Handle single progressdialog with parallel multiple asynctask

Question

In my Project I want to parallelly load the data from 3 different url's(webservice) while loading the page.

for this I use 3 different asynctask to load data.

I want to show the progress dialog message as "loading" when first asynctask is started and close dialog after last asynctask is completed(until complete 3 tasks show progress dialog).

Please tell me the way to handle this situation.

Answer 1

There are different ways to handle this situation.

1. You can use a counter variable initialized with the number of tasks, and this counter gets decremented when an AsyncTask is complete. When the counter is 0, the ProgressDialog is dismissed. You can do this decrement and checking for progress dialog dismissal in each of the AysncTask's onPostExecute.

2. You may not need the 3 different AsyncTasks. You can use a single AsyncTask with a CountDownLatch for Thread synchronization.