CODEWITHSUNDEEP
androidmultithreadingasynchronousandroid-asynctaskthread-safety
canpoint
canpoint

Reputation: 859

Android Asynctask and instance variable interaction

Lets say I have a class like below; 

class X {
 private List<String> listing;

   class XAsync extends AsyncTask... {
      <normal async task class>
       doInBackground {
          listing = <populating from a web service>
       }
   }

   public redirectList() {

     while(listing.size == 0) {
        continue;
     }
     redirect(listing);
   }
}

How to make sure that listing parameter sending within redirect method is populated successfully from async task? Making sure that listing is populated with while clause is a best practice or not?

Thanks

Upvotes: 0

Views: 42

Answers (1)

Ryan M
Ryan M

Reputation: 20147

You should return the value to be put in listing from doInBackground, and then use it in onPostExecute. That is, your redirect(listing); call should be in onPostExecute, and then you won't have any need for that while loop.

Upvotes: 1

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