how does communication between service and activity works?

Question

Hi,

I open a new thread to talk about my problem :-) , I have problems with communication between "service" to the "Activity"

what I have: I have a FTP download of a file that is downloaded in the background as a service! In the end I had a time X in a variable. furthermore it is checked whether the file is also fully load , I make it with a simple comparison of the data size.

So I have a time 0s "start time" 12:22:00 up as 20sec is "end time" 12:22:20 and a download size of 0Kb goes to 5000kb.

These values are defined in the service.

Project:

I want to show this graphically or via text in the GUI of the activity .

like this:

File Download time: X seconds X seconds, will be scanned progressively and dynamically displayed. 1. sec, 2 sec ...... 20 sec

Download traffic: X kb of 5000 kb

Download rate is to be displayed: 0kb, 250 kb, 500 kb ..... 5000 kb.

Now my question:

how do I do that, which transfers the service these values to the activity! and how can I display in the activity "dynamically and automatically."

I thank you all for your efforts

Answer 1

Send a broadcast Intent with the data via sendBroadcast(), that the activity picks up with a BroadcastReceiver. Here is a sample project from one of my books demonstrating this.

Answer 2

many thanks , the sample project is not working on my system, do you have any simplier and easier example code for me