How to create a background service that fires intents at specified intervals even when phone is in sleep mode?

I’m very doomed today! I’m serious - I am. Firstly I’ve got the tension to get this project done by Christmas, and then that heck AlarmManager, it’s dooming up my life! I went around with Handlers, TImerTasks and realized that none of them can work in the background. Now this is my aim:

  1. Set an alarm that sends an intent to start an activity after fifteen minutes.

  2. Once that alarm has completed execution - another alarm is set for two minutes

  3. This alarm launches another activity and also starts the 15 minute alarm.

  4. This continues on till the alarms are cancelled manually.

That is the logic, but none of it helps. I’m so sad right now! I need someone to write some code. Please do. I went all over Stack Overflow, and there is no genius who can answer that. I believe someone here can help. My life has turned to hell now!

Is this related to a problem on freeCodeCamp curriculum?

While we are primarily here to help people with their Free Code Camp progress, we are open to people on other paths, too. Some of what you are asking is pretty trivial in the Free Code Camp context, so you might find that if you’re not getting the instruction and material you need in your current studies, the FCC curriculum will really help you get started. At a modest guess I’d say investing a 4-5 hours working through the curriculum here will really pay off. You can find the curriculum at

With your current questions, we don’t have enough context to know what you already know or don’t know, so it is impossible to guide you without just telling you the answer (which we won’t do).

It is pretty typical on here for people to share a codepen / jsfiddle example of what they have tried so that anyone helping has more of an idea of what help is actually helpful.

Please provide some example of what you’ve tried and I’m sure you’ll get more help.

Happy coding :slight_smile:

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It’s fixed now. I got it to work