时间推送通知Java

Question

Ive recently got my push notifications for an app im working on to work. The only thing is that the notification comes immediately. But i need it to come after 10 minutes. Below is the code I have that works, how do I make it come after certain times?

public void onClick(View v) {
            Intent i = new Intent(new Intent(Settings.this, Start.class));
            startActivity(i);

            Intent intent = new Intent();
            PendingIntent pIntent = PendingIntent.getActivity(Settings.this, 0, intent, 0);
            Notification noti = new Notification.Builder(Settings.this)
                    .setTicker("TickerTitle")
                    .setContentTitle("Price-Tracker")
                    .setContentText("ContentText")
                    .setSmallIcon(R.mipmap.pw)
                    .setContentIntent(pIntent).getNotification();
            noti.flags = Notification.FLAG_AUTO_CANCEL;
            NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
            nm.notify(0, noti);

I tried changing the nm.notify(0, noti); to nm.notify(10, noti); for example but it did not work

Answer 1

Do no use thread.sleep, this is a horrible solution. Sleep is using blocking your thread while you could continue other job while waiting... Better use a Handler with post delayed or a AlarmManager to handle your waiting time.

Answer 2

you have to create a new Thread , set sleep for 10 minutes and then push the notification

public void onClick(View v) {
        Intent i = new Intent(Settings.this, Start.class);
        startActivity(i);

        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    // 10 minutes * 60000 milliseconds(1 minute)
                    Thread.sleep(10 * 60000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                Intent intent = new Intent();
                PendingIntent pIntent = PendingIntent.getActivity(Settings.this, 0, intent, 0);
                Notification noti = new Notification.Builder(Settings.this)
                        .setTicker("TickerTitle")
                        .setContentTitle("Price-Tracker")
                        .setContentText("ContentText")
                        .setSmallIcon(R.mipmap.pw)
                        .setContentIntent(pIntent).getNotification();
                noti.flags = Notification.FLAG_AUTO_CANCEL;
                NotificationManager nm = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
                nm.notify(0, noti);
            }
        }).start();
}

Also changing the nm.notify(0, noti); to nm.notify(10, noti); didn't do anything because 0 is which notification will show, which is the first

Answer 3

You can use android.os.Handler for performing a job with a delay.

long DELAY = 10 * 60 * 1000; // 10 minutes
new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            //the job you want to be executed after DELAY milliseconds
        }
    }, DELAY);

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Answer 4

Add following

       new Handler().postDelayed(new Runnable() {
                @Override
                public void run() {

                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            nm.notify(0, noti);
                        }
                    });

                }
       },600000);

10 min = 600000 millisecond

Use runOnUiThread to update the UI from another or worker thread

                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            nm.notify(0, noti);
                        }
                    });