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Android

Posted by Kenneth Phillips
Kenneth Phillips
Courses Plus Student 10,188 Points

Notification keeps repeating

I already have published an app to the Google Play Store called SubjectOfThought. In the app I publish a daily topic on something interesting about science, technology, or history. Every day I have the app set to send a notification at 8:00 am because that is when I update the topic. However I didn't notice until now that the notification will repeat several times after this because I put the method in the onCreate Method. So how would I set notifications to repeat daily without sending one every time the user opens the app?

Here is my code for my activities.

MainActivity:

package com.subjectofthought.subjectofthought;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {

    private WebView webview;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        webview = (WebView) findViewById(R.id.myWebView);
        WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true);
        webview.loadUrl("http://opensourceco.com/");
        webview.setWebViewClient(new WebViewClient());
        setNotification();



    }

    public void setNotification() {
        Calendar calendar = Calendar.getInstance();

        calendar.set(calendar.HOUR_OF_DAY, 8);
        calendar.set(calendar.MINUTE, 1);

        Intent intent = new Intent(getApplicationContext(), Notification_receiver.class);

        PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_CANCEL_CURRENT);

        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, pendingIntent);

    }


}

Broadcast Receiver:

package com.subjectofthought.subjectofthought;

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;

/**
 * Created by gener on 2/1/2018.
 */

public class Notification_receiver extends BroadcastReceiver{
    @Override
    public void onReceive(Context context, Intent intent) {
        NotificationManager notificationManager =  (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

        Intent repeating_intent = new Intent(context, MainActivity.class);
        repeating_intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(context, 100, repeating_intent, PendingIntent.FLAG_UPDATE_CURRENT);

        NotificationCompat.Builder builder = new NotificationCompat.Builder(context).setContentIntent(pendingIntent)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setContentTitle("SubjectOfThought")
                .setContentText("New Topic for today")
                .setAutoCancel(true);

        notificationManager.notify(100, builder.build());
    }
}

PS: I apologize that I didn't just put this on GitHub. I'm having issues with it and the app is small so I just put it on here.

1 Answer

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

Let answer this with a question. What time does setNotification() set an alarm for if the app is opened before 8 am verses after 8 am on any particular day?

Kenneth Phillips
Kenneth Phillips
Courses Plus Student 10,188 Points

Right I know it will trigger after someone opens it because I put it in the onCreate() method. So how would I trigger this process once and have it keep running without doing that every time someone opens the app?