Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Is there any way i can update 4 activity UI from a background service?
I have 4 activity with 4 image view, i want to update the image every 30 seconds.
All the activity should be update together.
Anyone can show me how to do that?
Instead of updating directly from Service, I think the Listener Pattern would be a better choice. You can do this in two ways:
Classic Listener Pattern of Java. You define a listener interface for your Activities, and update is called from the Service.
Android Specific. Use Broadcast to broadcast such an update intent from your Service class, and your Activity create an object to receive the broadcast.
Since your update period is measured in seconds, second approach could be easier and more scalable, so it is preferred.