Android calling AsyncTask right after an another finished

Question

I have some problem with Android AsyncTask. There is an Activity which contains some TextView a button and a picture. When an user entered this activity I start an asynctask

Answer 1

I have an idea to make async series in just one async task:

protected Boolean doInBackground(String... params) {
            if(params[0] == "taskA") {
              //do somthing
              params[0] = "taskB";
            }
            if(params[0] == "taskB") {
              //do somthing
              params[0] = "taskC";
            }
            if(params[0] == "taskC") {
              //do somthing
              params[0] = "taskD";
            }
            if(params[0] == "taskD") {
              //do somthing
              return true;
            }

And in your main thread just call async task like this:

ShowMyProgress(); //if you like
new MyAsyncTask().execute("taskA");

And finally you can hide your progress on onPostExecute like:

protected void onPostExecute(final Boolean success) {
        if (success) {
            ....

            HideMyProgress();
        }
}