
}
我不确定如何设置时间，所以它会重复什么时候和如果有一个事件。感谢您的任何指点和帮助。谢谢
您可以为每个事件设置一个警报。读取数据库中的所有事件时间，然后为这些事件设置单独的警报。不要使用setRepeating。设定的报警变种是为不同的安卓版本将手机从睡眠中唤醒。
private void setAlarm(Long dateInMillis) {
AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent alarmIntent = new Intent(this, AlarmReceiver.class);
PendingIntent pi = PendingIntent.getBroadcast(getApplicationContext(), 0, alarmIntent, PendingIntent.FLAG_UPDATE_CURRENT);
if (Build.VERSION.SDK_INT >= 23) {
am.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP, dateInMillis, pi);
} else if (Build.VERSION.SDK_INT >= 19) {
am.setExact(AlarmManager.RTC_WAKEUP, dateInMillis, pi);
} else {
am.set(AlarmManager.RTC_WAKEUP, dateInMillis, pi);
}
}
DateInmilis是Calender.GetInstance（）.GetTimeInmilis()用于您要设置警报的时间。所以我希望你有一个长存储在你数据库中，这是使你的生活更容易的价值
public ArrayList<String> getAlarms() {
SQLiteDatabase db;
ArrayList<String> result = new ArrayList<String>();
String myPath = DATABASE_PATH + DATABASE_NAME;
db = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY);
selectQuery = "SELECT * FROM TABLE";
Cursor cursor = db.rawQuery(selectQuery, null);
if (cursor.moveToFirst()) {
result.add(cursor.getString(cursor.getColumnIndex("WhateverYourColumnIs")));
while (cursor.moveToNext()) {
result.add(cursor.getString(cursor.getColumnIndex("WhateverYourColumnIs")));
}
}
cursor.close();
db.close();
return result;
}
您可以将字符串转换为一个长的
DatabaseHelper db = new DatabaseHelper();
ArrayList<String> alarms = db.getAlarms()
for(String alarm : alarms){
try{
setAlarm(Long.parseLong(alarm));
}catch(NumberFormatException nfe){
//Not a number
}
}
差不多吧
private Long calendarMillis(String date, String time){
Long result;
//Do A bunch of stuff to get the information to fill in below from what you bring in.
Calendar c = Calendar.getInstance();
c.set(Calendar.YEAR, year);
//...Calendar.HOUR, Calendar.MONTH, Calendar.DAY
c.set(Calendar.MINUTE, minute);
result = c.getTimeInMillis();
return result;
}
public class NotificationInformation{
Long alarmTime;
String name;
public void NotificationInformation(){
}
public void NotificationInformation(NotificationInformation ni){
this.name = ni.getName();
this.alarmTime = ni.getAlarmTime();
}
//getters and setters
public void setAlarmTime(Long alarmTime){
this.alarmTime = alarmTime;
}
public void setName(String name){
this.nime = nime;
}
public Long getAlarmTime(){
return alarmTime;
}
public String getName(){
return name;
}
}
