Can somebody explain how to use ASyncTask with Android?

Question

I\'ve been doing a bunch of research and looking over the documentation for ASyncTask in Android, but I just can\'t seem to wrap my head around it. I simply want to run some

Answer 1

My basic suggestion is to research more about AsyncTask but I'll as well try and Answer your questions:

1- In the angle brackets, I have Void, Void, Void. What exactly do those represent and how do I know what's correct to place in there?

They are the input argument types for the overridden methods: doInBackground() onPreExecute(), onProgressUpdate() and ... respectively.

2- For each method within the class, I have the each method called as void. When should they be different than void (like boolean, String, long, etc.)?

I'll give you an example: onPostExecute() is guaranteed to be called after doInBackground(), so if onPostExecute(int someCounter) has an integer in its input, then doInBackground() should return an integer rather than void. So it will be declared like this:

 int doInBackground(){
//bla bla bla
int someIntegerValue;
return someIntegerValue;
}

3- For the doInBackground() method, I have Void... voids in the parenthesis. What exactly should I be putting in there? What do they represent?

They are var-args, basically speaking, they represent Variable number of Arguments. Read more about them here.

Once again I suggest you delve into threading in Android and get a sense of why AsyncTask is needed. Good Luck,