问题描述
我已经为两个通知渠道编写了代码。但是一个通知触发了另一个通知，因此显示了两个通知。我已经尝试过FLAG_ONE_SHOT的{{1}}，但这是相同的。
pendingIntent类：
NotificationHelper public class NotificationHelper extends Contextwrapper {
public static final String channel1ID = "channel1ID";
public static final String channel1Name = "Add transactions reminder";
public static final String channel2ID = "channel2ID";
public static final String channel2Name = "Due and overdue bills";
private notificationmanager mManager;
public NotificationHelper(Context base) {
super(base);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O)
createChannels();
}
@RequiresApi(api = Build.VERSION_CODES.O)
public void createChannels() {
NotificationChannel channel1 = new NotificationChannel(channel1ID,channel1Name,notificationmanager.IMPORTANCE_DEFAULT);
channel1.enableLights(true);
channel1.enableVibration(true);
channel1.setLightColor(R.color.colorPrimary);
channel1.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
getManager().createNotificationChannel(channel1);
NotificationChannel channel2 = new NotificationChannel(channel2ID,channel2Name,notificationmanager.IMPORTANCE_DEFAULT);
channel2.enableLights(true);
channel2.enableVibration(true);
channel2.setLightColor(R.color.colorPrimary);
channel2.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
getManager().createNotificationChannel(channel2);
}
public notificationmanager getManager() {
if (mManager == null) {
mManager = (notificationmanager) getSystemService(Context.NOTIFICATION_SERVICE);
}
return mManager;
}
public NotificationCompat.Builder getChannel1Notification(String title,String message) {
Intent intent = new Intent(getApplicationContext(),MainActivity.class);
int reqCode = (int) System.currentTimeMillis();
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(),reqCode,intent,PendingIntent.FLAG_UPDATE_CURRENT);
return new NotificationCompat.Builder(getApplicationContext(),channel1ID)
.setContentTitle(title)
.setContentText(message)
.setSmallIcon(R.drawable.ic_notification_icon)
.setAutoCancel(true)
.setContentIntent(pendingIntent);
}
public NotificationCompat.Builder getChannel2Notification(String title,channel2ID)
.setContentTitle(title)
.setContentText(message)
.setSmallIcon(R.drawable.ic_notification_icon)
.setAutoCancel(true)
.setContentIntent(pendingIntent);
}
}
类：
AlertReceiverpublic class AlertReceiver extends broadcastReceiver {
public static final String TAG = "AlertReceiver";
@Override
public void onReceive(Context context,Intent intent) {
NotificationHelper notificationHelper = new NotificationHelper(context);
//add transactions reminder
NotificationCompat.Builder nb1 = notificationHelper.getChannel1Notification(
notificationHelper.getString(R.string.trans_notify_title),notificationHelper.getString(R.string.notification_msg)
);
notificationHelper.getManager().notify(1,nb1.build());
//due and overdue bills
NotificationCompat.Builder nb2 = notificationHelper.getChannel2Notification(
notificationHelper.getString(R.string.bills_notify_title),notificationHelper.getString(R.string.notification_msg)
);
notificationHelper.getManager().notify(2,nb2.build());
}
}
第二次通知：
public void startAlarm(Calendar c) {
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this,AlertReceiver.class);
int reqCode = (int) System.currentTimeMillis();
PendingIntent pendingIntent = PendingIntent.getbroadcast(this,PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager.setExact(AlarmManager.RTC_WAKEUP,c.getTimeInMillis(),pendingIntent);
Toast.makeText(this,getString(R.string.notification_set_at) + timeString + getString(R.string.everydayy),Toast.LENGTH_LONG).show();
}
（{private void setNotifications(int dueDayOfYear) {
LocalDate dueDate = LocalDate.ofYearDay(LocalDate.Now().getYear(),dueDayOfYear);
LocalDateTime prevDay = dueDate.minusDays(1).atStartOfDay().plusHours(14).plusMinutes(7);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(context,AlertReceiver.class);
int reqCode = (int) System.currentTimeMillis();
PendingIntent pendingIntent = PendingIntent.getbroadcast(context,prevDay.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli(),pendingIntent);
}
和plusHours用于测试并确保在不同时间设置通知）
我认为plusMinutes类有问题，但我无法弄清楚。我该如何解决？
解决方法
发现了问题。
在notify()类中调用AlertReceiver时。我通过在调用它时生成一个唯一的ID来解决它。
public void onReceive(Context context,Intent intent) {
NotificationHelper notificationHelper = new NotificationHelper(context);
int id = (int) System.currentTimeMillis(); //this is the fix
//add transactions reminder
NotificationCompat.Builder nb1 = notificationHelper.getChannel1Notification(
notificationHelper.getString(R.string.trans_notify_title),notificationHelper.getString(R.string.notification_msg)
);
notificationHelper.getManager().notify(id,nb1.build());
//due and overdue bills
NotificationCompat.Builder nb2 = notificationHelper.getChannel2Notification(
notificationHelper.getString(R.string.bills_notify_title),nb2.build());