Question

My problem is that I have an Activity and into there I want to take the result of the
read_list method. However the read_list method takes a lot of time to complete,
therefore I want to create a new Thread, and this to run this method and then
return it to the main activity. I know that I can do smt similar with the
AsyncTask, however now I want to do it with this way.

  public class Read<T> implements Runnable(){

    Thread t;
    read(){
         t = new Thread(this);
         t.start();
    }


    public void run(){

       read_list();
    }


    public ArrayList<T> read_list(){

       ..........
       return ArrayList<T>
    }



 }

The main Activity:

 public Name extends Activity{

    .
    .
    .

    Read<Data> read = new Read<Data>();
    read.read_list();

 }

Question: With the aforementioned code, will I activate a new thread to execute the
read_list method? Or the method will be executed on the main Thread?

Answer 1

new thread won’t be executed, however calling read.read() should start a new thread

btw. I would prefer using anonymous class, imho it is easier to read:

public Name<T> extends Activity{
  .
  .
  .
  private List<T> stuff;

  Runnable read = new Runnable(){
    public void run(){
      ...
      stuff = new ArrayList<T>(..);
    }
  };
  read.start();
}